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Nonlinear response of methane release to increased trophic state levels coupled with microbial processes in shallow lakes

文献类型：期刊论文

作者Zhou, Yiwen1,2,3; Song, Kang1; Han, Ruiming2; Riya, Shohei3; Xu, Xiaoguang2; Yeerken, Senbati1; Geng, Shixiong1; Ma, You2; Terada, Akihiko3
刊名ENVIRONMENTAL POLLUTION
出版日期2020-10-01
卷号265期号:PT A页码:10
关键词Methane Carbon dioxide Eutrophication Methanotrophs Methanogens
ISSN号0269-7491
DOI10.1016/j.envpol.2020.114919
通讯作者Xu, Xiaoguang(xxg05504118@163.com)
英文摘要Shallow lakes are a crucial source of methane (CH4), a potent greenhouse gas, to the atmosphere. However, large uncertainties still exist regarding the response of CH4 emissions to the increasing trophic levels of lakes as well as the underlying mechanisms. Here, we investigate the CH4 emission flux from lakes with different trophic states in the middle and lower reaches of the Yangtze River basin, China to evaluate the effect of the trophic lake index (TLI) on CH4 emissions. The mean CH4 emission fluxes from mesotrophic, eutrophic, middle-eutrophic, and hyper-eutrophic lakes were 0.1, 4.4, 12.0, and 130.4 mg m(-2) h(-1), respectively. Thus, the CH4 emission flux ranged widely and was positively correlated with the degree of eutrophication. The relative abundance of methanogens with respect to the total population for the mesotrophic, eutrophic, mid-eutrophic, and hyper-eutrophic states was 0.03%, 0.35%, 0.94%, and 1.17%, respectively. The biogeographic-scale pattern of lakes classified as each of these four trophic states indicated that CH4 emissions could be well-predicted by the NH4+-N concentration in the water column, as both NH4+-N and CH4 were produced during mineralisation of labile organic matter in lake sediment. In addition, the shift from clear to turbid water, which is an unhealthy evolution for lakes, was associated with a nonlinear increase in the CH4 emissions from the studied lakes. In particular, the hypereutrophic lakes functioned as CH4 emission hotspots. Our findings highlight that nutrient levels, as a potential facilitator of CH4 emissions, should be considered in future research to accurately evaluate the greenhouse gas emissions from shallow lakes. (C) 2020 Elsevier Ltd. All rights reserved.
WOS关键词CARBON-DIOXIDE ; CYANOBACTERIA BLOOMS ; SUBTROPICAL LAKE ; INORGANIC CARBON ; WATER ; EMISSIONS ; TEMPERATURE ; FLUXES ; DYNAMICS ; CH4
资助项目National Natural Science Foundation of China[41703105] ; National Natural Science Foundation of China[41877344] ; National Natural Science Foundation of China[41773081] ; NationalWater Science and Technology Project[2018ZX07208001] ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China[17KJB170009] ; China Scholarship Council[CSC201808420224] ; Chinese Academy of Sciences[Y82Z08-1-401] ; Chinese Academy of Sciences[Y75Z01-1-401]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000558886200059
出版者ELSEVIER SCI LTD
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NationalWater Science and Technology Project ; NationalWater Science and Technology Project ; NationalWater Science and Technology Project ; NationalWater Science and Technology Project ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NationalWater Science and Technology Project ; NationalWater Science and Technology Project ; NationalWater Science and Technology Project ; NationalWater Science and Technology Project ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NationalWater Science and Technology Project ; NationalWater Science and Technology Project ; NationalWater Science and Technology Project ; NationalWater Science and Technology Project ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NationalWater Science and Technology Project ; NationalWater Science and Technology Project ; NationalWater Science and Technology Project ; NationalWater Science and Technology Project ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; Natural Science Foundation of the Jiangsu Higher Education Institutions of China ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; China Scholarship Council ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences
源URL[http://ir.ihb.ac.cn/handle/342005/38619]  
专题水生生物研究所_水环境工程研究中心_期刊论文
通讯作者Xu, Xiaoguang
作者单位1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Nanjing Normal Univ, Sch Environm, Nanjing 210023, Peoples R China
3.Tokyo Univ Agr & Technol, Dept Chem Engn, Tokyo 1848588, Japan
推荐引用方式
GB/T 7714		 Zhou, Yiwen,Song, Kang,Han, Ruiming,et al. Nonlinear response of methane release to increased trophic state levels coupled with microbial processes in shallow lakes[J]. ENVIRONMENTAL POLLUTION,2020,265(PT A):10.
APA Zhou, Yiwen.,Song, Kang.,Han, Ruiming.,Riya, Shohei.,Xu, Xiaoguang.,...&Terada, Akihiko.(2020).Nonlinear response of methane release to increased trophic state levels coupled with microbial processes in shallow lakes.ENVIRONMENTAL POLLUTION,265(PT A),10.
MLA Zhou, Yiwen,et al."Nonlinear response of methane release to increased trophic state levels coupled with microbial processes in shallow lakes".ENVIRONMENTAL POLLUTION 265.PT A(2020):10.

入库方式： OAI收割

来源：水生生物研究所

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