| 基于DEM的西北干旱区坡度提取分析 |
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| 引用本文： | 李娟,赵军.基于DEM的西北干旱区坡度提取分析[J].北京测绘,2008(1). |
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| 作者姓名： | 李娟 赵军 |
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| 作者单位： | 西北师范大学地理与环境科学学院,甘肃兰州,730000 |
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| 摘 要： | 简要介绍了DEM及其获取方法以及坡度计算方法,通过选取西北干旱区具有代表性的丘陵地和平地作为试验区,建立数字坡度模型,研究了不同分辨率的DEM提取坡度的变化规律,并对坡度提取误差进行了分析,对西北干旱区进行与坡度有关的生态环境建设具有一定的参考价值。
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| 关 键 词： | DEM 西北干旱区 坡度提取 |
Slope-Extraction Analysis Of Northwest Droughty Area Based On DEM |
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| LIJuan,ZHAOJun.Slope-Extraction Analysis Of Northwest Droughty Area Based On DEM[J].Beijing Surveying and Mapping,2008(1). |
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| Authors: | LIJuan ZHAOJun |
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| Abstract: | This paper introduces DEM and the method of acquiring it and the method of calculating slope briefly.Through selecting the representative upland and flat of northwest droughty area as test region and building Digital Slope Model,this paper studies the variational rules of slope-extraction based on DEM with different resolution.We also analyze the error of slope-extraction.Which will be useful for northwest droughty area to construct its entironment that is related to slope. |
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| Keywords: | DEM |
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