Digital elevation models (DEM) used to assess soil erosion risks: a case study in Boyaca, Colombia

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dc.creatorJeiner Yobany Buitrago E.
dc.creatorLuis Joel Martínez M.
dc.date2016
dc.date.accessioned2026-07-07T02:43:17Z
dc.descriptionThe objective of this research was to develop a model for assessing the risk of erosion, exploring the potential of DEMs from SRTM, ASTER, ALOS PALSAR and one made with interpolation of a 1:25,000 contour map to calculate the variables of the relief that have greater impact on erosion. Several geomorphometric parameters, such as slope, aspect, profile and plan curvature, topographic wetness index, stream power index, and sediment transport capacity were computed from the DEM´s elevation, some fuzzy logic functions proposed to evaluate the incidence of each parameter on erosion risk in a mountainous area of Colombia. The results showed that the use of DEM data is a relatively easy, uncostly method to identify, in a qualitative way, the risk of erosion and contribute to the enhancement of erosion information that is obtained with conventional general soil surveys.
dc.formatapplication/pdf
dc.identifier0120-9965
dc.identifierhttps://www.redalyc.org/articulo.oa?id=180348900013
dc.identifierhttps://www.redalyc.org/journal/1803/180348900013/
dc.identifierhttps://www.redalyc.org/journal/1803/180348900013/html/
dc.identifierhttps://www.redalyc.org/journal/1803/180348900013/180348900013.epub
dc.identifierhttps://www.redalyc.org/journal/1803/180348900013/movil
dc.identifier.urihttp://hdl.handle.net/123456789/421815
dc.languageen
dc.publisherUniversidad Nacional de Colombia
dc.relationhttp://www.redalyc.org/revista.oa?id=1803
dc.rightsAgronomía Colombiana
dc.sourceAgronomía Colombiana (Colombia) Num.2 Vol.34
dc.subjectAgrociencias
dc.titleDigital elevation models (DEM) used to assess soil erosion risks: a case study in Boyaca, Colombia
dc.typeartículo científico

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Agronomía Colombiana - Universidad Nacional de Colombia