摘要：Scots pine is a widely distributed species in Latvia, stress tolerant and able to grow in poor habitats. Itis the dominating species of seacoast wooded dunes. Dunes in the Cape Kolka area are characterizedwith moving sand, resulting in stem burial of pines growing close to the beach. Main burial eventsare thought to occur during major storms, particularly as in 1967 - 1969. Th e aim of the study wasto evaluate the eff ect of burial and climatic factors on radial growth. Samples from pines growingalong the seaside under diff erent levels of sand burial were collected. Tree-ring width series werecrossdated and detrended chronologies were established. To evaluate growth relationships withclimate correlation analysis was performed. Release/suppression analysis was performed to evaluateburial eff ect. Burial aff ected radial growth both in unburied and buried parts of stem. Under deepburial (more than 0.6 m) the occurrence of missing tree-rings increased. Radial growth since stormsof 1967 - 1969 declined in pines blown over with sand. No major release periods were observed.Unburied pines also showed growth suppression dominating over release, especially during the lastforty years, which might be related with erosion of the Kolka coast, changing the abiotic factors. Latewinter and early spring temperatures were the main climatic factors aff ecting Scots pine growth ofunburied trees, but buried trees (parts of stems) showed weaker reaction to extreme temperatures.Precipitation had an insignifi cant infl uence, presumable due to a well-drained soil and suffi cientavailable moisture.
关键词：dendroecology; Pinus sylvestris; radial growth; sand burial in costal dunes; Scots pine
