3S技术在梓潼县农村土地调查中的应用

Study on Application of the 3S Technology on Zitong County Rural Land Survey

以四川省梓潼县为例,利用MAPGIS图像处理系统通过对遥感图像进行图像增强、图像几何校正、融合等处理,得到1∶1 0000正射遥感图像。对梓潼县所辖区域农村土地进行实地外业踏探,建立土地分类的影像解译标志。此外,运用MapGIS图形编辑系统,通过人机交互目视解译,对目标地物分层矢量化,提取梓潼县农村土地利用现状信息,并在此基础上建立了农村土地调查数据库,为当地土地资源的科学开发利用提供了基础数据。

Taking Zitong County of Sichuan Province as an example, the paper obtain 1 ：10000 DOM Image by enhancement, geometric correction and integration of RS image which uses the MapGIS imagery processing system. And we investigate all the rural land and establish the interpretation symbol of the land classification in Zitong County. Moreover, using MapGIS Graphic editor system, it visually interprets the RS image by man-machine interaction, layers and vectors the target thing, withdraws the present situation information of the land utilization in Zitong. Finally it establishes the database of rural land survey and provides the basic data for the development and utilization of the land resources in Zitong County.