Restoration ecology on the Castanopsis fargesii forest in Wuyishan, Fujian Ⅰ. The effects of different scale of artificial disturbance on the flora of tree layer of Castanopsis fargesii

Key words: 
• Castannopsis fargesii forest /
• artificial disturbance /
• arbor layer /
• flora /
• Wuyishan Mountains

Abstract: The effect of the different scale of artificial disturbance (ck, the original forest; A, the regeneration of selection cutting; B, the natural regeneration; C, the natural regeneration promoted by artificial measure and class; D, Chinese fir) on the restoration of the Castanopsis fargesii forest in Wuyishan, Fujian is discussed through the flora of tree layer. The results show that the Castanopsis fargesii is dominant in the tree layer of ck, class A and class B. The intolerant tree species, Castanopsis fargesii is dominant in the tree layer of ck, class A and class B. The intolerant tree species, Castanopsis fisaa is the first dominant species and the climax species, Castanopsis fargesii is the second dominant species while the dominant species in the tree layer change essentially, and Chinese fir becomes dominant influenced by aftificial planting. The composition of species, the number of species and genus in every family; the distribution kind of genus, the public species adjacent to the area and the coefficient of species among populations reduce or decrease as the S pattern with the enhancement in the scale of artificial disturbance through the analysis of the flora of tree stratum. D class, Chinese fir, the tree layer's indice are more different from that of natural Castanopsis fargesii forest because of the control on the community by the dominant species-Chinese fir. And other regenerations will go back to climax community.