Optimizing the Route to the North of the Yellow River for the Eastern Route of the South-to-North Water Diversion Project

Abstract

Since the Overall Planning of the South-to-North Water Diversion Project was approved 20 years ago, the supply and demand situation of water resources and water ecological environment problems in North China has undergone profound changes. Therefore, optimizing the subsequent route becomes significant for adapting to the new development situation in North China and for implementing major national strategies. The Beijing‒Tianjin‒Hebei region is the major water-receiving area of the follow-up project of the eastern route of the South-to-North Water Diversion Project. Analyses of the long-term supply and demand trend, spatial distribution, and structural characteristics of the Beijing‒Tianjin‒Hebei region exhibit that from the long-term supply and demand trend, the gap of water resources in this region is 3.9×10~6×10 m, and the growth of water demand is mainly contributed by the central and western urban areas, which are also key areas for implementing national strategies such as the construction of the Xiongan New Area. Moving water supply centers westward by establishing a new route into Beijing via Baiyang Lake while using existing river channels allows the route of the project to cover the shallow groundwater overexploitation areas to the largest extent, which is also 收稿日期:2022-06-28;修回日期:2022-08-15 通讯作者:何凡,中国水利水电科学研究院水资源研究所教授级高级工程师,研究方向为水资源管理、规划与战略;E-mail: hefan@iwhr.com 资助项目:国家重点研发计划项目(2021YFC3200204);国家杰出青年科学基金项目(51625904);国家自然科学基金项目(52061125101) 本刊网址:www.engineering.org.cn/ch/journal/sscae