Volodymyrenko V. Peculiarity of growth and prognosis of productivity of Spruce modal artificial tree stands in Ukrainian Carpathians

Object - the processes of growth at artificial Carpathians forest stands that grow in different forest types. Purpose - development of theoretical base and standard and reference data for inventory and actualization of main inventory characteristics of Carpathians artificial Spruce forests that grow in Spruce, sub-Spruce and Beech, sub-Beech forest types. Methods - a system approach was used as base for theoretical and methodical researches. Calculations were fulfilled on the ground of database of temporal sample plots and forest inventory database "Plot inventory forest characteristics" that is part of the information system "Management of the forest resources" belongs to forest inventory enterpriseUkrderzlisproject". Design and modeling of relations between inventory characteristics of modal stands, calculation of biometrics indexes, statistics of distribution rows were carried out by statistical methods, namely by the regression analysis. Estimation of fitness and adequacy of models was provided bythe standard methods of mathematical statistics. For comparison of the results, graphical and analytical methods were used. Novelty - a reliable difference in growth of Spruce forest stands in different forest types groups has been confirmed statistically, a dynamic bonitat scale has been first built for Spruce that grows in Spruce and sub-Spruce sites, Beech and sub-Beech sites, the mathematical models of basic biometrics dynamics in modal forest stands have been developed and the tables of yield growth taking into account the features of their growth in different high-altitude and typology conditions have been built, the complex of mathematical models and algorithm for actualization of basic biometrics characteristics of Spruce artificial modal stands have been designed depending on the forest type and bonitat class. Results of research - to estimate current conditions forest stands, actualization of standard and reference data of artificial Spruce in Ukraine Carpathians forest fund, prognosis of basic inventory characteristics of forest stands, organization, planning and providing of forest management activity follow results are offered: dynamic bonitate scale, mathematical models of dynamics of inventory characteristics, yield tables and range models for prognosis of forest inventory parameters of artificial Spruce stands in Carpathians that grow in Spruce and sub-Spruce forest types, Beech and sub-Beech forest types. Field - forestry.