Repin E.N.
Успехи современного естествознания 2021; (2): 34-38
The article summarizes the introduction of three North American pine species (Pinus strobus L., p. banksiana Lamb., P. Contorta var. Murrayana Balf.) In the Primorsky Territory. The research was carried out in the arboretum of the Mountain taiga station in the period 1992-1994 and 2016-2018. The arboretum is located in a forest zone 25 km from the city of Ussuriisk. A comparative analysis of the climate of natural areas of pine trees and Primorsky Krai is given. The dynamics of plant development from the phase of bud swelling to lignification of shoots has been studied. The length and width of the needles and female cones were measured. The measurement results are accompanied by processing by the method of mathematical statistics. The existing differences in the climate of natural areas and in the place of introduction are not significant and do not lead to damage to the aboveground parts of plants. All three species of pine in an arboretum have a habit characteristic of the species, are characterized by a good state of health and the presence of stable seed production. Biometric parameters of pine species under conditions of introduction generally correspond to similar sizes in their natural range. The only exception is the length and width of the Pinus banksiana needles exceeds the size of this species in its natural range.The rhythm of seasonal development of introduced pines corresponds to the annual dynamics of the climatic situation in the Primorsky Territory, and its calendar dates are close to the dates of phenological phenomena of a local species - Korean cedar. A proposal is made to recommend Pinus strobus L., p.banksiana Lamb., P. contorta var. Murrayana Balf. as a silvicultural material to increase the biodiversity of recreational forests, forest park zones and green areas in settlements.
