Growth response to climate and drought change along an aridity gradient in the southernmost Pinus nigra relict forests

Julio Camarero, J.; Manzanedo, Rubén D.; Sanchez-Salguero, Raúl; Navarro-Cerrillo, Rafael M. (2013). Growth response to climate and drought change along an aridity gradient in the southernmost Pinus nigra relict forests. Annals of forest science, 70(8), pp. 769-780. Springer 10.1007/s13595-013-0321-9

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Tree populations at the rear edge of species distribution are sensitive to climate stress and drought. However, growth responses of these tree populations to those stressors may vary along climatic gradients. To analyze growth responses to climate and drought using dendrochronology in rear-edge Pinus nigra populations located along an aridity gradient. Tree-ring width chronologies were built for the twentieth century and related to monthly climatic variables, a drought index (Standardized Precipitation-Evapotranspiration Index), and two atmospheric circulation patterns (North Atlantic and Western Mediterranean Oscillations). Growth was enhanced by wet and cold previous autumns and warm late winters before tree-ring formation. The influence of the previous year conditions on growth increased during the past century. Growth was significantly related to North Atlantic and Western Mediterranean Oscillations in two out of five sites. The strongest responses of growth to the drought index were observed in the most xeric sites. Dry conditions before tree-ring formation constrain growth in rear-edge P. nigra populations. The comparisons of climate-growth responses along aridity gradients allow characterizing the sensitivity of relict stands to climate warming.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Plant Ecology
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)

UniBE Contributor:

Delgado Manzanedo, Ruben

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

1286-4560

Publisher:

Springer

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

17 Feb 2014 10:07

Last Modified:

04 Jul 2017 13:17

Publisher DOI:

10.1007/s13595-013-0321-9

Uncontrolled Keywords:

Atmospheric circulation patterns, Dendroecology, Drought, Mediterranean forests, Standardized Precipitation, Evapotranspiration Index

BORIS DOI:

10.7892/boris.40904

URI:

https://boris.unibe.ch/id/eprint/40904

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