Spatial distribution of wind erosion and its driving factors in China-中国期刊网

摘要 Basedonremotesensingandgeographicinformationsystem,thespatialdistributionofnation-widewinderosionisstudied,andthe1:100000nationalmapofsoilerosionbywindinChinaismade.Windspeed,soildryness,NDVI,soiltextureandtheslopeoflandsurfacearethekeyfactorstowinderosion.Therelationsbetweenwinderosionandeachfactorarediscussed.Themethodofprincipalcomponentisusedtopickuptheinformationincludedinthefivefactors,andthewinderosiondynamicindex(WEDI)isestablished.ItscomparisonwiththeRS/GISderiveddatashowsthatWEDIcanreflectthepotentialcapacityofsoilerosionbywind.Thedynamicprocessofthewinderosionisstudiedtorevealthedistributionofthemostintensewinderosionregionsandthedominantfactorsintheseregions.Allthesestudiesmaygreatlyhelpthemitigationofwinderosionofsoil.

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Spatial distribution of wind erosion and its driving factors in China

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Spatial distribution of wind erosion and its driving factors in China

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