洱海地面水环境监测优化布点研究

Distribution Optimization for Environment Monitoring of Surface Water in Lake Erhai

根据１９８７年以后五年洱海水质监测数据的数理统计分析，选择污染指数大的ｐＨ、ＣＯＤ＿（Ｍｎ）、ＢＯＤ＿５、Ｔ－Ｎ、Ｔ－Ｐ进行单项方差分析，进而再进行灰色关联聚类分析和年际相关分析，确知洱海三个水质监测断面可归于一类。考虑水下地形、湖流、环湖工农业布局，水质监测点优化为两个即可保证其准确性、可控性和代表性。

Since 1980,three cross sections,nine vertical lines and 18 monitoring points have been established in Lake Erhai to monitor surface water.A great amount of moonitoring data has been accumulated to know about the change regulation of water quality in Lake Erhai.All this provide basis for optimizing distribution.