摘要
以九寨沟青木千林样地资料为基础，研究了九寨沟自然保护区青木千林的物种多样性特征．结果表明：青木千林不同层次的物种丰富度表现为灌木层＞草本层＞乔木层．不同发育阶段的群落物种多样性指数表现出青木千与其它树种混交林＞近成熟林＞青木千顶极群落．说明处于群落交错区或受轻度干扰的群落物种多样性高，青木千顶极群落物种多样性低．
Community species diversity of Picea wilsonii forests in Jiuzhaigou Valley Nature Reserve is studied with field investigation. The results show that the richness of different community layers are shrub layer>herb layer>tree layer. Different community species diversity indexes show from the mixed forest of Picea wilsonii and other trees> of the Picea wilsonii Preclimax community> of the Picea wilsonii climax community. This shows that the communities of situating ecotone and slight disturbance have a higher species diversity while the climax community of Picea wilsoii forests has a lower species diversity.
出处
《四川师范大学学报（自然科学版）》
CAS
CSCD
1998年第6期651-656,共6页
Journal of Sichuan Normal University（Natural Science）
关键词
物种多样性
青Qian林
九寨沟
自然保护区
Community species diversity
Picea wilsonii forests
Jiuzhaigou Valley Nature Reserve
