Lovynska V. Biotic Productivity of Scots Pine Plantation Within Ravine Steppe of Ukraine

The thesis provides the theoretical bases and the practical substantiation of system of models for establishment of qualitative and quantitative characteristics of components of aboveground phytomass of pine trees and stands within the ravine Steppe of Ukraine is formulated. The assessment of bioproductivity of Scots pine trees and stands in the conditions of the ravine Steppe was carried out with the use of systematic analysis of forest ecosystems and the involvement of modern both general and specific methods. The results of processing of multispectral (Sentinel-2A) and radar (Sentinel-1A) satellite images with the established indicators of vegetation indices and biophysical parameters of pine stands of the studied region are presented. According to the indicators NDVI (Sentinel-2A) and RDPI (Sentinel-1A), the aboveground biomass of pine stands was calculated and its distribution within the study region was mapped. Peculiarities of growth are determined, a dynamic bonitat scale is developed and the bioproductivity of artificial pine stands in dynamics in the conditions of riparian Steppe is estimated. Modeling of the main biometric indicators of modal pine stands of artificial origin of the studied region is carried out.