| DEM内插方法对地形因子影响的研究 |
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| 引用本文： | 李国春,王维芳,王帮武.DEM内插方法对地形因子影响的研究[J].防护林科技,2013(6):21-23. |
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| 作者姓名： | 李国春 王维芳 王帮武 |
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| 作者单位： | 黑龙江省林业监测规划院;东北林业大学 |
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| 摘 要： | 随着数字化高程模型(DEM)的运用越来越广泛,关于DEM的研究也越来越多。以凉水国家级自然保护区的地形数据作为源数据,通过不同的内插方法得到DEM数据,再对DEM数据提取地形因子坡度和坡向,对比分析不同的DEM内插方法对地形因子的影响。结果表明:在坡度小于24°时,不同的DEM内插方法对坡度具有显著的影响;而大于24°时不同的DEM内插方法不会对坡度产生显著影响。
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| 关 键 词： | DEM 内插方法 坡度 坡向 |
Effects of DEM Interpolation Methods on Topographic Factors |
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| Li Guochun,Wang Weifang,Wang Bangwu.Effects of DEM Interpolation Methods on Topographic Factors[J].Protection Forest Science and Technology,2013(6):21-23. |
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| Authors: | Li Guochun Wang Weifang Wang Bangwu |
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| Institution: | 1.Heilongjiang Institute of Forestry Monitoring and Planning,Harbin 150080,China; 2.Northeast Forestry University,Harbin 150040,China) |
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| Abstract: | Nowadays,with the wide use of the DEM,more and more research have been taken on the DEM.Taking topographic data of Liangshui National Nature Reserve as the source data,DEM data were obtained by different DEM interpolation methods;slope and aspect were extracted from DEM data;effects of DEM interpolation methods on topographic factors were compared.Result shows that:different DEM interpolation methods have significant effects on slope while slope is less than 24°;different DEM interpolation methods have no significant effect on slope while slope is more than 24°. |
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| Keywords: | DEM interpolation methods slope aspect |
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