Abstract:Effects of human impacts on fine roots and soil organic matter of a pine forest in subtropical China were studied by comparing treatment (harvesting understory and litter according to practice of local people) and control (no harvest) plots in a pine forest from 1990 to 1995. During this studied period, the total amount of material harvested by this practice in treatment plots was 21.7 t/hm~2. In control plots, the standing stocks of understory increased from 2.2 to 11.1 t/hm~2 at a significantly linear pat...