| 基于DEM的延边地区农业地貌分类 |
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| 引用本文： | 李春景,南颖. 基于DEM的延边地区农业地貌分类[J]. 延边大学农学学报, 2006, 28(4): 229-232 |
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| 作者姓名： | 李春景 南颖 |
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| 作者单位： | 延边大学理学院,吉林,延吉,133002 |
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| 基金项目： | 国家电子信息产业发展基金 |
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| 摘 要： | 以1/200 000 DEM为数据资料,用ArcGIS软件对延边地区的高度、坡度、坡向等地形要素的定量分析进行了农业地貌分类.研究结果表明:延边地区平均高度691.81 m,平均坡度7.91°,4个方向的坡向面积比较均匀,高度较高、坡度较缓,广阔的平坦面积和高峻的山地面积很少,大部分由高原及台地地形组成.
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| 关 键 词： | 高度 坡度 坡向 农业地貌分类 |
| 文章编号： | 1004-7999(2006)04-0229-04 |
| 收稿时间： | 2006-10-11 |
| 修稿时间： | 2006-10-11 |
Agricultural terrain classification based on the DEM analysis of Yanbian area |
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| LI Chun-jing,NAN Ying. Agricultural terrain classification based on the DEM analysis of Yanbian area[J]. Journal of Agricultural Science Yanbian University, 2006, 28(4): 229-232 |
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| Authors: | LI Chun-jing NAN Ying |
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| Abstract: | The terrain characteristics including elevation,relief energy,slope etc in Yanbian area were analyzed quantitatively by using 1/25,000 DEM with ArcGIS software.The results showed that the average elevation of Yanbian area was 691.81 metres,and its average slope angle was 7.91.The comparison of the four slope directions was well contributed with higher elevation and gentler slope.There is little large smooth area,and high and steep mountain area in Yanbian area,most of which consists of plateau and platform. |
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| Keywords: | DEM |
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