Abstract:
The water eutrophication of subsidence water area is severe. By using multi-temporal and multi-source remote sensing image data, inversion models for water eutrophication indicators (mass concentration of nitrogen and phosphorus, chlorophyll a,suspended solids,colored soluble organic matter,and water transparency,etc. ) is constructed,thereby achieving dynamic,accurate,and efficient monitoring of the water eutrophication status of subsidence water area. Based on the relevant literature on remote sensing monitoring of water eutrophication indicators in coal mining subsidence water area in the past 20 years,this study systematically reviews the research status of three aspects,including water eutrophication characteristics in coal mining subsidence water area, commonly used data sources for remote sensing monitoring, and inversion models for water eutrophication indicators. The problems of remote sensing technology in water eutrophication monitoring of subsidence water area are summarized,and the future development trend is put forward, which can provide reference for the application of remote sensing monitoring of water eutrophication indicators in coal mining subsidence water area.