基于遥感测绘技术的土地重度污染区域检测方法研究  

Research on Detection Method of Severe Land Pollution Areas Based on Remote Sensing Surveying and Mapping Technology

作　　者：孙栋 Sun Dong(Qinghai Geographic Information Industry Development Co.,Ltd.,Xi ning 810001,China)

机构地区：[1]青海地理信息产业发展有限公司,青海西宁810001

出　　处：《环境科学与管理》2023年第12期113-117,共5页Environmental Science and Management

摘　　要：土地重度污染区域检测主要依托于层次分析法,易受污染信息数据离散性影响,导致检测准确度低。为此,研究基于遥感测绘技术的土地重度污染区域检测方法。通过制定遥感无人机的航飞方案与布设像控点,采集研究区域污染信息,编码离散的污染数据,计算差分近似值,结合动态协方差矩阵聚焦整合离散型污染信息数据,利用灰色模型检测污染区域差异性,获取边界值,实现土地重度污染区域检测。以某实际填埋场为研究对象,应用文章方法检测污染区域,结果表明,所提方法具有较高的检测准确度。The detection of land heavily polluted areas mainly relies on the analytic hierarchy process,which is easily affected by the discreteness of pollution information data,resulting in low detection accuracy.The detection method of land heavily polluted area based on remote sensing mapping technology is studied.By developing the flight plan of remote sensing UAV and arranging image control points,this study collects the regional pollution information and encodes discrete pollution data to calculate the difference approximation.Bu focusing and integrating discrete pollution information data with dynamic covariance matrix,using gray model to detect the difference of polluted areas,it obtains boundary values to detect the land heavily polluted areas.This method is used to detect the contaminated area in a real landfill site.The results show that the proposed method has high detection accuracy.

关 键 词：遥感测绘技术 土地重度污染 污染区域检测 检测准确度 

分 类 号：X830.3[环境科学与工程—环境工程]