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- W2363699993 abstract "In order to study more about the determination of surface roughness,especially the surface roughness of the loess sloping field,the 1×2 m2 plots micro-scale surface topography was scanned with the help of laser scanner at a sub-centimetre scale under the condition of artificial simulated rainfall experiments with net rainfall intensity of 60 mm/h,90 mm/h and 120 mm/h,respectively.Digital elevation models(DEMs) were established subsequently with a spatial resolution of 2 mm×2 mm based on GIS technology in this study.Furthermore,a new and practical DEM-based method used for surface roughness determination under the support of GIS,has been presented,and its roughness value has been compared with the roughness value determined by chain at the same situation.The results showed:1) The surface roughness measured by improved method has a dispersion of small,operable,high efficiency,yet can not cause damage to the surface structure;2) Based on high-precision DEM,it′s roughness value can better reflect the actual state of the surface.This study provides a new approach for the determination of the Loess Plateau sloping field surface roughness,but also lays a foundation for the further surveying of surface roughness and its relationship with soil erosion process." @default.
- W2363699993 created "2016-06-24" @default.
- W2363699993 creator A5063935335 @default.
- W2363699993 date "2010-01-01" @default.
- W2363699993 modified "2023-09-23" @default.
- W2363699993 title "Surface Roughness Determination of the Loess Sloping Field Based on DEM" @default.
- W2363699993 hasPublicationYear "2010" @default.
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