区域环境承载力评价指标体系的构建——以黄河上游水电开发区域为例

Construction of index system for regional environmental carrying capacity: A case study of the upper reaches of Yellow River Basin

基于生态系统健康的环境承载力概念模型,采用层次分析法,建立区域环境承载力评价指标体系,确定各个评价指标值对区域环境承载力的基本权重,运用该评价指标体系对黄河上游流域青海片的环境承载力进行定量化计算。结果表明,1985—2009年,黄河上游流域青海片的人类潜力指数呈波动上升趋势,生态弹性力指数处于波动下降趋势,资源承载力指数以及相应的区域环境承载力指数也呈缓慢下降趋势。如何发挥区域经济发展和水电资源利用对区域生态系统状况和环境承载能力的提升作用,是未来区域发展需要重视的问题。

In terms of the concept model of environmental carrying capacity based on ecosystem health through the application of the analytic hierarchy process, we established an index system for regional environment carrying capacity, determined the basic weight value of each evaluation index of environmental carrying capacity, and calculated the environmental carrying capacity in the upper reaches of the Yellow River Basin in Qinghai index system. The results showed that, in 1985-2009, through the application of this evaluation the human potential index of the upper reaches of the Yellow River Basin in Qinghai Province fluctuated upward. Simultaneously, the ecological elasticity capability index fluctuated downward, and the resource carrying capacity in- dex and the regional environmental carrying capacity index also showed a slow downward trend. Regional economic development and hydroelectric resource utilization can have a lifting effect on the regional ecological system and environment carrying capacity, and thus how to exert this effect is an issue that should be paid special attention in the future.