关键词: 米槠林, 人为干扰尺度, 恢复生态, 干旱胁迫, 根序, 细根, 刨花楠, 氮添加

Abstract: Analyses on the effects of the different scales of human disturbance on restoration of Castanopsis carelesii forest in Wupin,Fujian indicated that with increasing degrees of the scales of human disturbance (A class, regeneration by selected cutting; B class, natural regeneration;Cclass,natural regeneration promoted by artificial tending;D class,Chinese fir forest),the important value of Castanopsis carlesii and the similar index between the communities decreased,and the assembling and abundance degrees of species increased under disturbance of B or C class,and decreased under D class.It could be concluded that the disturbance of A class was light,that of B class was medium and could be restored rapidly,disturbance of C class was also medium but would be restored in a longer period,and that of D class w as difficult to be restored due to the intense disturbance.

Key words: Castanopsis carlesii forest, Scales of human disturbance, Restoration ecology, Machilus pauhoi, nitrogen addition, fine root, drought stress, root order