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Grasslands comprise 85% of Southern Patagonia land area and play a critical role in the global carbon
cycle. We evaluated seasonal dynamics to identify differences in soil respiration rates between contrasting
grasslands across a climate gradient (rainfall), long term grazing intensity (moderate and high
stocking rates) and land uses (silvopastoral system, primary forest and grassland). Soil respiration varied
from 0.09 g CO2 h 1 m 2 in winter to a
[ver mas...]
dc.contributor.author | Peri, Pablo Luis | |
dc.contributor.author | Bahamonde, Héctor Alejandro | |
dc.contributor.author | Christiansen, Rodolfo | |
dc.date.accessioned | 2018-08-23T17:54:01Z | |
dc.date.available | 2018-08-23T17:54:01Z | |
dc.date.issued | 2015-08 | |
dc.identifier.issn | 0140-1963 | |
dc.identifier.other | https://doi.org/10.1016/j.jaridenv.2015.03.008 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/3167 | |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0140196315000828?via%3Dihub | |
dc.description.abstract | Grasslands comprise 85% of Southern Patagonia land area and play a critical role in the global carbon cycle. We evaluated seasonal dynamics to identify differences in soil respiration rates between contrasting grasslands across a climate gradient (rainfall), long term grazing intensity (moderate and high stocking rates) and land uses (silvopastoral system, primary forest and grassland). Soil respiration varied from 0.09 g CO2 h 1 m 2 in winter to a maximum of 1.43 g CO2 h 1 m 2 in spring. We found that the soil respiration rate was 30% higher in moderately grazed grasslands than in heavily grazed grasslands. Landuse changes showed that soil respiration followed the order silvopastoral system > native forest > grassland. While almost all plant and soil variables had a significant effect on soil respiration, soil carbon concentration, litter cover and depth and bare soil cover were the main factors explaining 78 e83% of the variance in soil respiration. Soil respiration rates were correlated strongly to air and soil temperatures and to a lesser extent with mean monthly rainfall and soil volumetric water content. The information provided in the present work about soil respiration is essential to estimate carbon balance for a range of important and widespread ecosystems in Patagonia. | eng |
dc.format | application/pdf | eng |
dc.language.iso | eng | |
dc.publisher | Elsevier | es_AR |
dc.rights | info:eu-repo/semantics/restrictedAccess | eng |
dc.source | Journal of arid environments 119 : 1-8. (August 2015) | eng |
dc.subject | Respiración del Suelo | es_AR |
dc.subject | Soil Respiration | eng |
dc.subject | Pastizales | es_AR |
dc.subject | Pastures | eng |
dc.subject | Factores Ambientales | es_AR |
dc.subject | Environmental Factors | eng |
dc.subject | Usos | es_AR |
dc.subject | Uses | eng |
dc.subject | Pastoreo | es_AR |
dc.subject | Grazing | eng |
dc.subject | Steppes | eng |
dc.subject | Estepas | es_AR |
dc.subject | Soil Water Content | eng |
dc.subject | Contenido de Agua en el Suelo | es_AR |
dc.subject | Temperature | eng |
dc.subject | Temperatura | es_AR |
dc.subject | Semiarid Zones | eng |
dc.subject | Zona Semiárida | es_AR |
dc.subject.other | Región Patagónica | es_AR |
dc.subject.other | Soil Moisture | eng |
dc.subject.other | Southern Patagonia | eng |
dc.title | Soil respiration in Patagonian semiarid grasslands under contrasting environmental and use conditions | eng |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | eng |
dc.description.origen | EEA Santa Cruz | es_AR |
dc.description.fil | Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | es_AR |
dc.description.fil | Fil: Bahamonde, Héctor Alejandro. Universidad Nacional de la Patagonia Austral; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. | es_AR |
dc.description.fil | Fil: Christiansen, Rodolfo. Universidad Nacional de la Patagonia Austral; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. | es_AR |
dc.subtype | cientifico |
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