TY JOUR TI Results of modeling of operation of lesosechny cars(machines) and determination of volumes of decrease in negative impact of lesosechny cars(machines) on forest ecosystems KW forest machines and equipment KW emissions of particulate matter KW toxic substances KW harmful emissions KW harmful effects on forest ecosystems KW reduction of the time of the harvest area KW the exhaust gases JO Actual directions of scientific researches of the XXI century: theory and practice AU Ryzhikva, E.. AU Ilyukhin, D.. AU Zaikin, A.N. AU Teremkova, I.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov