“十四五”以来我国新增水土流失治理超28万平方公里

Core Viewpoint - Soil and water conservation is fundamental for river protection and management, with significant progress made in recent years in China, particularly during the 14th Five-Year Plan period [2][10]. Group 1: Achievements in Soil and Water Conservation - Since the beginning of the 14th Five-Year Plan, China has added 281,700 square kilometers of soil erosion control area [2]. - In the Yellow River basin, the area of soil erosion has decreased from 234,200 square kilometers in 2020 to 218,800 square kilometers in 2024 [4]. - By the end of 2024, the Three-North region will have treated 30,900 square kilometers of soil erosion, with new sediment interception capacity of 687 million tons from check dams [4]. Group 2: Specific Regional Efforts - The Danjiangkou Reservoir area, a key water source for the South-to-North Water Diversion Project, has seen 6,306 square kilometers of soil erosion treated, establishing a technical route for small watershed management [6]. - In the Northeast black soil region, 33,000 erosion gullies have been treated, and 2,119 ecological clean small watersheds have been constructed [8]. Group 3: Water Quality and Economic Impact - The water quality in Danjiangkou Reservoir has consistently met Class II surface water standards, with over 73 billion cubic meters of water supplied to the north over the past decade [8]. - Local initiatives have conducted over 60 transactions related to ecological product transformation in small watersheds, amounting to nearly 3 billion yuan [8]. Group 4: Future Goals and Management Improvements - By the end of 2024, the soil and water conservation rate is expected to increase to 72.83%, supporting high-quality water resource development and ensuring water security in China [10].