Yu Xiao, ZhugeYisi, Li Guoqiang, Du Qiang, Tan Hongwu
China Institute of Water Resources and Hydropower Research, Beijing 100038, China
Objectives of the study
High-stress rivers are usually characterized by over-exploitation of water resources, high regulation of water engineering, high variability of river hydrological processes, and serious damage to water ecological integrity. The ecosystem structure and function of such rivers undergo a series of changes, leading to the degradation of the river water ecosystem. In the context of high stress, the hydrological process of rivers is difficult to guarantee. The issue of ensuring ecological flow has become a significant weakness in the protection and management of ecological environment in high stress rivers. The upstream drainage area of YongdingRiver (above GuantingReservoir) is 92.3% of the total basin area. It is the main runoff and water use area, with high water resource development and utilization rate. This paper takes the restoration of the green corridor in upper YongdingRiver as the main objective to carry out the ecological flow accounting research.