RT Journal Article
T1 Contrasting holm oak provenances show different field performance but similar resilience to drought events eight years after planting in a Mediterranean environment
A1 Andivia Muñoz, Enrique
A1 Natalini, Fabio
A1 Fernández Martínez, Manuel
A1 Vázquez Piqué, Javier
A1 Alejano Monge, Reyes
AB Diversification of genetic plant material in forest plantations is viewed as apromising strategy to promote forest adaptation and resilience to ongoing climatechange. However, there is an intense debate about whether foreign populationsmight outperform local ones under new climatic conditions. Unfortunately,long-term experiments using contrasting provenances are scarce, especiallyin the Mediterranean region. In this context, the evaluation of the resistanceand resilience of individuals from different provenances to drought canhelp to forecast their performance under different climate change scenarios,and therefore to establish guideline regarding plant material selection in reforestationprojects. We evaluated the performance (survival and drought) anddrought sensitivity of Quercus ilex saplings from two contrasting provenancesgrowing during eight years in a common garden experiment. For this, we useda combination of dendroecological methods and water-relation measurements,such as leaf water potential (Ψpd), cuticular transpiration (Ec), relative watercontent at the point of stomatal closure (RWCc) and specific leaf area (SLA).We also compared the resilience and resistance, in terms of radial growth tothe intense drought event of 2012 between saplings from both provenances.Our results suggest a lack of idiosyncratic physiological response and growthsensitivity to drought between provenances. However, saplings from the drierprovenance showed a superior performance in terms of survival and growth.Survival was greater in saplings from the dry provenance (100 vs. 91 %). Meanannual basal area increment was also greater in saplings from the dry provenance(158.8 ± 13.5 vs. 96.2 ± 8.4 mm2), which resulted in greater diametereight year after planting (47.5 ± 2.8 vs. 38.3 ± 2.3 mm). The lower values ofΨpd, Ec and SLA in the summer of the first two years after planting suggest thatclimatic conditions after planting rather than isolated drought events was themost critical period for the success of these saplings. In view of our results,the selection of plant material for forest plantation should be carefully evaluatedin forest restoration projects, while priority should be given to those actionsoriented to increase the early survival of local Q. ilex seedlings.
PB Italian Society of Silviculture and Forest Ecology
SN 1971-7458
YR 2018
FD 2018-12
LK http://hdl.handle.net/10272/16033
UL http://hdl.handle.net/10272/16033
LA eng
NO Enrique Andivia, Fabio Natalini, Manuel Fernández, Reyes Alejano, Javier Vázquez Piqué. Contrasting holm oak provenances show different field performance but similar resilience to drought events eight years after planting in a Mediterranean environment. iForest vol. 11, 2018: 259-266. ISSN: 1971-7458 DOI: 10.3832/ifor2573-011
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026