Spatiotemporal variability of stone pine (Pinus pinea L.) growth response to climate across the Iberian Peninsula

Natalini, Fabio; Alejano, Reyes; Vázquez-Piqué, Javier; Pardos, Marta; Calama, Rafael; Büntgen, Ulf (2016). Spatiotemporal variability of stone pine (Pinus pinea L.) growth response to climate across the Iberian Peninsula. Dendrochronologia, 40, pp. 72-84. Elsevier 10.1016/j.dendro.2016.07.001

[img] Text
1-s2.0-S1125786516300777-main.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (4MB) | Request a copy

Climate warming and increasing aridity have impacted diverse ecosystems in the Mediterranean region since at least the 1970s. Pinus pinea L. has significant environmental and socio-economic importance for the Iberian Peninsula, so a detailed understanding of its response to climate change is necessary to predict its status under future climatic conditions. However, variability of climate and uncertainties in dendroclimatological approach complicate the understanding of forest growth dynamics. We use an ensemble approach to analyze growth-climate responses of P. pinea trees from five sites along a latitudinal gradient in Spain over time. The growth responses to April-June precipitation totals were stronger in the north than in the south. Since the 1950s, the sensitivity of growth to April-June precipitation increased in the north and decreased in the south. Meteorological drought usually started in May in the southern sites, but in June-July in the northern sites. The water deficit in the southern sites is thus greater and more limiting for tree growth, and this likely accounts for the lower growth sensitivity during these months. Our results indicate that P. pinea has a high degree of plasticity, suggesting the species will withstand changing climatic conditions. However, growth response to drought regimes varies among P. pinea populations, suggesting that different populations have different capacities for acclimation to warmer and drier climate, and this may influence future vegetation composition.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR)
08 Faculty of Science > Other Institutions > Teaching Staff, Faculty of Science

UniBE Contributor:

Büntgen, Ulf

Subjects:

500 Science
500 Science > 550 Earth sciences & geology

ISSN:

1125-7865

Publisher:

Elsevier

Language:

English

Submitter:

Monika Wälti-Stampfli

Date Deposited:

14 Feb 2017 15:15

Last Modified:

14 Feb 2017 15:15

Publisher DOI:

10.1016/j.dendro.2016.07.001

BORIS DOI:

10.7892/boris.93547

URI:

https://boris.unibe.ch/id/eprint/93547

Actions (login required)

Edit item Edit item
Provide Feedback