Safety and efficiency of polish larch forest cultures сreated on the uprooted glade

Abstract

The paper presents the results of research of safety and productivity of 25-year-old Polish larch forest plantations established on the uprooted glade. F ound that this species has a high energy growth at a young age. Pine forest cultures in similar site cond itions are growing on I bonitet class. Polish larch in many biometric performances is greater than pine ordinary. Its average height is 1.4 times the average diameter 2.4 times higher than that of a pine forest cultures. Aver age larch trunk volume exceeds the benchmark by 7.2 times. Polish larch in 25 years is not inferior to the stock of pine ordinary. At the same time the density of pine plantations 7.2 times higher. Large stock of wood in the stand of Polish larch in 25 years is 37 m{3}/ha, and the number average particle size of timber higher than the target 11 times. Taxes cost of larch wood above the set four times. Stump extraction on the cutting helped to increase the safety of the Polish larch seven times.