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01.00.00 Physical-mathematical sciences
Description
The aim of work is to get prognostic equations, taking into account the natural growth of pine forest stands of Krasnoyarsk forest-steppe along with influence of forestry arrangements and elemental factors. Dependences of weight average diameter and mean square deviation from age and plantation density were received in the article.
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HORIZONTAL STRUCTURE OF STAND OF TREES IN MID-SIBERIA
06.00.00 Agricultural sciences
Description
Results of the long studies of the horizontal structure of different plantings in Mid-Siberia are presented in article. The horizontal structure of the plantings is characterized with significant variety of trees placing. Maximum full (normal) plantings of pines with uniform structure are characterized by casual trees placing. The modal plantings of pines with determined probability were characterized by group placing of trees. Cedar and fir plantings with different structure have a group distribution of trees and young plants that is normal for the nature of these woods.
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06.00.00 Agricultural sciences
Description
Models of model trees in the manner of equations for calculation of the current increase of trees at radius in cedar, mixed fir and pine plantings are received. At calculation of the current increase at radius and height using the diameter of a tree on height bosom without cortex, age tree and average distance from nearest tree on radius is recommended.
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Description
In the article it is offered to count the spatial sign with provision for mosaic-tiered structure of wood when estimating rising trees. It is noted that the diameter of stems has mediated (indirect) relationship with average distance to the nearest tree
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