Abstract: After having compared the effects of the two methods of reforestation, the non-burning afforestation and managed natural forest regeneration, on the soils following the forest regeneration with that of the traditional control burning afforestation, this paper indicated that the former two methods could maintain the litter and its containing nutrients on the forest soil surface, decline soil erosion, protect soil from regrassive development and texture abruptness, keep soil fertility, and avoid soil physical properties from deteriotation. This paper proposed that from the view of ecological protection and forestry sustaining development, attention should be paid to these two forest regeneration methods.

Key words: low temperature-adapted Bacillus, rep-PCR fingerprinting, 16S rDNA sequence analysis, gyrB sequence analysis, lipopeptide.