Xinhua News Agency, May 16, the executive committee of the Yangtze River Delta ecological and green integrated development demonstration zone held a press conference on the demonstration zone's water conservancy (affairs) field planning, action plan, and work norms of the United river and lake system. At the meeting, Lin Zexin, chief engineer of the Taihu Lake Basin Administration of the Ministry of Water Resources, introduced the Water Conservancy Plan of the Yangtze River Delta Ecological Green Integrated Development demonstration Zone (2021-2035). With the goal of building a harmonious ecological water network with high quality, the Plan makes it clear that by 2025, the demonstration area of ecological green integrated development in the Yangtze River Delta will comprehensively promote the construction of a harmonious ecological water network between human and water. Basically build a coordinated flood control and waterlogging control guarantee system, an interconnected water resources supply guarantee system, a water ecological environment protection and restoration system of co-protection and management, and an integrated water management system of joint discussion and management. The water area ratio of rivers and lakes increased from 20.3% to 20.61% (the water surface will increase by 7 square kilometers) By 2035, the "one network + four systems" in the demonstration area will be completed in an all-round way, taking the lead in realizing the modernization of water treatment system and capacity.