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Conifers of the boreal area

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 FORECAST OF PINE STAND BLACK TOP  Download PDF (75 KB)

A.A. Vajs

 Siberian State Technological University,
82 Mira Ave, Krasnoyarsk, 660049, Russia

 Volume XXIV, Number 2, 2006   


Abstract

 In clause questions of dynamics of a dead wood of pine planting since 42 years for 71 year are considered. Interest of a dead wood on quantity of trees varies in dynamics with 3,3 up to 77,7 %. The dead wood with age from minimal diameters passes average in a step. On the basis of size of a mistake it is proved, that the quantity of models of trees of a dead wood should be more, than for growing trees. In sizes of the average sizes of growing trees and a dead wood distinctions that with age smooth out are observed. Use of the plural linear equation has not brought effective result at the forecast of a dead wood. The dot method therefore was applied. As boundary value used the top border of average parameter of general set at probability 0,954 - X ± 2*mx. Thus were authentically classified as growing 54-81 % of trees, and as a dead wood of 60-77 %. Erroneous identification of plants as growing, has made 19-53 %, and for trees of a dead wood of 23-39 %.

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