RT info:eu-repo/semantics/article
T1 Drought impacts on tree growth of two pine species along an altitudinal gradient and their use as early-warning signals of potential shifts in tree species distributions.
A1 Marqués López, Laura
A1 Camarero, Jesús Julio
A1 Gazol Burgos, Antonio
A1 Zavala Gironés, Miguel Ángel de
K1 Basal area increment
K1 Dendroecology
K1 Drought stress: Pinus nigra subsp. salzmannii
K1 Pinus sylvestris
K1 Resilience
K1 Medio Ambiente
K1 Environmental science
AB Mediterranean pine forests are at risk of experiencing a decline in tree growth in response to climatewarming if rising temperatures amplify drought stress. In mountain areas, tree growth could be enhancedin temperature-limited high elevations, whilst it might decline at water-constrained low elevations.Species differential responses could, however, modulate the impact of drought on forests along altitudinalgradients. To test for evidence of species differential drought impacts along an altitudinal gradient, westudied the growth responses of two Iberian pine species (Pinus sylvestris and Pinus nigra) subjected toMediterranean conditions in Eastern Spain. We analysed the stability of growth (basal area increment)responses to climate and drought during the 1950&-2014 period by using resistance and resilience indices.Pinus sylvestris growth was enhanced by warm spring temperatures, while Pinus nigra growth wasimproved by a positive spring water balance. Pinus sylvestris growth decreased temporally at the lowerend of its altitudinal range, whereas Pinus nigra growth decreased at the upper end. Pinus sylvestris exhibitedlow growth stability at its low-elevation limit. Pinus nigra resistance also decreased along its altitudinalrange, but this effect was compensated by a high resilience. In mixed stands the results werecontrasting, with Pinus sylvestris (at the lower altitudinal range) being more vulnerable to droughtinducedgrowth decline than Pinus nigra (at the upper altitudinal range).
SN 0378-1127
YR 2016
FD 2016
LK http://hdl.handle.net/10017/37668
UL http://hdl.handle.net/10017/37668
LA eng
NO Ministerio de Economía y Competitividad
DS MINDS@UW
RD 29-abr-2024