Timing sequence arrangement for abandoned mine restoration in Nan'an City, Fujian Province

Through remote sensing image interpretation and field investigation of abandoned mines in Nan'an City, as many as 945 damaged lands in abandoned mines in Nan'an were found, mostly with the characteristics of large destructive intensity and wide area, causing a terrific negative impact on the local ecological environment. In order to rationally allocate local resources for the ecological rehabilitation of mine, according to the characteristics of abandoned mines in Nan'an and their main adverse impacts and the principle of "Priority should be placed in ecology, safety and natural rehabilitation", the rehabilitation sequence of abandoned mines has been evaluated from multiple dimensions including natural recovery capacity, geological safety, environmental impact on the watershed and visual pollution. This study provides reference for ecological rehabilitation of abandoned mine lands in Nan'an City.