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resumen

Resumen
Semiarid forests are worldwide threatened by land use changes, particularly agriculture. However, in some cases, due to particular economic or social processes, agriculture ends and forests may or may not recover to their original state. Using different databases and satellite images integrated into a geographical information system, we located in the central region of the semiarid Chaco forests of Argentina adjacent land use patches of secondary forest [ver mas...]
dc.contributor.authorBasualdo, María de los Angeles
dc.contributor.authorHuykman, Natalia
dc.contributor.authorVolante, Jose Norberto
dc.contributor.authorParuelo, José María
dc.contributor.authorPiñeiro, Gervasio
dc.dateinfo:eu-repo/date/embargoEnd/2020-02-28
dc.date.accessioned2018-10-18T13:44:24Z
dc.date.available2018-10-18T13:44:24Z
dc.date.issued2018-09
dc.identifier.issn0048-9697
dc.identifier.issn1879-1026
dc.identifier.otherhttps://doi.org/10.1016/j.scitotenv.2018.09.001
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0048969718334193
dc.identifier.urihttp://hdl.handle.net/20.500.12123/3629
dc.description.abstractSemiarid forests are worldwide threatened by land use changes, particularly agriculture. However, in some cases, due to particular economic or social processes, agriculture ends and forests may or may not recover to their original state. Using different databases and satellite images integrated into a geographical information system, we located in the central region of the semiarid Chaco forests of Argentina adjacent land use patches of secondary forest (SF), remnant forest (RF) and crops (CP). Using a chronosequence approach, we evaluated changes in the fraction of the photosynthetic active radiation absorbed by the vegetation (FAPAR) between SF and RF and CP, using the enhanced vegetation index (EVI). We evaluated both intra and inter-annual changes in EVI mean (EVImean), EVI maximum (EVImax), EVI minimum (EVImin), and EVI relative range (EVIrr) as descriptors of FAPAR dynamics and analyzed their changes through time (2000 to 2010) and their relation to rainfall. Secondary forests showed higher seasonality and higher EVImean values than RF, but differences disappeared as time since agricultural abandonment increased, suggesting that SF recover their functioning (when compared to RF) after 10 to 15 years. Our results suggest that Chaco's SF have intermediate seasonal patterns in-between RF and CP, as expected by successional theory, and that FAPAR interception by RF appears to be dependent on previous year's precipitation. We found that, although all land uses showed similar precipitation use efficiency (PUE), SF and cropland's productivity were less stable across the years and showed faster increases or decreases compared to RF, depending on precipitation (higher precipitation marginal response- PMR). Our results suggest that at least some aspects of ecosystem functioning can be restored after agricultural abandonment. Future research that combines floristic and structural changes is necessary to fully understand secondary forests regrowth process after agricultural abandonment in the Chaco region.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.rightsinfo:eu-repo/semantics/embargoedAccesses_AR
dc.sourceScience of The Total Environment 650 (1) : 1537-1546 (February 2019)es_AR
dc.subjectEcosistemaes_AR
dc.subjectEcosystemseng
dc.subjectBosqueses_AR
dc.subjectForestseng
dc.subjectCultivoses_AR
dc.subjectCropseng
dc.subjectOrdenación Forestales_AR
dc.subjectForest Managementeng
dc.subjectReforestaciónes_AR
dc.subjectReforestationeng
dc.subject.otherRegión Chaco Semiárido, Argentinaes_AR
dc.titleLost forever? Ecosystem functional changes occurring after agricultural abandonment and forest recovery in the semiarid Chaco forestses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/acceptedVersiones_AR
dc.description.origenEEA Saltaes_AR
dc.description.filFil: Basualdo, María de los Angeles. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Universidad Nacional de Santiago del Estero. Facultad de Ciencias Forestales. Instituto de Silvicultura y Manejo de Bosques (INSIMA); Argentinaes_AR
dc.description.filFil: Huykman, Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentinaes_AR
dc.description.filFil: Volante, Jose Norberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentinaes_AR
dc.description.filFil: Paruelo, José María. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Instituto Nacional de Investigación Agropecuaria. Estación Experimental La Estanzuela; Uruguayes_AR
dc.description.filFil: Piñeiro, Gervasio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentinaes_AR
dc.subtypecientifico


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