Soil erodibility mapping and its correlation with soil properties in Central Chile

Simple item page
dc.contributor.authorBonilla, Carlos A.
dc.contributor.authorJohnson, Odette I.
dc.date.accessioned2024-01-10T12:42:44Z
dc.date.available2024-01-10T12:42:44Z
dc.date.issued2012
dc.description.abstractIn the Revised Universal Soil Loss Equation (RUSLE), erodibility accounts for the influence of soil properties on soil loss during storm events in upland areas, which is represented by the soil erodibility factor (K). K-factor values are best obtained from long-term direct measurements on natural runoff plots; however, in the absence of field tests, these values can be estimated using relationships based on physical and chemical soil properties. Soil erosion by water is a major concern in Central Chile, and the application of many prediction technologies, such as the RUSLE, is limited due to the lack of information about erodibility factors. Because the direct measurement of K-factor values requires long-term erosion plot studies, the objective of this research was to use existing soil survey data to provide a first approximation of soil erodibility in the region and examine its relationship to soil properties in Central Chile. Erodibility values for a large variety of soil types and surface conditions (535 soil series) were calculated in this study, providing the first soil erodibility map for most of the country's cultivated land areas. Erodibility factors were calculated using two alternative relationships based on physical and chemical properties of surface soils. Results showed that the average K-factor value in the study area was 0.039 +/- 0.011 t ha h ha(-1) MJ(-1) mm(-1), and 67% of soils had values between 0.03 and 0.05 t ha h ha(-1) MJ(-1) mm(-1). The erodibility factors did not show a pattern with latitude or longitude mainly due to the lack of trends in the soil properties within the study area. Soil erodibility increased with silt content (r=0.607), and soil textures that contained predominantly silt as the primary particles were estimated to be the most vulnerable to water erosion. Organic matter content was not correlated to soil erodibility (r=0.086), and Mollisols and Entisols were the two only taxonomic orders that showed different erodibilities. The results of this study demonstrated the convenience of using silt content instead of clay, organic matter, or taxonomic order in preliminary classifications of water erosion vulnerability in Central Chile or areas with similar soil characteristics. (C) 2012 Elsevier B.V. All rights reserved.
dc.description.funderNational Commission for Scientific and Technological Research (Fondecyt-Conicyt, Chile)
dc.fechaingreso.objetodigital25-03-2024
dc.format.extent8 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.geoderma.2012.05.005
dc.identifier.issn0016-7061
dc.identifier.urihttps://doi.org/10.1016/j.geoderma.2012.05.005
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77536
dc.identifier.wosidWOS:000311875900013
dc.information.autorucIngeniería;Bonilla C;S/I;80465
dc.information.autorucAgronomía e Ing. Forestal;Johnson O;S/I;142287
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final123
dc.pagina.inicio116
dc.publisherELSEVIER SCIENCE BV
dc.revistaGEODERMA
dc.rightsacceso restringido
dc.subjectSoil erodibility
dc.subjectOrganic matter
dc.subjectSand fraction
dc.subjectRUSLE
dc.subjectChile
dc.subjectSPATIAL VARIABILITY
dc.subjectAGRICULTURAL SOILS
dc.subjectEROSION
dc.subjectCHINA
dc.subject.ods15 Life on Land
dc.subject.ods02 Zero Hunger
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa02 Hambre cero
dc.titleSoil erodibility mapping and its correlation with soil properties in Central Chile
dc.typeartículo
dc.volumen189
sipa.codpersvinculados80465
sipa.codpersvinculados142287
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
2024-03-25. Soil erodibility mapping and its correlation with soil properties in Central Chile.pdf
Size:
3.54 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Artículos de revistas