RT info:eu-repo/semantics/article
T1 Inter-annual variability in Prosopis caldenia pod production in the Argentinean semiarid pampas: A modelling approach
A1 Risio Allione, Lucía
A1 Calama Sainz, Rafael
A1 Bogino, Stella Marys
A1 Bravo Oviedo, Felipe
K1 Productos forestales
AB The driest part of the Argentinean pampas is occupied by semiarid woodlandsdominates by Prosopis caldenia Burkart (Calden). Calden pods are a highly valuablefodder supplement for livestock but its production is highly variable. Our objective wasto analyze and model the temporal pattern in inter-annual variability of Calden podproduction. Our key hypothesis is that weather conditions are the main determinant of the pod masting behavior. Tree size and climatic variables were evaluated as explanatory covariates using a zero-inflated log-normal modelling approach. The proposed final model structure incorporated 25 parameters, including four variance components, two intercepts for both the logistic and the log-normal parts of the model, and nineteen parameters associated with fixed effects. Climate had a strong influence on the flowering-fruiting Calden process and on the inter-annual variability of the final pod production at the tree level. Temperatures during bud breaking, flowering and fruit shedding, together with the precipitation from the final month of fruit shedding and the total amount of the prior vegetative cycle, were the main weather covariates that affect the processes.
PB Universidad de Valladolid
YR 2016
FD 2016
LK http://uvadoc.uva.es/handle/10324/16905
UL http://uvadoc.uva.es/handle/10324/16905
LA eng
NO Journal of Arid Environments, August 2016, Vol. 131, Issue 4, pp 59-66
NO Producción Científica
DS UVaDOC
RD 24-abr-2024