【摘要】 根据光伏电站所在7个沉陷湖面及周边地表水和地下水的水生态环境数据，分析水面光伏建设后采煤沉陷积水区水生态环境现状与富营养化程度，并为保护采煤沉陷积水区水生态环境提供合理的建议。结果表明：1、 2、 3、 6、 7号塘水质处于中营养状态，4、 5号塘与周边地表水处于轻度富营养状态；4、 5号塘营养状态指数偏高与水产养殖有关，周边地表水营养指数偏高受农业活动影响，周边水体对沉陷积水区水体富营养化影响不大。可采取在周边农田使用农家肥，控制3、 4、 5号塘鱼饵和饲料投放，修建小型拦洪沟和排水渠以及加高堤坝或路面等对策治理水生态环境。更多还原

【Abstract】 Based on the water eco-environment data of the seven subsidence lakes where the photovoltaic(PV) power station was located, as well as the surrounding surface water and groundwater, the current state and degree of eutrophication of the coal mining subsidence waterlogged areas after the construction of the floating PV system were analyzed. Reasonable suggestions for protecting the water ecological environment of the coal mining subsidence waterlogged area were provided. The results showed that ponds 1, 2, 3, 6, and 7 were mesotrophic, whereas ponds 4 and 5 and the nearby surface water were mildly eutrophic; the elevated trophic-state indices in ponds 4 and 5 were linked to aquaculture activities, the high nutrient index of the surrounding surface water was influenced by agricultural activities, and the surrounding water bodies had a minimal impact on the eutrophication of the subsidence waterlogged area water bodies. The water eco-environment can be improved by suggesting the use of organic manure in surrounding farmlands, controlling the input of fish bait and feed in ponds 3, 4 and 5, constructing small floodways and drainage ditches, and raising the height of embankments or road surfaces.更多还原