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题名: ROLE OF PHOSPHORUS CYCLING IN ALGAL METABOLISM AND ALGAL SUCCESSION IN LAKE DONGHU CHINA
作者: WANG J ; LIU J K
通讯作者: WANG J ; INST HYDROBIOL, ACADEMIA SINICA, WUHAN 430072, CHINA
刊名: Archiv fuer Hydrobiologie
发表日期: 1991
卷: 120, 期:4, 页:433-446
收录类别: 其他
英文摘要: The role of phosphorus cycling in algal metabolism was studied in a shallow lake, Donghu, in Wuhan using the methods of measuring cell quota C, N and P, and calculating nutrients uptake rate by algal photosynthesis. The mean daily phosphorus uptake rate of phytoplankton varied between 0.04-0.11 and 0.027-0.053 g/m2/d in station I and station II respectively. The turnover time of phosphorus in phytoplankton metabolism ranged from 0.75-5.0 days during 1979-1986. The available P was 0.176 (.+-. 0-.156) g/m3 (mean .+-. SD) in 1982 and 0.591 (.+-. 0.24) g/m3 in 1986. The relationship between P/B ratio (Y) and TP (X:mg/l) was described by the following regression equation Y = 1.163 + 0.512 logX (r = 0.731, P < 0.001). The dynamics of algal biomass and algal species succession were monitored as the indicators of environmental enrichment. The small-sized algae have replaced the blue-green algae as the dominant species during 1979-1986. The small-sized algae include Merismopedia glauca, Cryptomonas ovata, Cryptomonas erosa, several species Cyclotella. There has been drastic decrease in algal biomass and an obvious increase in P/B ratio. A nutrient competition hypothesis is proposed to explain the reason of the disappearance of blue-green algae bloom. The drastic change in algal size and the results in high P/B ratio (reaching a maximum mean daily ratio of 1.09 in 1986) may suggest a transition of algal species from K-selection to r-selection in Lake Dunglu.
ISSN号: 0003-9136
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/17659
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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Recommended Citation:
WANG J; LIU J K.ROLE OF PHOSPHORUS CYCLING IN ALGAL METABOLISM AND ALGAL SUCCESSION IN LAKE DONGHU CHINA,Archiv fuer Hydrobiologie,1991,120(4):433-446
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文件名: ROLE OF PHOSPHORUS CYCLING IN ALGAL METABOLISM AND ALGAL SUCCESSION IN LAKE DONGHU CHINA.pdf
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