丽江筑牢长江上游重要生态安全屏障

Core Viewpoint - The ecological environment quality in Lijiang, Yunnan Province, has shown significant improvement, with a focus on protecting air, water, and soil quality, thereby establishing a crucial ecological safety barrier in the upper reaches of the Yangtze River [2][3][4][5] Air Quality Protection - Lijiang has implemented the "Action Plan for Continuous Improvement of Air Quality," ensuring clear responsibilities for air pollution prevention and control [3] - The city has maintained a 100% good air quality rate for nine consecutive years, with PM2.5 concentration averaging 13.7 micrograms per cubic meter, ranking second in the province [2] Water Quality Protection - The city has established a comprehensive management system for rivers and lakes, appointing 1,062 river and lake chiefs to oversee 597 water bodies [4] - The water quality of major water sources is high, with a 91.4% good water quality rate for city-controlled rivers and 100% compliance for drinking water sources [2][4] Soil Quality Protection - Lijiang has completed risk control for nine heavy metal waste storage sites and achieved a 100% completion rate for safe utilization of contaminated farmland [5] - The city has also made significant progress in wastewater treatment, with a 71.08% treatment rate for domestic sewage in 322 administrative villages [5]