摘要
近年来滇池受到严重的环境污染困扰.应用Landsat7 ETM+影像对该流域水体进行最大似然分类、混合像元分解等方法进行比较,得到水体的藻类、悬浮泥沙、黄色物质的全湖相对丰度分布图,从中确定高浓度区域.从空间分布上分析,达到对滇池水体进行准确快速有效监测的目的,以期对滇池水体污染治理、恢复滇池流域生态脆弱区起到一定的指导意义.
In view of the Dian Lake water pollution problems, the application of ETM; image of the regional water monitoring and classifying is carried out based on maximum likelihood classification and mixed pixel decomposition methods. The lake algae, suspended sediment and yellow substance of the lake are analyzed from the relative abundance distribution. The area of high concentration is identified for Dian Lake water quality monitoring. With a view to Dian Lake water pollution monitoring, this paper provides references for recovery of regional ecological fragile region.
出处
《河南科学》
2012年第12期1749-1752,共4页
Henan Science
基金
国家自然科学基金(41101343)
昆明理工大学成矿动力学与隐伏矿预测创新团队资助(2008)
关键词
最大似然法
混合像元分解
水体分类
滇池
maximum likelihood classification
mixed pixel decomposition
classification of water types
Dian Lake
