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Abstract
The Argentinian Patagonia is a vast area (790,000-km2) of southern South America between 36° and 55°S. Almost 90% of the area is arid, semiarid or dry- subhumid (drylands) and covers important and heterogeneous ecological zones that are determined primarily by climatic gradients and a highly complex geomorphology. That gives rise to different soils (mainly Aridisols, Entisols and Mollisols) and vegetation types (semideserts, shrub steppes, shrub-grass [ver mas...]
dc.contributor.authorGaitan, Juan Jose
dc.contributor.authorBran, Donaldo Eduardo
dc.contributor.authorOliva, Gabriel Esteban
dc.date.accessioned2019-08-16T12:33:12Z
dc.date.available2019-08-16T12:33:12Z
dc.date.issued2019
dc.identifier.isbn978-0-12-409548-9
dc.identifier.otherhttps://doi.org/10.1016/B978-0-12-409548-9.11929-3
dc.identifier.urihttp://hdl.handle.net/20.500.12123/5639
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/B9780124095489119293
dc.description.abstractThe Argentinian Patagonia is a vast area (790,000-km2) of southern South America between 36° and 55°S. Almost 90% of the area is arid, semiarid or dry- subhumid (drylands) and covers important and heterogeneous ecological zones that are determined primarily by climatic gradients and a highly complex geomorphology. That gives rise to different soils (mainly Aridisols, Entisols and Mollisols) and vegetation types (semideserts, shrub steppes, shrub-grass steppes, grass-shrub steppes and grass steppes). Grazing (mainly sheep) and, to a lesser extent, fires are the principal anthropogenic stress factors that have dramatically altered the structure and functioning of these ecosystems. Climatic models predict an increase in aridity for Patagonian drylands, which could accentuate the negative effects of overgrazing on ecosystem health and reduce the capability of Patagonian ecosystems to provide essential services such as forage production and carbon sequestration. The adjustment of grazing management practices could mitigate negative effects but requires routine monitoring of ecosystem structure and functioning, for which the MARAS system (Spanish acronym for ‘Environmental Monitoring for Arid and Semi-Arid Regions’) has been developed.es_AR
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherElsevieres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceEncyclopedia of the World's Biomes (Reference Module in Earth Systems and Environmental Sciences) : 1-19 (2019)es_AR
dc.subjectDesertificaciónes_AR
dc.subjectDesertificationeng
dc.subjectZona Áridaes_AR
dc.subjectArid Zoneseng
dc.subjectMedio Ambientees_AR
dc.subjectEnvironmenteng
dc.subjectDegradación Ambientales_AR
dc.subjectEnvironmental Degradationeng
dc.subject.otherRegión Patagónicaes_AR
dc.subject.otherSistemas de Monitoreoes_AR
dc.subject.otherMARASes_AR
dc.titlePatagonian Desertes_AR
dc.typeinfo:ar-repo/semantics/parte de libroes_AR
dc.typeinfo:eu-repo/semantics/bookPartes_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEstación Experimental Agropecuaria Barilochees_AR
dc.description.filFil: Gaitan, Juan Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Luján; Argentinaes_AR
dc.description.filFil: Bran, Donaldo Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Laboratorio de Teledetección; Argentinaes_AR
dc.description.filFil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentinaes_AR
dc.subtypelibro


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