【摘要】 选择1997—2002年三门峡库区的龙门、潼关和三门峡3个断面的水质监测资料,运用季节性Kendall检验方法分析三门峡水库水质趋势,结果显示:龙门断面,CODMn、NO2-N及Hg的变化趋势不明显,NH3-N呈显著上升趋势,As、Cd和Cu呈显著下降趋势,而Pb则呈高度显著下降趋势;潼关断面,NH3-N、NO2-N和Hg的变化趋势不明显,CODMn呈显著上升趋势,As、Cd和Pb呈显著下降趋势,而Cu则呈高度显著下降趋势;三门峡断面,CODMn、NO2-N、As及Hg的变化趋势不明显,NH3-N污染呈显著上升趋势,Cd呈显著下降趋势,而Cu和Pb则呈高度显著下降趋势。更多还原

【Abstract】 The trend of the water quality of the Sanmenxia Reservoir is analyzed by seasonal Kendall test method, basing on the monitoring data from three transects of the reservoir:Longmen, Tongguan and Sanmenxia during 1997—2002. The conclusions are as follows:at the Longmen,the trends of COD_Mn, NO₂-N and Hg are not obvious, the pollution of NH₃-N has an obvious ascend trend, the pollutions of As, Cd and Cu have obvious drop trends, but the pollution of Pb has a very marked drop trend; at the Tongguan, the pollution trends of NH₃-N, NO₂-N and Hg are not obvious, the pollution of COD_Mn has an obvious ascend trend, the pollutions of As, Cd and Pb have obvious drop trends, but the pollution of Cu has a very marked drop trend; at the Sanmenxia, the pollution trends of COD_Mn, NO₂-N, As and Hg are not obvious, the pollution of NH₃-N has an obvious ascend trend, the pollutions of Cd has an obvious drop trend, but the pollutions of Cu and Pb have very marked drop trends.更多还原