| 格网DEM在坡耕地调查中的应用——以庄河市为例 |
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| 引用本文： | 朱恒峰,尹怀宁. 格网DEM在坡耕地调查中的应用——以庄河市为例[J]. 国土资源科技管理, 2007, 24(2): 102-105 |
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| 作者姓名： | 朱恒峰 尹怀宁 |
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| 作者单位： | 北京师范大学,资源学院,北京师范大学,中国生态资产评估研究中心,环境演变与自然灾害教育部重点实验室,北京,100875;辽宁师范大学城市与环境学院,辽宁,大连,116029 |
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| 摘 要： | 以庄河市1:1万MapInfo地籍数据库为基础,利用地理信息系统软件MapInfo-VM建立格网DEM模型,并通过DEM计算派生出坡度等值面图,再结合矢量化地籍图和相关资料,应用地理信息系统空间分析功能,自动提取坡耕地数据.整个过程主要由计算机进行处理,人工干预少,效率高.
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| 关 键 词： | 数字高程模型 格网DEM 坡耕地 |
| 文章编号： | 1009-4210（2007）02-102-04 |
| 修稿时间： | 2006-10-12 |
Application of Grid-based DEM to Sloping Farmland Investigation in Zhuanghe City |
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| ZHU Heng-feng,YIN Huai-ning. Application of Grid-based DEM to Sloping Farmland Investigation in Zhuanghe City[J]. Scientific and Technological Management of Land and Resources, 2007, 24(2): 102-105 |
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| Authors: | ZHU Heng-feng YIN Huai-ning |
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| Affiliation: | 1. China Ecological Capital Assessment Research Center; MOE Key Laboratory of Environmental Change and Natural Disaster; College of Resource Science and Technology, Beijing Normal University, 100875, China; 2. College of Urban and Environment Science, Liaoning Normal University, Dalian, 116029, China |
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| Abstract: | On the basis of the cadastral database of one to ten thousand scale, Grid-based DEM is established by using Mapinfo-VM. Sloping contours is derived through calculation by DEM. By means of space-analysis of geographic information system,with the cadastral vectorgraphs and correlative data, sloping farmland data are automatically picked up. In the whole process,computer processing occupies the dominant position and human interference is suppressed. Therefore, the efficiency is high. |
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| Keywords: | digital elevation model grid-based DEM sloping farmlan |
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