期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 768, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2020.144582
关键词
Greenhouse gas emissions; Freshwater eutrophication; Influencing factors; Feedback loops
资金
- National Key R&D Programof China [2019YFC0408301]
- National Natural Science Foundation of China [51779076]
- Fundamental Research Funds for the Central Universities [B210202101]
- Foundation for Innovative Research Groups of the National Natural Science Foundation of China [51421006]
- Funds for Key Research and Development Project of Science and Technology Department of Jiangsu Province [BE2018738]
- Six Talent Peaks Project in Jiangsu Province [2016-JNHB-007]
- 333 Talent Project Foundation of Jiangsu Province
- Priority Academic Program Development of JiangsuHigher Education Institutions (PAPD)
Greenhouse gases (GHGs) from freshwater bodies are influenced by the eutrophic status, with both direct and indirect factors playing a role. The review emphasizes the existence of feedback loops between freshwater eutrophication and GHG emissions. Future research directions and mitigation measures are also discussed to provide insights into controlling GHG emissions.
Greenhouse gases (GHGs) have long received public attention because they affect the Earth's climate by producing the greenhouse effect. Freshwaters are an important source of GHGs, and the enhancement in their eutrophic status affects GHG emissions. Along with the increasing eutrophication of water bodies, the relevant quantitative and qualitative studies of the effects of freshwater eutrophication on GHG emissions have made substantial progress, particularly in the past 5 years. However, to our knowledge, this is the first critical review to focus on the role of freshwater eutrophication in GHG emissions. In this review, the emissions of common GHGs from freshwater are quantitatively described. Importantly, direct (i.e., dissolved oxygen, organic carbon, and nutrients) and indirect factors (i.e., dominant primary producer and algal blooms) affecting GHG emissions from eutrophic freshwater are systematically analyzed. In particular, the existence and significance of feedback loops between freshwater eutrophication and GHG emissions are emphasized considering the difficulties managing freshwater ecosystems and the Earth's climate. Finally, several future research directions as well as mitigation measures are described to provide useful insight into the dynamics and control of GHG emissions. (C) 2021 Elsevier B.V. All rights reserved.
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