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Gomarasca S, Stefani F, Fasola E, La Porta CA, Bocchi S. Regional evaluation of glyphosate pollution in the minor irrigation network. Chemosphere 2024; 355:141679. [PMID: 38527632 DOI: 10.1016/j.chemosphere.2024.141679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 02/13/2024] [Accepted: 03/08/2024] [Indexed: 03/27/2024]
Abstract
Due to its low cost, its ease of use and to the "mild action" declared for long time by the Control and Approval Agencies towards it, the herbicide Glyphosate, is one of the currently best-selling and most-used agricultural products worldwide. In this work, we evaluated the presence and spread of Glyphosate in the Po River Basin (Northern Italy), one of the regions with the most intensified agriculture in Europe and where, by now for decades, a strong and general loss of aquatic biodiversity is observed. In order to carry out a more precise study of the real presence of this herbicide in the waters, samples were collected from the minor water network for two consecutive years, starting in 2022, at an interval time coinciding with those of the spring and summer crop treatments. In contrast to the sampling strategies generally adopted by Environmental Protection Agencies, a more focused sampling strategy was adopted to highlight the possible high concentrations in minor watercourses in direct contact with cultivated fields. Finally, we investigated the possible consequences that the higher amounts of Glyphosate found in our monitoring activities can have on stress reactions in plant (Groenlandia densa) and animal (Daphnia magna) In all the monitoring campaigns we detected exceeding European Environmental Quality Standard - EQS limits (0.1 μg/L) values. Furthermore, in some intensively agricultural areas, concentrations reached hundreds of μg/L, with the highest peaks during spring. In G. densa and D. magna, the exposition to increasing doses of herbicide showed a clear response linked to metabolic stress. Overall, our results highlight how, after several decades of its use, the Glyphosate use efficiency is still too low, leading to economic losses for the farm and to strong impacts on ecosystem health. Current EU policy indications call for an agroecological approach necessary to find alternatives to chemical weed control, which farms can develop in different contexts in order to achieve the sustainability goals set by the Farm to Fork strategy.
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Affiliation(s)
- Stefano Gomarasca
- Dep. of Environmental Science and Policy (ESP), University of Milan, Via Celoria 2, 20133, Milano, Italy.
| | - Fabrizio Stefani
- Water Research Institute-National Research Council (IRSA-CNR), Via del Mulino 19, 20861, Brugherio, MB, Italy.
| | - Emanuele Fasola
- Water Research Institute-National Research Council (IRSA-CNR), Via del Mulino 19, 20861, Brugherio, MB, Italy.
| | - Caterina Am La Porta
- Dep. of Environmental Science and Policy (ESP), University of Milan, Via Celoria 2, 20133, Milano, Italy.
| | - Stefano Bocchi
- Dep. of Environmental Science and Policy (ESP), University of Milan, Via Celoria 2, 20133, Milano, Italy.
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Safaei M, Kleinebecker T, Weis M, Große-Stoltenberg A. Tracking effects of extreme drought on coniferous forests from space using dynamic habitat indices. Heliyon 2024; 10:e27864. [PMID: 38560251 PMCID: PMC10981029 DOI: 10.1016/j.heliyon.2024.e27864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 02/27/2024] [Accepted: 03/07/2024] [Indexed: 04/04/2024] Open
Abstract
Terrestrial ecosystems such as coniferous forests in Central Europe are experiencing changes in health status following extreme droughts compounding with severe heat waves. The increasing temporal resolution and spatial coverage of earth observation data offer new opportunities to assess these dynamics. Dense time-series of optical satellite data allow for computing Dynamic Habitat Indices (DHIs), which have been predominantly used in biodiversity studies. However, DHIs cover three aspects of vegetation changes that could be affected by drought: annual productivity, minimum cover, and seasonality. Here, we evaluate the health status of coniferous forests in the federal state of Hesse in Germany over the period 2017-2020 including the severe drought year of 2018 using DHIs based on the Normalized Difference Vegetation Index (NDVI) for drought assessment. To identify the most important variables affecting coniferous forest die-off, a series of environmental variables together with the three DHIs components were used in a logistic regression (LR) model. Each DHI component changed significantly across non-damaged and damaged sites in all years (p-value 0.05). When comparing 2017 to 2019, DHI-based annual productivity decreased and seasonality increased. Most importantly, none of the DHI components had reached pre-drought conditions, which likely indicates a change in ecosystem functioning. We also identified spatially explicit areas highly affected by drought. The LR model revealed that in addition to common environmental parameters related to temperature, precipitation, and elevation, DHI components were the most important factors explaining the health status. Our analysis demonstrates the potential of DHIs to capture the effect of drought events on Central European coniferous forest ecosystems. Since the spaceborne data are available at the global level, this approach can be applied to track the dynamics of ecosystem conditions in other regions, at larger spatial scales, and for other Land Use/Land Cover types.
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Affiliation(s)
- Mojdeh Safaei
- Division of Landscape Ecology and Landscape Planning, Institute of Landscape Ecology and Resource Management, IFZ Research Centre for Biosystems, Land Use and Nutrition, Justus Liebig University Giessen, Heinrich-Buff Ring 26-32, 35392, Giessen, Germany
| | - Till Kleinebecker
- Division of Landscape Ecology and Landscape Planning, Institute of Landscape Ecology and Resource Management, IFZ Research Centre for Biosystems, Land Use and Nutrition, Justus Liebig University Giessen, Heinrich-Buff Ring 26-32, 35392, Giessen, Germany
- Center for International Development and Environmental Research (ZEU), Senckenbergstrasse 3, 35390, Giessen, Germany
| | - Manuel Weis
- Hessian Agency for Nature Conservation, Environment and Geology (HLNUG), Rheingaustraße 186, 65203, Wiesbaden, Germany
| | - André Große-Stoltenberg
- Division of Landscape Ecology and Landscape Planning, Institute of Landscape Ecology and Resource Management, IFZ Research Centre for Biosystems, Land Use and Nutrition, Justus Liebig University Giessen, Heinrich-Buff Ring 26-32, 35392, Giessen, Germany
- Center for International Development and Environmental Research (ZEU), Senckenbergstrasse 3, 35390, Giessen, Germany
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Jiang S, Feng F, Zhang X, Xu C, Jia B, Lafortezza R. Ecological transformation is the key to improve ecosystem health for resource-exhausted cities: A case study in China based on future development scenarios. Sci Total Environ 2024; 921:171147. [PMID: 38395169 DOI: 10.1016/j.scitotenv.2024.171147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/18/2024] [Accepted: 02/19/2024] [Indexed: 02/25/2024]
Abstract
Numerous cities are currently grappling with the challenge of ecological transformation, especially those categorized as resource-exhausted cities. In these urban areas, land use change is a highly scrutinized issue, as different land use strategies can lead to varied outcomes, impacting the ecological environment in multiple dimensions. Assessing ecosystem health reflects the quality of the regional ecological environment and serves as a comprehensive indicator for evaluating the sustainability and stability of urban ecosystems. To this end, a multi-objective optimization model was constructed to predict land use changes under four future development scenarios (four ecological transformation modes), using Shizuishan City (China), a resource-exhausted city situated in an ecologically fragile area, as an example. The "vigor-organization-resilience" assessment framework was employed to evaluate the ecosystem health conditions in each scenario from three dimensions. The study results showed: (1) The ranking of the average ecological health levels in Shizuishan City for 2022 and different future development scenarios is as follows: Low-Carbon Economic Development Scenario (0.302) > Ecological-Economic Coordinated Development Scenario (0.291) > Baseline Scenario (0.290) > Economic Development Scenario (0.281) > 2022 (0.248). (2) Compared to 2022, the ecosystem health levels under the four ecological transformation modes had all improved, with improvement areas accounting for over 60 %, highlighting the urgent necessity of ecological transformation in Shizuishan City. Among them, the Low-Carbon Economic Development Scenario exhibited the largest improvement area, reaching 75.81 %. (3) Ecological system vitality was identified as the dominant dimension influencing the ecological health in this region. This study emphasized multi-objective development needs and provided an integrated ecosystem health assessment method for assessing the comprehensive ecological effects of future ecological transformation modes in resource-exhausted cities.
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Affiliation(s)
- Simin Jiang
- Research Centre of Urban Forestry, Key Laboratory for Silviculture and Forest Ecosystem of State Forestry and Grassland Administration, Beijing Forestry University, Beijing 100083, China
| | - Fei Feng
- Research Centre of Urban Forestry, Key Laboratory for Silviculture and Forest Ecosystem of State Forestry and Grassland Administration, Beijing Forestry University, Beijing 100083, China.
| | - Xinna Zhang
- Research Centre of Urban Forestry, Key Laboratory for Silviculture and Forest Ecosystem of State Forestry and Grassland Administration, Beijing Forestry University, Beijing 100083, China.
| | - Chengyang Xu
- Research Centre of Urban Forestry, Key Laboratory for Silviculture and Forest Ecosystem of State Forestry and Grassland Administration, Beijing Forestry University, Beijing 100083, China
| | - Baoquan Jia
- Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Raffaele Lafortezza
- Research Centre of Urban Forestry, Key Laboratory for Silviculture and Forest Ecosystem of State Forestry and Grassland Administration, Beijing Forestry University, Beijing 100083, China; Department of Soil, Plant and Food Sciences, University of Bari Aldo Moro, Via Amendola 165/A, 70126 Bari, Italy
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Lukhabi DK, Mensah PK, Asare NK, Akwetey MFA, Faseyi CA. Benthic macroinvertebrates as indicators of water quality: A case study of estuarine ecosystems along the coast of Ghana. Heliyon 2024; 10:e28018. [PMID: 38596140 PMCID: PMC11002552 DOI: 10.1016/j.heliyon.2024.e28018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 02/09/2024] [Accepted: 03/11/2024] [Indexed: 04/11/2024] Open
Abstract
Increasing human activities in coastal areas of Ghana have led to the degradation of many surface waterbodies, with significant consequences for the ecosystems in the affected areas. Thus, this degradation extremely affects the health of ecosystems and disrupts the essential services they provide. The present study explored the use of benthic macroinvertebrates as an indicator of estuarine degradation along the coast of Ghana. Water and sediment samples were collected bimonthly from Ankobra, Kakum and Volta estuaries for physicochemical parameters, nutrients and benthic macroinvertebrates. The findings revealed the dominance of pollution-tolerant taxa such as Capitella sp., Nereis sp., Heteromastus sp., Tubifex sp., Cossura sp. and Chironomous sp. in Kakum Estuary while pollution-sensitive taxa such as Scoloplos sp., Euridice sp., Lumbriconereis sp. and Pachymelania sp. in the Volta Estuary. The species-environment interactions showed dissolved oxygen, temperature, salinity, orthophosphate, nitrates, ammonium, electrical conductivity, turbidity, and chemical oxygen demand as the most significant parameters that complement the use of benthic macroinvertebrates as indicators of environmental quality in the studied estuaries. There were correlations of some benthic macroinvertebrate taxa with environmental factors in the estuaries suggesting low, moderate and high levels of pollution in the Volta, Kakum and Ankobra estuaries, respectively. Nevertheless, the study finds Kakum Estuary to be the ecologically healthiest estuary than the Volta and Ankobra Estuaries. Therefore, the study has shown benthic macroinvertebrates as a key indicator of ecosystem health alterations, and it is recommended that they should be incorporated with other environmental data for pollution monitoring in Ghanaian coastal waters.
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Affiliation(s)
- Dorothy Khasisi Lukhabi
- Centre for Coastal Management-Africa Centre of Excellence in Coastal Resilience, University of Cape Coast, Cape Coast 00223, Ghana
- Department of Fisheries and Aquatic Sciences, School of Biological Sciences, University of Cape Coast, Ghana
| | - Paul Kojo Mensah
- Department of Fisheries and Aquatic Sciences, School of Biological Sciences, University of Cape Coast, Ghana
- Institute for Water Research, Rhodes University, Makhanda 6140, South Africa
| | - Noble Kwame Asare
- Centre for Coastal Management-Africa Centre of Excellence in Coastal Resilience, University of Cape Coast, Cape Coast 00223, Ghana
- Department of Fisheries and Aquatic Sciences, School of Biological Sciences, University of Cape Coast, Ghana
| | | | - Charles Abimbola Faseyi
- Centre for Coastal Management-Africa Centre of Excellence in Coastal Resilience, University of Cape Coast, Cape Coast 00223, Ghana
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Zhang S, Zheng T, Zhou M, Niu B, Li Y. Exposure to the mixotrophic dinoflagellate Lepidodinium sp. and its cues increase toxin production of Pseudo-nitzschia multiseries. Sci Total Environ 2024; 914:169812. [PMID: 38181942 DOI: 10.1016/j.scitotenv.2023.169812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/07/2024]
Abstract
The present study examined the defense responses of toxigenic Pseudo-nitzschia species (P. multiseries) to a mixotrophic dinoflagellate, Lepidodinium sp., and its associated cues. We evaluated their responses to different predation risks, including direct physical contact and indirect interactions facilitated by cues from Lepidodinium sp. during active feeding on heterospecific prey (Rhodonomas salina), limited feeding on conspecific prey (P. multiseries) and non-feeding (autotrophic growth in f/2 medium) states. This study is the first investigation of these trophic interactions. Our results demonstrated a significant increase in cellular domoic acid (cDA) in P. multiseries when exposed to Lepidodinium sp. and its associated cues, which was 1.38 to 2.42 times higher than the non-induced group. Notably, this increase was observed regardless of Lepidodinium sp. feeding on this toxic diatom and nutritional modes. However, the most significant increase occurred when they directly interacted. These findings suggest that P. multiseries evaluates predation risk and increases cDA production as a defensive strategy against potential grazing threats. No morphological changes were observed in P. multiseries in response to Lepidodinium sp. or its cues. P. multiseries cultured in flasks of Group L+P-P showed a decrease in growth, but Group L-P and Group L+R-P did not exhibit any decrease. These results suggest a lack of consistent trade-offs between the defense response and growth, thus an increase in cDA production may be a sustainable and efficient defense strategy for P. multiseries. Furthermore, our findings indicate that P. multiseries had no significant impact on the fitness (cell size, growth and/or grazing) of Lepidodinium sp. and R. salina, which suggests no evident toxic or allelopathic impacts on these two phytoplankton species. This study enhances our understanding of the trophic interactions between toxic diatoms and mixotrophic dinoflagellates and helps elucidate the dynamics of Harmful Algal Blooms, toxin transmission, and their impact on ecosystem health.
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Affiliation(s)
- Shuwen Zhang
- Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, South China Normal University, Guangzhou 510631, PR China
| | - Tingting Zheng
- Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, South China Normal University, Guangzhou 510631, PR China
| | - Muyao Zhou
- Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, South China Normal University, Guangzhou 510631, PR China
| | - Biaobiao Niu
- Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, South China Normal University, Guangzhou 510631, PR China
| | - Yang Li
- Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, South China Normal University, Guangzhou 510631, PR China.
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Gogoi P, Das SK, Jana C, Das BK, Saha A, Ramteke K, Jaiswar AK, Samanta S, Roshith CM. Assessing the trophic status of a tropical microtidal estuary applying TRIX and Random Forest - A combined approach. Mar Pollut Bull 2024; 200:116126. [PMID: 38330813 DOI: 10.1016/j.marpolbul.2024.116126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/10/2024]
Abstract
The present study assessed the trophic status of a medium-sized microtidal estuary, Rushikulya, India using a combination of mutimetric trophic indices (TRIX, TRBIX) and a machine learning approach (Random Forest). A total of 108 samples were considered to build a predictive model for chlorophyll a (Chl a) and 17 response water variables by observing two annual periods (2021-2023) at six sampling sites. Mean values of TRIX (5.04 ± 0.72) and TRBIX (0.17 ± 0.08) reflected that the estuary has a moderate degree of eutrophication with 'good' water quality and 'biomass saturated'. However, the threshold of TRIX represents a transition state from 'moderate' to 'high' eutrophic. Random Forest model reflected that no apparent association between Chl a and water turbidity above 30 NTU and eutrophication in the estuary fluctuated mainly due to PO43--P along with electrical conductivity. Linear statistical correlations showed high correlation between Chl a and conductivity and a negative correlation between Chl a and dissolved oxygen, unlike PO43--P.
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Affiliation(s)
- Pranab Gogoi
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700120, India
| | - Sanjoy Kumar Das
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700120, India
| | - Chayna Jana
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700120, India
| | - Basanta Kumar Das
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700120, India.
| | - Ajoy Saha
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700120, India
| | - Karankumar Ramteke
- ICAR-Central Institute of Fisheries Education, Versova, Mumbai 400061, Maharastra, India
| | - A K Jaiswar
- ICAR-Central Institute of Fisheries Education, Versova, Mumbai 400061, Maharastra, India
| | - S Samanta
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700120, India
| | - C M Roshith
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700120, India
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7
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Hua T, He L, Jiang Q, Chou LM, Xu Z, Yao Y, Ye G. Spatio-temporal coupling analysis and tipping points detection of China's coastal integrated land-human activity-ocean system. Sci Total Environ 2024; 914:169981. [PMID: 38215845 DOI: 10.1016/j.scitotenv.2024.169981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 12/10/2023] [Accepted: 01/05/2024] [Indexed: 01/14/2024]
Abstract
The coastal zone is typically highly developed and its ocean environment is vastly exposed to the onshore activities. Land-based pollution, as the "metabolite" of terrestrial human activities, significantly impacts the ocean environment. Although numerous studies have investigated these effects, few have quantified the interactions among land-human activity-ocean across both spatial and temporal scales. In this study, we have developed a land-human activity-ocean systemic framework integrating the coupling coordination degree model and tipping point to quantify the spatiotemporal dynamic interaction mechanism among the land-based pollution, human activities, and ocean environment in China from 2001 to 2020. Our findings revealed that the overall coupling coordination degree of the China's coastal zone increased by 36.9 % over last two decades. Furthermore, the effect of human activities on China's coastal environment remained within acceptable thresholds, as no universal tipping points for coastal pollution or ocean environment has been found over the 20-year period. Notably, the lag time for algal blooms, the key indicator of ocean environment health, was found to be 0-3 years in response to the land economic development and 0-4 years in response to land-based pollution. Based on the differences in spatiotemporal interactions among land-human activity-ocean system, we employed cluster analysis to categorize China's coastal provinces into four types and to develop appropriate management measures. Quantifying the interaction mechanism within the land-human activity-ocean system could aid decision-makers in creating sustainable coastal development strategies. This enables efficient use of land and ocean resources, supports coastal conservation and restoration efforts, and fosters effective management recommendations to enhance coastal sustainability and resilience.
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Affiliation(s)
- Tianran Hua
- Ocean College, Zhejiang University, Zhoushan, Zhejiang, China; Hainan Institute of Zhejiang University, Sanya, Hainan, China
| | - Liuyue He
- Ocean College, Zhejiang University, Zhoushan, Zhejiang, China; Donghai Laboratory, Zhoushan, Zhejiang, China
| | - Qutu Jiang
- Department of Geography, The University of Hong Kong, Hong Kong
| | | | - Zhenci Xu
- Department of Geography, The University of Hong Kong, Hong Kong
| | - Yanming Yao
- Ocean College, Zhejiang University, Zhoushan, Zhejiang, China
| | - Guanqiong Ye
- Ocean College, Zhejiang University, Zhoushan, Zhejiang, China; Hainan Institute of Zhejiang University, Sanya, Hainan, China; Second Institute of Oceanography of MNR, Hanghou, Zhejiang, China.
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8
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Das M, Inácio M, Das A, Barcelo D, Pereira P. Mapping and assessment of ecosystem health in the Vilnius functional zone (Lithuania). Sci Total Environ 2024; 912:168891. [PMID: 38042183 DOI: 10.1016/j.scitotenv.2023.168891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/23/2023] [Accepted: 11/23/2023] [Indexed: 12/04/2023]
Abstract
Urban expansion is a global phenomenon that impacts biodiversity loss and climate change. Soil sealing increases land degradation and the ecosystem services supply. This degradation also negatively affects ecosystem health, essential to make cities more sustainable and liveable. This work aims to study the ecosystem health spatiotemporal evolution (1990, 2000, 2006, 2012 and 2018) in the Vilnius (Lithuania) functional zone, using the vigour, organisation and resilience (VOR) method. The results showed that ecosystem health model validation was acceptable (r = -0.761; p < 0.01). Between 1990 and 2018, an increase (18.37 %) in ecosystem vigour was observed. The values were significantly higher in 2006, 2012 and 2018 than in 1990 and 2000. We identified a decrease between 1990 and 2018 regarding ecosystem organisation (7.15 %) and resilience (9.92 %). However, no significant differences between the years were identified. Ecosystem health decreased (11.49 %) between 1990 and 2018, mainly between 2012 and 2018. Ecosystem health values in 2018 were significantly lower than those identified in the previous years. The lowest values of ecosystem vigour, organisation and resilience were identified in the Vilnius city centre, while the highest was observed in the Vilnius functional zone. From 1990 to 2018, ecosystem vigour increased in some elderships located on the fringe of the studied area due to land abandonment and forest plantations. Simultaneously, a decrease in ecosystem organisation and resilience in the elderships located in Vilnius city centre was observed due to urban sprawl and the consequent landscape fragmentation. This negatively impacted ecosystem health, overshadowing the positive trend observed in ecosystem vigour. Different processes (e.g., urban sprawl, land abandonment, forest plantations) occurred in the Vilnius functional zone. It is essential to halt urban expansion and its adverse impacts on ecosystem health, city sustainability and liveability.
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Affiliation(s)
- Manob Das
- Environmental Management Center, Mykolas Romeris University, Ateities g. 20, LT-08303 Vilnius, Lithuania; Department of Geography, University of Gour Banga, Malda, West Bengal, India
| | - Miguel Inácio
- Environmental Management Center, Mykolas Romeris University, Ateities g. 20, LT-08303 Vilnius, Lithuania
| | - Arijit Das
- Department of Geography, University of Gour Banga, Malda, West Bengal, India
| | - Damia Barcelo
- Water and Soil Quality Research Group, Institute of Environmental Assessment and Water Research (IDAEA), Barcelona, Spain
| | - Paulo Pereira
- Environmental Management Center, Mykolas Romeris University, Ateities g. 20, LT-08303 Vilnius, Lithuania.
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Saha A, Das BK, Sarkar DJ, Samanta S, Vijaykumar ME, Khan MF, Kayal T, Jana C, Kumar V, Gogoi P, Chowdhury AR. Trace metals and pesticides in water-sediment and associated pollution load indicators of Netravathi-Gurupur estuary, India: Implications on coastal pollution. Mar Pollut Bull 2024; 199:115950. [PMID: 38183833 DOI: 10.1016/j.marpolbul.2023.115950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/15/2023] [Accepted: 12/15/2023] [Indexed: 01/08/2024]
Abstract
Various environmental indicators were used to evaluate the water and sediment quality of the Netravathi-Gurupur estuary, India, for trace metals and pesticide pollution. The descended order of studied metal concentrations (μg/L) in the water was Fe (592.71) > Mn (98.35) > Zn (54.69) > Cu (6.64) > Cd (3.24) > Pb (2.38) > Cr (0.82) and in sediment (mg/kg) was Fe (11,396.53) > Mn (100.61) > Cr (75.41) > Zn (20.04) > Cu (12.77) > Pb (3.46) > Cd (0.02). However, pesticide residues were not detected in this estuarine environment. The various metal indexes categorised the water as uncontaminated, whereas contamination factor, enrichment factor, geo-accumulation index, degree of contamination and pollution load index indicated low to moderate sediment contamination. Multivariate statistics showed that the dominance of natural sources of trace metals with little anthropogenic impact. Improvement in water/sediment quality during the study period might be due to COVID-19 imposed lockdown.
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Affiliation(s)
- Ajoy Saha
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, India.
| | - B K Das
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, India
| | - D J Sarkar
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, India
| | - S Samanta
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, India
| | - M E Vijaykumar
- Regional Centre of ICAR-Central Inland Fisheries Research Institute, Bangalore 560 089, India
| | - M Feroz Khan
- Regional Centre of ICAR-Central Inland Fisheries Research Institute, Bangalore 560 089, India
| | - Tania Kayal
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, India
| | - Chayna Jana
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, India
| | - Vikas Kumar
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, India
| | - Pranab Gogoi
- ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700 120, India
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Oduor NA, Munga CN, Imbayi LK, Botwe PK, Nyanjong EO, Muthama CM, Mise NA, Moosdorf N. Anthropogenic nutrients and phytoplankton diversity in Kenya's coastal waters: An ecological quality assessment of sea turtle foraging sites. Mar Pollut Bull 2024; 199:115897. [PMID: 38128251 DOI: 10.1016/j.marpolbul.2023.115897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/14/2023] [Accepted: 12/02/2023] [Indexed: 12/23/2023]
Abstract
We assessed ecological quality status (EQS) of coastal waters following claims of increasing sea turtle fibro-papillomatosis (FP) infections in Kenya, a disease hypothesized to be associated with 'poor' ecological health. We established widespread phosphate (P) and silicate (Si) limitation, dissolved ammonium contamination and an increase in potential harmful algal blooming species. Variations in the EQS was established in the sites depending on the indicators used and seasons. Generally, more sites located near hotels, tidal creeks, and estuarine areas showed 'poor', and 'bad' EQS during rainy period compared to dry season. Additionally, 90.1 % of the sites in 'poor' and 'bad' EQS based on dissolved inorganic nitrogen. Low dissolved oxygen, elevated temperature, salinity and ammonium, 'poor' EQS based on DIN, and potential bio-toxin-producing phytoplankton species characterized the FP prevalent areas, specifically during the dry season suggesting environmental stress pointing to the hypothesized connection between ecological and sea turtle health.
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Affiliation(s)
- Nancy A Oduor
- Leibniz Centre for Tropical Marine Research (ZMT), Fahrenheitstrasse 6, 28359 Bremen, Germany; Eracoma Ltd, P.O. Box 48664, Nairobi, Kenya; Faculty of Mathematics and Natural Sciences, Kiel University (CAU), Germany.
| | - Cosmas N Munga
- Department of Environment and Health Sciences, Marine and Fisheries Programme, Technical University of Mombasa (TUM), P.O. Box 90420, 80100 Mombasa, Kenya
| | - Linet K Imbayi
- Department of Oceanography and Hydrography, Kenya Marine and Fisheries Research Institute (KMFRI), P.O. Box 81651, 80100 Mombasa, Kenya
| | - Paul K Botwe
- Leibniz Centre for Tropical Marine Research (ZMT), Fahrenheitstrasse 6, 28359 Bremen, Germany; Department of Biological, Environmental, and Occupational Health Sciences, School of Public Health, University of Ghana, P.O. Box L.G. 13, Accra, Ghana
| | - Ezekiel O Nyanjong
- Department of Oceanography and Hydrography, Kenya Marine and Fisheries Research Institute (KMFRI), P.O. Box 81651, 80100 Mombasa, Kenya
| | - Charles M Muthama
- Department of Oceanography and Hydrography, Kenya Marine and Fisheries Research Institute (KMFRI), P.O. Box 81651, 80100 Mombasa, Kenya
| | | | - Nils Moosdorf
- Leibniz Centre for Tropical Marine Research (ZMT), Fahrenheitstrasse 6, 28359 Bremen, Germany; Faculty of Mathematics and Natural Sciences, Kiel University (CAU), Germany
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11
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Vargas-Villalobos S, Hernández F, Fabregat-Safont D, Salas-González D, Quesada-Alvarado F, Botero-Coy AM, Esperón F, Martín-Maldonado B, Monrós-Gonzalez J, Ruepert C, Estrada-König S, Rivera-Castillo J, Chaverri-Fonseca F, Blanco-Peña K. A case study on pharmaceutical residues and antimicrobial resistance genes in Costa Rican rivers: A possible route of contamination for feline and other species. Environ Res 2024; 242:117665. [PMID: 37993051 DOI: 10.1016/j.envres.2023.117665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/08/2023] [Accepted: 11/12/2023] [Indexed: 11/24/2023]
Abstract
In this investigation, the presence of antibiotics and pharmaceuticals in Costa Rican surface waters, specifically in regions near feline habitats, was examined. The study revealed that 47% of the water samples contained detectable traces of at least one antibiotic. Ciprofloxacin and norfloxacin were the most frequently detected compounds, each with a detection rate of 27%. Other antibiotics, such as erythromycin, roxithromycin, and trimethoprim, were also found but at lower frequencies, around 14%. Notably, all antibiotic concentrations remained below 10 ng/L, with ciprofloxacin, norfloxacin, and erythromycin showing the highest concentrations. Furthermore, the investigation revealed the presence of non-antibiotic pharmaceutical residues in the water samples, typically at concentrations below 64 ng/L. Tramadol was the most frequently detected compound, present in 18% of the samples. The highest concentrations were observed for acetaminophen and tramadol, measuring 64 and 10 ng/L, respectively. Comparing these findings with studies conducted in treated wastewater and urban rivers, it became evident that the concentrations of antibiotics and pharmaceuticals were notably lower in this study. While previous research reported higher values, the limited number of studies conducted in protected areas raises concerns about the potential environmental impact on biodiversity. In summary, these results emphasize the importance of monitoring pharmaceutical residues and antimicrobial resistance genes ARGs in vulnerable ecosystems, especially those in close proximity to feline habitats in Costa Rica. Additionally, the study delved into the detection of (ARGs). All tested water samples were positive for at least one ARG, with the blaTEM gene being the most prevalent at 82%, followed by tetS at 64% and qnrB at 23%. Moreover, this research shed light on the complexity of evaluating ARGs in environmental samples, as their presence does not necessarily indicate their expression. It also highlighted the potential for co-selection and co-regulation of ARGs, showcasing the intricate behaviors of these genes in aquatic environments.
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Affiliation(s)
- Seiling Vargas-Villalobos
- Universidad Nacional, Instituto Regional de Estudios en Sustancias Tóxicas, (IRET), 86-3000, Heredia, Costa Rica; Doctoral Program in Pollution, Toxicology and Environmental Health Universitat de València, España Av. Blasco Ibáñez, 13.46010, Valencia, Spain.
| | - Félix Hernández
- Environmental and Public Health Analytical Chemistry, Research Institute for Pesticides and Water, University Jaume I, Avda. Sos Baynat S/n, 12071, Castelló, Spain
| | - David Fabregat-Safont
- Environmental and Public Health Analytical Chemistry, Research Institute for Pesticides and Water, University Jaume I, Avda. Sos Baynat S/n, 12071, Castelló, Spain; Applied Metabolomics Research Laboratory, IMIM-Hospital Del Mar Medical Research Institute, 88 Doctor Aiguader, 08003, Barcelona, Spain
| | - Denis Salas-González
- Universidad Nacional, Instituto Regional de Estudios en Sustancias Tóxicas, (IRET), 86-3000, Heredia, Costa Rica
| | - Francisco Quesada-Alvarado
- Universidad Nacional, Instituto Regional de Estudios en Sustancias Tóxicas, (IRET), 86-3000, Heredia, Costa Rica
| | - Ana Maria Botero-Coy
- Environmental and Public Health Analytical Chemistry, Research Institute for Pesticides and Water, University Jaume I, Avda. Sos Baynat S/n, 12071, Castelló, Spain
| | - Fernando Esperón
- Veterinary Department, School of Biomedical and Health Sciences, Universidad Europea de Madrid, Spain
| | - Bárbara Martín-Maldonado
- Veterinary Department, School of Biomedical and Health Sciences, Universidad Europea de Madrid, Spain
| | - Juan Monrós-Gonzalez
- Institut "Cavanilles" de Biodiversitat I Biologia Evolutiva Universitat de València, Spain
| | - Clemens Ruepert
- Universidad Nacional, Instituto Regional de Estudios en Sustancias Tóxicas, (IRET), 86-3000, Heredia, Costa Rica
| | - Sandra Estrada-König
- Universidad Nacional. Escuela de Medicina Veterinaria, 86-3000, Heredia, Costa Rica
| | | | - Fabio Chaverri-Fonseca
- Universidad Nacional, Instituto Regional de Estudios en Sustancias Tóxicas, (IRET), 86-3000, Heredia, Costa Rica
| | - Kinndle Blanco-Peña
- Universidad Nacional, Instituto Regional de Estudios en Sustancias Tóxicas, (IRET), 86-3000, Heredia, Costa Rica
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12
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Li Y, Deng M, Fang G, Lu Y, Sun C, Zhu Z. Ecosystem health evaluation based on land use change-case study of the riparian zone of the Yangtze River in Jiangsu Province, China. Environ Monit Assess 2024; 196:206. [PMID: 38279061 DOI: 10.1007/s10661-024-12358-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 01/15/2024] [Indexed: 01/28/2024]
Abstract
Evaluating the ecosystem health of riparian zones is helpful for decision-makers to formulate appropriate management measures. However, there are few methods for such evaluation which account for both the human requirements and ecological aspects of riparian zones. To address this, we created a Pressure-State(Vigor-Organization-Resilience)-Response framework for evaluating the ecosystem health of the riparian zone of the Yangtze River in Jiangsu Province, a region experiencing intense land use changes. Evaluation indicators, including land use change and ecosystem services, were selected. The comprehensive index method was used to calculate the evaluation indicators of ecosystem health, namely pressure, state, and response, and the comprehensive evaluation indicator itself. Using the cold and hot spot analysis, we also analyzed the spatial heterogeneity of ecosystem health in the riparian zone, constructed an ecological management pattern, and proposed corresponding management and protection measures. The results show that (1) from 2010 to 2020, construction land in the study area increased by more than 20%, and all studied land types underwent some degree of conversion to construction land, with cultivated land and water bodies being the main focus of conversion. (2) In 2020, the average ecosystem health in the riparian zone was normal, with a spatial distribution characterized by "high dispersion and low clustering"; and (3) according to the results of the ecosystem health evaluation and cold and hot spot analysis, key areas for stronger ecological protection were identified and, based on this, a number of management recommendations were proposed.
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Affiliation(s)
- Yan Li
- College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, China
| | - Mingjiang Deng
- College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, China
- Xinjiang Association for Science and Technology, Urumqi, 830000, China
| | - Guohua Fang
- College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, China.
| | - Yangyang Lu
- College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, China
| | - Changran Sun
- College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, China
| | - Zihan Zhu
- College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210098, China
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13
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Coll M, Bellido JM, Pennino MG, Albo-Puigserver M, Báez JC, Christensen V, Corrales X, Fernández-Corredor E, Giménez J, Julià L, Lloret-Lloret E, Macias D, Ouled-Cheikh J, Ramírez F, Sbragaglia V, Steenbeek J. Retrospective analysis of the pelagic ecosystem of the Western Mediterranean Sea: Drivers, changes and effects. Sci Total Environ 2024; 907:167790. [PMID: 37871814 DOI: 10.1016/j.scitotenv.2023.167790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/29/2023] [Accepted: 10/10/2023] [Indexed: 10/25/2023]
Abstract
In the Western Mediterranean Sea, forage fishes have changed in abundance, body condition, growth, reproduction, and distribution in the last decades. Different hypotheses have been proposed to explain these changes, including increase in fishing mortality; changes in environmental conditions affecting species fitness, and planktonic productivity and quality; recovery of top predators; and increase in competitors. We investigated the main drivers and changes of the pelagic ecosystem and their effects using an ecosystem-based modelling approach. Specifically, we (1) quantified the potential historical contribution of various drivers of change, (2) investigated changes in temporal trends and spatial distributions of main ecosystem components, and (3) identified ecological consequences of these changes in top predator and competitors, their fisheries and ecosystem traits during 2000-2020. We updated an established Ecopath food-web model representing the Spanish and French Mediterranean sub-areas (GSA06 and GSA07) in 2000 with recent available data. We applied the temporal dynamic Ecosim module, and tested historical time series of fishing effort, fishing mortality and environmental factors as potential drivers. Observed biomass and landings of key species were used to validate model projections. A spatial-temporal Ecospace model was developed to project species distribution changes. Results showed historical biomass and catch changes driven by a combination of high fishing pressure and environmental change (i.e. increase in temperature and salinity, and decline in primary productivity). Small pelagic fish showed significant temporal changes and predicted shifts in their distributions, following a latitudinal gradient. Predators and competitors showed changes as well, displaying heterogeneous spatial patterns, while fisheries landings declined. Overall, results matched observations (e.g., decline of sardine, fluctuations of anchovy and increases in bluefin tuna) and illustrated the need to complement traditional assessments with integrative frameworks to move towards an ecosystem-based approach in the Mediterranean. They also highlighted important knowledge gaps to guide future research in the region.
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Affiliation(s)
- Marta Coll
- Institute of Marine Sciences (ICM-CSIC), Barcelona, Spain; Ecopath International Initiative (EII), Barcelona, Spain.
| | - José María Bellido
- Spanish Institute of Oceanography (IEO-CSIC, CO Baleares, CO Málaga, CO Murcia y CO Vigo), Spain
| | - Maria Grazia Pennino
- Spanish Institute of Oceanography (IEO-CSIC, CO Baleares, CO Málaga, CO Murcia y CO Vigo), Spain
| | - Marta Albo-Puigserver
- Spanish Institute of Oceanography (IEO-CSIC, CO Baleares, CO Málaga, CO Murcia y CO Vigo), Spain
| | - José Carlos Báez
- Spanish Institute of Oceanography (IEO-CSIC, CO Baleares, CO Málaga, CO Murcia y CO Vigo), Spain.; Instituto Iberoamericano de Desarrollo Sostenible (IIDS), Universidad Autónoma de Chile, Av. Alemania 1090. Temuco 4810101, Región de la Araucanía, Chile
| | - Villy Christensen
- Ecopath International Initiative (EII), Barcelona, Spain; Institute for the Oceans and Fisheries, The University of British Columbia, Vancouver, Canada
| | - Xavier Corrales
- AZTI, Marine Research Division, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain
| | | | - Joan Giménez
- Institute of Marine Sciences (ICM-CSIC), Barcelona, Spain
| | - Laura Julià
- Institute of Marine Sciences (ICM-CSIC), Barcelona, Spain
| | | | - Diego Macias
- European Commission, Joint Research Centre (JRC), Directorate D - Sustainable Resources, Ispra, Italy
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14
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Kazmi SSUH, Saqib HSA, Pastorino P, Grossart HP, Yaseen ZM, Abualreesh MH, Liu W, Wang Z. Influence of the antibiotic nitrofurazone on community dynamics of marine periphytic ciliates: Evidence from community-based bioassays. Sci Total Environ 2023; 904:166687. [PMID: 37659544 DOI: 10.1016/j.scitotenv.2023.166687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/28/2023] [Accepted: 08/28/2023] [Indexed: 09/04/2023]
Abstract
Marine periphytic ciliates play a pivotal role in shaping coastal ecosystems dynamics, thereby acting as robust biological indicators of aquatic ecosystem health and functionality. However, the understanding of the effects of veterinary antibiotics on composition and structure of periphytic ciliate communities remains limited. Therefore, this research investigates the influence of the veterinary antibiotic nitrofurazone on the community dynamics of marine periphytic ciliates through bioassay experiments conducted over a one-year cycle. Various concentrations of nitrofurazone were administered to the tested ciliate assemblages, and subsequent changes in community composition, abundance, and diversity were quantitatively analyzed. The research revealed significant alterations in periphytic ciliate communities following exposure to nitrofurazone. Concentration-dependent (0-8 mg L-1) decrease in ciliates abundance, accompanied by shifts in species composition, community structure, and community patterns were observed. Comprehensive assessment of diversity metrics indicated significant changes in species richness and evenness in the presence of nitrofurazone, potentially disrupting the stability of ciliate communities. Furthermore, nitrofurazone significantly influenced the community structure of ciliates in all seasons (winter: R2 = 0.489; spring: R2 = 0.666; summer: R2 = 0.700, autumn: R2 = 0.450), with high toxic potential in treatments 4 and 8 mg L-1. Differential abundances of ciliates varied across seasons and nitrofurazone treatments, some orders like Pleurostomatida were consistently affected, while others (i.e., Strombidida and Philasterida) showed irregular distributions or were evenly affected (e.g., Urostylida and Synhymeniida). Retrieved contrasting patterns between nitrofurazone and community responses underscore the broad response repertoire exhibited by ciliates to antibiotic exposure, suggesting potential cascading effects on associated ecological processes in the periphyton community. These findings significantly enhance the understanding of the ecological impacts of nitrofurazone on marine periphytic ciliate communities, emphasizing the imperative for vigilant monitoring and regulation of veterinary antibiotics to protect marine ecosystem health and biodiversity. Further research is required to explore the long-term effects of nitrofurazone exposure and evaluate potential strategies to reduce the ecological repercussions of antibiotics in aquatic environments, with a particular focus on nitrofurazone.
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Affiliation(s)
- Syed Shabi Ul Hassan Kazmi
- Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention, and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China; Biochemistry and Biological Engineering Research Group, Scientific Research Center, Al-Ayen University, Thi-Qar, Nasiriyah 64001, Iraq.
| | - Hafiz Sohaib Ahmed Saqib
- Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention, and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Paolo Pastorino
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, 10154 Torino, Italy
| | - Hans-Peter Grossart
- Plankton and Microbial Ecology, Leibniz Institute for Freshwater Ecology and Inland Fisheries, (IGB), Alte Fischerhuette 2, Neuglobsow 16775, Germany; Institute of Biochemistry and Biology, University of Potsdam, Maulbeerallee 2, Potsdam 14469, Germany
| | - Zaher Mundher Yaseen
- Civil and Environmental Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia; Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - Muyassar H Abualreesh
- Department of Marine Biology, Faculty of Marine Sciences, King Abdulaziz University, Jeddah 22254, Saudi Arabia
| | - Wenhua Liu
- Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention, and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Zhen Wang
- Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention, and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China.
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15
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Li W, Kang J, Wang Y. Distinguishing the relative contributions of landscape composition and configuration change on ecosystem health from a geospatial perspective. Sci Total Environ 2023; 894:165002. [PMID: 37348718 DOI: 10.1016/j.scitotenv.2023.165002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 06/12/2023] [Accepted: 06/17/2023] [Indexed: 06/24/2023]
Abstract
Understanding the impact mechanisms of landscape composition and configuration change on ecosystem health (EH) is critical to ecosystem conservation and human well-being. However, existing studies mainly focused on EH changes due to combined effects of landscape composition and configuration change, while the individual impacts and spatial heterogeneity of these factors on EH remain unclear. Thus, taking Chongqing as an example, this study distinguished the relative contributions of landscape configuration and composition on EH based on scenario analysis method, and further explored how these impacts change between and within different topographic, geological and urbanization zones. The results showed that EH displayed an improving trend during 2000-2020, with the increasing areas distributed in the mountainous of southeast and northeast in Chongqing, largely influenced by increased forest landscape cohesion and their synergistic effects with forest expansion, accounting for 91.05 % and 87.86 % of the study area respectively, while the decreasing areas were mostly located in urban cores, dominated by changes in landscape composition (e.g. farmland reclamation and urban sprawl), accounting for 50.95 % of area proportion. The scenario analysis of EH showed that the areas dominated by landscape configuration were 5.39 times greater than the landscape composition under the same climate scenario. In terms of zoning comparison, the influence of landscape composition change on EH displayed the greatest difference within urbanization zones, while topographic zones for landscape configuration change. This paper provides a novel perspective to explore the impact of landscape pattern on EH, which is important to regional ecosystem conservation and land use management.
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Affiliation(s)
- Weijie Li
- School of Geographical Sciences, China West Normal University, Nanchong 637009, China; Sichuan Provincial Engineering Laboratory of Monitoring and Control for Soil Erosion in Dry Valleys, China West Normal University, Nanchong 637009, China
| | - Jinwen Kang
- School of Geographical Sciences, China West Normal University, Nanchong 637009, China.
| | - Yong Wang
- Chongqing Key Laboratory of Karst Environment, School of Geographical Sciences, Southwest university, Chongqing 400715, China
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Ge Y, Gu X, Zeng Q, Mao Z, Chen H, Yang H. Development and testing of a planktonic index of biotic integrity (P-IBI) for Lake Fuxian, China. Environ Sci Pollut Res Int 2023; 30:105873-105884. [PMID: 37723388 DOI: 10.1007/s11356-023-29818-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 09/06/2023] [Indexed: 09/20/2023]
Abstract
Lake Fuxian has the largest reserves of high-quality water resources in China, and understanding its ecological health status is the basis of its environmental protection. Based on a seasonal field investigation of the plankton community, we established a planktonic index of biotic integrity (P-IBI) evaluation system to assess the lake's ecosystem health. The biological integrity of Lake Fuxian was relatively good during winter and spring, but gradually deteriorated from summer to autumn. Areas with poor biological integrity were mainly distributed near tourist attractions along the lake's west coast. Redundancy analysis (RDA) was performed to explore the relationships between the P-IBI, its selected indicators, and the environmental variables. Water temperature (WT), pH, ammonia nitrogen (NH3-N), and dissolved oxygen (DO) significantly influenced the P-IBI and its selected indicators. NH3-N and DO were significantly positively correlated with the P-IBI, indicating that it could be used as a water quality indicator to indirectly reflect lake biological integrity. We demonstrated that the P-IBI can effectively reflect temporal and spatial variations of biological integrity and could be used as a potential tool to evaluate Lake Fuxian ecosystem health.
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Affiliation(s)
- You Ge
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaohong Gu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China.
| | - Qingfei Zeng
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Zhigang Mao
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Huihui Chen
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Huiting Yang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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17
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Fujibayashi M, Nitta M, Aomori S, Sakamaki T, Okano K, Sugiyama H, Miyata N. Exploring the use of fish as indicators of eicosapentaenoic and docosahexaenoic supply in lake ecosystems. Oecologia 2023; 202:743-755. [PMID: 37568056 DOI: 10.1007/s00442-023-05433-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 08/03/2023] [Indexed: 08/13/2023]
Abstract
An adequate supply of food sources with high levels (i.e., weight proportion of total fatty acids) and contents (i.e., absolute amount per mass) of long chain polyunsaturated fatty acids such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are important for ecosystems. Therefore, the supply of EPA and DHA from basal food sources is a useful indicator of ecosystem health. To determine whether EPA and DHA levels and contents in fish can be used as indicators of EPA and DHA supply in lakes, five dominant species of fish and basal food sources (seston and sediment) were collected monthly from June to November from 2016 to 2021 from Lake Hachiro, Japan. Seston and Hypomesus nipponensis were collected from 12 lakes (one collection per lake) with varying seston contents in EPA and DHA. The trends of EPA and DHA in all fish species were similar to those of the basal food sources. Correlation analysis showed that the EPA levels were strongly correlated between fish and seston; moreover, the correlation coefficient increased when a 1- or 2-month moving average was applied to the basal food sources, suggesting that fish represent a time-integrated supply of EPA and DHA. EPA levels of H. nipponensis had the highest correlation coefficients with seston among all fish species. EPA levels of H. nipponensis were significantly correlated with those of seston among lakes. The results of this study suggest that H. nipponensis is a useful indicator of EPA and DHA supplies in lake ecosystems.
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Affiliation(s)
- Megumu Fujibayashi
- Faculty of Engineering, Kyushu University, 774, Motooka, Nishi-Ku, Fukuoka, 819-0395, Japan.
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438, Kaido-Bata Nishi, Shimoshinjo-Nakano, Akita, 010-0195, Japan.
| | - Mayumi Nitta
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438, Kaido-Bata Nishi, Shimoshinjo-Nakano, Akita, 010-0195, Japan
| | - Sota Aomori
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438, Kaido-Bata Nishi, Shimoshinjo-Nakano, Akita, 010-0195, Japan
| | - Takashi Sakamaki
- School of Engineering, Tohoku University, 6-6-06, Aramaki-Aoba, Aoba, Sendai, Miyagi, 980-8579, Japan
| | - Kunihiro Okano
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438, Kaido-Bata Nishi, Shimoshinjo-Nakano, Akita, 010-0195, Japan
| | - Hideki Sugiyama
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438, Kaido-Bata Nishi, Shimoshinjo-Nakano, Akita, 010-0195, Japan
| | - Naoyuki Miyata
- Faculty of Bioresource Sciences, Akita Prefectural University, 241-438, Kaido-Bata Nishi, Shimoshinjo-Nakano, Akita, 010-0195, Japan
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18
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Ashraf A, Haroon MA, Ahmad S, Abowarda AS, Wei C, Liu X. Use of remote sensing-based pressure-state-response framework for the spatial ecosystem health assessment in Langfang, China. Environ Sci Pollut Res Int 2023; 30:89395-89414. [PMID: 37452253 DOI: 10.1007/s11356-023-28674-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 07/03/2023] [Indexed: 07/18/2023]
Abstract
Land use/land cover changes are occurring at an unprecedented rate and scale because of the economic development that has jeopardized the ecosystem's health. Ecosystem health should be studied and monitored at spatiotemporal scale to promote sustainable development and ecological civilization. The goal of this study was to assess the spatial ecosystem health of Langfang at the city and administrative levels using city's regional characteristics. Remote sensing-based pressure-state-response (PSR) framework, analytical hierarchy process (AHP), and principal component analysis (PCA) were utilized for spatial ecosystem health index (SEHI) formulation, indicator weighting, and indicator selection in several epochs (1990, 2003, 2013, and 2021), respectively. SEHI was formulated by combining subindices of pressure, state and response. The spatial ecosystem pressure index (SEIP) identified that the pressure was increasing on the ecosystem. In contrast, the spatial ecosystem state index (SEIS) pointed out an improvement in the state of the ecosystem since 1990. The worst state of the ecosystem was observed for the year 2013. The spatial ecosystem response index (SEIR) indicated that the response of the ecosystem towards the exerted pressures and states remained variable; however, it was reasonably good in 1990. All the administrative units of Langfang were associated with a healthy score for the spatial ecosystem health index (SEHI) for 1990 (pre-industrialization epoch), while the SEHI significantly reduced in 2013 (industrialization epoch) however improved for the later epochs (circular economy and ecological civilization epoch). The SEHI was moderately healthy for Dachang, Dacheng, Guan, Guangyang, and Yongqing while relatively healthy for the remaining administrative units in 2021. SEHI identified that spatial health has been improving since 2003 though not reaching the 1990's level for Langfang. Therefore, efforts should be focused on minimizing pressure and stabilizing the state to improve the spatial ecosystem health of Langfang. The developed SEHI can assist policymakers in analyzing regional health, identifying development strategies, driving environmental restoration, and quantifying needed changes.
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Affiliation(s)
- Anam Ashraf
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Muhammad Athar Haroon
- Pakistan Meteorological Department, Institute of Meteorology & Geophysics, Karachi, Pakistan
| | - Shakeel Ahmad
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Ahmed Samir Abowarda
- State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing, 100084, China
| | - Chunyue Wei
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Xuehua Liu
- School of Environment, Tsinghua University, Beijing, 100084, China.
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19
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Zhang X, Gou P, Chen W, Li G, Huang Y, Zhou T, Liu Y, Nie W. Spatiotemporal distribution characteristics of ecosystem health and the synergetic impact of its driving factors in the Yangtze River Delta, China. Environ Sci Pollut Res Int 2023; 30:85184-85197. [PMID: 37380860 DOI: 10.1007/s11356-023-28412-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 06/17/2023] [Indexed: 06/30/2023]
Abstract
In recent years, . the rapid development of the Yangtze River Delta in China has led to increasingly serious regional eco-environmental problems. Therefore, it is of great significance for the construction of ecological civilization to study the ecosystem health in the Yangtze River Delta. In this paper, the assessment framework of "Vigor-Organization-Resilience" was used to assess the ecosystem health index (EHI) of the Yangtze River Delta from 2000 to 2020, and then the spatial autocorrelation method was used to analyze the agglomeration of EHI in 314 counties in this region. Finally, the eXtreme Gradient Boosting (XGBoost) model and the SHapley Additive exPlanation (SHAP) model were combined to explore the synergistic impact of EHI driving factors. The results show that (1) from 2000 to 2020, the EHI in the Yangtze River Delta is at the level of ordinary health, and gradually decreased; (2) the EHI has significant spatial positive correlation and aggregation; (3) the driving factors in descending order of importance are urbanization level (UL), precipitation (PRE), PM2.5 (PM), normalized difference vegetation index (NDVI), and temperature (TEMP); and (4) the relationship between UL and EHI is logarithmic; PRE and EHI are quartic polynomial; PM, NDVI, TEMP, and EHI are quadratic polynomial. The results of this paper are of great significance to the management and restoration of the ecosystem in this region.
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Affiliation(s)
- Xuepeng Zhang
- Nanhu Laboratory, Research Center of Big Data Technology, Jiaxing, 314000, China.
| | - Peng Gou
- Nanhu Laboratory, Research Center of Big Data Technology, Jiaxing, 314000, China
| | - Wei Chen
- College of Geoscience and Surveying Engineering, China University of Mining & Technology, Beijing, 100083, China
| | - Guangchao Li
- College of Geoscience and Surveying Engineering, China University of Mining & Technology, Beijing, 100083, China
| | - Yingshuang Huang
- Nanhu Laboratory, Research Center of Big Data Technology, Jiaxing, 314000, China
| | - Tianyu Zhou
- Nanhu Laboratory, Research Center of Big Data Technology, Jiaxing, 314000, China
| | - Yang Liu
- Nanhu Laboratory, Research Center of Big Data Technology, Jiaxing, 314000, China
| | - Wei Nie
- Nanhu Laboratory, Research Center of Big Data Technology, Jiaxing, 314000, China
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20
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Sandra SM, Sreekanth GB, Ranjeet K. Trophic fingerprinting of a pristine but rapidly deteriorating downstream region of a Western Ghats River. Environ Monit Assess 2023; 195:1008. [PMID: 37523024 DOI: 10.1007/s10661-023-11501-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 06/10/2023] [Indexed: 08/01/2023]
Abstract
Chalakudy River is renowned for its pristine waters and rich ichthyofaunal biodiversity. The downstream area of the river is confronting a series of risks, including pollution, saline water ingression, sand mining, illegal and intensified fishing practices, and invasion of exotic and alien species. A mass balanced ecosystem model was constructed for the downstream region of Chalakudy River (DCR) using Ecopath with Ecosim (EWE), incorporating 12 functional groups to delineate the food web and network flow indices for the period 2020 to 2021. The trophic level (TL) of the ecosystem network ranged from TL-1 (detritus) to TL-3.4 (birds). High fishing pressure is one possible cause for the high ecotrophic efficiency values as evidenced by the fish groups. Both the grazing food chain and detritus food chain (detritivory: herbivory ratio 0.94) contributed more or less equal to the energy transfer between TL. Network analysis of the model indicated a mean transfer efficiency of 12%, with shares from primary producers (14%) and detritus (11%). A mixed trophic impact analysis demonstrated a strong positive impact of primary producers and detritus groups on most of the other ecological groups at higher trophic levels. The DCR model showed a high system throughput (32,464.7 t km-2 year-1), low system omnivory (0.09), low connectance index (0.36), low Finn's cycling index (4.9), and mean path length (2.8), low relative ascendency (37.5%), and high system overhead (62.5%). These indices propound that DCR is an immature and developing ecosystem with moderate strength in reserve to resist external perturbations.
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Affiliation(s)
| | - G B Sreekanth
- ICAR-Central Coastal Agricultural Research Institute, Old Goa, Goa, 403402, India
| | - K Ranjeet
- Kerala University of Fisheries and Ocean Studies, Kochi, 682 506, India.
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21
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Yang L, Chen W, Pan S, Zeng J, Yuan Y, Gu T. Spatial relationship between land urbanization and ecosystem health in the Yangtze River Basin, China. Environ Monit Assess 2023; 195:957. [PMID: 37452972 DOI: 10.1007/s10661-023-11563-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 06/26/2023] [Indexed: 07/18/2023]
Abstract
Globally, land-based urbanization had far-reaching impacts on ecosystem health. Determining the spatial relationship between land urbanization and ecosystem health is important for sustainable socioeconomic development and ecological protection. However, existing studies lack research on these relationships in basin regions, which may limit the implementation of effective basin ecological management measures. Based on multi-source data, this study analyzed the spatiotemporal patterns and spatial correlations of land urbanization rate (LUR) and ecosystem health index (EHI) in the Yangtze River basin (YRB) with a series of spatial analysis methods. The results showed that EHI in the YRB decreased by 0.024 during 2000-2020, with a decreasing range of 3.133 %, while LUR increased by 0.216, with an increasing range of 54.135 %. LUR has a significant negative spatial correlation with EHI, with high EHI and high LUR (9.814% in 2020) and high EHI and low LUR (12.397% in 2020) being the main types of agglomeration. The global regression results showed that LUR significantly negatively affected EHI. At the local scale, the LUR positively affected the EHI in the mountainous region, while the opposite was confirmed in the plain region. This study can provide scientific reference for the development of sustainable urban land control measures and basin ecological management measures.
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Affiliation(s)
- Liyan Yang
- Hubei Key Laboratory of Regional Ecology and Environmental Change, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China
| | - Wanxu Chen
- Hubei Key Laboratory of Regional Ecology and Environmental Change, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China.
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China.
- Key Laboratory of Geospatial Technology for Middle and Lower Yellow River Regions, Henan University, Ministry of Education, Kaifeng, 475004, Henan, China.
| | - Sipei Pan
- College of Land Management, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jie Zeng
- Hubei Key Laboratory of Regional Ecology and Environmental Change, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China
| | - Yanghaoyue Yuan
- Hubei Key Laboratory of Regional Ecology and Environmental Change, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China
| | - Tianci Gu
- Hubei Key Laboratory of Regional Ecology and Environmental Change, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China
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22
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Galbán-Malagón CJ, Zapata J, Perez-Venegas DJ, Vargas R, Latorre-Padilla N, Luarte T, Ahrendt C, Hirmas-Olivares A, Gómez-Aburto V, Tapia P, Isamit V, Arce P, Sánchez C, Pozo K. Occurrence, source estimation, and risk assessment of Polycyclic Aromatic Hydrocarbons in coastal seawaters from the Quintero Industrial Complex (Valparaíso, Chile). Sci Total Environ 2023; 878:162957. [PMID: 36958545 DOI: 10.1016/j.scitotenv.2023.162957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/19/2023] [Accepted: 03/15/2023] [Indexed: 05/13/2023]
Abstract
In the 1960s, the Quintero industrial complex was inaugurated in Chile. This began a history of dramatic anthropogenic impacts on the Chilean coast. Among the known, we could mention high atmospheric emissions of chemicals due to combustion processes and frequent oil spills. For this reason, we surveyed the concentrations of fifteen EPAPAHs in the surface coastal waters of the Quintero Bay area in 2015. The levels found are in the range of the highest levels when reviewing the literature (0.97 μg L-1 up to 9.84 μg L-1). The highest levels were found in the vicinity of the industrial complex and decreased in the other two zones. The concentration of individual compounds significantly exceeds the levels recommended by the EPA (Environmental Protection Agency) and the EU water framework directive (WFD). The risk estimations revealed that PAH concentrations represent high-risk for wildlife. Molecular ratios of PAHs were used to identify the possible sources, being these were mainly of pyrogenic origin, agreeing with an origin in the combustion of wood, coal, grass, and fossil fuels. This study contributes to the first data for surface water in a country's highly impacted industrial coastal area.
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Affiliation(s)
- C J Galbán-Malagón
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile; Anillo en Ciencia y Tecnología Antártica POLARIX, Chile; Institute of Environment, Florida International University, University Park, Miami, FL 33199, USA.
| | - J Zapata
- Centro de Investigación e Innovación para el Cambio Climático, Facultad de Ciencias, Universidad Santo Tomás, Santiago, Chile; Estación Costera de Investigaciones Marinas, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - D J Perez-Venegas
- Centro de Investigación y Gestión de Recursos Naturales (CIGREN), Instituto de Biología, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - R Vargas
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile; Anillo en Ciencia y Tecnología Antártica POLARIX, Chile
| | - N Latorre-Padilla
- Doctorado en Medicina de la Conservación, Facultad de Ciencias de la Vida, Universidada Andrés Bello, Santiago, Chile; Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago 8370251, Chile; Centro de Investigación Marina Quintay (CIMARQ), Facultad de Ciencias de la Vida, Universidad Andrés, Bello, Quintay, Valparaíso 2531015, Chile; Center of Applied Ecology and Sustainability (CAPES), Santiago 8331150, Chile; Instituto Milenio en Socio-Ecología Costera (SECOS), Santiago 8370251, Chile
| | - T Luarte
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile; Anillo en Ciencia y Tecnología Antártica POLARIX, Chile; Doctorado en Medicina de la Conservación, Facultad de Ciencias de la Vida, Universidada Andrés Bello, Santiago, Chile
| | - C Ahrendt
- Fundación Acción Natural, Laguna, Valparaíso, Chile
| | - A Hirmas-Olivares
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile; Anillo en Ciencia y Tecnología Antártica POLARIX, Chile
| | - V Gómez-Aburto
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile; Anillo en Ciencia y Tecnología Antártica POLARIX, Chile
| | - P Tapia
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile
| | - V Isamit
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile
| | - P Arce
- GEMA Center for Genomics, Ecology & Environment, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago, Chile
| | - C Sánchez
- Escuela de Geología, Universidad Mayor, San Pío X 2422, 7510041 Providencia, Región Metropolitana, Chile
| | - K Pozo
- Masaryk University, Research Centre for Toxic Compounds in the Environment (RECETOX), Kamenice 753/5, 62500 Brno, Czech Republic; Universidad San Sebastián, Facultad de Ingeniería, Arquitectura y diseño, Lientur 1457, 4030000 Concepción, Chile.
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23
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Wang T, Qu L, Luo D, Ji X, Ma Z, Wang Z, Dahlgren RA, Zhang M, Shang X. Microplastic pollution characteristics and its future perspectives in the Tibetan Plateau. J Hazard Mater 2023; 457:131711. [PMID: 37257387 DOI: 10.1016/j.jhazmat.2023.131711] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/09/2023] [Accepted: 05/24/2023] [Indexed: 06/02/2023]
Abstract
Microplastics are an emerging and persistent pollutant due to their threat to global ecological systems and human health. Recent studies showed that microplastics have infiltrated the remote Third Pole - the Tibetan Plateau. Here, we summarize the current evidence for microplastic pollution in the different environments (rivers/lakes, sediment, soil, ice/snow and atmosphere) of the Tibetan Plateau. We assess the spatial distribution, source, fate, and potential ecological effects of microplastics in this broad plateau. The integrated results show that microplastics were pervasive in biotic and abiotic components of the Tibetan Plateau, even at the global highest-altitude, Mt. Everest. Although the concentration of microplastics in the Tibetan Plateau was far below that found in the densely populated lowlands, it showed a higher concentration than that in the ocean system. Tourist populations are identified as a substantial source of anthropogenic plastic input rather than local residents due to the rapid development of the tourism industry. In the sparsely inhabited remote area of the Tibetan Plateau, long-range atmospheric transport facilitates allochthonous microplastic diffusion. Robust solar radiation in the Tibetan Plateau might enhanced production of secondary microplastics by weathering (UV-photooxidation) of abandoned plastic waste. A rough estimation showed that the microplastic export flux from melting glaciers was higher than that measured in most of the world's largest rivers, which affects local and downstream areas. Since the Tibetan Plateau is vital for Asian water supply and numerous endangered wildlife, the potential human and ecological risk of microplastics to these fragile ecosystems needs to be fully evaluated within the context of climate-change impacts.
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Affiliation(s)
- Ting Wang
- Zhejiang Provincial Key Laboratory of Watershed Sciences and Health, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China; Institute of Eco-Environmental Sciences, Wenzhou Academy of Agricultural Sciences, Wenzhou 325006, Zhejiang, China
| | - Liyin Qu
- National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 325035, China.
| | - Dehua Luo
- Zhejiang Provincial Key Laboratory of Watershed Sciences and Health, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China
| | - Xiaoliang Ji
- Zhejiang Provincial Key Laboratory of Watershed Sciences and Health, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China
| | - Zengling Ma
- National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Zhejiang Provincial Key Lab for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 325035, China
| | - Zhonggen Wang
- Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Randy A Dahlgren
- Zhejiang Provincial Key Laboratory of Watershed Sciences and Health, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China; Department of Land, Air and Water Resources, University of California, Davis, CA 95616, USA
| | - Minghua Zhang
- Zhejiang Provincial Key Laboratory of Watershed Sciences and Health, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China; Department of Land, Air and Water Resources, University of California, Davis, CA 95616, USA
| | - Xu Shang
- Zhejiang Provincial Key Laboratory of Watershed Sciences and Health, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, China.
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24
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Fang W, Huang Q, Huang G, Ming B, Quan Q, Li P, Guo Y, Zheng X, Feng G, Peng J. Assessment of dynamic drought-induced ecosystem risk: Integrating time-varying hazard frequency, exposure and vulnerability. J Environ Manage 2023; 342:118176. [PMID: 37207461 DOI: 10.1016/j.jenvman.2023.118176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/21/2023] [Accepted: 05/12/2023] [Indexed: 05/21/2023]
Abstract
Terrestrial ecosystems, occupying 28.26% of Earth's surface, are extensively at risk from droughts, which is likely to propagate into human communities owing to loss of vital services. Ecosystem risk also tends to fluctuate within anthropogenically-forced nonstationary environments, raising considerable concerns about effectiveness of mitigation strategies. This study aims to assess dynamic ecosystem risk induced by droughts and identify risk hotspots. Bivariate nonstationary drought frequency was initially derived as a hazard component of risk. By coupling vegetation coverage and biomass quantity, a two-dimensional exposure indicator was developed. Trivariate likelihood of vegetation decline was calculated under arbitrary droughts to intuitively determine ecosystem vulnerability. Ultimately, time-variant drought frequency, exposure and vulnerability were multiplied to derive dynamic ecosystem risk, followed by hotspot and attribution analyses. Risk assessment implemented in the drought-prevalent Pearl River basin (PRB) of China during 1982-2017 showed that meteorological droughts in eastern and western margins, although less frequent, were prolonged and aggravated in contrast to prevalence of less persistent and severe droughts in the middle. In 86.12% of the PRB, ecosystem exposure maintains high levels (0.62). Relatively high vulnerability (>0.5) occurs in water-demanding agroecosystems, exhibiting a northwest-southeast-directed extension. A 0.1-degree risk atlas unveils that high and medium risks occupy 18.96% and 37.99% of the PRB, while risks are magnified in the north. The most pressing hotspots with high risk continuing to escalate reside in the East River and Hongliu River basins. Our results provide knowledge of composition, spatio-temporal variability and driving mechanism of drought-induced ecosystem risk, which will assist in risk-based mitigation prioritization.
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Affiliation(s)
- Wei Fang
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, School of Water Resources and Hydropower, Xi'an University of Technology, Xi'an, China.
| | - Qiang Huang
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, School of Water Resources and Hydropower, Xi'an University of Technology, Xi'an, China
| | - Gordon Huang
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, Canada
| | - Bo Ming
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, School of Water Resources and Hydropower, Xi'an University of Technology, Xi'an, China.
| | - Quan Quan
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, School of Water Resources and Hydropower, Xi'an University of Technology, Xi'an, China.
| | - Pei Li
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, School of Water Resources and Hydropower, Xi'an University of Technology, Xi'an, China
| | - Yi Guo
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, School of Water Resources and Hydropower, Xi'an University of Technology, Xi'an, China
| | - Xudong Zheng
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, School of Water Resources and Hydropower, Xi'an University of Technology, Xi'an, China
| | - Gang Feng
- State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, School of Water Resources and Hydropower, Xi'an University of Technology, Xi'an, China
| | - Jian Peng
- Department of Remote Sensing, Helmholtz Centre for Environmental Research-UFZ, Leipzig, Germany; Remote Sensing Centre for Earth System Research, Leipzig University, Leipzig, Germany
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25
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Na L, Shi Y, Guo L. Quantifying the spatial nonstationary response of influencing factors on ecosystem health based on the geographical weighted regression (GWR) model: an example in Inner Mongolia, China, from 1995 to 2020. Environ Sci Pollut Res Int 2023:10.1007/s11356-023-26915-4. [PMID: 37193792 DOI: 10.1007/s11356-023-26915-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 04/05/2023] [Indexed: 05/18/2023]
Abstract
The identification of ecosystem health and its influencing factors is crucial to the sustainable management of ecosystems and ecosystem restoration. Although numerous studies on ecosystem health have been carried out from different perspectives, few studies have systematically investigated the spatiotemporal heterogeneity between ecosystem health and its influencing factors. Considering this gap, the spatial relationships between ecosystem health and its factors concerning climate, socioeconomic, and natural resource endowment at the county level were estimated based on a geographically weighted regression (GWR) model. The spatiotemporal distribution pattern and driving mechanism of ecosystem health were systematically analysed. The results showed the following: (1) the ecosystem health level in Inner Mongolia spatially increases from northwest to southeast, displaying notable global spatial autocorrelation and local spatial aggregation. (2) The factors influencing ecosystem health exhibit significant spatial heterogeneity. Annual average precipitation (AMP) and biodiversity (BI) are positively correlated with ecosystem health, and annual average temperature (AMT) and land use intensity (LUI) are estimated to be negatively correlated with ecosystem health. (3) Annual average precipitation (AMP) significantly improves ecosystem health, whereas annual average temperature (AMT) significantly worsens eco-health in the eastern and northern regions. LUI negatively impacts ecosystem health in western counties (such as Alxa, Ordos, and Baynnur). This study contributes to extending our understanding of ecosystem health depending on spatial scale and can inform decision-makers about how to control various influencing factors to improve the local ecology under local conditions. Finally, this study also proposes some relevant policy suggestions and provides effective ecosystem preservation and management support in Inner Mongolia.
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Affiliation(s)
- Li Na
- College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China
| | - Yu Shi
- College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Luo Guo
- College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China.
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26
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Yang L, Chen W, Zeng J, Pan S, Zhong Y, Gu T. Regional differences and driving forces of ecosystem health in Yangtze River Basin, China. Environ Sci Pollut Res Int 2023:10.1007/s11356-023-27230-8. [PMID: 37156948 DOI: 10.1007/s11356-023-27230-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/21/2023] [Indexed: 05/10/2023]
Abstract
Ecosystem health in the Yangtze River basin (YRB) shows significant regional differences. Analysis of regional differences and drivers of ecosystem health in YRB is of practical significance for sustainable basin ecological management. However, existing studies lack research on regional differences and driving forces of ecosystem health, especially in big basin regions. Based on multi-source data, this study adopted spatial statistics and distribution dynamics models to quantitatively analyze the regional differences of ecosystem health in the YRB during 2000-2020 and employed the spatial panel model to reveal the driving forces of ecosystem health in the YRB. The ecosystem health index of the upper, middle, and lower reaches of YRB and the entire basin in 2020 was 0.753, 0.781, 0.637, and 0.742, respectively, while they all decreased during 2000-2020. Regional differences in YRB ecosystem health increased during 2000-2020. From the perspective of dynamic evolution, low-level and high-level ecosystem health units evolved to high-level, while medium-high-level ecosystem health units evolved to low-level. High-high (accounting for 30.372% in 2020) and low-low (accounting for 13.533% in 2020) were the main cluster types. Regression result showed that urbanization was the main reason for ecosystem health deterioration. The findings can provide enlightenment to further understand the regional differences of ecosystem health in YRB and provide theoretical reference for the coordinated management of ecosystem at macro-level and the differential regulation of local ecosystem at micro-level in the basin region.
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Affiliation(s)
- Liyan Yang
- Department of Geography, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China
| | - Wanxu Chen
- Department of Geography, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China.
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China.
- Key Laboratory of Geospatial Technology for Middle and Lower Yellow River Regions, Henan University, Ministry of Education, Kaifeng, 475004, Henan, China.
| | - Jie Zeng
- Department of Geography, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China
| | - Sipei Pan
- College of Land Management, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yangyi Zhong
- Department of Geography, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China
| | - Tianci Gu
- Department of Geography, School of Geography and Information Engineering, China University of Geosciences, Wuhan, 430074, China
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Ran C, Bai X, Tan Q, Luo G, Cao Y, Wu L, Chen F, Li C, Luo X, Liu M, Zhang S. Threat of soil formation rate to health of karst ecosystem. Sci Total Environ 2023; 887:163911. [PMID: 37149175 DOI: 10.1016/j.scitotenv.2023.163911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 04/28/2023] [Accepted: 04/29/2023] [Indexed: 05/08/2023]
Abstract
Karst ecosystems are important to several billion people, so it is necessary to accurately diagnose and evaluate the health of these ecosystems for socioeconomic development; however, the existing evaluation methods have many limitations, so they cannot accurately evaluate the ecosystem health in karst areas. In particular, they ignore the influence and restriction of the soil formation rate on the ecosystem health. To this end, we established a new index to represent the actual health status of karst ecosystems. The soil formation rate was found to pose a threat to the health of 28 % of the world's karst ecosystems, covering an area of 594 km2. In addition, a dataset of global karst ecosystem health index values with a spatial resolution of about 8 km × 8 km from 2000 to 2014 was created, and the proportion of unhealthy areas was found to be as high as 75.91 %. This study highlights the contribution of the soil formation rate to karst ecosystem health and provides a new method and deeper scientific understanding for further accurate evaluation of karst ecosystem health, which can improve future ecosystem health research and social management.
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Affiliation(s)
- Chen Ran
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, Guizhou Province, China; University of Chinese Academy of Sciences, Beijing 100049, China; Puding Karst Ecosystem Observation and Research Station, Chinese Academy of Sciences, Puding 562100, Guizhou Province, China
| | - Xiaoyong Bai
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, Guizhou Province, China; CAS Center for Excellence in Quaternary Science and Global Change, Xi'an 710061, Shanxi Province, China; Guizhou Provincial Key Laboratory of Geographic State Monitoring of Watershed, Guizhou Education University, Guiyang 550018, China.
| | - Qiu Tan
- School of Geography and Environmental Sciences, Guizhou Normal University, Guiyang 550001, China
| | - Guangjie Luo
- Guizhou Provincial Key Laboratory of Geographic State Monitoring of Watershed, Guizhou Education University, Guiyang 550018, China
| | - Yue Cao
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, Guizhou Province, China; Puding Karst Ecosystem Observation and Research Station, Chinese Academy of Sciences, Puding 562100, Guizhou Province, China; CAS Center for Excellence in Quaternary Science and Global Change, Xi'an 710061, Shanxi Province, China
| | - Luhua Wu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, Guizhou Province, China; University of Chinese Academy of Sciences, Beijing 100049, China; Puding Karst Ecosystem Observation and Research Station, Chinese Academy of Sciences, Puding 562100, Guizhou Province, China
| | - Fei Chen
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, Guizhou Province, China; College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Chaojun Li
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, Guizhou Province, China; University of Chinese Academy of Sciences, Beijing 100049, China; Puding Karst Ecosystem Observation and Research Station, Chinese Academy of Sciences, Puding 562100, Guizhou Province, China
| | - Xuling Luo
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, Guizhou Province, China; Puding Karst Ecosystem Observation and Research Station, Chinese Academy of Sciences, Puding 562100, Guizhou Province, China; School of Geography and Environmental Sciences, Guizhou Normal University, Guiyang 550001, China
| | - Min Liu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, Guizhou Province, China; Puding Karst Ecosystem Observation and Research Station, Chinese Academy of Sciences, Puding 562100, Guizhou Province, China; School of Geography and Environmental Sciences, Guizhou Normal University, Guiyang 550001, China
| | - Sirui Zhang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, Guizhou Province, China; Puding Karst Ecosystem Observation and Research Station, Chinese Academy of Sciences, Puding 562100, Guizhou Province, China; School of Geography and Environmental Sciences, Guizhou Normal University, Guiyang 550001, China
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Li W, Wang Y, Xie S, Cheng X. Exploring the regional differences of ecosystem health and its spatial relationships with urban forms in China. Environ Sci Pollut Res Int 2023; 30:62000-62014. [PMID: 36934185 DOI: 10.1007/s11356-023-26356-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 03/05/2023] [Indexed: 05/10/2023]
Abstract
A deeper understanding of the regional differences and driving factors behind ecosystem health (EH) is of vital for ecosystem management and restoration. Although a considerable number of studies have focused on this topic, few studies have explored the spatial relationship and scale effect between urban forms and EH from the perspective of urban scale, agglomeration and irregularity. Therefore, this study first constructed an improved evaluation framework by integrating vigor, organization, resilience and ecosystem services supply-demand ratio to measure the EH level in China at the county scale during 1995-2015, and then evaluated and compared the spatial relationships between five urban form metrics and EH based on the spatial regression model at the national, regional, urban agglomeration and city scales. The results showed that the level of EH in China spatially decreased from the southeast to the northwest, and displaying significant spatial agglomeration. At the national scale, the fragmentation and complexity of urban form exerted the greater negative influence on EH than urban expansion scale. At the regional scale, controlling urban expansion scale and enhancing landscape connectivity were conducive to the improving of EH in the central and eastern regions. At the urban agglomeration scale, the regularity and compactness of urban form played a key role in the sustainable development of regional and national urban agglomerations. At the city scale, large cities can improve environmental quality by limiting the size of core patches and reducing the complexity of urban shape. This paper can provide a scientific guidance for ecosystem protection and urban high-quality development.
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Affiliation(s)
- Weijie Li
- School of Geographical Sciences, China West Normal University, Nanchong, 637009, China
- Sichuan Provincial Engineering Laboratory of Monitoring and Control for Soil Erosion in Dry Valleys, China West Normal University, Nanchong, 637009, China
| | - Yong Wang
- Chongqing Key Laboratory of Karst Environment, School of Geographical Sciences, Southwest University, Chongqing, 400715, China.
| | - Shiyou Xie
- Chongqing Key Laboratory of Karst Environment, School of Geographical Sciences, Southwest University, Chongqing, 400715, China
| | - Xian Cheng
- College of Resources and Environmental Science, Southwest University, Chongqing, 400716, China
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Wang X, Li J, Tan L, Yao J, Zheng Y, Shen Q, Tan X. The impact of land use on stream macroinvertebrates: a bibliometric analysis for 2010-2021. Environ Monit Assess 2023; 195:613. [PMID: 37099192 DOI: 10.1007/s10661-023-11235-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 04/10/2023] [Indexed: 06/19/2023]
Abstract
Changes in stream biodiversity are now mainly driven by land-use development. However, a literature review on the impact of land use on stream macroinvertebrates is lacking, especially a scientometric review. Here, we bibliometrically analyzed the literature on land use and stream macroinvertebrates that were published in 2010-2021 and listed in the Web of Science database. We found that the impact of land use on stream macroinvertebrates had been increasingly studied and that these studies were distributed across the globe and had multi-national collaborations. Through co-citation analysis and high-frequency keyword analysis, we found that land use and some environmental factors, especially water quality and habitat, affected macroinvertebrate community biodiversity, biotic integrity, and patterns. Macroinvertebrate traits, analytical methods or models, evaluation index development, and riparian vegetation were the research hotspots. Using historical direct citation network analysis, we also found that the analytical methods in this field and the macroinvertebrate evaluation index had clear development trends from 2010 to 2021. Our findings can help researchers quickly grasp the background of the impact of land use on stream macroinvertebrates and inform future research.
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Affiliation(s)
- Xingzhong Wang
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development, College of Life Sciences, Huzhou University, Huzhou, 313000, People's Republic of China
| | - Jie Li
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha , 410013, Hunan, People's Republic of China
| | - Lu Tan
- Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, People's Republic of China
| | - Jianliang Yao
- Tonglu Environmental Monitoring Station, Hangzhou, 311500, People's Republic of China
| | - Ying Zheng
- Zhejiang Provincial Key Laboratory of Aquatic Resources Conservation and Development, College of Life Sciences, Huzhou University, Huzhou, 313000, People's Republic of China
| | - Qingna Shen
- School of Geomatics and Municipal Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, 310018, People's Republic of China
| | - Xiang Tan
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, People's Republic of China.
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30
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Wang Y, Yang Z, Yu M, Lin R, Zhu L, Bai F. Integrating Ecosystem Health and Services for Assessing Ecological Risk and its Response to Typical Land-Use Patterns in the Eco-fragile Region, North China. Environ Manage 2023; 71:867-884. [PMID: 36318286 DOI: 10.1007/s00267-022-01742-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 10/19/2022] [Indexed: 05/08/2023]
Abstract
Changes in land-use patterns may increase the ecological risks faced by Eco-Fragile regions. It is vital for regional ecological restoration and management of Eco-Fragile regions to reasonably assess ecological risk and study its response to typical land-use patterns. Existing study on regional ecological risk largely ignored the internal representation of ecosystem health and ecosystem services to ecological risk, and also ignored the internal relationship between ecological risk and land use patterns. This study developed a regional ecological assessment model by describing the relationship between ecosystem health, ecosystem services and ecological risks. Among them, the ecosystem health assessment used the Net Primary Productivity, landscape index and ecosystem elasticity coefficient based on different land use patterns to build Vigor-Organization-Resilience (VOR) model, and the improved equivalent factor method was used to calculate the ecosystem service value. Taking the Fen River Basin (FRB), a typical Eco-Fragile region of the Loess Plateau, as a study region, spatial auto-correlation analysis was used to reveal the temporal and spatial changes and spatial clustering characteristics of regional ecological risk, and regression analysis was used to study the relationship between typical land use patterns and ecological risks, which was included in the consideration of ecological and environmental risk management strategies. The results show that the regions with high ecological risk are mainly distributed in the middle and southwest of the FRB; the regions with low ecological risk are mainly distributed in the north, east and west of the FRB. Both high-risk and low-risk areas show significant spatial clustering effects. The change of ecological risk in FRB is related to the land use patterns. The ecological risk is negatively related to the expansion of construction land and cultivated land at the county and patch scales. On this basis, the environmental management strategies at different scales are discussed. This study can helpful deepen the understanding of the impact of land use patterns on ecological risk, and can also provide important reference for regional ecological risk management and land use policies.
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Affiliation(s)
- Yisen Wang
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei, 430072, China
| | - Zhonghua Yang
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei, 430072, China.
| | - Minghui Yu
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei, 430072, China
| | - Ruyu Lin
- CCCC Hemei Eco-environmental Construction Co., Ltd, Wuhan, Hubei, 430050, China
| | - Lei Zhu
- CCCC Hemei Eco-environmental Construction Co., Ltd, Wuhan, Hubei, 430050, China
| | - Fengpeng Bai
- Changjiang Water Resources Protection Institute, Wuhan, Hubei, 430051, China
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31
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Surendran U, Jayakumar M, Raja P, Gopinath G, Chellam PV. Microplastics in terrestrial ecosystem: Sources and migration in soil environment. Chemosphere 2023; 318:137946. [PMID: 36708782 DOI: 10.1016/j.chemosphere.2023.137946] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 01/10/2023] [Accepted: 01/22/2023] [Indexed: 06/18/2023]
Abstract
Plastics, especially microplastics in soils, are considered a severe environmental issue worldwide. However, globally, the main research focus is on microplastic pollution in the marine environment, the microplastic pollution on soils and sediments remains on the sideline so far. But the fact is that microplastics are omnipresent in terrestrial systems in the form of microbeads in industrial systems and in sewage sludge. Their presence in agricultural soils and sediments is enormously increased due to plastic mulching, plastic greenhouses and compost and extensive use of controlled release fertilizers. Therefore, this review outlines the global scenario regarding plastics and microplastics production, consumption, and possible pathways of penetration into the soil environment. Various mechanisms to restrict and manage the pathways of plastics and microplastics into the soil environment are also discussed. This review also focuses on the challenges and limitations on the use of plastic alternates such as bioplastics and oxo plastics. Also, the knowledge gaps on the source of microplastics in the environment and their deleterious effects on properties of soil, soil health and focused light on their soil trophic transfer in food chains via plants. This review provides a detailed insight on the management and possible control measures to alleviate the potential risk caused by microplastics pollution in the soil environment and the overall ecosystem's health. In spite of the occurrence and fate of microplastics on terrestrial environment, knowledge gaps and challenges for tackling this contamination are also explored which facilitates the policy makers to develop regulatory measures towards the containment of microplastics in living ecosystem.
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Affiliation(s)
- U Surendran
- Centre for Water Resources Development and Management, Kozhikode, Kerala, India.
| | - M Jayakumar
- Central Coffee Research Institute , Coffee Research Station, Chikmagaluru, Karnataka, India
| | - P Raja
- ICAR-Indian Institute of Soil and Water Conservation, Research Centre, Ooty, Tamil Nadu, India
| | - Girish Gopinath
- Kerala University of Fisheries and Ocean Studies, Kochi, Kerala, India
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Theirlynck T, Mendonça IRW, Engelen AH, Bolhuis H, Collado-Vides L, van Tussenbroek BI, García-Sánchez M, Zettler E, Muyzer G, Amaral-Zettler L. Diversity of the holopelagic Sargassum microbiome from the Great Atlantic Sargassum Belt to coastal stranding locations. Harmful Algae 2023; 122:102369. [PMID: 36754458 DOI: 10.1016/j.hal.2022.102369] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 10/26/2022] [Accepted: 12/07/2022] [Indexed: 06/18/2023]
Abstract
The holopelagic brown macroalgae Sargassum natans and Sargassum fluitans form essential habitats for attached and mobile fauna which contributes to a unique biodiversity in the Atlantic Ocean. However, holopelagic Sargassum natans (genotype I & VIII) and Sargassum fluitans (genotype III) have begun forming large accumulations with subsequent strandings on the western coast of Africa, the Caribbean and northern Brazil, threatening local biodiversity of coastal ecosystems and triggering economic losses. Moreover, stranded masses of holopelagic Sargassum may introduce or facilitate growth of bacteria that are not normally abundant in coastal regions where Sargassum is washing ashore. Hitherto, it is not clear how the holopelagic Sargassum microbiome varies across its growing biogeographic range and what factors drive the microbial composition. We determined the microbiome associated with holopelagic Sargassum from the Great Atlantic Sargassum Belt to coastal stranding sites in Mexico and Florida. We characterized the Sargassum microbiome via amplicon sequencing of the 16S V4 region hypervariable region of the rRNA gene. The microbial community of holopelagic Sargassum was mainly composed of photo(hetero)trophs, organic matter degraders and potentially pathogenic bacteria from the Pseudomonadaceae, Rhodobacteraceae and Vibrionaceae. Sargassum genotypes S. natans I, S. natans VIII and S. fluitans III contained similar microbial families, but relative abundances and diversity varied. LEfSE analyses further indicated biomarker genera that were indicative of Sargassum S. natans I/VIII and S. fluitans III. The holopelagic Sargassum microbiome showed biogeographic patterning with high relative abundances of Vibrio spp., but additional work is required to determine whether that represents health risks in coastal environments. Our study informs coastal management policy, where the adverse sanitary effects of stranded Sargassum might impact the health of coastal ecosystems.
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Affiliation(s)
- Tom Theirlynck
- Department of Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, Den Burg, Texel, The Netherlands; Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam 1098 XH, The Netherlands
| | - Inara Regina W Mendonça
- Department of Botany, Institute of Biosciences, University of São Paulo, Rua do Matão 277, São Paulo, 05508-090, Brazil
| | - Aschwin H Engelen
- Centro de Ciências do Mar, Universidade do Algarve, Gambelas, 8005-139, Faro, Portugal
| | - Henk Bolhuis
- Department of Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, Den Burg, Texel, The Netherlands
| | - Ligia Collado-Vides
- Department of Biological Sciences, Institute for Water and Environment, Florida International University, 11200 SW 8th Street, Miami, 33199, FL, United States of America
| | - Brigitta I van Tussenbroek
- Unidad Académica de Sistemas Arrecifales, Instituto de Ciencias del Mar y Limnología-UNAM, Prol. Av. Niños Héroes S/N, Puerto Morelos, C.P. 77580, Q. Roo, Mexico
| | - Marta García-Sánchez
- Unidad Académica de Sistemas Arrecifales, Instituto de Ciencias del Mar y Limnología-UNAM, Prol. Av. Niños Héroes S/N, Puerto Morelos, C.P. 77580, Q. Roo, Mexico; Instituto de Ingeniería, UNAM, Ciudad Universitaria, Ciudad de México, C.P. 04510, Mexico
| | - Erik Zettler
- Department of Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, Den Burg, Texel, The Netherlands
| | - Gerard Muyzer
- Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam 1098 XH, The Netherlands
| | - Linda Amaral-Zettler
- Department of Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, Den Burg, Texel, The Netherlands; Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam 1098 XH, The Netherlands.
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Shen C, Liao Q, Bootsma HA, Lafrancois BM. Modelling the transport of sloughed cladophora in the nearshore zone of Lake Michigan. J Environ Manage 2022; 323:116203. [PMID: 36108511 DOI: 10.1016/j.jenvman.2022.116203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 08/19/2022] [Accepted: 09/05/2022] [Indexed: 06/15/2023]
Abstract
The invasion of dreissenid mussels has profoundly altered benthic physical environments and whole-lake nutrient cycling in the Great Lakes over the past several decades. The resurgence of the filamentous green alga Cladophora appears to be one of the consequences of this invasion. Sloughed Cladophora deteriorates water quality, fouls recreational beaches, and may contribute to outbreaks of avian botulism, which have been especially severe in the Sleeping Bear Dunes National Lakeshore (SLBE) region of Lake Michigan. To help determine the fate of sloughed Cladophora, a Lagrangian particle trajectory model was developed to track the transport of Cladophora fragments in the nearshore zone based upon a physical transport-mixing model. The model results demonstrate that the primary deposition sites of sloughed Cladophora within the SLBE region are mid-depth sites not far away from their initial growth area. Because of high algae production in the nearshore waters and limited exchange between the inner and outer bay, the shoreline beach of Platte Bay appears to be particularly vulnerable to fouling, with overall three times as many accumulated particles as those along the Sleeping Bear Bay and Good Harbor Bay. The results of this model may be used to guide regional environmental management initiatives and provide insights into the mechanisms responsible for avian botulism outbreaks. This model may also inform the development of whole-lake ecosystem models that account for nearshore-offshore interactions.
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Affiliation(s)
- Chunqi Shen
- College of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, Jiangsu, China; Department of Civil and Environmental Engineering, University of Wisconsin-Milwaukee, Milwaukee, WI, USA.
| | - Qian Liao
- Department of Civil and Environmental Engineering, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
| | - Harvey A Bootsma
- School of Freshwater Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
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Fasina FO, Nanyingi M, Wangila RS, Gikonyo S, Omani R, Nyariki T, Wahome LW, Kiplamai J, Tenge E, Kivaria F, Okuthe S, Nzietchueng S, Kimani T, Kimutai J, Mucheru G, Njagi O, Njogu G, Rono R, Maina GN, Mogaka D, Mathooko J, Sirdar MM, Mogoa EG, Makumi A, Bett B, Mwatondo A, Kimonye VK, Rwego IB, Adan A, Wakhusama S, Bastiaensen P, Bebay C. Co-creation and priority setting for applied and implementation research in One Health: Improving capacities in public and animal health systems in Kenya. One Health 2022; 15:100460. [PMID: 36532669 PMCID: PMC9754982 DOI: 10.1016/j.onehlt.2022.100460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/15/2022] [Accepted: 11/15/2022] [Indexed: 11/18/2022] Open
Abstract
Background The Kenyan government has successfully been implementing sector specific and multisectoral projects aligned to the Global Health Security Agenda (GHSA). For operational readiness and to enhance the effective planning and implementation of Global Health Security Programs (GHSP) at national and subnational level, there is an urgent need for stakeholders' engagement process to seek input in identifying challenges, prioritise activities for field implementation, and identify applied research and development questions, that should be addressed in the next five years. Methods The modified Child Health and Nutrition Research Initiative (CHNRI) method was used to identify global health security related priorities for multisectoral implementation in Kenya. Subject matter experts from human, animal and environmental health sectors at national and subnational level contributed to predefined research questions from a number of sources and activities for consideration for implementation using a One Health approach. Sixty-two experts scored the 193 questions based on five pre-defined criteria: 1) feasibility and answerability; 2) potential for burden reduction; 3) potential for a paradigm shift; 4) potential for translation and implementation; and 5) impact on equity. Data resulting from this process was then analysed in a Microsoft Excel spreadsheet to determine the research priorities and experts' agreements. Results Among the priority activities identified for implementation research were; strengthening One Health governance and legal frameworks; integration of ecosystem health into One Health programming; strengthening disease reporting, integrated data collection, information sharing and joint outbreak response; socio-anthropological and gender-based approaches in improving risk and behavioural change communication and community engagement; and one health workforce development. In addition, the potentials to invest in collaborative predictive risk modelling to enhance epidemic intelligence systems, while strengthening the One Health approach in the food safety incident and emergency response plans are feasible. Interpretation Successful multisectoral implementation of global health security program in Kenya calls for a whole of society approach that will harness community and private sector knowledge to build preparedness and response capacities while targeting neglected and marginalised populations. This research provides a framework that is worth emulating for cost-effective planning and implementation of overarching One Health programs.
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Affiliation(s)
- Folorunso O. Fasina
- Emergency Center for Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya,Corresponding author.
| | - Mark Nanyingi
- Emergency Center for Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya,Faculty of Health and Life Sciences, Department of One Health, University of Liverpool, Liverpool, UK
| | - Rinah S. Wangila
- Emergency Center for Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Stephen Gikonyo
- Emergency Center for Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Ruth Omani
- Emergency Center for Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Thomas Nyariki
- Emergency Center for Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Lucy W. Wahome
- Emergency Center for Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Joy Kiplamai
- Emergency Center for Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Evans Tenge
- Emergency Center for Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Fredrick Kivaria
- Emergency Center for Transboundary Animal Diseases (ECTAD), Regional Office for Eastern Africa, Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Sam Okuthe
- Emergency Center for Transboundary Animal Diseases (ECTAD), Regional Office for Eastern Africa, Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Serge Nzietchueng
- Emergency Center for Transboundary Animal Diseases (ECTAD), Regional Office for Eastern Africa, Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Tabitha Kimani
- Emergency Center for Transboundary Animal Diseases (ECTAD), Regional Office for Eastern Africa, Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Joshua Kimutai
- Emergency Center for Transboundary Animal Diseases (ECTAD), Regional Office for Eastern Africa, Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Gerald Mucheru
- Emergency Center for Transboundary Animal Diseases (ECTAD), Regional Office for Eastern Africa, Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Obadiah Njagi
- Directorate of Veterinary Services (DVS), Ministry of Agriculture, Livestock, Fisheries and Co-operatives, Nairobi, Kenya
| | - George Njogu
- Emergency Center for Transboundary Animal Diseases (ECTAD), Regional Office for Eastern Africa, Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Robert Rono
- Department of Health Services, Baringo County Government, Kabarnet, Kenya
| | - Grace N. Maina
- Directorate of Veterinary Services, Murang'a County Government, Murang'a, Kenya
| | - Dan Mogaka
- World Health Organization (WHO), World Health Emergencies (WHE), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Joseph Mathooko
- Inclusive Value Chain, Food and Agriculture Organization of the United Nations (FAO), United Nations Office in Nairobi (UNON), Gigiri, Nairobi, Kenya
| | - Mohammed M. Sirdar
- Sub-Regional Representation for Southern Africa, World Organization for Animal Health, Gaborone, Botswana
| | - Eddy G.M. Mogoa
- Africa One Health University Network (AFROHUN) Kenya, Faculty of Veterinary Medicine, University of Nairobi, Nairobi, Kenya
| | - Angela Makumi
- International Livestock Research Institute (ILRI), Nairobi, Kenya
| | - Bernard Bett
- International Livestock Research Institute (ILRI), Nairobi, Kenya
| | - Athman Mwatondo
- Zoonotic Disease Unit (ZDU), Ministry of Health, Nairobi, Kenya
| | | | - Innocent B. Rwego
- CORE Group Polio-Global Health Security Project, Kenya and Somalia, Nairobi, Kenya
| | - Abdirahman Adan
- CORE Group Polio-Global Health Security Project, Kenya and Somalia, Nairobi, Kenya
| | - Samuel Wakhusama
- Sub-Regional Representation for Eastern Africa, World Organization for Animal Health, Nairobi, Kenya
| | - Patrick Bastiaensen
- Sub-Regional Representation for Eastern Africa, World Organization for Animal Health, Nairobi, Kenya
| | - Charles Bebay
- Faculty of Health and Life Sciences, Department of One Health, University of Liverpool, Liverpool, UK
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Sruthi KV, Navaneeth A, Harikumar PS. Assessment of water quality and ecosystem health of a canal system during the lockdown period. Sustain Water Resour Manag 2022; 9:5. [PMID: 36407803 PMCID: PMC9660105 DOI: 10.1007/s40899-022-00784-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
The impacts of the lockdown period on water quality and ecosystem health in an artificial canal water system were investigated from the rapidly growing Kozhikode City in India. The ecosystem health is measured in terms of water quality indicators such as pH, electrical conductivity (EC), dissolved oxygen (DO), biological oxygen demand (BOD) and Escherichia coli (E. coli) during the pre-lockdown and lockdown period. The study reveals the massive improvement of the ecosystem health of the canal in terms of DO, BOD, and E. coli during the lockdown period. DO values were improved from anoxic (0 mg/L) to oxic (> 5 mg/L), BOD reduced from 31 to 0.7 mg/L as well as E. coli at major urban stretches were 800 MPN/100 mL, which was observed to be absent during the lockdown period. Urban stretches of the canal implicitly proved that the lockdown period was not sufficient to recover the natural ecosystem condition of the canal system. Principal component analysis revealed that the ecosystem health of the canal majorly governs two factors, such as the weathering process and anthropogenic waste sources. The study advocates the policy makers that temporary pollution source control in a timely interval may heal the environment and is useful to the regulatory bodies for suggesting the pollution source control mechanism.
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Affiliation(s)
- K. V. Sruthi
- Subcentre, KSCSTE - Centre for Water Resources Development and Management, Trivandrum, India
| | - A. Navaneeth
- KSCSTE – Centre for Water Resources Development and Management, Kozhikode, India
| | - P. S. Harikumar
- KSCSTE – Centre for Water Resources Development and Management, Kozhikode, India
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Padua S, Kripa V, Prema D, Mohamed KS, Jeyabaskaran R, Kaladharan P, Ratheesh L, Jenny B, Shylaja G, Joseph RV, Shyamala MP, Vysakhan P, John S, Babu A. Assessment of ecosystem health of a micro-level Ramsar coastal zone in the Vembanad Lake, Kerala, India. Environ Monit Assess 2022; 195:95. [PMID: 36355338 PMCID: PMC9648893 DOI: 10.1007/s10661-022-10692-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Health of an ecosystem is very much important as we depend on its goods and services for our existence. Because of this, we need to continuously monitor its health for human benefit and for identifying areas for improvement of our natural systems. The present study tries to assess the condition of a coastal ecosystem within the Vembanad Lake, Kerala, India, using key water quality parameters at micro-level. Principal component analysis identified the minimum required water quality dataset for further analysis and was scored using linear scoring functions. The weighted additive method was used to integrate the individual scores to arrive at a final score representing the ecosystem health. Spline interpolation was applied to develop the ecosystem health map of the study area. Using this method, 35.8% area of the aquatic ecosystem studied was characterized as good, 32.2% as moderate, 26.2% as fair and 5.8% as poor. The assessment results can help the policymakers/managers to make appropriate decisions for the better management of the coastal ecosystems studied. Moreover, this methodology can be replicated for the assessment of coastal regions with similar ecosystem characteristics.
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Affiliation(s)
- Shelton Padua
- ICAR - Central Marine Fisheries Research Institute, PO Box 1603, Kochi, 682018, Kerala, India.
| | - V Kripa
- ICAR - Central Marine Fisheries Research Institute, PO Box 1603, Kochi, 682018, Kerala, India
- Coastal Aquaculture Authority, Integrated Office Complex for Animal Husbandry and Fisheries Department, Government of India, Tamil Nadu, Chennai, 600 035, India
| | - D Prema
- ICAR - Central Marine Fisheries Research Institute, PO Box 1603, Kochi, 682018, Kerala, India
| | - K S Mohamed
- ICAR - Central Marine Fisheries Research Institute, PO Box 1603, Kochi, 682018, Kerala, India
- Sustainable Seafood Network of India (SSNI), Thiruvananthapuram, 695001, Kerala, India
| | - R Jeyabaskaran
- ICAR - Central Marine Fisheries Research Institute, PO Box 1603, Kochi, 682018, Kerala, India
| | - P Kaladharan
- ICAR - Central Marine Fisheries Research Institute, PO Box 1603, Kochi, 682018, Kerala, India
| | - Lavanya Ratheesh
- ICAR - Central Marine Fisheries Research Institute, PO Box 1603, Kochi, 682018, Kerala, India
| | - B Jenny
- ICAR - Central Marine Fisheries Research Institute, PO Box 1603, Kochi, 682018, Kerala, India
| | - G Shylaja
- ICAR - Central Marine Fisheries Research Institute, PO Box 1603, Kochi, 682018, Kerala, India
| | - Reena V Joseph
- ICAR - Central Marine Fisheries Research Institute, PO Box 1603, Kochi, 682018, Kerala, India
| | - M P Shyamala
- ICAR - Central Marine Fisheries Research Institute, PO Box 1603, Kochi, 682018, Kerala, India
| | - P Vysakhan
- ICAR - Central Marine Fisheries Research Institute, PO Box 1603, Kochi, 682018, Kerala, India
| | - Seban John
- ICAR - Central Marine Fisheries Research Institute, PO Box 1603, Kochi, 682018, Kerala, India
| | - Akhil Babu
- ICAR - Central Marine Fisheries Research Institute, PO Box 1603, Kochi, 682018, Kerala, India
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Xu W, He M, Meng W, Zhang Y, Yun H, Lu Y, Huang Z, Mo X, Hu B, Liu B, Li H. Temporal-spatial change of China's coastal ecosystems health and driving factors analysis. Sci Total Environ 2022; 845:157319. [PMID: 35839892 DOI: 10.1016/j.scitotenv.2022.157319] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/28/2022] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
Understanding the spatial distribution pattern change and driving factors behind ecosystem health is essential to ecosystem management and restoration. However, in the research of regional ecosystem health, there is little research on ecosystem health in coastal regions, and there is little exploration of its temporal and spatial pattern change and its driving factors. In this study, we use the Vigor-Organization-Resilience-Services (VORS) model and marine ecosystem health index to diagnose the ecosystem health of the whole coastal area of China over the last 20 years, and find the main contributing factors affecting ecosystem health with the help of geographic detectors and geographic weighted regression analysis. Our results show that: (1) the ecosystem health level in the south of the coastal region is higher than that in the north, mainly with 30° north latitude as the main dividing line. (2) The regions with high change rate are mainly concentrated in Bohai Bay, the Yangtze River Estuary, Hangzhou Bay and the Pearl River Estuary, and the change is mainly negative. (3) Both natural and human factors have an impact on ecosystem health, and the influencing factors are different on different scales. The interaction between different factors is greater than the impact of a single factor on ecosystem health. The study puts forward a new evaluation framework for the study of ecosystem health in coastal areas, which can be applied to other coastal areas with similar conditions, and can help the sustainable and healthy development of coastal areas.
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Affiliation(s)
- Wenbin Xu
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Mengxuan He
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China.
| | - Weiqing Meng
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Ying Zhang
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Haofan Yun
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Yalan Lu
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Zhimei Huang
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Xunqiang Mo
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Beibei Hu
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Baiqiao Liu
- School of Geographic and Environmental Science, Tianjin Normal University, Tianjin 300387, China
| | - Hongyuan Li
- College of Environment Science and Engineering, Nankai University, Tianjin 300350, China
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Ndimele PE, Owodeinde FG, Giwa-Ajeniya AO, Moronkola BA, Adaramoye OR, Ewenla LO, Kushoro HY. Multi-metric Ecosystem Health Assessment of Three Inland Water Bodies in South-west, Nigeria, with Varying Levels of Sand Mining Activities and Heavy Metal Pollution. Biol Trace Elem Res 2022; 200:3355-3376. [PMID: 34505259 DOI: 10.1007/s12011-021-02907-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 08/25/2021] [Indexed: 11/24/2022]
Abstract
This study was conducted to determine the health status of three water bodies (Badagry Creek, Ologe Lagoon and River Owo) exposed to varying degrees of sand mining activities and industrial pollution. Water, sediment and fish samples were collected monthly from the three water bodies between April 2019 and March 2020. Standard methods were used for the analysis of physico-chemical parameters, fish diversity indices, length-weight relationship, condition factor, sediment pollution indices, ecotoxicology of heavy metals in sediment, potential ecological risks and health risk assessment of heavy metals. Positive matrix factorization (PMF) was used to identify and quantify metal source. Shannon's diversity index (H') and condition factor varied between 2.03-2.37 and 0.84-4.86 respectively. Enrichment factor had a range of 4.05×10-4-8.65×10-1, while geoaccumulation index varied from -12.14 to -0.38. The mean quotients using the probable effect level (m-PEL-Q) are 3.91×10-4, 4.77×10-4 and 7.87×10-4 for Ologe Lagoon, Badagry Creek and River Owo respectively. The trend was the same with mean quotients using effect range-median (m-ERM-Q). The estimated dietary intake ranged from 0.00 mg/kg/day in Pb from River Owo to 1.15 × 10-3 mg/kg/day in Fe still from River Owo. The range of values of the target hazard quotient of the metals in Badagry Creek, River Owo and Ologe Lagoon are 1.23×10-4-1.65×10-2, 0.00-1.64×10-2 and 5.76×10-5-1.65×10-2 respectively. PMF identified three sources of metal into the aquatic ecosystems: agricultural, industrial and geological inputs. The study showed that the three aquatic ecosystems are healthy but require regular monitoring to promptly detect sudden changes in their health status.
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Affiliation(s)
- Prince Emeka Ndimele
- Department of Fisheries, Faculty of Science, Lagos State University, Ojo, Lagos State, Nigeria.
| | | | | | | | | | - Lois Oyindamola Ewenla
- Department of Fisheries, Faculty of Science, Lagos State University, Ojo, Lagos State, Nigeria
| | - Hijrah Yetunde Kushoro
- Department of Fisheries, Faculty of Science, Lagos State University, Ojo, Lagos State, Nigeria
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Wei W, Nan S, Liu C, Xie B, Zhou J, Liu C. Assessment of Spatio-Temporal Changes for Ecosystem Health: A Case Study of Hexi Corridor, Northwest China. Environ Manage 2022; 70:146-163. [PMID: 35501485 DOI: 10.1007/s00267-022-01655-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 04/19/2022] [Indexed: 06/14/2023]
Abstract
Ecosystem health (EH) is important for ensuring sustainable development, and the main goal of environmental protection and governance, especially for ecological fragile areas. Scientific assessment of EH can improve decision-making ability and inform sustainable development. In this paper, the effects of natural and social environment were integrated to reflect the characteristics of EH based on a comprehensive assessment system including ecosystem vigor (EV), ecosystem organization (EO), ecosystem resilience (ER), and the ratio of supply to demand of ecosystem services (ESDR) from the perspectives of ecological integrity and human demand for ecosystem services (ES). The Entire-Array-Polygon (EAP) method was applied to calculate an ecosystem health index (EHI) and analyze spatio-temporal change from 2000 to 2020 in Hexi Corridor (HC), Northwest China. The results showed that: (1) The spatial distribution of EV, EO, ER, and ESDR was generally consistent, with a low spatial distribution in the northwest and high in the southeast, the values showed an overall increasing trend from 2000 to 2020. (2) The spatial distribution of EHI was high in the northwest and central regions, and low in the southwest, reflected a moderate health level. The proportion of area with well and relatively well health was increasing, which indicated that EH showed an improving trend. (3) The significantly decrease areas of EHI were mainly located in urban areas, and the increases areas were mainly located outside of urban areas. The distribution of the EH condition has obvious orientation characteristics. The results of the study provide theoretical and practical implications for regional ecological conservation and management.
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Affiliation(s)
- Wei Wei
- College of Geography and Environmental Science, Northwest Normal University, Lanzhou, 730070, Gansu, China
| | - Shengxiang Nan
- College of Geography and Environmental Science, Northwest Normal University, Lanzhou, 730070, Gansu, China.
| | - Chunfang Liu
- College of Social Development and Public Administration, Northwest Normal University, Lanzhou, 730070, Gansu, China
- Gan Su Engineering Research Center of Land Utilization and Comprehension Consolidation, Lanzhou, 730070, Gansu, China
| | - Binbin Xie
- School of Urban Management, Lanzhou City University, Lanzhou, 730070, Gansu, China
| | - Junju Zhou
- College of Geography and Environmental Science, Northwest Normal University, Lanzhou, 730070, Gansu, China
| | - Congying Liu
- College of Geography and Environmental Science, Northwest Normal University, Lanzhou, 730070, Gansu, China
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40
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Li Z, Sun A, Liu X, Chen QL, Bi L, Ren PX, Shen JP, Jin S, He JZ, Hu HW, Yang Y. Climate warming increases the proportions of specific antibiotic resistance genes in natural soil ecosystems. J Hazard Mater 2022; 430:128442. [PMID: 35158246 DOI: 10.1016/j.jhazmat.2022.128442] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 02/02/2022] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
Understanding the future distribution of antibiotic resistance in natural soil ecosystems is important to forecast their impacts on ecosystem and human health under projected climate change scenarios. Therefore, it is critical and timely to decipher the links between climate warming and antibiotic resistance, two of Earth's most imminent problems. Here, we explored the role of five-year simulated climate warming (+ 4 °C) on the diversity and proportions of soil antibiotic resistance genes (ARGs) across three seasons in both plantation and natural forest ecosystems. We found that the positive effects of warming on the number and proportions of ARGs were dependent on the sampling seasons (summer, autumn and winter), and seasonality was a key factor driving the patterns of ARG compositions in forest soils. Fifteen ARGs, conferring resistance to common antibiotics including aminoglycoside, beta-lactam, macrolide-lincosamide-streptogramin B, multidrug, sulfonamide, and tetracycline, were significantly enriched in the warming treatment. We showed that changes in soil properties and community compositions of bacteria, fungi and protists can explain the changes in soil ARGs under climate warming. Taken together, these findings advance our understanding of environmental ARGs under the context of future climate change and suggest that elevated temperature may promote the abundance of specific soil ARGs, with important implications for ecosystem and human health.
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Affiliation(s)
- Zixin Li
- State Key Laboratory for Subtropical Mountain Ecology of the Ministry of Science and Technology and Fujian Province, Fujian Normal University, Fuzhou 350007, China; School of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Anqi Sun
- State Key Laboratory for Subtropical Mountain Ecology of the Ministry of Science and Technology and Fujian Province, Fujian Normal University, Fuzhou 350007, China; School of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Xiaofei Liu
- State Key Laboratory for Subtropical Mountain Ecology of the Ministry of Science and Technology and Fujian Province, Fujian Normal University, Fuzhou 350007, China; School of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Qing-Lin Chen
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Victoria 3010, Australia
| | - Li Bi
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Victoria 3010, Australia
| | - Pei-Xin Ren
- State Key Laboratory for Subtropical Mountain Ecology of the Ministry of Science and Technology and Fujian Province, Fujian Normal University, Fuzhou 350007, China; School of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Ju-Pei Shen
- State Key Laboratory for Subtropical Mountain Ecology of the Ministry of Science and Technology and Fujian Province, Fujian Normal University, Fuzhou 350007, China; School of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
| | - Shengsheng Jin
- State Key Laboratory for Subtropical Mountain Ecology of the Ministry of Science and Technology and Fujian Province, Fujian Normal University, Fuzhou 350007, China
| | - Ji-Zheng He
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Victoria 3010, Australia
| | - Hang-Wei Hu
- State Key Laboratory for Subtropical Mountain Ecology of the Ministry of Science and Technology and Fujian Province, Fujian Normal University, Fuzhou 350007, China; School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Victoria 3010, Australia.
| | - Yusheng Yang
- State Key Laboratory for Subtropical Mountain Ecology of the Ministry of Science and Technology and Fujian Province, Fujian Normal University, Fuzhou 350007, China; School of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China
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Lecomte KL, Pasquini AI, Manjarrez-Rangel CS, Puy-Alquiza MJ, de Jesús N Segoviano-Garfias J, Zanor GA. Surface hydrochemical dynamic in an artificial lake with anthropic impact: La Purísima reservoir, Central Mexico. Environ Monit Assess 2022; 194:128. [PMID: 35080661 DOI: 10.1007/s10661-022-09773-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
In the present study, the hydrochemical dynamic and the water quality of La Purísima reservoir, Central Mexico, have been determined. The reservoir presents total dissolved solids (TDSs) between 146 and 328 mg L-1 and water quality neutral to slightly alkaline (pH 7.0 to 8.7) during the dry season, whereas it becomes clearly alkaline (pH 8.1-9.9) in the rainy-warm season. Through its main tributaries, La Purísima reservoir has been receiving water affected by anthropic activities, such as mining, urbanization, and agriculture. La Purísima reservoir indicates water quality suitable for irrigation and aquatic lives, but unsuitable for drinking purposes. A geochemical evolution from the riverine to the lacustrine zone is evidenced by the complexation of several free ions: the higher saturation indexes; the lower toxic metal concentrations; and the lower trophic status, which ameliorate the water quality in the lacustrine zone. Trace elements co-precipitate and are adsorbed onto bottom sediments. During summer, high evaporation rates and atmospheric precipitation are found to decline the water quality. Cluster analyses reflect the geo-setting and different pollution levels: urban impact from the north coast, and agricultural activities from the east coast. The sensitivity of the lake to geochemical behavior can be used to understand the complex dissolved geochemical dynamics in a lake and the potential effects from long-term anthropic impact variability. The information about water quality of La Purísima reservoir may be useful to preserve the ecosystem and its biodiversity.
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Affiliation(s)
- Karina L Lecomte
- Centro de Investigaciones en Ciencias de la Tierra (CICTERRA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) y, Universidad Nacional de Córdoba, Av. Vélez Sarsfield 1611, X5016CGA, Córdoba, Argentina
- Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Andrea I Pasquini
- Centro de Investigaciones en Ciencias de la Tierra (CICTERRA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) y, Universidad Nacional de Córdoba, Av. Vélez Sarsfield 1611, X5016CGA, Córdoba, Argentina
- Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Cinthya Soledad Manjarrez-Rangel
- Departamento de Ciencias Ambientales, Posgrado en Biociencias, División de Ciencias de la Vida (DICIVA), Universidad de Guanajuato, Ex Hacienda El Copal, km 9 Carretera Irapuato-Silao AP. 311, CP. 36500, Irapuato, Guanajuato, Mexico
| | - María Jesús Puy-Alquiza
- Departamento de Ingeniería en Minas, Metalurgia y Geología, División de Ingenierías, Universidad de Guanajuato, Ex Hacienda de San Matías S/N, CP. 36020, Guanajuato, Mexico
| | - José de Jesús N Segoviano-Garfias
- Departamento de Ciencias Ambientales, Posgrado en Biociencias, División de Ciencias de la Vida (DICIVA), Universidad de Guanajuato, Ex Hacienda El Copal, km 9 Carretera Irapuato-Silao AP. 311, CP. 36500, Irapuato, Guanajuato, Mexico
| | - Gabriela A Zanor
- Departamento de Ciencias Ambientales, Posgrado en Biociencias, División de Ciencias de la Vida (DICIVA), Universidad de Guanajuato, Ex Hacienda El Copal, km 9 Carretera Irapuato-Silao AP. 311, CP. 36500, Irapuato, Guanajuato, Mexico.
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Niu L, Cai H, Jia L, Luo X, Tao W, Dong Y, Yang Q. Metal pollution in the Pearl River Estuary and implications for estuary management: The influence of hydrological connectivity associated with estuarine mixing. Ecotoxicol Environ Saf 2021; 225:112747. [PMID: 34488146 DOI: 10.1016/j.ecoenv.2021.112747] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/27/2021] [Accepted: 08/31/2021] [Indexed: 06/13/2023]
Abstract
Understanding the metal pollution can help governments and estuary management groups manage metal inputs. Here, we comprehensively analyzed the behaviors of seven metals Cd, Zn, Cu, As, Pb, Cr, and Hg in water and the responses of these metals to hydrological connectivity in the Pearl River Estuary. The analyses were based on the field measurements of August-2016 in the estuary and January-2016 in the upper river mouth. We also assessed the ecosystem health of these metals. Overall, this estuary had an overall moderate pollution level, with occasional severe perturbations. The mean concentration of individual metal was in the order of Zn > As > Cu > Cr > Pb > Cd > Hg. The eastern estuary was more heavily polluted by metals (notably, Zn, Cd, and Cu) than the western estuary; this condition was attributable to sewage and industrial effluent discharges from the eastern urban cities of Dongguan and Shenzhen. Longitudinally, high levels of Cd and Zn appeared in the upper estuary, while elevated levels of Cu, As, Pb, Cr, and Hg were found in the middle and lower estuaries. The riverine inputs and estuarine mixing significantly influenced the distribution and movement of trace metals in the estuary, and have contributed to phytoplankton productivity (chlorophyll-a > 10 μg/L). River inflow inhibited the vertical diffusion of metals, and tidal currents facilitated surface-to-bottom mixing. Cu and Cd posed ecological risks. We determined the source contributions and transport routes of the metals using principal component analysis combining with multiple linear regression. The results of this study suggest that the source apportionment of metals can help to manage the source input entering into the estuary. Further, identified hydrological connectivity of metals can inform water quality managers in the highly anthropogenically influenced estuary.
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Affiliation(s)
- Lixia Niu
- School of Marine Engineering and Technology, Sun Yat-sen University (Guangzhou)/Southern Laboratory of Ocean Science and Engineering (Zhuhai), China; Institute of Estuarine and Coastal Research, Guangdong Provincial Engineering Research Center of Coasts, Islands and Reefs, Guangzhou, China.
| | - Huayang Cai
- School of Marine Engineering and Technology, Sun Yat-sen University (Guangzhou)/Southern Laboratory of Ocean Science and Engineering (Zhuhai), China; Institute of Estuarine and Coastal Research, Guangdong Provincial Engineering Research Center of Coasts, Islands and Reefs, Guangzhou, China
| | - Liangwen Jia
- School of Marine Engineering and Technology, Sun Yat-sen University (Guangzhou)/Southern Laboratory of Ocean Science and Engineering (Zhuhai), China; Institute of Estuarine and Coastal Research, Guangdong Provincial Engineering Research Center of Coasts, Islands and Reefs, Guangzhou, China
| | - Xiangxin Luo
- School of Marine Engineering and Technology, Sun Yat-sen University (Guangzhou)/Southern Laboratory of Ocean Science and Engineering (Zhuhai), China; Institute of Estuarine and Coastal Research, Guangdong Provincial Engineering Research Center of Coasts, Islands and Reefs, Guangzhou, China
| | - Wei Tao
- South China Sea Environmental Monitoring Center of State Oceanic Administration, Guangzhou, China
| | - Yanhong Dong
- South China Sea Environmental Monitoring Center of State Oceanic Administration, Guangzhou, China
| | - Qingshu Yang
- School of Marine Engineering and Technology, Sun Yat-sen University (Guangzhou)/Southern Laboratory of Ocean Science and Engineering (Zhuhai), China; Institute of Estuarine and Coastal Research, Guangdong Provincial Engineering Research Center of Coasts, Islands and Reefs, Guangzhou, China
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Sheaves M, Waltham NJ, Benham C, Bradley M, Mattone C, Diedrich A, Sheaves J, Sheaves A, Hernandez S, Dale P, Banhalmi-Zakar Z, Newlands M. Restoration of marine ecosystems: Understanding possible futures for optimal outcomes. Sci Total Environ 2021; 796:148845. [PMID: 34274664 DOI: 10.1016/j.scitotenv.2021.148845] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 06/29/2021] [Accepted: 06/30/2021] [Indexed: 05/17/2023]
Abstract
Accelerating declines in the extent, quality and functioning of the world's marine ecosystems have generated an upsurge in focus on practical solutions, with ecosystem restoration becoming an increasingly attractive mitigation strategy for systems as diverse as coral reefs, mangroves and tidal flats. While restoration is popular because it promises positive outcomes and a return to something approaching unimpacted condition and functioning, it involves substantial public and private investment, both for the initial restoration activity and for on-going maintenance of the restored asset. This investment often affords one big chance to get things right before irretrievable damage is done. As a result, precise, well considered and accountable decision-making is needed to determine the specific focus for restoration, the scale of restoration, the location for deploying restoration activities, and indeed whether or not restoration is necessary or even possible. We explore the environmental/ecological considerations and constraints governing optimal decisions about the nature, location and prioritisation of restoration activities in marine ecosystems, and in particular the constraints on achieving understanding of possible futures and the likelihood of achieving them. We conclude that action must be informed by a context-specific understanding of the historical situation, the current situation, the constraints on change, the range of potential outcome scenarios, and the potential futures envisioned.
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Affiliation(s)
- M Sheaves
- Marine Data Technology Hub, College of Science and Engineering, James Cook University, Queensland 4811, Australia.
| | - N J Waltham
- Marine Data Technology Hub, College of Science and Engineering, James Cook University, Queensland 4811, Australia; Centre for Tropical Water and Aquatic Ecosystem Research (TropWATER), College of Science and Engineering, James Cook University, Queensland 4811, Australia
| | - C Benham
- School of Earth and Environmental Sciences, The University of Queensland, St Lucia, Queensland 4067, Australia
| | - M Bradley
- Marine Data Technology Hub, College of Science and Engineering, James Cook University, Queensland 4811, Australia
| | - C Mattone
- Marine Data Technology Hub, College of Science and Engineering, James Cook University, Queensland 4811, Australia
| | - A Diedrich
- Centre for Sustainable Tropical Fisheries and Aquaculture College of Science and Engineering, James Cook University, Queensland 4811, Australia
| | - J Sheaves
- Marine Data Technology Hub, College of Science and Engineering, James Cook University, Queensland 4811, Australia
| | - A Sheaves
- Marine Data Technology Hub, College of Science and Engineering, James Cook University, Queensland 4811, Australia
| | - S Hernandez
- Marine Data Technology Hub, College of Science and Engineering, James Cook University, Queensland 4811, Australia
| | - P Dale
- School of Environment and Science, Environmental Futures Research Institute, Griffith University, Brisbane, Queensland 4011, Australia
| | - Z Banhalmi-Zakar
- Centre for Sustainable Tropical Fisheries and Aquaculture College of Science and Engineering, James Cook University, Queensland 4811, Australia
| | - M Newlands
- College of Arts, Society and Education, James Cook University, Queensland 4811, Australia
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Deitch MJ, Gancel HN, Croteau AC, Caffrey JM, Scheffel W, Underwood B, Muller JW, Boudreau D, Cantrell CG, Posner MJ, Bibza J, McDowell A, Albrecht B. Adaptive management as a foundational framework for developing collaborative estuary management programs. J Environ Manage 2021; 295:113107. [PMID: 34182337 DOI: 10.1016/j.jenvman.2021.113107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 05/27/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
Collaborative nonregulatory programs can benefit the long-term sustainability of environmental resources. Such programs benefit from extensive planning and assessment relative to ecological systems as well as public participation. While many programs use adaptive management as a guiding programmatic framework, few programs successfully integrate social and human context into their adaptive management frameworks. While this adaptive governance framework can be successful, many potential challenges arise when incorporating public stakeholders into the adaptive management framework. To reduce those challenges, programs need participation from diverse stakeholder groups that represent multiple communities of interest, place, and identity. The participatory process benefits from a diverse group of stakeholders and can result in successful management of environmental resources. We highlight the participatory co-management process of three newly developing nonregulatory programs that are modeled after the United States EPA's National Estuary Program in the Perdido and Pensacola Bay systems, Choctawhatchee Bay, and the St. Andrew and St. Joseph Bay systems (Florida USA). This case study illustrates how collaborative nonregulatory programs can be implemented not only in the United States, but also in other regions of the world.
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Affiliation(s)
- Matthew J Deitch
- Soil and Water Sciences Department, University of Florida IFAS West Florida Research and Education Center, Milton, FL, United States.
| | - Haley N Gancel
- Soil and Water Sciences Department, University of Florida IFAS West Florida Research and Education Center, Milton, FL, United States.
| | - Amanda C Croteau
- Center for Environmental Diagnostics and Bioremediation, University of West Florida, Pensacola, FL, United States.
| | - Jane M Caffrey
- Center for Environmental Diagnostics and Bioremediation, University of West Florida, Pensacola, FL, United States.
| | - Whitney Scheffel
- Pensacola and Perdido Bay Estuary Program, Pensacola, FL, United States.
| | - Brian Underwood
- Choctawhatchee Bay Estuary Coalition, Niceville, FL, United States.
| | - James W Muller
- County Board of County Commissioners, Bay County, FL, United States.
| | - Darryl Boudreau
- Northwest Florida Water Management District, Havana, FL, United States.
| | | | - Matthew J Posner
- Pensacola and Perdido Bay Estuary Program, Pensacola, FL, United States
| | - Jessica Bibza
- National Wildlife Federation, St. Petersburg, FL, United States.
| | - Alison McDowell
- Choctawhatchee Basin Alliance, Northwest Florida State College, Niceville, FL, United States.
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Webster AB, Ganswindt A, Small C, Rossouw R. Optimised ICP-MS quantification method for using animal faeces as a measure of protected area ecosystem health. MethodsX 2021; 8:101441. [PMID: 34430330 PMCID: PMC8374655 DOI: 10.1016/j.mex.2021.101441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/02/2021] [Indexed: 12/31/2022] Open
Abstract
Pollution is a key threat to biodiversity and ecosystem health within protected areas. Using a non-invasive, multi-matrix approach, sediment, vegetation and faecal material from lion (Panthera leo) and giraffe (Giraffa camelopardalis) were collected and assessed for the simultaneous quantification of 20 trace elements using an optimised method for Inductively Coupled Plasma--Mass Spectrometry (ICP-MS). Method Linearity was confirmed over an analytical range of 0.1-50 mg/kg for aluminium (Al) and iron (Fe); 0.4-400 µg/kg for vanadium (V), cobalt (Co), molybdenum (Mo), and cadmium (Cd); 0.5-5 µg/kg for mercury (Hg); and 1-1 000 µg/kg for elements arsenic (As), boron (B), barium (Ba), chromium (Cr), copper (Cu), manganese (Mn), nickel (Ni), lead (Pb), antimony (Sb), selenium (Se), tin (Sn), strontium (Sr) and zinc (Zn). Coefficient of determination (R2) was above 0.99 for all elements. Accuracy (% recovery) and precision (% RSD) of replicate measurements for certified reference material controls fell within 20% of expected value at lower concentrations and 15% at higher concentrations for all elements except Al. Results for instrument and method limit of detections (LOD), method limit of quantification (LOQ) and expanded uncertainty were satisfactory. Preliminary data indicate As, Cd, Cr, Cu, Hg, Ni, Pb, Se, and Zn were present in all matrices evaluated. This raises concerns regarding the combined action of multiple elements at concentrations that can adversely affect ecosystem and wildlife integrity.•Sample quantity is reduced due to the power and sensitivity of ICP-MS.•The optimised method is capable of detecting differences in trace element concentrations over large orders of magnitude in animal faeces containing different amounts of organic content.•The method can be applied to the quantification of essential and potentially toxic elements in faeces across a wide range of terrestrial species.
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Affiliation(s)
- Andrea B Webster
- Mammal Research Institute, Department of Zoology and Entomology, University of Pretoria, Lynwood Road, Hatfield, Pretoria, 0083, South Africa
| | - Andre Ganswindt
- Mammal Research Institute, Department of Zoology and Entomology, University of Pretoria, Lynwood Road, Hatfield, Pretoria, 0083, South Africa
| | - Charney Small
- Central Analyticl Facilities, ICP-MS Laboratory, University of Stellenbosch, Cnr Ryneveld and Merriman Street, Stellenbosch, 7600, South Africa
| | - Riana Rossouw
- Central Analyticl Facilities, ICP-MS Laboratory, University of Stellenbosch, Cnr Ryneveld and Merriman Street, Stellenbosch, 7600, South Africa
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Jat SL, Suby SB, Parihar CM, Gambhir G, Kumar N, Rakshit S. Microbiome for sustainable agriculture: a review with special reference to the corn production system. Arch Microbiol 2021; 203:2771-2793. [PMID: 33884458 DOI: 10.1007/s00203-021-02320-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 04/02/2021] [Accepted: 04/05/2021] [Indexed: 10/21/2022]
Abstract
Microbial diversity formed by ages of evolution in soils plays an important role in sustainability of crop production by enriching soil and alleviating biotic and abiotic stresses. This diversity is as an essential part of the agro-ecosystems, which is being pushed to edges by pumping agrochemicals and constant soil disturbances. Consequently, efficiency of cropping system has been decreasing, aggravated further by the increased incidence of abiotic stresses due to changes in climatic patterns. Thus, the sustainability of agriculture is at stake. Understanding the microbiota inhabiting phyllosphere, endosphere, spermosphere, rhizosphere, and non-rhizosphere, and its utilization could be a sustainable crop production strategy. This review explores the available information on diversity of beneficial microbes in agricultural ecosystem and synthesizes their commercial uses in agriculture. Microbiota in agro-ecosystem works by nutrient acquisition, enhancing nutrient availability, water uptake, and amelioration of abiotic and abiotic stresses. External application of such beneficial microbiota or microbial consortia helps in boosting plant growth and provides resistance to drought, salinity, heavy metal, high-temperature and radiation stress in various crop plants. These have been instrumental in enhancing tolerance to diseases, insect pest and nematodes in various cropping system. However, studies on the microbiome in revolutionary production systems like conservation agriculture and protected cultivation, which use lesser agrochemicals, are limited and if exploited can provide valuable input in sustainable agriculture production.
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Affiliation(s)
- S L Jat
- ICAR-Indian Institute of Maize Research, Ludhiana, India.
| | - S B Suby
- ICAR-Indian Institute of Maize Research, Ludhiana, India
| | - C M Parihar
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | | | - Naveen Kumar
- ICAR-Indian Institute of Maize Research, Ludhiana, India
| | - Sujay Rakshit
- ICAR-Indian Institute of Maize Research, Ludhiana, India.
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Zhang Y, Leung JYS, Zhang Y, Cai Y, Zhang Z, Li K. Agricultural activities compromise ecosystem health and functioning of rivers: Insights from multivariate and multimetric analyses of macroinvertebrate assemblages. Environ Pollut 2021; 275:116655. [PMID: 33618216 DOI: 10.1016/j.envpol.2021.116655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 01/26/2021] [Accepted: 01/31/2021] [Indexed: 06/12/2023]
Abstract
Agricultural activities often lead to nutrient enrichment and habitat modification in rivers, possibly altering macroinvertebrate assemblages and hence ecosystem functioning. For the sake of environmental management and conservation, therefore, assessing the impacts of agricultural activities becomes indispensable, especially when these activities are predicted to be intensified in the future. In this study, the plain river network in the Lake Chaohu Basin was chosen to examine how agricultural activities influence the functioning of rivers by assessing land use, water quality, habitat condition and macroinvertebrate assemblages, followed by calculating the macroinvertebrate-based multimetric index (MMI) to indicate overall ecosystem health of the rivers. We found that agricultural activities lowered the diversity of macroinvertebrates (e.g. total number of taxa and Simpson index) primarily due to elevated ammonium concentrations in water and reduced microhabitat types, thereby impairing the habitat integrity and nutrient cycling of rivers. The macroinvertebrate-based MMI was positively correlated with increasing habitat quality but negatively with increasing nutrient concentrations, suggesting its high reliability for indicating the impacts of agricultural activities, which was further substantiated by classification and regression tree (CART) analysis. We recommend analyzing macroinvertebrate assemblages using both multivariate and multimetric approaches to offer a more comprehensive evaluation of the impacts of agricultural activities on ecosystem health. Some environmental (CODMn, NH4+-N and PO43--P) and biological parameters (total number of taxa), however, can be used as good proxies for MMI, when time and resources for gathering information to develop MMI are limited.
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Affiliation(s)
- You Zhang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, PR China
| | - Jonathan Y S Leung
- Southern Seas Ecology Laboratories, The Environment Institute, School of Biological Sciences, The University of Adelaide, South Australia, 5005, Australia; Faculty of Materials and Energy, Southwest University, Chongqing, 400715, PR China
| | - Ying Zhang
- Water Resources Planning Bureau of Jiangsu Province, Nanjing, 210029, PR China
| | - Yongjiu Cai
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, PR China
| | - Zhiming Zhang
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, PR China
| | - Kuanyi Li
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, PR China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing, 100049, PR China.
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You Q, Yang W, Jian M, Hu Q. A comparison of metric scoring and health status classification methods to evaluate benthic macroinvertebrate-based index of biotic integrity performance in Poyang Lake wetland. Sci Total Environ 2021; 761:144112. [PMID: 33360123 DOI: 10.1016/j.scitotenv.2020.144112] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/08/2020] [Accepted: 11/22/2020] [Indexed: 06/12/2023]
Abstract
Methods for metric scoring and health status classification in development of index of biotic integrity (IBI) vary considerably across published studies. The difference between ecosystem health assessment results from these alternative methods for scoring and classification has rarely been studied systematically. Poyang Lake in China has experienced severe degradation over recent decades. Here, we aimed to develop a benthic macroinvertebrate-based index of biotic integrity (B-IBI) to assess the wetland health of Poyang Lake, and to evaluate the difference in assessment results using different methods of scoring and classification. Data on benthic macroinvertebrate assemblages, water quality and human-induced disturbances were collected at 30 sampling sites. Forty-nine attributes of macroinvertebrate assemblages were tested, and only the attributes that were significantly correlated with disturbance gradients or showed strong discriminatory power between reference and impaired sites were selected as the B-IBI metrics. Two scoring, two thresholding and three classification methods were applied for metric scoring and health status classification. Five assemblage attributes, i.e. the number of taxa, Shannon-Wiener diversity index, % Diptera, ASPT index and the number of predator taxa, were selected as the B-IBI metrics. Health status assessments varied considerably among the various metric scoring and classification methods, suggesting the importance of standardizing the methods for scoring and classification to be able to compare assessment results across different areas and time periods. The wetland health of Poyang Lake was rated as fair, which indicates that the wetland has experienced anthropogenic pressure and substantial changes in macroinvertebrate assemblage structure. Further, sample sites adjacent to tributary river mouths were in poor or very poor condition, suggesting that pollutant input by rivers has strong negative impacts on wetland health. Effective management of the entire lake basin and its watershed is therefore important for the wetland conservation.
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Affiliation(s)
- Qinghui You
- Key Laboratory of Poyang Lake Wetland and Watershed Research (Jiangxi Normal University), Ministry of Education, Nanchang 330022, China; School of Life Sciences, Jiangxi Normal University, Nanchang 330022, China.
| | - Wenjing Yang
- Key Laboratory of Poyang Lake Wetland and Watershed Research (Jiangxi Normal University), Ministry of Education, Nanchang 330022, China; School of Geography and Environment, Jiangxi Normal University, Nanchang 330022, China.
| | - Minfei Jian
- Key Laboratory of Poyang Lake Wetland and Watershed Research (Jiangxi Normal University), Ministry of Education, Nanchang 330022, China
| | - Qiwu Hu
- School of Geography and Environment, Jiangxi Normal University, Nanchang 330022, China
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Wang J, Lu H, Lin Y, Campbell DE, Cai H, Ren H. Dynamics of community structure and bio-thermodynamic health of soil organisms following subtropical forest succession. J Environ Manage 2021; 280:111647. [PMID: 33243623 DOI: 10.1016/j.jenvman.2020.111647] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 10/16/2020] [Accepted: 11/03/2020] [Indexed: 06/11/2023]
Abstract
Soil organisms play essential roles in maintaining multiple ecosystem processes, but our understanding of the dynamics of these communities during forest succession remains limited. In this study, the dynamics of soil organism communities were measured along a 3-step succession sequence of subtropical forests (i.e., a conifer forest, CF; a mixed conifer and broad-leaved forest, MF; and a monsoon evergreen broad-leaved forest, BF). The eco-exergy evaluation method was used as a complement to the classic community structure index system to reveal the holistic dynamics of the bio-thermodynamic health of soil organism communities in a forest succession series. Association between the self-organization of soil organisms, soil properties, and plant factors were explored through redundancy analyses (RDA). The results indicated that the biomass of soil microbes progressively increased in the dry season, from 0.75 g m-2 in CF to 1.75 g m-2 in BF. Microbial eco-exergy showed a similar pattern, while the community structure and the specific eco-exergy remained constant. Different trends for the seasons were observed for the soil fauna community, where the community biomass increased from 0.72 g m-2 to over 1.97 g m-2 in the dry season, but decreased from 3.94 g m-2 to 2.36 g m-2 in the wet season. Faunal eco-exergies followed a similar pattern. Consequently, the average annual biomass of the soil faunal community remained constant (2.17-2.39 g m-2) along the forest succession sequence, while the significant seasonal differences in both faunal biomass and eco-exergy observed at the early successional stage (CF) were insignificant in the middle and late forest successional stages (MF and BF). Both the dynamics of soil microbes and soil fauna were tightly correlated with tree biomass and with soil physicochemical properties, especially soil pH, moisture, total nitrogen, nitrate nitrogen, and organic matter content.
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Affiliation(s)
- Jun Wang
- CAS Engineering Laboratory for Vegetation Ecosystem Restoration on Islands and Coastal Zones / Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
| | - Hongfang Lu
- CAS Engineering Laboratory for Vegetation Ecosystem Restoration on Islands and Coastal Zones / Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
| | - Yongbiao Lin
- CAS Engineering Laboratory for Vegetation Ecosystem Restoration on Islands and Coastal Zones / Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
| | - Daniel E Campbell
- University of Rhode Island, Department of Mechanical, Industrial and Systems Engineering, 2 East Alumni Avenue, Kingston, RI, 02881, USA.
| | - Hongyue Cai
- CAS Engineering Laboratory for Vegetation Ecosystem Restoration on Islands and Coastal Zones / Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
| | - Hai Ren
- CAS Engineering Laboratory for Vegetation Ecosystem Restoration on Islands and Coastal Zones / Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
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Lone SA, Bhat SU, Hamid A, Bhat FA, Kumar A. Quality assessment of springs for drinking water in the Himalaya of South Kashmir, India. Environ Sci Pollut Res Int 2021; 28:2279-2300. [PMID: 32880045 DOI: 10.1007/s11356-020-10513-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 08/12/2020] [Indexed: 06/11/2023]
Abstract
The present study describes the water quality scenario of some freshwater springs of South Kashmir during the two-year period (2013-2015) because of rising pollution risks endangering water resources globally. The accessibility to quality drinking water has become a challenge and is receiving renewed attention. A total of 96 samples from twelve springs were collected and analyzed for major drinking water quality parameters. Piper trilinear and Durov diagram depicted dominance of Ca-Mg-HCO3 hydrochemical facies and simple dissolution and mixing process. Water quality was falling in very good to excellent class and well within the desirable limits of WHO thereby indicating huge potential for meeting rising drinking water demand. The principal component analysis (PCA) revealed the generation of three components (PC1, PC2, and PC3) with higher eigenvalues of 3 or more (3-6) explaining 40, 21, and 17% of the overall variance in water quality data sets, respectively. The components obtained from PCA indicate that the parameters responsible for variations are mainly related to discharge, temperature, and dissolved oxygen (natural), nutrients (agriculture), and cation and anions (lithology). The results suggest that the hydrochemistry of springs is jointly controlled by lithology and anthropogenic inputs.
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Affiliation(s)
- Showkat Ahmad Lone
- Department of Environmental Science, School of Earth and Environmental Sciences, University of Kashmir, Srinagar, Jammu & Kashmir, 190006, India
| | - Sami Ullah Bhat
- Department of Environmental Science, School of Earth and Environmental Sciences, University of Kashmir, Srinagar, Jammu & Kashmir, 190006, India.
| | - Aadil Hamid
- Department of Environmental Science, School of Earth and Environmental Sciences, University of Kashmir, Srinagar, Jammu & Kashmir, 190006, India
| | - Farooz Ahmad Bhat
- Faculty of Fisheries, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Srinagar, Jammu and Kashmir, 190025, India
| | - Amit Kumar
- School of Hydrology and Water Resources, Nanjing University of Information Science & Technology, Nanjing, Jiangsu Province, 210044, People's Republic of China
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