TY JOUR TI BIOECOLOGICAL BASES OF INTERMEDIATE USE LOGGING IN NUT-PRODUCING AREAS OF CEDAR FORESTS KW Siberian cedar KW walnut harvesting KW female generative layer KW sexualization of shoots KW lightening KW harvest JO Actual directions of scientific researches of the XXI century: theory and practice AU Titov, E.V. PY 2020 IS 8 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov