矿区废弃地生态重建与耕地资源开发利用研究OACHSSCD

A key technical system for ecological reconstruction and farmland reshaping of abandoned mining areas has been developed to address issues such as substrate degradation,hydrological disorders,and ecosystem damage.In the practice of this technology system,the innovative application of the"source sink"matching soil allocation and the"engineering restoration+natural restoration"terraced field transformation model.The evaluation shows that after the application of this technology system,the ecological functions of abandoned mining areas have been significantly restored,soil erosion has been greatly reduced,and biodiversity has been significantly improved.Economic analysis shows that the addition of arable land not only has stable productivity,but also achieves significant comprehensive benefits far beyond investment through the trading value of arable land indicators supplemented by natural resources.