“…This is because the microflora and humus matter of the fertile ground layer are annihilated (Golovleva & Fil`kenshtein, 1984;Saratovskikh & Bokova, 2007). The results of our studies showed the mechanisms of these negative processes (Saratovskikh et al, 1989a(Saratovskikh et al, , 2005(Saratovskikh et al, , 2007b(Saratovskikh et al, , 2008b.…”