TY JOUR TI The age of artificial poplar woods’ quantitative economic exploitability in the Central Chernozem Region KW poplar KW quantitative economic exploitability of wood KW average and current annual increment KW the age of final yield KW Euro-American sorts KW productivity KW perspective assortment JO Actual directions of scientific researches of the XXI century: theory and practice AU Tsarev, V.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov