Change in Species Diversity during Recovering Process of Evergreen Broad-leaved Fo rest

编号 zgly0000364456

文献类型 期刊论文

文献题名 Change in Species Diversity during Recovering Process of Evergreen Broad-leaved Fo rest

学科分类 220.1060;森林生态学

作者 WenYuanguang  LiuShirong  ChenFang  HeTatping  LiangHongwen 

作者单位 CollegeofLifeScience  StchuanUniversity  Chengdu610064  P.R.China//ForestryCdttege  GuangxiUniversity  Nanning530005  P.R.China  TheChineseAcademyofFore  try  Bering100091  P.R.China  CortegeofLifeScience  StchuanUniversity  Chengdu610064  P.R.China  ForestryColtege  GuangxiUniversity  Naatting530005  P.R.China 

母体文献 Ecological Economy;生态经济: 英文版 

年卷期 2005(1)

页码 19-22

年份 2005 

分类号 S718.5 

关键词 常绿阔叶林  植物物种  生物多样性  森林资源  生态系统  植被恢复 

文摘内容 Evergreen broad-leaved forest is one of the most important vegetation types in China. Because of the human activities, evergreen broad-leaved forest has been destroyed extensively, leading to degraded ecosystem. It is urgent to conserve and restore these natural forests in China.tn this paper, the tendency and rate of species diversity restoration of the evergreen broad-lea ved forest in Darning Mountain has been studied. The main results are as follows:(a) in subtropical mid-mountain area, species diversity in degraded evergreen broad-leaved forest can be restored. Through analyzing b diversity index of communities in different time and space, it was found that the species composition of communities tend to be the same as that in the zonal evergreen broad-leaved forest. (b) The restoration rate of evergreen broad-leaved forest was very fast. Planting Chinese fir after clear-cutting and controlled burning of the forest 178 species appeared in a 60Om^2, sample area after 20 years natural recovering. Among these species, 58 were tree layer and the height of community reached 18m, The survey suggested that it would take only 20 years for the degraded forest to develop into community composed of light demanding broad-leaved pioneer trees and rain-tolerance broad-leaved trees, and it need another 40-80 years to reach the stage consisting of min-tulerance evergreen broad-leaved trees, (c) Species number increased quickly at the early stage (2-20 years) during vegetation recovering process toward the climax, and decreased at the min-stage (50-60 years ), then maintained a relatively stable level at the late-stage (over 150 years)。