长江流域资源与环境 >> 2016, Vol. 25 >> Issue (06): 957-964.doi: 10.11870/cjlyzyyhj201606012
李卫明1, 艾志强1, 刘德富1,2, 周晓明3
LI Wei-ming1, AI Zhi-qiang1, LIU De-fu1,2, ZHOU Xiao-ming3
摘要: 为进一步了解水电开发对河流健康的影响,本文以雅砻江下游水电梯级开发为例,构建河流健康评价指标体系,选择无人为干扰和干扰较小的河流为参照,以指标变化率衡量水电梯级开发前后河流受扰动程度,分别采用综合评价法和赋值评分法进行了定量评价。综合评价结果显示,雅砻江下游河段的综合健康指数为0.71,该研究区域在丰水期、平水期和枯水期的综合健康指数分别为0.74、0.70和0.69,均处于亚健康状态;赋值评分法结果显示建库前的河流健康指数(River health index,RHI)为19.1,等级为健康,建库后为14.3,等级为亚健康,两种方法评价结果基本一致。本文以期完善河流健康评价体系,并为生态修复提供依据。
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