Core Viewpoint - Beijing is actively promoting urban water conservation through integrated measures, significantly reducing water consumption in economic activities over the past decade, with a 33.7% decrease in water usage per unit of GDP and a 61.3% decrease in water usage per unit of industrial added value [1][6][17] Group 1: Rainwater Collection and Management - The 京张铁路遗址公园 (Jingzhang Railway Ruins Park) features a rainwater collection system that acts like a sponge, absorbing rainwater to reduce flooding risks in the area [1][3] - The park includes four large water storage modules that filter and purify rainwater, allowing it to seep into the ground and replenish underground water sources [3][4] - The park's design incorporates sunken green spaces to gather rainwater, with a total area of approximately 3,820 square meters dedicated to this purpose [4][6] Group 2: Reclaimed Water Utilization - Four reclaimed water plants along the 清河 (Qinghe) river supply nearly 900,000 tons of reclaimed water daily, improving the water quality to meet surface water Class IV standards [8][10] - The 清河之洲 (Qinghe Zhi Zhou) area has transformed from a polluted site to a green space, utilizing reclaimed water for irrigation and enhancing biodiversity [8][10] Group 3: Promotion of Water-Saving Devices - The city plans to replace over 50,000 water-saving devices in households by the end of 2024, promoting the use of efficient water fixtures [17] - The initiative includes a trade-in program for various water-efficient products, with over 2 million yuan allocated for subsidies [17] - The city has also reduced the public water supply network leakage rate to 8.44% through infrastructure improvements [17]