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    • Tree-Ring Research, Volume 70 (2014)
    • Tree-Ring Research, Volume 70, Issue 2 (Jun 2014)
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    Site and age condition the growth responses to climate and drought of relict Pinus nigrasubsp. salzmanniipopulations in southern Spain

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    Author
    Navarro-Cerrillo, R.M.
    Sánchez-Salguero, R.
    Manzanedo, R.D.
    Camarero, J.J.
    Fernández-Cancio, A.
    Issue Date
    2014-07
    Keywords
    Andalusia
    climate change
    correlation function
    dendroclimatology
    drought stress
    Mediterranean forests
    Pinus nigra
    relict forests
    
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    Citation
    Navarro-Cerrillo, R.M., Sánchez-Salguero, R., Manzanedo, R.D., Camarero, J.J., Fernández-Cancio, A., 2014. Site and age condition the growth responses to climate and drought of relict Pinus nigrasubsp. salzmanniipopulations in southern Spain. Tree-Ring Research 70(2):145-155.
    Publisher
    Tree-Ring Society
    Journal
    Tree-Ring Research
    URI
    http://hdl.handle.net/10150/630506
    DOI
    10.3959/1536-1098-70.2.145
    Additional Links
    http://www.treeringsociety.org
    Abstract
    To assess if tree age may modulate the main climatic drivers of radial growth, two relict Pinus nigra subsp. salzmannii populations (María, most xeric site; Mágina, least xeric site) were sampled in southern Spain near the limits of the species range. Tree-ring width residual chronologies for two age groups (mature trees, age ≤ 100 years (minimum 40 years); old trees, age > 100 years) were built to evaluate their responses to climate by relating them to monthly precipitation and temperature and a drought index (DRI) using correlation and response functions. We found that drought is the main driver of growth of relict P. nigra populations, but differences between sites and age classes were also observed. First, growth in the most xeric site depends on the drought severity during the previous autumn and the spring of the year of tree-ring formation, whereas in the relatively more mesic site growth is mainly enhanced by warm and wet conditions in spring. Second, growth of mature trees responded more to drought severity than that of old trees. Our findings indicate that drought severity will mainly affect growth of relict P. nigra populations dominated by mature trees in xeric sites. This conclusion may also apply to similar mountain Mediterranean conifer relicts.
    Language
    en
    ISSN
    2162-4585
    1536-1098
    ae974a485f413a2113503eed53cd6c53
    10.3959/1536-1098-70.2.145
    Scopus Count
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    Tree-Ring Research, Volume 70, Issue 2 (Jun 2014)

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