Growth responses to climate and drought at the southernmost European limit of Mediterranean Pinus pinaster forests |
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| Institution: | 1. Escuela Técnica Superior de Ingeniería de Montes, Forestal y del Medio Natural, Universidad Politécnica de Madrid, 28040, Madrid, Spain;2. Instituto Pirenaico de Ecología (IPE-CSIC), Avda. Montañana 1005, 50059 Zaragoza, Spain;3. Dept. Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Crta. de Utrera, km 1, 41013 Sevilla, Spain;1. Hydrometeorological Research Centre of Russia, Bolshoy Predtechensky Lane 9/11, 123242 Moscow, Russia;2. P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Nakhimowskii Prospect 36, 117997 Moscow, Russia;3. Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Dendro Sciences Unit, 8903 Birmensdorf, Switzerland;4. Oeschger Centre for Climate Change Research, CH-3012 Bern, Switzerland;5. Global Change Research Centre AS CR, CZ-61300 Brno, Czech Republic;6. Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, 260 Donggang West Road, 730000 Lanzhou, China;1. DendroLab and Ecology, Evolution, and Conservation Biology Graduate Program, University of Nevada, Reno, NV 89557, USA;2. Department of Biology, University of Utah, Salt Lake City, UT 84112, USA;3. Center for Ecosystem Science and Society, Northern Arizona University, Flagstaff, AZ 86011, USA;4. School of Informatics, Computing, and Cyber Systems, Northern Arizona University, Flagstaff, AZ 86011, USA;5. Woods Hole Research Center, Falmouth, MA 02540, USA;6. Biology Department, University of New Mexico, Albuquerque, NM 87131, USA;7. USADA Forest Service, Rocky Mountain Research Station, Ogden, UT 84401, USA;1. National Research Institute of Rural Engineering, Water and Forestry (INRGREF), BP 10, Ariana, 2080, Tunisia;2. National institute of agronomy Tunis, BP 48, Tunis, 1082, Tunisia;3. Mediterranean Institute of Biodiversity and Ecology (IMBE), Aix Marseille University, Univ Avignon, CNRS, IRD, Arbois Mediterranean Europole, BP 80, 13 545 Aix en Provence Cedex 4, France;4. INRA, UR629, Ecology of Mediterranean Forests (URFM), Domaine Saint-Paul, 84 914, Avignon Cedex 9, France;1. Misión Biológica de Galicia - Consejo Superior de Investigaciones Científicas, 36143, Pontevedra, Spain;2. iuFOR-EiFAB, Campus Duques de Soria, Universidad de Valladolid, 42004, Soria, Spain;3. Joint Research Unit CTFC-AGROTECNIO-CERCA, Av. Alcalde Rovira Roure 191, E-25198, Lleida, Spain;4. Department of Crop and Forest Sciences, University of Lleida, Av. Alcalde Rovira Roure 191, E-25198, Lleida, Spain |
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| Abstract: | Climate warming and increasing aridity may negatively impact forest productivity across southern Europe. A better understanding of growth responses to climate and drought in southernmost populations could provide insight on the vulnerability of those forests to aridification. Here we investigate growth responses to climate and drought in nine Pinus pinaster (maritime pine) stands situated in Andalusia, southern Europe. The effect of climatic variables (temperatures and precipitation) and drought on radial growth was studied using dendrochronology along biogeographic and ecological gradients. We analyzed old native stands with non-tapped and resin-tapped trees mixed, showing their usefulness in dendroclimatic studies. Our results indicate a high plasticity in the growth responses of maritime pine to climate and drought, suggesting that site aridity modulated these responses. The positive growth responses to spring precipitation and the negative responses to summer drought were stronger in the more xeric inland sites than in wet coastal ones, in particular from the 1980s onwards. The characterization of tree species’ responses to climate at the southern or dry limits in relation to site conditions allows improving conservation strategies in drought-prone forest ecosystems. |
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| Keywords: | Maritime pine Dendroecology Drought SPEI Andalusia Climate change |
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