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Li X, Liu X, Huang Y, Zhang Y, Li J. Seasonal impact of constructed wetlands on nitrogen and phosphorus in sediments of flood control lakes with pollution assessment. J Environ Qual 2024. [PMID: 38595076 DOI: 10.1002/jeq2.20561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 03/18/2024] [Indexed: 04/11/2024]
Abstract
The primary drivers of eutrophication in lakes following the reduction of external nutrient inputs are the release of N and P from sediments. Constructed wetlands play a pivotal role in ameliorating N, P, and other biogenic element levels. However, the presence of large vegetation in these wetlands also substantially contributes to nutrient accumulation in sediments, a phenomenon influenced by seasonal variations. In this study, a typical constructed wetland was selected as the research site. The research aimed to analyze the forms of N and P in sediments during both summer and winter. Simultaneously, a comprehensive pollution assessment and analysis were conducted within the study area. The findings indicate that elevated summer temperatures, together with the presence of wetland vegetation, promote the release of N through the nitrification process. Additionally, seasonal variations exert a significant impact on the distribution of P storage. Furthermore, the role of constructed wetlands in the absorption and release of N and P is primarily controlled by the influence of organic matter on nitrate-nitrogen, nitrite-nitrogen, and available phosphorus, and is also subject to seasonal fluctuations. In summary, under the comprehensive influence of constructed wetlands, vegetation types, and seasons, sediments within the lake generally exhibit a state of mild or moderate pollution. Therefore, targeted measures should be adopted to optimally adjust vegetation types, and human intervention is necessary, involving timely sediment harvesting during the summer to reduce N and P loads, and enhancing sediment adsorption and retention capacity for N and P during the winter.
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Affiliation(s)
- Xiao Li
- ART School, Jiangsu University, Zhenjiang, China
- Institute of International Education, New Era University College, Kajang, Malaysia
| | - Xinlin Liu
- Jingjiang College, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Yang Huang
- ART School, Jiangsu University, Zhenjiang, China
| | - Yulong Zhang
- Jingjiang College, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Jian Li
- Jingjiang College, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
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Li C, Li Y, Xu Z, Zhong S, Cheng H, Liu J, Yu Y, Wang C, Du D. The effects of co-invasion by three Asteraceae invasive alien species on plant taxonomic and functional diversity in herbaceous ruderal communities in southern Jiangsu, China. Biol Futur 2024:10.1007/s42977-024-00202-w. [PMID: 38300414 DOI: 10.1007/s42977-024-00202-w] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 01/04/2024] [Indexed: 02/02/2024]
Abstract
Invasive alien species can affect plant taxonomic and functional diversity. Multiple invasive alien species can co-invade the same plant community. However, the effects of such co-invasion on plant taxonomic and functional diversity are currently unclear. Our study aimed to estimate the effects of co-invasion by three Asteraceae invasive alien species (i.e., Conyza canadensis (L.) Cronquist, Conyza sumatrensis (S.F. Blake) Pruski and G. Sancho, and Solidago canadensis L.) on plant taxonomic and functional diversity in herbaceous ruderal communities in southern Jiangsu, China. The effects of these three invasive alien species under seven invasion combinations (including invasion by one invasive alien species, co-invasion by two invasive alien species, and co-invasion by these three invasive alien species) on plant taxonomic and functional diversity were investigated in a comparative field study of herbaceous ruderal communities. Niche differentiation mediated the functional divergence between these three invasive alien species and natives under all invasion combinations. These three invasive alien species significantly increased plant taxonomic diversity (especially plant diversity and richness) and plant functional diversity (especially Rao's quadratic entropies) under all invasion combinations. The relative abundance of invasive alien species was significantly positively associated with plant functional diversity (especially community-weighted mean trait values and Rao's quadratic entropy). The number of invasive alien species was significantly positively associated with plant taxonomic diversity (especially plant diversity and richness) and plant functional diversity (especially Rao's quadratic entropies). Thus, co-invasion by these three invasive alien species may synergistically increase plant taxonomic diversity (especially plant diversity and richness) and functional diversity (especially Rao's quadratic entropies).
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Affiliation(s)
- Chuang Li
- Institute of Environment and Ecology and School of Environment and Safety Engineering and School of Emergency Management, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Yue Li
- Institute of Environment and Ecology and School of Environment and Safety Engineering and School of Emergency Management, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Zhelun Xu
- Institute of Environment and Ecology and School of Environment and Safety Engineering and School of Emergency Management, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Shanshan Zhong
- Institute of Environment and Ecology and School of Environment and Safety Engineering and School of Emergency Management, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Huiyuan Cheng
- Institute of Environment and Ecology and School of Environment and Safety Engineering and School of Emergency Management, Jiangsu University, Zhenjiang, 212013, People's Republic of China
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Jun Liu
- Zhenjiang Environmental Monitoring Center of Jiangsu Province, Zhenjiang, 212009, People's Republic of China
| | - Youli Yu
- Institute of Environment and Ecology and School of Environment and Safety Engineering and School of Emergency Management, Jiangsu University, Zhenjiang, 212013, People's Republic of China
| | - Congyan Wang
- Institute of Environment and Ecology and School of Environment and Safety Engineering and School of Emergency Management, Jiangsu University, Zhenjiang, 212013, People's Republic of China.
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China.
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, 215009, People's Republic of China.
| | - Daolin Du
- Jingjiang College and Institute of Enviroment and Ecology and School of Emergency Management and School of Environment and Safety Engineering and School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, People's Republic of China.
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Khattak WA, Sun J, Hameed R, Zaman F, Abbas A, Khan KA, Elboughdiri N, Akbar R, He F, Ullah MW, Al-Andal A, Du D. Unveiling the resistance of native weed communities: insights for managing invasive weed species in disturbed environments. Biol Rev Camb Philos Soc 2024. [PMID: 38174626 DOI: 10.1111/brv.13043] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 12/10/2023] [Accepted: 12/14/2023] [Indexed: 01/05/2024]
Abstract
Weed communities influence the dynamics of ecosystems, particularly in disturbed environments where anthropogenic activities often result in higher pollution. Understanding the dynamics existing between native weed communities and invasive species in disturbed environments is crucial for effective management and normal ecosystem functioning. Recognising the potential resistance of native weed communities to invasion in disturbed environments can help identify suitable native plants for restoration operations. This review aims to investigate the adaptations exhibited by native and non-native weeds that may affect invasions within disturbed environments. Factors such as ecological characteristics, altered soil conditions, and adaptations of native weed communities that potentially confer a competitive advantage relative to non-native or invasive weeds in disturbed environments are analysed. Moreover, the roles of biotic interactions such as competition, mutualistic relationships, and allelopathy in shaping the invasion resistance of native weed communities are described. Emphasis is given to the consideration of the resistance of native weeds as a key factor in invasion dynamics that provides insights for conservation and restoration efforts in disturbed environments. Additionally, this review underscores the need for further research to unravel the underlying mechanisms and to devise targeted management strategies. These strategies aim to promote the resistance of native weed communities and mitigate the negative effects of invasive weed species in disturbed environments. By delving deeper into these insights, we can gain an understanding of the ecological dynamics within disturbed ecosystems and develop valuable insights for the management of invasive species, and to restore long-term ecosystem sustainability.
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Affiliation(s)
- Wajid Ali Khattak
- School of Emergency Management, Jiangsu University, No. 301, Xuefu Road, PO Box 212013, Zhenjiang City, Jiangsu Province, China
- School of the Environment and Safety Engineering, Jiangsu University, No. 301, Xuefu Road, PO Box 212013, Zhenjiang City, Jiangsu Province, China
| | - Jianfan Sun
- School of Emergency Management, Jiangsu University, No. 301, Xuefu Road, PO Box 212013, Zhenjiang City, Jiangsu Province, China
- School of the Environment and Safety Engineering, Jiangsu University, No. 301, Xuefu Road, PO Box 212013, Zhenjiang City, Jiangsu Province, China
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, PO Box 215009, Suzhou City, Jiangsu Province, P.R. China
| | - Rashida Hameed
- School of the Environment and Safety Engineering, Jiangsu University, No. 301, Xuefu Road, PO Box 212013, Zhenjiang City, Jiangsu Province, China
| | - Fawad Zaman
- Key Laboratory of National Forestry and Grassland Administration on Forest Ecosystem Protection and Restoration of Poyang Lake Watershed, Jiangxi Agricultural University, PO Box 330045, Nanchang City, Jiangxi Province, P.R. China
- Jiangxi Provincial Key Laboratory of Silviculture, College of Forestry, Jiangxi Agricultural University, PO Box 330045, Nanchang City, Jiangxi Province, P.R. China
| | - Adeel Abbas
- School of the Environment and Safety Engineering, Jiangsu University, No. 301, Xuefu Road, PO Box 212013, Zhenjiang City, Jiangsu Province, China
| | - Khalid Ali Khan
- Applied College, Center of Bee Research and its Products, Unit of Bee Research and Honey Production, and Research Center for Advanced Materials Science (RCAMS), King Khalid University, PO Box 9004, Abha, 61413, Saudi Arabia
| | - Noureddine Elboughdiri
- Chemical Engineering Department, College of Engineering, University of Ha'il, PO Box 2440, Ha'il, 81441, Saudi Arabia
- Chemical Engineering Process Department, National School of Engineers Gabes, University of Gabes, 6029, Gabes, Tunisia
| | - Rasheed Akbar
- School of the Environment and Safety Engineering, Jiangsu University, No. 301, Xuefu Road, PO Box 212013, Zhenjiang City, Jiangsu Province, China
- Department of Entomology, The University of Haripur, PO Box 22620, Haripur, Khyber Pakhtunkhwa, Pakistan
| | - Feng He
- School of the Environment and Safety Engineering, Jiangsu University, No. 301, Xuefu Road, PO Box 212013, Zhenjiang City, Jiangsu Province, China
| | - Muhammad Wajid Ullah
- Biofuels Institute, School of The Environmental and Safety Engineering, Jiangsu University, No. 301, Xuefu Road, PO Box 212013, Zhenjiang City, Jiangsu Province, China
| | - Abeer Al-Andal
- Department of Biology, College of Science, King Khalid University, PO Box 960, Abha, 61413, Saudi Arabia
| | - Daolin Du
- School of the Environment and Safety Engineering, Jiangsu University, No. 301, Xuefu Road, PO Box 212013, Zhenjiang City, Jiangsu Province, China
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Xu Z, Zhong S, Li Y, Li C, Liu J, Xu Z, Zhu M, Wang C, Du D. The co-phytotoxicity of two Asteraceae invasive plants Solidago canadensis L. and Bidens pilosa L. with different invasion degrees. Ecotoxicology 2023; 32:1221-1232. [PMID: 38032393 DOI: 10.1007/s10646-023-02716-w] [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] [Accepted: 11/15/2023] [Indexed: 12/01/2023]
Abstract
The phytotoxicity of invasive plants (IPS) has been identified as one of the main factors influencing their invasion success. The invasion of IPS can occur to varying degrees in the habitats. Two IPS can invade one habitat. This study aimed to evaluate the mono- and co-phytotoxicity of two Asteraceae IPS Solidago canadensis L. and Bidens pilosa L. with different invasion degrees (including light invasion (relative abundance <50%) and heavy invasion (relative abundance ≥50%)) on the horticultural Asteraceae species Lactuca sativa L., through a hydroponic experiment conducted on 9 cm Petri dishes. Leaf extracts of the two IPS can cause significant mono- and co-phytotoxicity. The mono- and co-phytotoxicity of the two IPS were concentration-dependent. The mono-phytotoxicity of S. canadensis was significantly increased with increasing invasion degree, but the opposite was true for the mono-phytotoxicity of B. pilosa. Leaf extracts of B. pilosa with light invasion caused stronger phytotoxicity than those of S. canadensis with light invasion. There may be an antagonistic effect for the co-phytotoxicity caused by mixed leaf extracts of the two IPS compared with those of either S. canadensis or B. pilosa. The phytotoxicity of the two IPS on the growth performance of neighboring plants may play a more important role in their mono-invasion than in their co-invasion. The phytotoxicity appeared to affect the growth performance of S. canadensis individuals more significantly when the invasion was heavy, while the growth performance of B. pilosa individuals seemed to be more influenced by phytotoxicity when the invasion was light. Consequently, the concentration of leaf extracts of IPS, the invasion degree of IPS, the species identity of IPS, and the species number of IPS modulated the mono- and co-phytotoxicity of the two IPS.
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Affiliation(s)
- Zhelun Xu
- School of Emergency Management, Jiangsu University, Zhenjiang, 212013, China
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
- Jiangsu Province Engineering Research Center of Green Technology and Contigency Management for Emerging Polluants, Jiangsu University, Zhenjiang, 212013, China
| | - Shanshan Zhong
- School of Emergency Management, Jiangsu University, Zhenjiang, 212013, China
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
- Jiangsu Province Engineering Research Center of Green Technology and Contigency Management for Emerging Polluants, Jiangsu University, Zhenjiang, 212013, China
| | - Yue Li
- School of Emergency Management, Jiangsu University, Zhenjiang, 212013, China
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
- Jiangsu Province Engineering Research Center of Green Technology and Contigency Management for Emerging Polluants, Jiangsu University, Zhenjiang, 212013, China
| | - Chuang Li
- School of Emergency Management, Jiangsu University, Zhenjiang, 212013, China
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
- Jiangsu Province Engineering Research Center of Green Technology and Contigency Management for Emerging Polluants, Jiangsu University, Zhenjiang, 212013, China
| | - Jun Liu
- Zhenjiang Environmental Monitoring Center of Jiangsu Province, Zhenjiang, 212009, China
| | - Zhongyi Xu
- School of Emergency Management, Jiangsu University, Zhenjiang, 212013, China
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
- Jiangsu Province Engineering Research Center of Green Technology and Contigency Management for Emerging Polluants, Jiangsu University, Zhenjiang, 212013, China
| | - Mawei Zhu
- School of Emergency Management, Jiangsu University, Zhenjiang, 212013, China
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
- Jiangsu Province Engineering Research Center of Green Technology and Contigency Management for Emerging Polluants, Jiangsu University, Zhenjiang, 212013, China
| | - Congyan Wang
- School of Emergency Management, Jiangsu University, Zhenjiang, 212013, China.
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China.
- Jiangsu Province Engineering Research Center of Green Technology and Contigency Management for Emerging Polluants, Jiangsu University, Zhenjiang, 212013, China.
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, 215009, China.
| | - Daolin Du
- School of Emergency Management, Jiangsu University, Zhenjiang, 212013, China.
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China.
- Jiangsu Province Engineering Research Center of Green Technology and Contigency Management for Emerging Polluants, Jiangsu University, Zhenjiang, 212013, China.
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, 215009, China.
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Khattak WA, He J, Sun J, Ali I, Bilal W, Zahoor, Khan KA, Wang Y, Zhou Z. Foliar melatonin ameliorates drought-induced alterations in enzyme activities of sugar and nitrogen metabolisms in cotton leaves. Physiol Plant 2023; 175:e14011. [PMID: 37882261 DOI: 10.1111/ppl.14011] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 07/28/2023] [Accepted: 08/18/2023] [Indexed: 10/27/2023]
Abstract
Sugar and nitrogen metabolisms help plants maintain cellular homeostasis, stress tolerance, and sustainable growth in drought conditions. Melatonin, a potent antioxidant and signaling molecule, appears to mitigate the negative impacts of drought on plants. This study aimed to investigate the potential role of foliar-applied melatonin in ameliorating drought-induced alterations in leaf sugar and nitrogen metabolisms' enzyme activities during cotton flowering and boll formation. To date, no study has examined drought-induced sugar and nitrogen metabolisms' enzyme activity changes in cotton treated with foliar melatonin. Drought levels (FC1 = 75 ± 5%, FC2 = 60 ± 5%, and FC3 = 45 ± 5%) were maintained between 3 and 35 days after flowering (DAF), and melatonin (M) concentrations (0, 25, 50, and 100 μmol L-1 ) were applied at 3 and 21 DAF in a completely randomized design. M100 concentrations at low FC levels significantly enhanced leaf sugar and N-metabolic enzyme activities, such as sucrose synthase (65.56%) and glutamine synthetase (55.24%), compared to plants not treated with melatonin; peaking between 7 and 21 DAF and declining gradually with crop growth. Moreover, the M100 concentrations at all FC levels, particularly FC3, significantly increased the relative expression of GhSusB, GhSusC, SPS1, and SPS3 genes, indicating that melatonin improves leaf sugar and N-metabolism enzymatic activities under drought stress. Therefore, applying M100 concentrations to cotton foliage under FC3 conditions during reproductive stages improves leaf water status, sugar, and N-metabolism enzyme activities, demonstrating melatonin's potent anti-stress, osmoregulatory, and growth-promoting properties in overcoming drought stress in cotton crops. Future research into the molecular mechanisms of melatonin-mediated sugar and nitrogen metabolism enzyme activities in cotton leaves may lead to biotechnological methods to improve drought resilience in cotton and other crops.
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Affiliation(s)
- Wajid Ali Khattak
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
| | - Jiaqi He
- College of Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Jianfan Sun
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, China
| | - Iftikhar Ali
- Department of Agronomy, University of Agriculture, Faisalabad, Pakistan
| | - Wasim Bilal
- Agricultural Research Institute, Mingora, Khyber Pakhtunkhwa, Pakistan
| | - Zahoor
- Biofuels Institute, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang, People's Republic of China
| | - Khalid Ali Khan
- Applied College, Mahala Campus and the Unit of Bee Research and Honey Production/Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
| | - Youhua Wang
- College of Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
- Jiangsu Collaborative Innovation Center for Modern Crop Production (JCIC-MCP), Nanjing Agricultural University, Nanjing, China
| | - Zhiguo Zhou
- College of Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
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