Blyshchyk I. The productivity and aboveground biomass of alder in the stands of Western Polissia of Ukraine

The dissertation presents the results of investigations of regularities concerning to the territorial, age, ecological forest evaluation distribution of alder stauds. It deals with the problem of substantiation and practical realization of standard-information providing with quantitative and qualitative evaluation of parameters of aboveground components of biomass for alder trees and stands in the forests of western Polissia of Ukraine. It's found out the relationship between indices of biomass for components of tree crowns and their dimensions, within natural and base density of wood, bark of trunks and wood in the bark are varied along a trunk and depended on a tree age. The experimental distribution data are estimated by statistical method. It is obtained bioproductive models of estimation of parameters of natural and base density of wood, bark of trunks and branches of trees. The average base and natural density of the components of avoveground biomass of alder has been determined. The percentage of leaf in the green and a mass of absolute dry matter in a fresh leaf were calculated. It's found out forest-evalnation's tables of the components of alder trees and stands biomass. Coefficients of relationships between aboveground biomass of trees and stork of stands in bark were calculated. The tables of carbon contain in aboveground biomass of alder were developed.