中央纪委国家监委网站 李灵娜 自吉林报道 党的二十届四中全会审议通过的《中共中央关于制定国民经济和社会发展第十五个五年规划的建议》提出， 高质量推进高标准农田建设，加强黑土地保护和盐碱地综合利用，提升耕地质量。 2024年，我国粮食总产量首次超过1.4万亿斤。吉林省粮食产量也首次跨上850亿斤台阶，实现面积、单产、 总产"三增长"。粮食连年增产，一个重要增长极是吉林省持续加大对该省西部盐碱地综合开发利用。 盐碱地如何变为"米粮川"？吉林省通过谋划实施盐碱地综合利用土地整治项目，向盐碱地要粮，向科技要 粮。吉林省纪委监委对白城市人大常委会原副主任孟兆臣审查调查时发现，洮南市在引进社会资本参与土地 整治方面存在问题。其后，省纪委监委向白城市、洮南市等地制发纪检监察建议书，规范社会资本参与土地 整治。 "从签订的协议看，相关公司可在土地整治中自主选择发包单位，不走政府招投标程序，且将企业投资成本 不经相关程序全部返还给企业的做法值得商榷。"办案人员认为，企业实际投资额未经双方联合审计结算， 即行返还，增加了虚增投资成本和官商勾结的风险。从补充耕地指标净收益中返还发包单位的"约定"，为领 导干部插手项目建设行为提供了 ...

Core Insights - The project represents the first completed surface substrate survey in Northeast China's black soil region, covering 83 key protection counties and establishing a new model for farmland protection based on surface substrate [1][2] Group 1: Project Overview - The survey was led by the China Geological Survey and involved five organizations, taking three years to complete [1] - The investigation covered an area of 411,700 square kilometers, approximately 38% of the total black soil area in China [1] - A total of 711 personnel and 538 pieces of equipment were utilized, with 21,242 boreholes and 8,077 natural profiles and trenches completed [1] Group 2: Findings and Models - The survey quantified black soil resources for the first time, identifying a distribution area of 387,500 square kilometers, which is about 94% of the surveyed area [2] - The project established a stability evaluation model and a comprehensive quality evaluation model based on soil thickness, organic matter content, and nutrient levels [2] - The results indicated that 86.34% of the black soil area is stable or relatively stable, while 13,500 square kilometers face significant degradation risks [2] Group 3: Carbon Storage and Resource Potential - The project identified 13,600 square kilometers of potential backup arable land, primarily in Inner Mongolia, western Jilin, and southwestern Heilongjiang [3] - The total carbon storage in the surface substrate layer to a depth of 2 meters was calculated at 3.401 billion tons, with organic carbon storage at 2.117 billion tons [3] - The project developed a "3-level 5-category" classification system for surface substrates, enhancing the theoretical framework for soil management [3] Group 4: Future Directions - The surface substrate survey will expand its coverage to better understand black soil resources and establish a regular monitoring network [4] - The project aims to integrate with land spatial planning, agricultural layout, ecological restoration, and carbon assessment, promoting a shift from "surface management" to "substrate management" [4]

Group 1 - The Longcheng City Discipline Inspection Commission and Supervisory Committee have established a joint inspection team to monitor high-standard farmland construction in Yushu City, focusing on the sustainable use of black soil resources and food security [1] - A total of 540 projects and 60 subsidy funds related to black soil protection and utilization have been thoroughly investigated, with a focus on farmland protection, construction, and subsidy distribution [1] - The commission has created a special supervision work manual for black soil protection and utilization, conducting 39 inspections in 2024 and identifying 170 issues, with 146 issues rectified immediately [1] Group 2 - The Longcheng City Discipline Inspection Commission emphasizes case handling as a key approach to promote black soil protection, actively seeking problem leads from various sources [2] - A total of 295 problem leads related to black soil protection have been processed, resulting in 242 cases filed and 217 individuals receiving disciplinary actions [2] - The Yushu City Discipline Inspection Commission focuses on black soil protection and high-standard farmland construction, identifying regulatory blind spots and risks, leading to the investigation of illegal land occupation and the restoration of 102.27 acres of farmland [2] Group 3 - The Gongzhuling City Discipline Inspection Commission closely monitors responsibility implementation, project management, fund usage, and engineering quality in high-standard farmland construction [3] - A collaborative supervision mechanism has been established with various departments to enhance the effectiveness of supervision and address issues found during inspections [3] - The commission provides feedback on identified issues to responsible units and reports to city-level leaders, ensuring thorough rectification of problems [3]