守护“一江碧水向东流”——长江经济带水利高质量发展10年综述

Core Viewpoint - The development of the Yangtze River Economic Belt over the past decade has focused on ecological priority and green development, leading to significant improvements in water management and environmental protection [1] Group 1: Flood and Drought Disaster Prevention - A comprehensive flood and drought disaster prevention system has been established in the Yangtze River basin, significantly enhancing flood control capabilities with over 52,000 reservoirs and a total storage capacity of approximately 400 billion cubic meters [2][4] - The joint scheduling of 132 water projects, including reservoirs and flood storage areas, has transitioned from single flood control to multi-objective management, improving overall water resource efficiency [2] - The digital twin system for flood and drought management has improved forecasting accuracy to 90% for key river sections, extending the effective forecasting period to 3-7 days [2][4] Group 2: Ecological Restoration - The ecological restoration of the Yangtze River is a top priority, with measures taken to ensure ecological flow and health of rivers and lakes [5][6] - Over 607 cross-provincial rivers and lakes have been assessed for ecological flow, with a compliance rate exceeding 97% from 2021 to 2024 [6][7] - Significant actions have been taken to restore 17 rivers and lakes, improve water quality, and eliminate illegal sand mining activities, resulting in a substantial increase in the safety of drinking water sources [7] Group 3: Water Resource Management - The Yangtze River Water Resources Commission has prioritized water conservation, achieving a 50% reduction in water usage per unit of GDP over the past decade [8] - The unconventional water utilization has increased from 1.279 billion cubic meters to 5.335 billion cubic meters, reflecting improved efficiency in water resource management [8] Group 4: Socioeconomic Benefits - The Yangtze River has been transformed into a "happy river," benefiting local populations through improved water quality and environmental conditions [9][12] - The GDP of the region has more than doubled, with the proportion of national GDP rising from 42.2% to 47.3%, and per capita disposable income increasing by 91% [11] - The South-to-North Water Diversion Project has delivered over 75.5 billion cubic meters of water to northern regions, benefiting approximately 118 million people [12] Group 5: Cultural and Heritage Preservation - Efforts have been made to protect and promote the cultural heritage of the Yangtze River, enhancing the integration of traditional culture with modern development [15]