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引用本文:卢志娟,裴洪平,汪勇.西湖生态系统健康评价初探.湖泊科学,2008,20(6):802-805. DOI:10.18307/2008.0601
LU Zhi-juan,PEI Hong-ping,WANG Yong.Preliminary exploration of ecosystem health assessment for Lake West. J. Lake Sci.2008,20(6):802-805. DOI:10.18307/2008.0601
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西湖生态系统健康评价初探
卢志娟1, 裴洪平1, 汪勇2
1.浙江大学(西溪校区)环境与资源学院环境科学系, 杭州 310028;2.浙江省环境保护科学设计研究院, 杭州 310007
摘要:
在对湖泊生态系统健康评价研究的基础上,提出用营养状态—综合指数法(TSI-CI)对西湖进行生态系统健康评价.首先选用Chl.a、SD、TP和TN四个指标用相关加权指数法进行营养状态评价,再选择物化和生物指标无量纲化处理后计算综合指数进行综合评价.结果表明:西湖生态系统健康状况与营养状态水平的变化趋势是一致的,1-3月健康状况相对较好,7-9月相对较差.该结果客观反映了西湖的实际情况,为西湖水质管理提供科学依据.
关键词:  生态系统健康评价  指标  综合指数  杭州西湖
DOI:10.18307/2008.0601
分类号:
基金项目:国家自然科学基金项目(39170169)资助
Preliminary exploration of ecosystem health assessment for Lake West
LU Zhi-juan1, PEI Hong-ping1, WANG Yong2
1.Department of Environmental Science, College of Environment and Resource, Xixi Campus Zhejiang University, Hangzhou 310028, P.R.China;2.Environmental Science Research and Design Institute of Zhejiang Province, Hangzhou 310007, P.R.China
Abstract:
Ecosystem health was a newly proposed concept in the world with the environment becoming serious issue and on ecosystem health assessment. A method, trophic state-comprehensive index based on researches on the lake ecosystem health had been proposed to evaluate the ecosystem health of Lake West. Firstly, four indices including Chl.a, SD, TP and TN were choosed to calculate the TSI. Secondly, undimensionalizated indices such as physical, chemistry and biology was used to calculate comprehensive index to estimate the ecosystem health state. The results showed that the health state was better in January to March than in July to September, and the trend of ecosystem health is consistent with the level of trophic state. The result reflectted the actual situation of Lake West objectively, so it can provide scientific guidance for Lake West management.
Key words:  Assessment of ecosystem health  indicators  comprehensive index  Lake West in Hangzhou
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