摘要
以1:1万地形图(H-48-72-24)为研究区域,采用地理信息系统软件ARC/INFO数字化地形图生成数字高程模型,应用地理信息系统空间叠加功能进行坡度分析;结果表明,研究区域<25°的水田222.0hm2,占水田总面积的89.6%;>15°的旱地869.2hm2,占旱地面积的70.8%,其中>25°的旱地383.1hm2,占旱地总面积的近31.2%。
Taken1:10000Scale topographic map as an example,under the support of ARC/INFO software of GIS,through digitizing topographic map,This paper formed digital elevation model and had an analysis of slope.The results show that paddy fields are mostly distributed in the area whose slope<25°,The percentage of which are89.6%in the total area of Paddy Fields,and Its area is222.0hm 2 .The percentage of dryland whose slope>15°are70.8%in the total area of dryland,and its area is869.2hm 2 .The percentage of dryland which slope>25°are31.2%in the total area of dryland,and its area is383.1hm 2 .
出处
《国土与自然资源研究》
2004年第1期42-44,共3页
Territory & Natural Resources Study
基金
重庆市科委攻关项目(6217)
重庆市教委科技项目(011802)
