Long-term development of phytoplankton dominant species related to eutrophicarion in Lake Taihu
QIAN Kui-mei1,2, CHEN Yu-wei1, SONG Xiao-lan1,2
1. Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China; 2. Graduate School of Chinese Academy of Sciences, Beijing 100039, P. R. China
Inter-annual changes of phytoplankton dominant species and biomass in a large shallow lake,Taihu China,were analyzed using the monthly monitoring data covering the period of 1991~2002.The concentrations of total nitrogen(TN),total phosphorus(TP) and phytoplankton chlorophyll-a(Chla) were used to explain the development of eutrophication in the lake.The results showed marked gradients of TN,TP,Chla and biomass in the lake from high values near the northern river input in the inner Meiliang Bay towards lower concentrations in the lake centre.Phytoplankton dominant species shifted from diatoms to cyanobacteria at the end of 1980's when the eutrophication started in the lake.Thereafter,almost no change in dominant species but phytoplankton biomass varied among years.Annual averages of TN,TP,Chla and biomass increased until 1996 declining thereafter possibly because of the controlling of wastewater discharge from the catchment by the local government.Microcystis-domination in phytoplankton assemblages presented the indication of eutrophication in Lake Taihu.Our results suggest that phytoplankton is a suitable ecological indicator for eutrophication development in large shallow lakes.
钱奎梅1,2, 陈宇炜1*, 宋晓兰1,2. 太湖浮游植物优势种长期演化与富营养化进程的关系[J]. , 2008, 27(2): 65-70.
QIAN Kui-mei1,2, CHEN Yu-wei1, SONG Xiao-lan1,2. Long-term development of phytoplankton dominant species related to eutrophicarion in Lake Taihu. , 2008, 27(2): 65-70.
[1] Dokulil M T,Chcn W,Cai Q.2000.Anthropogenic impacts to large lakes in China:The Tai Hu example[J].Aquatic Ecosystem Health and Management,3:81-94.
[2] 孙顺才,黄漪平.1993.太湖[M].北京:海洋出版社,6-48.
[3] Chang W Y B.1987.Large lakes of China[J].Journal of Great Lakes Research,13:235-249.
[4] Zhu M.1994.Preliminary study On water quality protection in Lake Taihu[A].In:Sund H,Yu X,Stabel H,et al(eds),Environmental protection and lake ecosystem.Beijing:China Science and Technology Press.269-279.
[5] Forsberg C,Ryding S O.1980.Eutrophicafion parameters and trophic state indices in 30 Swedish waste receiving lakes[J].Archiv fur Hydrobiologie,89:189-207.
[6] 郑一,王学军,江耀慈,等.2001.环太湖河道水质分析与入湖污染物负荷量估算[J].地理学与国土研究,17(1):40-44.
[7] 黄文钰,高光,舒盎华,等.2001.太湖地区"禁磷"措施的效果及在富营养化控制中的作用[J].农村生态环境,17(4):26-29.
[8] 任黎,董增川,李少华.2004.人工神经网络模型在太湖富营养化评价中的应用[J].河海大学学报,32(2):147-150.
[9] 龚绍琦,黄家柱,李云梅,等.2005.基于GIS下的太湖水质富营养化模糊综合评价[J].环境科学,26(5):34-37
[10] 焦红波,查勇,李云梅,等.2006.基于地面实测光谱的太湖水体富营养化水平估算[J].湖泊科学,18(4):343-348.
[11] 王荐.2000.太湖浮游植物与富营养化[J].无锡教育学院学报,20(3):90-92.
[12] 高柳青,晏维金.2002.富营养化对三湖水环境影响及防治探讨[J].资源科学,24(3):19-25.
[13] 张运林,秦伯强.2001.太湖水体富营养化的演变及研究进展[J].上海环境科学,20(6):263-265.