Abstract
Summary Climate is an important factor influencing the growth of trees, yet effects are often difficult to detect. Here we correlated 16 weather variables derived from a 32-year run from Ness Botanic Gardens with the annual tree ring growth increments for Pinus nigra (Arnold), growing nearby. Various temperature variables and water vapour pressure increased over the 32 years and were correlated with increased tree growth. Temperatures in spring, winter and autumn were more important than those in summer, and there was no relationship with rainfall. This may be because Pinus nigra was originally from the Mediterranean area and may be adapted to dry, warm climates. It may be possible to use dendrochronology of species such as P. nigra to track climatic change on a local scale.
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