Maintenance and construction of territorial waters in secondary wetland driven by coal mining

摘要

Coal mining subsidence in high phreatic water level area often lead to heavy water-logging.Secondary wetland construction in the water-logging area is one of the important ways to create an ecological mining city and healthy-residing city.Territorial water plays a determined role in the structure and function of wetland ecosystem.The succession of water-logging area,reasonable construction of territorial water and its maintenance driven by coal mining are key factors which limited the construction of secondary wetland ecosystem in high phreatic water level mining area.According to the research results and their practices in the construction of secondary wetland in mining subsidence area of Tangshan South Lake,here we introduced ecological water recycle character driven by coal mining,construction technologies of secondary wetland,remediation and controlling technologies of water pollution,and maintenance technologies of water recycle in high phreatic water level area.This is one of the current hot research areas in ecological mining city.The research results and technologies can be expected to utilize in similar mining area.