%0 Journal Article %T ENVIRONMENTAL CONDITION AND STABILITY BIOLOGICAL PRODUCTIVITY OF AGRO ECOSYSTEMS WITH SUNFLOWER CROPS IN CONDITIONS OF HIGH ANTHROPOGENIC LOAD %A Vysotskaya, E.. %A Krekoten, M.. %K ecology, anthropogenic pressures, ecosystem pollution. %J Voronezh Scientific-Technical Bulletin %D 2015 %N 4 %P 3 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov