内陆河流水量演变与河流健康评价

Evaluation on evolution of water amount and river health of continental rivers

内陆河流域生态环境和经济社会发展都与水量的时空变化密切相关。基于内陆河流水量遵循增长—顶峰—衰退—消失过程的演变规律和延时变化关系,分析了河流水量演变中各主要指标在不同空间尺度和时间尺度上的变化。结合内陆河流域水土资源开发利用程度和因水量变化引起的生态环境变化,提出了评价河流健康状态的水量演变指标判别标准,结果表明:石羊河、黑河、疏勒河分别处于病态、不健康和亚健康状态。

The eco-environment and economic society development within a continental river basin are closely correlated to the spatio-temporal variations of the water amount in the related river. Based on the relationship between the evolution law of the water amount（increase-peak-decline-vanish） and the time delay, the variations of all the main indexes in the evolution of water amount at different spatial scales and temporal scales are analyzed herein. Combined with the coo-environmental changes caused by the development and utilization of the land-water resources and the variation of the water amount in continental river basin in different periods, a distinguishing criterion of evolution of water amount for evaluating the status of the river health is put forward herein. With this criterion, some evaluation cases are made and the related results are given as well.