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。
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), NO_2-N and Hg are not obvious, the pollution of NH_3-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 NH_3-N, NO_2-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), NO_2-N, As and Hg are not obvious, the pollution of NH_3-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.
出处
《地理与地理信息科学》
CSSCI
CSCD
北大核心
2004年第3期86-88,共3页
Geography and Geo-Information Science
基金
河南省自然科学基金项目(984070200)
