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Growth phenology adjusts to seasonal changes in water availability in coexisting evergreen and deciduous mediterranean oaks

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Forest Ecosystems 2023年第5期10卷 535-546页

作者： filipe campelo Alvaro Rubio-Cuadrado Fernando Montes Michele Colangelo Cristina Valeriano J.Julio Camarero Department of Life Sciences University of CoimbraCalçada Martim de FreitasCoimbra3000-456Portugal Departamento de Sistemas y Recursos Naturales Escuela Tecnica Superior de Ingeniería de MontesForestal y Del Medio NaturalUniversidad Politecnica de MadridCiudad Universitaria S/n28040MadridSpain Instituto Pirenaico de Ecología(IPE-CSIC) Avda.Montanana 1005E-50192ZaragozaSpain Departamento de Dinamica y Gestion Forestal Instituto de Ciencias Forestales(ICIFOR-INIA-CSIC)Ctra.La Coruna Km 7.528040MadridSpain Scuola di Scienze Agrarie ForestaliAlimentari e AmbientaliUniversita Della BasilicataViale Dell’Ateneo Lucano 1085100PotenzaItaly

Different leaf(evergreen *** habit)and xylem(***-porous wood)traits represent contrasting strategies to face seasonal changes in water availability and ***,how contrasting leaf and xylem habits of coexisting tree species affect stem wood formation and tree-ring development remains poorly ***,we investigated the spatio-temporal patterns of wood formation in two deciduous oaks(Quercus faginea and Quercus petraea)and two evergreen oaks(Quercus ilex and Quercus suber)coexisting in seasonally dry Mediterranean forests along an aridity gradient in *** hypothesized that growth responses to drought and intra-and inter-annual growth patterns would differ between functional *** simulated intra-and interannual growth using a modified version of the Vaganov-Shashkin(VS)process-based,growth *** VS model simulations were used to estimate growth changes under a high emission scenario(RCP 8.5)for the current distribution of the study oak species and to forecast their future performance under warm(4.8℃)conditions in the Iberian *** simulations indicate that climate warming would induce a shortening of the ringgrowth season and a reduction of radial growth in evergreen and deciduous Mediterranean oaks,particularly in dry sites from southern and eastern Iberia currently occupied by *** and *** oaks may better recover after dry periods than deciduous oaks by resuming growth after the summer *** soil water availability in spring would be more detrimental to growth of deciduous ***-based growth models should be refined and validated to better forecast changes in tree growth as a function of climate.

关键词： Process-based growth model Quercus ilex Quercus suber Quercus faginea Quercus petraea Tree-ring growth

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