控源头、防新增、重监管，济宁推进净土保卫战取得实效

Core Viewpoint - Jining City has made significant progress in environmental protection and green development through various measures aimed at ensuring agricultural product quality, human living environment safety, and groundwater ecological safety [1] Group 1: Soil Environmental Safety - Jining City has implemented classified management based on soil quality categories, focusing on heavy metal pollution source investigation and remediation, achieving full coverage in agricultural land soil heavy metal pollution tracing [3] - A total of 1,475 plots have been included in the national construction land soil environment management information system, with 1,420 plots completing investigation and remediation, making them safe for development [3] - The city has established a list of key regulatory units for soil pollution since 2018, managing 121 key industry enterprises and conducting environmental monitoring around 104 enterprises [4] Group 2: Groundwater Pollution Prevention - Jining City has implemented targeted management for groundwater quality, conducting assessments at hazardous waste disposal sites and chemical parks, and has completed detailed investigations in two provincial chemical parks [5] - The city has established a national groundwater pollution prevention pilot area, completing all 34 construction tasks and developing local standards for groundwater environmental background values [5] Group 3: Rural Environmental Improvement - The city has completed sewage treatment in 5,967 villages and addressed 975 rural black and odorous water bodies, being selected as a national pilot city for rural black and odorous water treatment [6] - Agricultural practices have been improved with a focus on reducing pesticide and fertilizer use, achieving a comprehensive utilization rate of over 90% for livestock waste [6] - The comprehensive utilization rate of straw has reached over 96%, with significant improvements in rural soil organic matter content [6]