Parpan T. Bioecological characters of Silver fir (Abies alba Mill.) in the forest biogeocenosises of Prykarpattya (genesis, regeneration, prediction).

Object is the native born and transformed wood biogeocenoses of Prykarpattya including Silver fir. The aim is to analysis of bioecological features Silver fir in wood biogeocenoses of Prykarpattya and substantiation of rational usage of forests of Silver fir. Methods - ecomonitoring, genetical-developmental, structural - biogeocenosises, microsystem, mathematical modelling. Analysis of bioecological characters of Silver fir from the position of the species' systematization is given in the thesis. Silver fir migration to the territory of Ukrainian Carpathians and Prykarpattya shows on the base of genetical analysis results, which had a place by two ways. The number, structure and vitality of its juvenile and virgin generations in the aboriginal and transformed biogeocenosises is studied too. The spectrum of ontogenetic statuses for Silver fir ceno-populations is charactered. The microecosystem analysis of its cenosises structure effect on biometric parameters of the Abies alba advance growth was surveied in the transformed stands. Successions' prediction in the aboriginal and transformed forest biogeocenosises with Silver fir was realized using FORKOME model. Ecological principles of the Abies alba biogeocenosises conservation on Prykarpattya are suggested taking into consideration its spectrum of ontogenetic statuses. Sphere - forest - usage, reafforestation.