Abstract: The largest area of subtropical evergreen broad - leaved forests distributed naturally in southern and southwestern China play an important role in biological diversity and natural environment conservation.However, human - induced disturbances in the last several decades have destroyed most of the valued vege-tation. Diversity loss and environmental degradation have been a serious problem. It has been pressing and difficult work to restore and rehabilitate the evergreen broad - leaved forests. In China, although numerous studies dealing with the artificial rehabilitation have been carried out, the effect on conservation and restora-tion of biological diversity has been found to be ineffective due to restricted tree selection. Few studies have undertaken natural regeneration and floristic diversity restoration.

Key words: Subtropical evergreen broad-leaved forest