TY JOUR TI Assessing the impact of polyacrylamide on indicators of soil biological activity KW technogenic landscape KW disturbed lands KW polyacrylamide KW soil KW soil biological activity KW carbon dioxide KW organic substance JO Forestry Engineering Journal AU Golyadkina, I.V. PY 2014 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov