THE INTENSITY OF JAPANESE STONE PINE RENEWAL IN CONNECTION WITH THE SEED YIELDS IN SOUTH YAKUTIA
Abstract
Despite the enormous covered areas and huge ecological significance, the processes of Japanese stone pine (Pinus pumila Regel) natural regeneration in connection with the influence of different biotic factors, compared to other woodland arborous kinds have been studied to a lesser extent. Analysis of the relationship between the number of annually appearing Japanese stone pine seedlings and cone yields over a twelve-year period was carried out in Southern Yakutia. To reconstruct the initial number of one-year seedlings of Japanese stone pine, a survival curve of its undergrowth was proposed. Using its coefficients and based on the age structure of the preserved undergrowth in the glades of maternal thickets, the dynamics of the number of generations of annual Japanese stone pine seedlings over the period under consideration was reconstructed. With a relatively smooth four-year cyclical dynamics of the yields of Japanese stone pine cones and significant fluctuations in some years of the reconstructed number of annual seedlings in this region, a reliable close connection their number with the yields of cones in the previous year was revealed
Keywords
About the Author
N. V. Tantsyrev
Botanical Garden of the Ural Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
202a, 8 Marta Str., Yekaterinburg, 620144
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Review
For citations:
Tantsyrev N.V. THE INTENSITY OF JAPANESE STONE PINE RENEWAL IN CONNECTION WITH THE SEED YIELDS IN SOUTH YAKUTIA. Conifers of the boreal area. 2022;40(1):54-59. (In Russ.)
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