TY JOUR TI The impact of climate variability on the sustainability of Russian forest Ecosystems from threat of increase pests and diseases KW : forest ecosystems KW system stability KW threats KW expected climate changes KW pests and forest diseases JO Forestry Engineering Journal AU Koroleva, T.S. AU Konstantinov, A.V. AU Kushnir, E.A. PY 2017 IS 6 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov