What are the coal mining subsidence areas in Lieshan area?

Lieshan District is a jurisdiction of Huaibei City, and the coal mining subsidence area refers to the surface subsidence area caused by coal mining activities. Nanhu National Wetland Park, built on the coal mining subsidence area in Lieshan District, is a park with the main purpose of wetland ecological protection and restoration. Through scientific planning and management, the park has realized the ecological restoration and protection of coal mining subsidence areas, and provided citizens with a good place for leisure, sightseeing and popular science education. The completion of Nanhu National Wetland Park not only improved the ecological environment of coal mining subsidence area, but also promoted the development of local economy and the construction of ecological culture.