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Liu Y, Guo W, Wei C, Huang H, Nan F, Liu X, Liu Q, Lv J, Feng J, Xie S. Rainfall-induced changes in aquatic microbial communities and stability of dissolved organic matter: Insight from a Fen river analysis. ENVIRONMENTAL RESEARCH 2024; 246:118107. [PMID: 38181848 DOI: 10.1016/j.envres.2024.118107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 12/25/2023] [Accepted: 01/02/2024] [Indexed: 01/07/2024]
Abstract
Microbial communities are pivotal in aquatic ecosystems, as they affect water quality, energy dynamics, nutrient cycling, and hydrological stability. This study explored the effects of rainfall on hydrological and photosynthetic parameters, microbial composition, and functional gene profiles in the Fen River. Our results demonstrated that rainfall-induced decreases in stream temperature, dissolved oxygen, pH, total phosphorus, chemical oxygen demand, and dissolved organic carbon concentrations. In contrast, rainfall increased total dissolved solids, salinity, and ammonia-nitrogen concentrations. A detailed microbial community structure analysis revealed that Cyanobacteria was the dominant microbial taxon in the Fen River, accounting for approximately 75% and 25% of the microalgal and bacterial communities, respectively. The abundance of Chlorophyta and Bacillariophyta increased by 47.66% and 29.92%, respectively, whereas the relative abundance of Bacteroidetes decreased by 37.55% under rainfall conditions. Stochastic processes predominantly affected the assembly of the bacterial community on rainy days. Functional gene analysis revealed variations in bacterial functions between sunny (Sun) and rainy (Rain) conditions, particularly in genes associated with the carbon cycle. The 3-oxoacyl-[acyl-carrier-protein] reductase gene was more abundant in the Fen River bacterial community. Particular genes involved in metabolism and environmental information processing, including the acetyl-CoA C-acetyltransferase (atoB), enoyl-CoA hydratase (paaF), and branched-chain amino acid transport system gene (livK), which are integral to environmental information processing, were more abundant in Sun than the Rain conditions. In contrast, the phosphate transport system gene, the galactose metabolic gene, and the pyruvate metabolic gene were more abundant in Rain. The excitation-emission matrix analysis with parallel factor analysis identified four fluorescence components (C1-C4) in the river, which were predominantly protein- (C1) and humic-like (C2-C4) substances. Rainfall affected organic matter production and transport, leading to changes in the degradation and stability of dissolved organic matter. Overall, this study offers insight into how rainfall affects aquatic ecosystems.
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Affiliation(s)
- Yang Liu
- Shanxi Key Laboratory for Research and Development of Regional Plants, School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Weinan Guo
- Shanxi Key Laboratory for Research and Development of Regional Plants, School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Caihua Wei
- Shanxi Key Laboratory for Research and Development of Regional Plants, School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Hanjie Huang
- Shanxi Key Laboratory for Research and Development of Regional Plants, School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Fangru Nan
- Shanxi Key Laboratory for Research and Development of Regional Plants, School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Xudong Liu
- Shanxi Key Laboratory for Research and Development of Regional Plants, School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Qi Liu
- Shanxi Key Laboratory for Research and Development of Regional Plants, School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Junping Lv
- Shanxi Key Laboratory for Research and Development of Regional Plants, School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Jia Feng
- Shanxi Key Laboratory for Research and Development of Regional Plants, School of Life Science, Shanxi University, Taiyuan 030006, China
| | - Shulian Xie
- Shanxi Key Laboratory for Research and Development of Regional Plants, School of Life Science, Shanxi University, Taiyuan 030006, China.
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Adame MF, Kelleway J, Krauss KW, Lovelock CE, Adams JB, Trevathan-Tackett SM, Noe G, Jeffrey L, Ronan M, Zann M, Carnell PE, Iram N, Maher DT, Murdiyarso D, Sasmito S, Tran DB, Dargusch P, Kauffman JB, Brophy L. All tidal wetlands are blue carbon ecosystems. Bioscience 2024; 74:253-268. [PMID: 38720908 PMCID: PMC11075650 DOI: 10.1093/biosci/biae007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 01/14/2024] [Accepted: 02/06/2024] [Indexed: 05/12/2024] Open
Abstract
Managing coastal wetlands is one of the most promising activities to reduce atmospheric greenhouse gases, and it also contributes to meeting the United Nations Sustainable Development Goals. One of the options is through blue carbon projects, in which mangroves, saltmarshes, and seagrass are managed to increase carbon sequestration and reduce greenhouse gas emissions. However, other tidal wetlands align with the characteristics of blue carbon. These wetlands are called tidal freshwater wetlands in the United States, supratidal wetlands in Australia, transitional forests in Southeast Asia, and estuarine forests in South Africa. They have similar or larger potential for atmospheric carbon sequestration and emission reductions than the currently considered blue carbon ecosystems and have been highly exploited. In the present article, we suggest that all wetlands directly or indirectly influenced by tides should be considered blue carbon. Their protection and restoration through carbon offsets could reduce emissions while providing multiple cobenefits, including biodiversity.
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Affiliation(s)
- Maria Fernanda Adame
- Australian Rivers Institute, Griffith University, Brisbane, Queensland, Australia
| | - Jeff Kelleway
- University of Wollongong, School of Earth, Atmospheric, and Life Sciences, Wollongong, New South Wales, Australia
| | - Ken W Krauss
- US Geological Survey, Wetland and Aquatic Research Center, Lafayette, Louisiana, United States
| | - Catherine E Lovelock
- School of the Environment The University of Queensland, St Lucia, Queensland, Australia
| | - Janine B Adams
- Nelson Mandela University, Institute for Coastal & Marine Research and Department of Botany, Gqeberha, South Africa
| | - Stacey M Trevathan-Tackett
- Deakin Marine Research and Innovation Centre, School of Life and Environmental Sciences at Deakin University, Melboourne, Victoria, Australia
| | - Greg Noe
- U.S. Geological Survey, Florence Bascom Geoscience Center, Reston, Virginia, United States
| | - Luke Jeffrey
- Faculty of Science and Engineering at Southern Cross University, Lismore, New South Wales, Australia
| | - Mike Ronan
- Department of Environment, Science, and Innovation, Wetlands Team, Queensland Government, Brisbane, Queensland, Australia
| | - Maria Zann
- Department of Environment, Science, and Innovation, Wetlands Team, Queensland Government, Brisbane, Queensland, Australia
| | - Paul E Carnell
- Deakin Marine Research and Innovation Centre, School of Life and Environmental Sciences at Deakin University, Melboourne, Victoria, Australia
| | - Naima Iram
- Australian Rivers Institute, Griffith University, Brisbane, Queensland, Australia
- Centre for Nature-Based Climate Solutions, Faculty of Science at the National University of Singapore, Singapore
| | - Damien T Maher
- Faculty of Science and Engineering at Southern Cross University, Lismore, New South Wales, Australia
| | - Daniel Murdiyarso
- Centre for International Forestry Research, Word Agroforestry, Department of Geophysics and Meteorology at IPB University, Bogor, Indonesia
| | - Sigit Sasmito
- NUS Environmental Research Institute, National University of Singapore, Singapore
| | - Da B Tran
- Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Paul Dargusch
- School of the Environment The University of Queensland, St Lucia, Queensland, Australia
| | - J Boone Kauffman
- Ilahee Sciences International and with the Department of Fisheries, Wildlife, Corvallis, Oregon, United States
- Conservation Sciences at Oregon State University, Corvallis, Oregon, United States
| | - Laura Brophy
- Institute for Applied Ecology and the College of Earth, Ocean, Corvallis Oregon, United States
- Atmospheric Sciences at Oregon State University, Corvallis Oregon, United States
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Song W, Li Y. Tidal flat microbial communities between the Huaihe estuary and Yangtze River estuary. ENVIRONMENTAL RESEARCH 2023; 238:117141. [PMID: 37717808 DOI: 10.1016/j.envres.2023.117141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 09/02/2023] [Accepted: 09/13/2023] [Indexed: 09/19/2023]
Abstract
Tidal flats have important ecological functions and offer great economic value. Using field sampling, numerical simulation, and high-throughput sequencing, the ecological state of typical tidal flats along the eastern coast of China was investigated. The findings demonstrated that the area may be separated into subregions with notable differences in the features of microbial communities due to the variations in water quality and total pollutant discharge of seagoing rivers. With a ratio of 62%, the development of the microbial community revealed that homogenous selection predominated. In general, the formation of microbial communities follows deterministic processes, especially those of environmental selection. The wetland microbial communities are impacted by pollutants discharged into the sea from the Huaihe River and the Yangtze River. The Yangtze River's nitrogen pollutants affected the wetland zone, and denitrification dominated. The study established ecological patterns between the river and the sea and we offer suggestions for managing watersheds and safeguarding the ecology of coastal tidal flats.
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Affiliation(s)
- Weiwei Song
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China; National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing, 210098, China.
| | - Yi Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing, 210098, China; National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing, 210098, China.
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Mayer M, Matthews B, Sandén H, Katzensteiner K, Hagedorn F, Gorfer M, Berger H, Berger TW, Godbold DL, Rewald B. Soil fertility determines whether ectomycorrhizal fungi accelerate or decelerate decomposition in a temperate forest. THE NEW PHYTOLOGIST 2023. [PMID: 37084070 DOI: 10.1111/nph.18930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 04/03/2023] [Indexed: 05/03/2023]
Abstract
Ectomycorrhizal (ECM) fungi can both accelerate and decelerate decomposition of organic matter in forest soils, but a mechanistic understanding of this differential influence is limited. Here, we tested how ECM fungi affect decomposition along a natural fertility gradient in a temperate forest of European beech. Trees were girdled to reduce belowground carbon supply to the soil. Girdling shifted soil fungal community composition and decreased hyphal biomass production and soil CO2 efflux, indicating a reduced ECM fungal activity. Girdling also affected decomposition processes, but the effects depended on fertility. Our results indicate that ECM fungi decelerate decomposition under conditions of low fertility while under conditions of high fertility ECM fungi and their host roots have an accelerating effect. We conclude that both acceleration and deceleration of decomposition of organic matter by ECM fungi can occur within a forest, with soil fertility determining the direction and magnitude of these effects. We suggest a positive feedback between fertility, stand productivity and soil carbon and nitrogen dynamics that is mediated to a large extent by ECM fungi.
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Affiliation(s)
- Mathias Mayer
- Forest Soils and Biogeochemistry, Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, Birmensdorf, 8903, Switzerland
- Forest Ecology, Institute of Terrestrial Ecosystems (ITES), ETH Zurich, Universitätsstrasse 16, Zürich, 8092, Switzerland
- Department of Forest and Soil Sciences, Institute of Forest Ecology, University of Natural Resources and Life Sciences (BOKU), Peter-Jordan Straße 82, Vienna, 1190, Austria
| | - Bradley Matthews
- Department of Forest and Soil Sciences, Institute of Forest Ecology, University of Natural Resources and Life Sciences (BOKU), Peter-Jordan Straße 82, Vienna, 1190, Austria
- Environment Agency Austria, Spittelauer Lände 5, Vienna, 1090, Austria
| | - Hans Sandén
- Department of Forest and Soil Sciences, Institute of Forest Ecology, University of Natural Resources and Life Sciences (BOKU), Peter-Jordan Straße 82, Vienna, 1190, Austria
| | - Klaus Katzensteiner
- Department of Forest and Soil Sciences, Institute of Forest Ecology, University of Natural Resources and Life Sciences (BOKU), Peter-Jordan Straße 82, Vienna, 1190, Austria
| | - Frank Hagedorn
- Forest Soils and Biogeochemistry, Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Zürcherstrasse 111, Birmensdorf, 8903, Switzerland
| | - Markus Gorfer
- Center for Health and Bioresources, Austrian Institute of Technology GmbH (AIT), Konrad-Lorenz-Straße 24, Tulln, 3430, Austria
| | - Harald Berger
- Center for Health and Bioresources, Austrian Institute of Technology GmbH (AIT), Konrad-Lorenz-Straße 24, Tulln, 3430, Austria
- Symbiocyte, Konrad-Lorenz-Straße 24, Tulln, 3430, Austria
| | - Torsten W Berger
- Department of Forest and Soil Sciences, Institute of Forest Ecology, University of Natural Resources and Life Sciences (BOKU), Peter-Jordan Straße 82, Vienna, 1190, Austria
| | - Douglas L Godbold
- Department of Forest and Soil Sciences, Institute of Forest Ecology, University of Natural Resources and Life Sciences (BOKU), Peter-Jordan Straße 82, Vienna, 1190, Austria
- Department of Forest Protection and Wildlife Management, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemědělská 3, Brno, 613 00, Czech Republic
| | - Boris Rewald
- Department of Forest and Soil Sciences, Institute of Forest Ecology, University of Natural Resources and Life Sciences (BOKU), Peter-Jordan Straße 82, Vienna, 1190, Austria
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Zhao Y, Yang H, Xia S, Wu Z. Removal of ammonia nitrogen, nitrate, and phosphate from aqueous solution using biochar derived from Thalia dealbata Fraser: effect of carbonization temperature. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:57773-57789. [PMID: 35352229 DOI: 10.1007/s11356-022-19870-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 03/19/2022] [Indexed: 06/14/2023]
Abstract
Thalia dealbata Fraser-derived biochar was prepared at different carbonization temperatures to remove nutrients in aqueous solution. Thermogravimetry/differential thermogravimetry (TG/DTG) was used to analyze the carbonization and decomposition procedure of Thalia dealbata Fraser. X-ray diffraction (XRD), scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), zeta potential, and N2 adsorption-desorption isotherms were employed to characterize the prepared biochar. The carbonization temperature obviously effected the physical and chemical properties of biochar. The adsorption efficiency of ammonia (NH4+-N), nitrate (NO3--N), and phosphate (PO43-) adsorption on biochar was tested. Pseudo-first-order kinetic, pseudo-second-order kinetic, and intra-particle diffusion kinetic models were used to fit adsorption kinetic. Langmuir and Freundlich models were used to fit adsorption isotherms. The theoretical adsorption capacity of NH4+-N, NO3--N, and PO43- on biochar was 5.8 mg/g, 3.8 mg/g, and 1.3 mg/g, respectively. This study provides the insights for effect of carbonization temperature on biochar preparation and application.
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Affiliation(s)
- Yuqing Zhao
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, People's Republic of China
| | - Hang Yang
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, People's Republic of China
| | - Shibin Xia
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China.
| | - Zhenbin Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, People's Republic of China
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