Girs O. Ripeness of forest stands and scientific bases of the prediction of the use of arboreal resources in the forests of different purpose

The results of the research work are directed on the developing of theoretical bases and new methodological approaches for justification ages of ripeness of forest stands. New approaches are also directed on differentiation of economic sections and organization of economies based on environmental protection, the prediction of forest exploitation, and the development of normatively certificate base for material and monetary estimation of commodity structure of plantings. At work is grounded the conception of organization of highly productive economic sections with the high age of ripeness in oak forest stands of seminal origin that are intended for growing high-quality sortiments of the greatest cost. A project that justifies ages of maturity trees of major forest stands in forests of different functional purpose has been developed. It is proposed to set age of ripeness in economies on the basis of calculations based on differentiation of technical and economic forest's ripeness taking into account the productivity of forest stands, biological features of arboreal breeds, and relevant for them forest's plantings conditions. The long-term calculations of forest use based on the preservation and enhancement of the environmental functions of forests showed that planned increase of ages of deck-houses of the main use during the first 10-years-old period is accompanied by a significant decrease of annual calculating cutting area in oak and pine forest stands, however in subsequent is observed its significant growth. Economic effect from the forest use by specified ages of ripeness of the oak forest stands of seminal origin comes: at the actual sortiment's structure of logging-offs in 65 years and at their optimum structure - in 58 years. But calculations have not taken into account the increase of useful functions of the forest, which are not evaluated in money equivalent. The proposed organization of economy in the forests of Derzhkomlisgosp of Ukraine during forty years of managing will increase the barrel supply of wood in the forests to 12,5 %, that in the case of real implementation of decisions of the Kyoto Protocol will allow Ukraine to receive additionally about two milliards of dollars.