CAJ | 학술논문

以滇池常规的水质监测数据为基础，运用因子分析法对滇池1999-2008年的水质进行综合评价，并以水质综合评价得分作为监测点位的空间属性值，采用空间插值法定量分析10年间滇池水质的时空变化特征。研究期间内，滇池水质总体呈现不断恶化的趋势，氮磷污染一直是滇池的主要污染类型。滇池南部区域水质一直优于北部和中部区域，尤其是草海和外海交界区域的水质在全湖是最差的。南部片区水质在整个滇池最好，但也呈现出不断恶化的趋势。
이전지상규적수질감측수거위기출，운용인자분석법대전지1999-2008년적수질진행종합평개，병이수질종합평개득분작위감측점위적공간속성치，채용공간삽치법정량분석10년간전지수질적시공변화특정。연구기간내，전지수질총체정현불단악화적추세，담린오염일직시전지적주요오염류형。전지남부구역수질일직우우북부화중부구역，우기시초해화외해교계구역적수질재전호시최차적。남부편구수질재정개전지최호，단야정현출불단악화적추세。
The study on the long -term change of water quality in Dianchi Lake discloses the changes of water quality.It will provide a base for the water management of Dianchi Lake.Multivariate analysis was employed to e-valuate the water quality of Dianchi lake from the year of 1999 to 2008 based on the water monitoring data.The scores of the evaluation were exported as the attribute values of the monitoring sites in ArcGIS software.Inverse dis-tance weighted (IDW)method was adopted to quantify the spatial trends of water qualitiy of Dianchi Lake.The wa-ter quality of Dianchi lake has become worse and worse during the study period.Nitrogen and phosphorus have been the main pollutants.The water quality in the south of Dianchi lake is better than that in the center and the north.The intersection area between Caohai lake and Waihai lake had the worst water quality.Although the south-ern part of Dianchi lake had a better water quality relatively than other areas,the scores indicated a degrading trend from 1999 to 2008.