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Total phytoplankton abundance is determined by phosphorus input: evidence from an 18-month fertilization experiment in four subtropical ponds
Li, Yan1,2; Wang, Hong Zhu1; Liang, Xiao Min1; Yu, Qing1,2; Xiao, Xu Cheng1,2; Shao, Jian Chun2,3; Wang, Hai Jun1
2017-09-01
Source PublicationCANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
Volume74Issue:9Pages:1454-1461
SubtypeArticle
AbstractThere is a heated debate over the necessity of nitrogen (N) reduction, in addition to phosphorus (P) reduction, for the control of eutrophication. Whole-lake fertilization experiments and lake restoration practices in high latitudes have demonstrated that P is the primary factor regulating total phytoplankton. Recognizing the limited large-scale evidence in warmer climatic zones, a fertilization experiment was conducted in four ponds located in the subtropical Yangtze River Basin, China. Total phytoplankton abundance in a pond receiving P (+P) was similar to that in a pond receiving both N and P (+N+P). Both had higher phytoplankton than a pond receiving no additional nutrient (Control). Total nitrogen concentration (TN) in the +P pond increased with the appearance of N-fixing cyanobacteria. Total phytoplankton abundance was similar in the ponds without P addition (+N, Control), and both ponds had lower phytoplankton levels than the +N+P pond. These results showed that P, not N, determines total phytoplankton abundance and that N deficiency is offset by N fixation in subtropical lakes. This experiment supports the idea that attention should be mainly focused on P reduction in mitigating eutrophication.
DOI10.1139/cjfas-2016-0057
Indexed BySCI
Language英语
WOS IDWOS:000408319600011
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/143125
Collection实验海洋生物学重点实验室
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100000, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
Recommended Citation
GB/T 7714
Li, Yan,Wang, Hong Zhu,Liang, Xiao Min,et al. Total phytoplankton abundance is determined by phosphorus input: evidence from an 18-month fertilization experiment in four subtropical ponds[J]. CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES,2017,74(9):1454-1461.
APA Li, Yan.,Wang, Hong Zhu.,Liang, Xiao Min.,Yu, Qing.,Xiao, Xu Cheng.,...&Wang, Hai Jun.(2017).Total phytoplankton abundance is determined by phosphorus input: evidence from an 18-month fertilization experiment in four subtropical ponds.CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES,74(9),1454-1461.
MLA Li, Yan,et al."Total phytoplankton abundance is determined by phosphorus input: evidence from an 18-month fertilization experiment in four subtropical ponds".CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES 74.9(2017):1454-1461.
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