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Authordc.contributor.authorSchaller, Mirjam 
Authordc.contributor.authorDal Bo, Igor 
Authordc.contributor.authorEhlers, Todd A. 
Authordc.contributor.authorKlotzsche, Anja 
Authordc.contributor.authorDrews, Reinhard 
Authordc.contributor.authorFuentes Espoz, Juan 
Authordc.contributor.authorVan der Kruk, Jan 
Cita de ítemdc.identifier.citationSOIL, 6, 629–647, 2020es_ES
Abstractdc.description.abstractWe combine geophysical observations from ground-penetrating radar (GPR) with regolith physical and chemical properties from pedons excavated in four study areas spanning 1300 km of the climate and ecological gradient in the Chilean Coastal Cordillera. Our aims are the following: (1) to relate GPR observations to depth-varying regolith physical and weathering-related chemical properties in adjacent pedons and (2) to evaluate the lateral extent to which these properties can be extrapolated along a hillslope using GPR observations. Physical observations considered include regolith bulk density and grain size distribution, whereas chemical observations are based on major and trace element analysis. Results indicate that visually determined pedolith thickness and the transition from the B to C horizons generally correlate with maximums in the 500 and 1000 MHz GPR envelope profiles. To a lesser degree, these maximums in the GPR envelope profiles agree with maximums in weathering-related indices such as the chemical index of alteration (CIA) and the chemical index of mass transfer (tau) for Na. Finally, we find that upscaling from the pedon to hillslope scale is possible with geophysical methods for certain pedon properties. Taken together, these findings suggest that the GPR profiles down hillslopes can be used to infer lateral thickness variations in pedolith horizons in different ecologic and climate settings, and to some degree the physical and chemical variations with depth.es_ES
Patrocinadordc.description.sponsorshipGerman Research Foundation (DFG) SPP-1803 KR 3725/11 SCHA 1690/3-1 EH329/17-2 German Research Foundation (DFG) DR 822/3-1es_ES
Publisherdc.publisherCopernicus Gesellschaft MBHes_ES
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile*
Link to Licensedc.rights.uri*
Keywordsdc.subjectGround-penetrating radares_ES
Keywordsdc.subjectCritical zonees_ES
Keywordsdc.subjectVegetation gradientes_ES
Keywordsdc.subjectChanging vegetationes_ES
Títulodc.titleComparison of regolith physical and chemical characteristics with geophysical data along a climate and ecological gradient, Chilean Coastal Cordillera (26 to 38 degrees S)es_ES
Document typedc.typeArtículo de revistaes_ES
dcterms.accessRightsdcterms.accessRightsAcceso Abierto
Indexationuchile.indexArtículo de publicación ISIes_ES

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Attribution-NonCommercial-NoDerivs 3.0 Chile
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile