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SEASONAL REGIME SHIFT OF AN ALTERNATIVE-STATE LAKE XINGYUN, CHINA
Wang, Yingcai; Wang, Zhicong; Wu, Weiju; Hu, Mingming; Wang, Zhen; Xu, Aihua; Li, Genbao; Liu, Yongding; Liu, YD, Chinese Acad Sci, Inst Hydrobiol, 7 S Donghu Rd, Wuhan 430072, Hubei Province, Peoples R China
2010
Source PublicationFRESENIUS ENVIRONMENTAL BULLETIN
ISSN1018-4619
Volume19Issue:8Pages:1474-1485
AbstractFor a natural lake, there are usually two stable states, a clean state and a turbid state. However, there exists an alternative state, which is unstable and can shift to either a clean or a turbid state depending on varied environmental factors. In this paper, we report a lake undergoing a pattern of seasonal shifting. We found that Lake Xingyun appeared clean in winter with low level of nutrients, low Chlorophyll a (Chl-a) and high secchi depth (SD). However, during summer, the lake turned into turbid with higher level of nutrients and Chl-a, but lower SD. In close response to environmental changes, phytoplankton population of the lake also adopted a pattern of seasonal shift. The order of the seasonal appearances of the dominant populations was as follows: Cyanophyta and Cryptophyta in spring, Microcystis in summer, Melosira in autumn, and Chlorophyta in winter. Our data clearly indicate that Lake Xingyun stayed in clean state in winter but became turbid in summer, and 0.07-0.135mg/L can be considered as the total phosphorus (TP) threshold concentration for Lake Xingyun's alternation between those two states. We also found that both TP and water temperature were the major factors influencing the phytoplankton biomass and its succession. In addition, wind also played a significant role in promoting the dominance of Chlorophyta in winter. In conclusion, Lake Xingyun, represents an alternative state lake with a certain nutrient level, can undergo a seasonal regime shift. Temperature change is the primary force that drives Lake Xingyun to shift its regime state.
KeywordAlternative States Phytoplankton Population Threshold Concentration Regime Shift Driving Force
Department[Wang, Yingcai; Wang, Zhicong; Wu, Weiju; Hu, Mingming; Wang, Zhen; Xu, Aihua; Li, Genbao; Liu, Yongding] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei Province, Peoples R China; [Wang, Yingcai] Yangtze Valley Water Environm Monitoring Ctr, Wuhan 430010, Peoples R China
Subject AreaEnvironmental Sciences
Funding Organization973 project [2008ZX07106]; State major science and technology special projects [2008ZX07105-006, 2008ZX07102-005] ; 973 project [2008ZX07106]; State major science and technology special projects [2008ZX07105-006, 2008ZX07102-005] ; 973 project [2008ZX07106]; State major science and technology special projects [2008ZX07105-006, 2008ZX07102-005] ; 973 project [2008ZX07106]; State major science and technology special projects [2008ZX07105-006, 2008ZX07102-005]
Indexed BySCI
Language英语
WOS IDWOS:000281051200011
Funding Organization973 project [2008ZX07106]; State major science and technology special projects [2008ZX07105-006, 2008ZX07102-005] ; 973 project [2008ZX07106]; State major science and technology special projects [2008ZX07105-006, 2008ZX07102-005] ; 973 project [2008ZX07106]; State major science and technology special projects [2008ZX07105-006, 2008ZX07102-005] ; 973 project [2008ZX07106]; State major science and technology special projects [2008ZX07105-006, 2008ZX07102-005]
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/13689
Collection水环境工程研究中心_期刊论文
Corresponding AuthorLiu, YD, Chinese Acad Sci, Inst Hydrobiol, 7 S Donghu Rd, Wuhan 430072, Hubei Province, Peoples R China
Recommended Citation
GB/T 7714
Wang, Yingcai,Wang, Zhicong,Wu, Weiju,et al. SEASONAL REGIME SHIFT OF AN ALTERNATIVE-STATE LAKE XINGYUN, CHINA[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2010,19(8):1474-1485.
APA Wang, Yingcai.,Wang, Zhicong.,Wu, Weiju.,Hu, Mingming.,Wang, Zhen.,...&Liu, YD, Chinese Acad Sci, Inst Hydrobiol, 7 S Donghu Rd, Wuhan 430072, Hubei Province, Peoples R China.(2010).SEASONAL REGIME SHIFT OF AN ALTERNATIVE-STATE LAKE XINGYUN, CHINA.FRESENIUS ENVIRONMENTAL BULLETIN,19(8),1474-1485.
MLA Wang, Yingcai,et al."SEASONAL REGIME SHIFT OF AN ALTERNATIVE-STATE LAKE XINGYUN, CHINA".FRESENIUS ENVIRONMENTAL BULLETIN 19.8(2010):1474-1485.
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