中文摘要：

在淮南“潘谢”矿区选取5个站点（PXS-1、PXS．2、PXS-3、PXS-4和PXS-5），在淮北“朱-杨庄”矿区内选取东湖、中湖和南湖3个站点（HBDH、HBZH和HBNH），分析了两淮地区两个采煤沉陷积水区水系内不同水体营养盐在空间（不同区域）、时间（年龄和季节）上的分布特征．结果表明：PXS-1、PXS-3和HBDH等3个站点营养状态较高，属于“中度富营养化”水体，另外5个站点均处于“中营养-轻度富营养化”状态，淮南矿区水体营养水平总体高于淮北矿区．两淮沉陷区内水体氮磷比（N：P）较高，淮南水域在25～117，淮北在17～157，均具有明显的季节变化，生长季N2P低于其他季节；总磷（TP）中溶解无机磷酸盐（DIP）所占比例较小（两淮水体平均分别为15．4％和18．4％），NO3--N是溶解无机氮（DIN）的主要组分，两淮水域NO3--N占DIN的比例分别为74％和89％．相比沉陷积水年龄，人为活动可能是导致水体营养水平升高和富营养化进程加快的重要因素之一．

英文摘要：

A total of eight mining subsidence waters, including five sites in Huainan ＂Panxie＂ Min- ing Areas （PXS-1, PXS-2, PXS-3, PXS-4, and PXS-5） and three sites in Huaibei ＂Zhu-Yang zhuang＂ Mining Areas （HBDH, HBZH, HBNH） , were selected to study the nutrient temporal and spatial distribution and trophic states. Among the sites, three sites （ PXS-1, PXS-3, and HBDH） showed higher nutrient level and could be classified into moderate eutrophication, whereas the other five were in moderate nutrient level and mild eutrophication. Overall, the nutrient level of Huainan mining subsidence waters was higher than that of Huaibei mining subsidence waters. All the test samples in the two mining areas had a higher ratio of nitrogen to phosphorus （N：P）, being 25-117 in Huainan and 17-157 in Huaibei, and with a seasonal variety, the lowest in growth season. The dissolved inorganic phosphorus （DIP） in total phosphorous （TP） occupied a small percentage, be- ing averagely 15.4% and 18.4% in Huainan and Huaibei mining areas, respectively. Nitrate was the main specie of dissolved inorganic nitrogen （DIN） , with the ratio of nitrate to DIN being 74% and 89% in Huainan and Huaibei mining areas, respectively. Relative to the waters age, human activities could be one of the main factors responsible for the high nutrient level and the faster eu- trophication process of these waters.