Open AccessScots pine (Pinus sylvestris L.) cultivation in Republic of Tatarstan
Author(s) -
Sergey Glushko,
Ilfir Galiullin,
Н. Б. Прохоренко,
Sh.Sh. Shaikhraziev
Publication year - 2020
Publication title -
lesnoj vestnik
Language(s) - English
Resource type - Journals
ISSN - 2542-1468
DOI - 10.18698/2542-1468-2020-6-26-33
Subject(s) - scots pine , deciduous , pinus <genus> , forestry , old growth forest , agroforestry , geography , environmental science , ecology , biology , botany
The state of coniferous-deciduous forests in the region of the subtaiga forests in Tatarstan directly depends on the prospects for preserving pines in the composition of these forests that is why the artificial forest regeneration and increasing the sustainability of Scots pine (Pinus sylvestris L.) becomes relevant. It is proposed to take measures for the formation of nominally primary forests, including those of artificial origin, based on pine forests, planted over a large area for several decades. Attention is drawn to the massive decrease in the density of stands in pine forests of artificial origin after they reach the age of 40...60 years. There is a complete death of pine crops or their degradation with a significant decrease in the density of forest stands. Analysis of the course of growth of pine crops reveals a sharp drop in volume growth rates at 20...30 years of age. A decrease in volume growth rates is recorded not only in Tatarstan, but also in a number of other regions located mainly in the zone of coniferous-deciduous forests. It is proposed to consider a sharp drop in volume growth rates as a sign of weakening of these stands, which may be associated not only with the onset of the age of natural maturity, but also with the aggravation of competitive relationships within forest communities. It is recommended to practice intensive artificial selection in pine plantations, for this purpose selection cutting of forests "according to state" in order to reproduce and preserve forests.