Modelling soil carbon content in South Patagonia and evaluating changes according to climate, vegetation, desertification and grazing

Vista sencilla de ítem
dc.contributor.authorPeri, P.L.es_ES
dc.contributor.authorRosas, Y.M.es_ES
dc.contributor.authorLadd, B.es_ES
dc.contributor.authorToledo, S.es_ES
dc.contributor.authorLasagno, R.G.es_ES
dc.contributor.authorPastur, G.M.es_ES
dc.date.accessioned6/22/2022 13:33
dc.date.accessioned2022-09-30T16:54:27Z
dc.date.available6/22/2022 13:33
dc.date.available2022-09-30T16:54:27Z
dc.date.issued2018
dc.description.abstractIn Southern Patagonia, a long-term monitoring network has been established to assess bio-indicators as an early warning of environmental changes due to climate change and human activities. Soil organic carbon (SOC) content in rangelands provides a range of important ecosystem services and supports the capacity of the land to sustain plant and animal productivity. The objectives in this study were to model SOC (30 cm) stocks at a regional scale using climatic, topographic and vegetation variables, and to establish a baseline that can be used as an indicator of rangeland condition. For modelling, we used a stepwise multiple regression to identify variables that explain SOC variation at the landscape scale. With the SOC model, we obtained a SOC map for the entire Santa Cruz province, where the variables derived from the multiple linear regression models were integrated into a geographic information system (GIS). SOC stock to 30 cm ranged from 1.38 to 32.63 kg C m-2. The fitted model explained 76.4% of SOC variation using as independent variables isothermality, precipitation seasonality and vegetation cover expressed as a normalized difference vegetation index. The SOC map discriminated in three categories (low, medium, high) determined patterns among environmental and land use variables. For example, SOC decreased with desertification due to erosion processes. The understanding and mapping of SOC in Patagonia contributes as a bridge across main issues such as climate change, desertification and biodiversity conservation. © 2018 by the authors.es_ES
dc.formatapplication/pdfes_ES
dc.identifier.doi10.3390/su10020438es_ES
dc.identifier.urihttps://doi.org/10.3390/su10020438
dc.language.isoenges_ES
dc.publisherMDPI AGes_ES
dc.rightsinfo:eu-repo/semantics/closedAccesses_ES
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/es_ES
dc.sourceSustainability (Switzerland)es_ES
dc.subjectEnergyes_ES
dc.subjectEnvironmental Sciencees_ES
dc.subjectSocial Scienceses_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.00es_ES
dc.titleModelling soil carbon content in South Patagonia and evaluating changes according to climate, vegetation, desertification and grazinges_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
Archivos
Bloque original
Mostrando 1 - 1 de 1
Miniatura
Nombre:
300. Modelling soil carbon content in South Patagonia and evaluating changes according to climate, vegetation, desertification and grazing.PDF
Tamaño:
1.35 MB
Formato:
Adobe Portable Document Format
Descargar
Colecciones
Artículo