Submitted: 23 September 2026 Posted: 23 September 2026 You are already at the latest version The national water network is a component of China’s infrastructure, and coordinating ecological security with economic development is important for its construction. Taking the Chao’er River to West Liao River Water Diversion Project, part of the three-horizontal and three-vertical Inner Mongolia water network, as a case study, this paper analyzes the main receiving areas, Tongliao and Xing’an League.