Core Insights - The Datu River in Qinghai has been recognized as one of the 47 exemplary cases in the fourth batch of beautiful rivers and lakes by the Ministry of Ecology and Environment, showcasing its water ecological environment governance and protection experience [1] Group 1: Environmental Management - The Datu River, a secondary tributary of the Yellow River, has faced biodiversity loss and soil erosion due to excessive development of small hydropower stations [1] - From 2021 to 2024, approximately 128 million yuan has been invested in ecological restoration, including the planting of over 100,000 wetland plants and the restoration of over 6,666 hectares of vegetation [1] - Nine small hydropower stations were dismantled, and seven were retained after rectification to ensure ecological base flow in the river basin [1] Group 2: Water Quality and Biodiversity - The ecological flow guarantee rate for the entire Datu River basin has reached over 90%, with 100% compliance in irrigation water quality for over 8,233 hectares of farmland and rural drinking water sources [2] - The natural shoreline rate has increased to 90.1%, and the populations of various bird species, including egrets and wild ducks, have significantly increased [2] - The water quality at the provincial boundary has remained stable at Class I or above for five consecutive years, and the vegetation coverage along the riverbanks has improved to 80% [2]

Core Viewpoint - The recognition of Hongfeng Lake as one of the 47 exemplary cases in the national Beautiful Rivers and Lakes initiative highlights significant progress in water ecological environment governance and protection in Guizhou Province, marking a new phase of large-scale and high-quality development in beautiful lake construction [1] Group 1: Environmental Achievements - Hongfeng Lake is located primarily in the Qingzhen City area, with a catchment area of 1,596 square kilometers and a water storage capacity of 589.6 million cubic meters [1] - The lake supplies over 800,000 tons of water daily to the Guiyang and Guian regions, serving as a crucial drinking water source for approximately 6 million residents [1] Group 2: Investment and Initiatives - Qingzhen City has invested 865 million yuan in ecological protection and restoration efforts, including the relocation of over 500 households from the first-level protection zone and the demolition of 122,000 square meters of illegal constructions [1] - The city has shut down 15 high-pollution enterprises and eliminated 176 livestock farms to reduce pollution emissions from the industrial sector [1] Group 3: Monitoring and Water Quality - A total of 133 new sewage treatment systems have been established, achieving full coverage of rural sewage collection and treatment along the lake [1] - An integrated monitoring network has been innovatively constructed, utilizing micro water quality stations, video surveillance, satellite remote sensing, and drone aerial inspections to ensure comprehensive and real-time water quality monitoring [1] - The water quality of Hongfeng Lake has remained stable at Class III standards, with the water intake point reaching Class II standards and a 100% compliance rate for water quality [2]