南水北调中线水源区溪流生态系统健康评价  

Assessment of river ecosystem health in water source area of middle route of South-to-North Water Transfer

作　　者：汪兴中[1,2] 蔡庆华[1] 李凤清[1,2] 段树桂[1,2] 

机构地区：[1]中国科学院水生生物研究所,淡水生态与生物技术国家重点实验室,武汉430072 [2]中国科学院研究生院,北京100049

出　　处：《生态学杂志》2010年第10期2086-2090,共5页Chinese Journal of Ecology

基　　金：国家"十一五"科技支撑项目(2006BAC10B02);国家自然科学基金资助项目(30330140)

摘　　要：2007年7月—2008年5月,对南水北调中线水源区丹江口水库若干入库溪流的河流水文、河流形态、河岸带、水体理化和底栖生物进行调查并应用河流健康综合评价指数进行评价。结果表明,位于上游的溪流生态系统健康状况较好,而位于城镇下游的溪流生态系统健康状况较差,主要体现在河流形态的改变、底栖藻类自养指数升高和底栖动物多样性减小。提出维持丹江口入库溪流生态系统健康的建议,除了对上游地区要进行生态环境保护外,更要对中游地区受破坏的河流形态进行恢复。From July 2007 to May 2008,an investigation was made on the hydrology,physical form,streamside zone,water quality,and benthic organisms in several streams that flow to the Danjiangkou Reservoir. By using a river health comprehensive assessment index,the river ecosystem health of the streams was assessed. In upstream reaches,the river ecosystem health was good; while in downstream reaches,the river ecosystem health was bad,because of the physical form change,increased autotrophic index,and decreased macro-benthic invertebrate diversity. It was suggested that to maintain the river ecosystem health of the streams flowing to the Danjiangkou Reservoir,the eco-environment in upstream reaches should be protected,and the destroyed physical form in middle reaches should be restored.

关 键 词：丹江口水库 溪流 大型底栖无脊椎动物 生态系统健康 评价 

分 类 号：Q178[生物学—水生生物学]