Discussion on the system construction of ecological restoration for historical abandoned mines in key ecological region of the Yangtze river

Based on the overall layout of National Plan for the Protection and Restoration of Important Ecosystems(2021-2035),focusing on the key ecological region of the Yangtze river, taking the ecological restoration project at the historical abandoned mines for example in Honghe Hani and Yi Autonomous Prefecture, a comprehensive analysis was made about the types,quantities, land destruction and the major ecological problems of historical abandoned mines in the study area. “1+4+3”ecological restoration system construction suggestion was given.