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Mitigation of lake eutrophication: Loosen nitrogen control and focus on phosphorus abatement
Wang, Haijun; Wang, Hongzhu; Wang, HZ, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2009
Source PublicationPROGRESS IN NATURAL SCIENCE
Volume19Issue:10Pages:1445-1451
Abstractw Traditionally, nitrogen control is generally considered an important component of reducing lake eutrophication and cyanobacteria blooms. However, this viewpoint is refuted recently by researchers in China and North America. In the present paper, the traditional viewpoint of nitrogen control is pointed out to lack a scientific basis: the N/P hypothesis is just a subjective assumption; bottle bioassay experiments fail to simulate the natural process of nitrogen fixation. Our multi-year comparative research in more than 40 Yangtze lakes indicates that phosphorus is the key factor determining phytoplankton growth regardless of nitrogen concentrations and that total phytoplankton biomass is determined by total phosphorus and not by total nitrogen concentrations. These results imply that, in the field, nitrogen control will not decrease phytoplankton biomass. This finding is supported by a long-term whole-lake experiment from North America. These outcomes can be generalized in terms that a reduction in nitrogen loading may not decrease the biomass of total phytoplankton as it can stimulate blooms of nitrogen-fixing cyanobacteria. To mitigate eutrophication, it is not nitrogen but phosphorus that should be reduced, unless nitrogen concentrations are too high to induce direct toxic impacts on human beings or other organisms. Finally, details are provided on how to reduce controls on nitrogen and how to mitigate eutrophication. (C) 2009 National Natural Science Foundation of China and Chinese Academy of Sciences. Published by Elsevier Limited and Science in China Press. All rights reserved.
KeywordLake Eutrophication Cyanobacteria Blooms Lake Restoration
Department[Wang, Haijun; Wang, Hongzhu] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Subject AreaMultidisciplinary Sciences
Funding OrganizationState Key Basic Research and Development Plan of China [2008CB418006]; Chinese Academy of Sciences [KZCX1-YW-14-1, KZCX2-YW-426-02] ; State Key Basic Research and Development Plan of China [2008CB418006]; Chinese Academy of Sciences [KZCX1-YW-14-1, KZCX2-YW-426-02] ; State Key Basic Research and Development Plan of China [2008CB418006]; Chinese Academy of Sciences [KZCX1-YW-14-1, KZCX2-YW-426-02] ; State Key Basic Research and Development Plan of China [2008CB418006]; Chinese Academy of Sciences [KZCX1-YW-14-1, KZCX2-YW-426-02]
Indexed BySCI
Language英语
WOS IDWOS:000270021300037
Funding OrganizationState Key Basic Research and Development Plan of China [2008CB418006]; Chinese Academy of Sciences [KZCX1-YW-14-1, KZCX2-YW-426-02] ; State Key Basic Research and Development Plan of China [2008CB418006]; Chinese Academy of Sciences [KZCX1-YW-14-1, KZCX2-YW-426-02] ; State Key Basic Research and Development Plan of China [2008CB418006]; Chinese Academy of Sciences [KZCX1-YW-14-1, KZCX2-YW-426-02] ; State Key Basic Research and Development Plan of China [2008CB418006]; Chinese Academy of Sciences [KZCX1-YW-14-1, KZCX2-YW-426-02]
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7574
Collection期刊论文
Corresponding AuthorWang, HZ, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Wang, Haijun,Wang, Hongzhu,Wang, HZ, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China. Mitigation of lake eutrophication: Loosen nitrogen control and focus on phosphorus abatement[J]. PROGRESS IN NATURAL SCIENCE,2009,19(10):1445-1451.
APA Wang, Haijun,Wang, Hongzhu,&Wang, HZ, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2009).Mitigation of lake eutrophication: Loosen nitrogen control and focus on phosphorus abatement.PROGRESS IN NATURAL SCIENCE,19(10),1445-1451.
MLA Wang, Haijun,et al."Mitigation of lake eutrophication: Loosen nitrogen control and focus on phosphorus abatement".PROGRESS IN NATURAL SCIENCE 19.10(2009):1445-1451.
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