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太湖鱼类产量、组成的变动规律及与环境的关系
引用本文:刘恩生,刘正文,陈伟民,陈开宁.太湖鱼类产量、组成的变动规律及与环境的关系[J].湖泊科学,2005,17(3):251-255.
作者姓名:刘恩生  刘正文  陈伟民  陈开宁
作者单位:1. 中国科学院南京地理与湖泊研究所,太湖湖泊生态系统研究站,南京,210008;中国科学院研究生院,北京,100039
2. 中国科学院南京地理与湖泊研究所,太湖湖泊生态系统研究站,南京,210008
基金项目:国家自然科学基金项目(40271100) 中国科学院知识创新工程重大项目(KZCX1-SW-12-Ⅱ-01) 中国科学院野外台站研究基金项目联合资助.
摘    要:湖泊生态系统健康包含两个方面的内涵:满足人类社会合理要求的能力和湖泊生态系统自我维持与更新的能力.获知湖泊生态系统健康状况及其区域分异特征,对于湖泊管理具有重要意义.本文基于对太湖的野外调查,计算了表征湖泊生态系统健康的系统能、系统能结构、生态缓冲容量和湖泊营养状态指数.聚类分析结果表明,太湖不同湖区生态系统健康状况存在一定差异,东部湖区较好,西部湖区较差,呈现由东南部湖区向西北部湖区递减的趋势.该结果对进一步研究湖泊生态系统健康评价指标阈值具有重要的参考意义.

关 键 词:生态系统健康  评价  指标  空间分异  太湖
收稿时间:2004-04-02
修稿时间:2005-04-12

Changes in the Yield and Composition of the Fish Catches and Their Relation to the Environmental Factors in Lake Taihu
Liu Ensheng,LIU Zhengwen,CHEN Weimin and CHEN Kaining.Changes in the Yield and Composition of the Fish Catches and Their Relation to the Environmental Factors in Lake Taihu[J].Journal of Lake Science,2005,17(3):251-255.
Authors:Liu Ensheng  LIU Zhengwen  CHEN Weimin and CHEN Kaining
Institution:Graduate School of CAS, Beijing 100039, P. R. China;Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008, P. R. China;Anhui Agicultural University, Hefei 230036, P. R. China,Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008, P. R. China,Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008, P. R. China and Graduate School of CAS, Beijing 100039, P. R. China;Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008, P. R. China
Abstract:Ecosystem health is a new field in ecology,and environmental management and it is about fostering a new integrative science. Lake ecosystem health refers to a state of a lake both supplying services for people and maintaining its function and complexity. Assessment on lake ecosystem health is the basis of lake environmental management and ecosystem control,so it is important to learn the ecosystem health and spatial differentiation characteristics of a lake. In this case study for Lake Taihu, a large shallow eutrophic lake, an attempt to apply exergy, structural exergy, ecological buffer capacity and trophic state index to the assessment of the lake ecosystem health was presented. The results revealed there was different ecosystem health to some extent in each area of Lake Taihu through cluster analysis. The ecosystem health of East Lake Taihu was the best among the different areas of Lake Taihu. The ecosystem health of the east part near the bank and Lake Gonghu was better. The ecosystem health of the center part and the west part of Lake Taihu was worse. That is to say, the ecosystem health of the east part was better than that of the west part in Lake Taihu, and moreover, the ecosystem health in different areas of Lake Taihu descended from the southeast part to the northwest. The results will give some advice for environmental management of Lake Taihu and can be used to set up the standard for evaluating ecosystem health of shallow eutrophic lakes.
Keywords:Ecosystem health  assessment  indicator  spatial differentiation  Lake Taihu
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