Core Insights - The 2024 China Water Resources Bulletin indicates a significant increase in national precipitation and water resources compared to historical averages, with total water resources reaching 31,123.0 billion cubic meters, which is 12.7% higher than the average [1] - Total water usage in 2024 is projected at 5,928.0 billion cubic meters, reflecting a slight increase from 2023, with specific increases in domestic and ecological water usage [2] Water Resource Statistics - The average annual precipitation in 2024 is 717.7 mm, which is 11.4% above the historical average [1] - Surface water resources account for 29,895.6 billion cubic meters, while groundwater resources total 8,679.2 billion cubic meters, with a non-overlapping amount of 1,227.4 billion cubic meters [1] Water Usage Breakdown - Domestic water usage is 926.8 billion cubic meters, making up 15.6% of total water usage, while industrial and agricultural water usage are 971.0 billion cubic meters (16.4%) and 3,648.4 billion cubic meters (61.6%) respectively [2] - Compared to 2023, total water usage increased by 21.5 billion cubic meters, with notable increases in domestic and ecological water usage, while agricultural water usage saw a decrease [2] Efficiency Metrics - The per capita comprehensive water usage in 2024 is 421 cubic meters, with water usage per unit of GDP at 43.9 cubic meters [3] - Water usage per unit of industrial added value decreased by 5.3% compared to 2023, indicating improved efficiency [3]

Core Insights - The article highlights the successful management and ecological restoration of the Ersheng Reservoir, emphasizing its role in water supply and environmental protection [1][2][3] Group 1: Water Management and Supply - The Ersheng Reservoir has a total capacity of 57.2 million cubic meters and is crucial for irrigating 11,000 acres of farmland and providing water for over 100,000 residents [1] - Due to drought conditions, the reservoir's capacity decreased by approximately 5 million cubic meters, leading to a water replenishment of about 3.1 million cubic meters over 24 days starting from April 14 [1] Group 2: Infrastructure and Safety - The reservoir has completed hazard mitigation works, with the dam rated as a "Class I dam," ensuring stable operation of its spillway and water conveyance structures [2] - The implementation of an automated monitoring system allows for real-time tracking of water levels, water quality, and structural conditions, maintaining a water quality standard of Class II with a 100% compliance rate [2] Group 3: Ecological and Community Impact - The reservoir's management under the "River Chief System" has improved flood control capabilities and promoted ecological restoration, leading to a thriving ecosystem that attracts various bird species and enhances local biodiversity [2] - The area has become a popular recreational spot for residents and tourists, contributing to the local economy and community engagement [2][3]