Abstract:Investgations were carried out from 1979 to 1981 on the natural regeneration of the alpine pine in Gengzhang Gully, Xizang. The results show that the stand types are mainly pteridophyta, alpine oak, and alpine pihe, and that their distrbution areas are comparatively large. Alpine pines grown on flood land and in the middle-lower parts of the slopes are mostly Ⅱ and Ⅲ age-dasses, their increments are high with good, and natural regeneration As a resoult of poor seed sources in the forest, there only 1—10 year-old young seedlings and trees, about 2000—115000 plants per hectare, and grow badly. We suggest that some measures should be token to promote the natural regeneration, such as by strip clear cutting, heavy selective fellings, direct seeding and forest cleaning.