[Regeneration characteristics of three natural forests in the Three-River Headwater Region of Qinghai Province, China].

The aims of this study were to clarify the regeneration characteristics and dominant factors affecting the regeneration of three natural forests in the Three-River Headwater Region of Qinghai Province, and thus to provide a reference for the protection and management of natural forests. We evaluated the natural regeneration levels of forests, and the effects of stand factors and soil factors on natural regeneration. The results showed that three natural forests were poorly regenerated, with insufficient regeneration potential.