不同DEM分辨率下影响三台县水土流失的地形因子分析

Digital Terrain Analysis Based on Different DEM Resolution of Affecting Soil Erosion in Santai

地形因子是认识地形地貌特征的重要的参数。该文以三台县为例,基于不同分辨率下的DEM数据,提取坡度、坡向、曲率、地表粗糙度,对结果进行统计分析。分析结果不仅可以认识三台县的地形地貌特征,还可以为区域水土保持工作提供一定的依据。

Terrain factor is an important parameter to understand the features of topography and geomorphology.Taking Santai County as an example,the spatial resolution,based on the DEM data of different resolutions,extracted the slope,aspect,curvature and surface roughness,and analyzed the statistical results.The analysis results can not only recognize the features of topography and geomorphology in Santai County,but also provide a basis for regional water and soil conservation work.