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resumen
Resumen
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
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dc.contributor.author | Gaitan, Juan Jose | |
dc.contributor.author | Bran, Donaldo Eduardo | |
dc.contributor.author | Oliva, Gabriel Esteban | |
dc.date.accessioned | 2019-08-16T12:33:12Z | |
dc.date.available | 2019-08-16T12:33:12Z | |
dc.date.issued | 2019 | |
dc.identifier.isbn | 978-0-12-409548-9 | |
dc.identifier.other | https://doi.org/10.1016/B978-0-12-409548-9.11929-3 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/5639 | |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/B9780124095489119293 | |
dc.description.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 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.format | application/pdf | es_AR |
dc.language.iso | eng | es_AR |
dc.publisher | Elsevier | es_AR |
dc.rights | info:eu-repo/semantics/restrictedAccess | es_AR |
dc.source | Encyclopedia of the World's Biomes (Reference Module in Earth Systems and Environmental Sciences) : 1-19 (2019) | es_AR |
dc.subject | Desertificación | es_AR |
dc.subject | Desertification | eng |
dc.subject | Zona Árida | es_AR |
dc.subject | Arid Zones | eng |
dc.subject | Medio Ambiente | es_AR |
dc.subject | Environment | eng |
dc.subject | Degradación Ambiental | es_AR |
dc.subject | Environmental Degradation | eng |
dc.subject.other | Región Patagónica | es_AR |
dc.subject.other | Sistemas de Monitoreo | es_AR |
dc.subject.other | MARAS | es_AR |
dc.title | Patagonian Desert | es_AR |
dc.type | info:ar-repo/semantics/parte de libro | es_AR |
dc.type | info:eu-repo/semantics/bookPart | es_AR |
dc.type | info:eu-repo/semantics/publishedVersion | es_AR |
dc.description.origen | Estación Experimental Agropecuaria Bariloche | es_AR |
dc.description.fil | Fil: Gaitan, Juan Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Luján; Argentina | es_AR |
dc.description.fil | Fil: Bran, Donaldo Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Laboratorio de Teledetección; Argentina | es_AR |
dc.description.fil | Fil: Oliva, Gabriel Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina | es_AR |
dc.subtype | libro |
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