【摘要】 以延安市宝塔区为例,利用遥感土地利用分类图和数字地形图,在地理信息系统ARC/INFO和遥感图像处理系统ERDASIMAGINE的支持下,进行坡度计算,通过对土地利用类型图和坡度图的复合分析,编制坡耕地专题图,统计不同坡度的耕地面积。该方法可为其它地区坡耕地调查分析提供借鉴。更多还原

【Abstract】 In this paper, by using TM image and digital relief map, the interpretation of land use classification and the calculation of slope are made for Baota district in Yan’an, with the software of ARC/INFO and ERDAS IMAGINE. And moreover, the sloping cultivated land is mapped, based on the composite analysis of land use map and slope map.更多还原