Evaluation of water quality and eutrophication of coal mining subsidence wetlands
As the ecological wetland park designed for ecological restoration of coal mining subsidence areas , the water quality of the restored lake in PAH Wetland Park had attracted much attention. Thirteen sampling points were arranged in the north lake of PAH in October 2023 in this study, and 15 indicators, including redox potential, water temperature, pH, dissolved oxygen, conductivity, transparency, five-day biochemical oxygen demand, nitrite nitrogen, nitrate nitrogen, total nitrogen, ammonia nitrogen, total phosphorus, chlorophyll, chemical oxygen demand, and permanganate index were analyzed , and the water quality and eutrophication of coal mining subsidence wetland were evaluated. The result showed that the mean value of the Mero pollution index in PAH was 0.86, and its water quality was in a clean state. The mean value of the integrated nutrient level index was 59.98, and the north lake was in the state of mild eutrophication as a whole, and some of the physicochemical indicators of the north lake showed obvious spatial heterogeneity.
water quality evaluationevaluation of eutrophicationcomprehensive pollution level index
万方数据
维普
