Сводный каталог книг

[Текст] = Characteristics of the crown as the basis of the method for assessing damage to black alder stands : монография / E. Dmyterko. - Warszawa : Ins. badawczy lesnictwa, 2006. - 102 с. : ил., табл. - (Prace Instytutu badawczego lesnictwa. Rozprawy i monografie ; 5). - Библиогр.: с. 96-102. - 500 экз. - ISBN 83-87647-48-9 : 27.00 р.

УДК

634.9

Аннотация: Detailed measurements of 2,275 trees were carried out in 235 tree stands. Defoliation of the sun crown (Def) and tree vitality (Wit) were assumed as the main criteria of damage to trees and stands. The vitality criterion was applied in accordance with Roloff's classification modified to include the shape of the top part of the crown and its length as an auxillary criterion. Those criteria were used to formulate the synthetic index of tree damage Syn= (0,03.Def+Wit)/2.

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