应用遥感技术建立县级土地利用信息库

Establishing Information Database of Land Use For County Level Based on the Remote Sensing Technology

以延庆县为例,介绍根据TM、SPOT数据复合影像判读土地利用现状的方法。在遥感图像处理、解译的基础上,对各类土地利用的信息进行提取、数据库空间管理、面积求取工作,最后得到延庆全县耕地、园地、林地、水域、交通用地、居民用地、工矿用地以及未利用地等土地利用类型的遥感监测面积和地理分布情况,为县级土地利用现状调查提供方法上的参考和借鉴。

This paper introduces a method of interpreting the status of land use in Yanqing county, based on the complex images of SPOT and TM. Land use information extract, spacial management of the data base, and the areas calculation are made through treating and interpreting the remote sensing image. At last, the remote sensing monitoring areas and geographical distribution of each type of land use such as farmland, garden plot, forest land, water area, etc, were obtained. It provides references for the survey of land use status methodologically.