基于时空地质统计学的滇池水质时空分布模拟  

Using Space-time Geostatistics to Simulate the Distribution of Water Quality in Dianchi Lake

作　　者：刘春学[1] 杨树平[2] 李发荣[2] 

机构地区：[1]云南财经大学城市管理与资源环境学院,云南昆明650221 [2]昆明市环境监测中心,云南昆明650228

出　　处：《环境科学导刊》2009年第6期40-43,共4页Environmental Science Survey

基　　金：云南省应用基础研究项目(2008ZC064M)资助

摘　　要：使用滇池水域10个观测站（外海8个，草海2个）上TN、TP、CODMn、DO、BOD、叶绿素a等6个指标在2a间（2005～2006）每个月的观测数据，利用时空地质统计学计算了各指标的时空变异函数和进行了普通克立格估值。从结果来看，时空变异函数可以较好地刻划环境变量与时空变化之间的关系，能更精确地估计环境变量在时间和空间的分布。从各水质指标的模拟结果来看，滇池的污染严重区域主要为北部的昆明城区、东北部的呈贡、东部的大渔地区。Based on the data of 6 water quality indicators （TN, TP, CODMn. DO, BOD and Chl -a） which are measured from 10 observation sites very month from 2005 to 2006, space - time geostatistics is used to calculate the space -time semivariograms of the 6 indicators and estimate their space - time distributions. From the results, space -time geostatistics effectively described the dependence of environmental variables on space - timc varlety and accurately estimated their space - time distributions. The distributions of water quality indicators show that the pollutants of Dianchi lake are mainly from urban of Kunming with living and industry pollutants and Chenggong with agriculture pollutants and Dayu with industry pollutants.

关 键 词：时空变异函数 时空地质统计学 水质 时空分布 滇池 

分 类 号：X52[环境科学与工程—环境工程]