Abstract
The mining of underground coal resources has a great impact on the ecological environment, especially in the high groundwater level area in the East, the mining subsidence has a more severe impact on the surface water, resulting in serious surface water, and the feasibility of restoring the original land function is poor. Based on the analysis of the characteristics of mining subsidence water, this paper puts forward the key technology of urban wetland construction, and analyzes it combined with engineering examples. The results show that: in the mining subsidence water area around the city, relying on the geographical advantages and abundant secondary wetland resources of coal mining subsidence, we can shape the regional tourism image, focus on the construction of Urban Wetland Park and ecological wetland, expand the urban service function of wetland in the aspects of leisure, tourism, education and tourism, as well as the rainwater storage and water purification function of wetland. This study provides a reference for the construction of similar mining cities.
Highlights
As a unique ecosystem formed by the interaction of water and land on the earth, wetland is known as "the kidney of the earth", "the birthplace of civilization" and "gene pool of species"
China has made some progress in many aspects of wetland research, but most of the research only focuses on the study of the ecological environment of the primary wetland [1,2,3,4]
The construction of urban wetland function in coal mining subsidence area must be based on the analysis of regional mining subsidence characteristics, detailed investigation and analysis of mining area geological and topographic characteristics, hydrological conditions and water distribution, regional mining and surface subsidence, coal mining planning and time sequence, etc., and combined with mining subsidence prediction, make clear the regional mining subsidence stability, and carry out governance zoning [5,6]
Summary
As a unique ecosystem formed by the interaction of water and land on the earth, wetland is known as "the kidney of the earth", "the birthplace of civilization" and "gene pool of species". It plays an irreplaceable role in resisting floods, regulating runoff, improving climate, controlling pollution, beautifying the environment and maintaining regional ecological balance. It is an important material basis for human survival and social sustainable development. How to coordinate the construction of the secondary wetland in the mining subsidence water area with the planning of coal mining and mining city construction, and realize the sustainable development of the wetland and the city is relatively less, which needs to be further strengthened
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