dc.creator | Peri, Pablo Luis | |
dc.creator | Bahamonde, Héctor Alejandro | |
dc.creator | Christiansen, Rodolfo | |
dc.date.accessioned | 2018-08-23T17:54:01Z | |
dc.date.accessioned | 2023-03-15T13:55:45Z | |
dc.date.available | 2018-08-23T17:54:01Z | |
dc.date.available | 2023-03-15T13:55:45Z | |
dc.date.created | 2018-08-23T17:54:01Z | |
dc.date.issued | 2015-08 | |
dc.identifier | 0140-1963 | |
dc.identifier | https://doi.org/10.1016/j.jaridenv.2015.03.008 | |
dc.identifier | http://hdl.handle.net/20.500.12123/3167 | |
dc.identifier | https://www.sciencedirect.com/science/article/pii/S0140196315000828?via%3Dihub | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/6206414 | |
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. | |
dc.language | eng | |
dc.publisher | Elsevier | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.source | Journal of arid environments 119 : 1-8. (August 2015) | |
dc.subject | Respiración del Suelo | |
dc.subject | Pastizales | |
dc.subject | Factores Ambientales | |
dc.subject | Usos | |
dc.subject | Pastoreo | |
dc.subject | Estepas | |
dc.subject | Contenido de Agua en el Suelo | |
dc.subject | Temperatura | |
dc.subject | Zona Semiárida | |
dc.subject | Soil Respiration | |
dc.subject | Pastures | |
dc.subject | Environmental Factors | |
dc.subject | Uses | |
dc.subject | Grazing | |
dc.subject | Steppes | |
dc.subject | Soil Water Content | |
dc.subject | Temperature | |
dc.subject | Semiarid Zones | |
dc.title | Soil respiration in Patagonian semiarid grasslands under contrasting environmental and use conditions | |
dc.type | info:ar-repo/semantics/artículo | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:eu-repo/semantics/publishedVersion | |