Age structure of pine forests of SE "Shostka Forest Enterprise"
Journal Title: Лісівництво і агролісомеліорація - Year 2012, Vol 120, Issue
Abstract
Peculiarities of age structure of pine forests of Polissya has been investigated on example of SE "Shostka Forest Enterprise". Average age for natural forest stands is two classes higher than for artificial ones (92.4 and 66.6 years respectively). Average age for artificial and natural forest stands increases with increase of yield class (with decrease of productivity). Average yield class for all age classes is Іa for artificial stands and І for natural stands. Nomograms are evaluated and graphed for estimation of probability of natural and artificial forest stands survival during development for the most represented yield classes in the region of investigation (Ib, Ia, I and II). Survival of natural forest stands of all age classes is greater, than of artificial ones (particularly, in the age of 70 years old there are about 30 % of artificial stands and over 80 % of natural stands).
Authors and Affiliations
A. Tovstukha
Keywords
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