Abstract
The response of the indexed series of linear increments of Scots pine Pinus sylvestris L., 1753 (class Pinopsida , order Pinales , family Pinaceae ) to the current and preceding growing season precipitation in different biotopes of the Kerzhenskii state nature biosphere reserve and Polar Circle reserve is analyzed. For both reserves, a higher (but more stable in magnitude) variability of the increments as compared to wet and dry biotopes over the period of long-term observations is shown for fresh habitats. The results indicate availability of moisture resources in fresh biotopes in both reserves at the stages of renewal bud formation in the previous growing season and internode growth in the current year. Both for wet and dry habitats of the Kerzhenskii reserve, a positive correlation between the increments and total precipitation during the phenophase of internode growth and renewal bud formation is found. The climatic signal obtained in these types of the Kerzhenskii reserve habitats indicates that the lack of moisture is a limiting factor for the pine growth at the key stages of crown development...
Published Version
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