井冈山自然保护区栲属群落物种多样性的研究  

Studies on species diversity of Castanopsis community in Jinggang Mountain Nature Reserve

作　　者：邓贤兰[1] 肖春玲[1] 刘玉成[2] 

机构地区：[1]井冈山师范学院生命科学系,江西吉安343009 [2]西南师范大学生命科学学院,重庆400715

出　　处：《广西植物》2004年第1期7-11,16,共6页Guihaia

摘　　要：以井冈山栲属群落 1 5个样地调查资料为基础 ,研究了井冈山栲属群落的物种多样性特征。结果表明 :栲属群落物种多样性指数较高 ,各样地间多样性指数测值变幅不大 ;测度栲属群落物种多样性时 ,各种多样性指数基本表现出相同的趋势 ;总体来看 ,栲属群落物种多样性在群落不同层次的变化规律为 :灌木层 >乔木层 >草本层 ;各层次变化幅度从大到小的顺序为 :草本层 >乔木层 >灌木层 ;群落物种多样性没有表现出一个明显的随海拔高度的变化规律 ,这表明了井冈山栲属群落物种多样性的一致性 ;井冈山栲属群落物种多样性比中亚热带东部和福建龙栖山常绿阔叶林的物种样性指数高 ,这与井冈山的环境条件优越 ,群落保护较好 ,并可能与井冈山处于由南亚热带至中亚热带的过渡地带这一特殊的地理位置有关 ;人为因子的干扰对栲属群落的物种多样性有较大的影响。Species diversity of Castanopsis community in Jinggang Mountain is studied with field investigation. The results show that Jinggang Mountion had high species diversity index, which did not alter too much between investigated plots. The variation patterns of species diversity of Castanopsis communities were similar whichever the index was used. Generally, the order of the magnitude of species diversity was: shrub layer>tree layer>herb layer. The variation of indices order was: herb layer>tree layer>shrub layer. The species diversity of Castanopsis communities was not affected by altitude, which indicates the consistency of species diversity in Jinggang Mountain. The species diversity of Castanopsis communities in Jinggang Mountain was larger than that of the evergreen broad-leaved forests in Longxi Mountain in Fujian Province. This indicated that the environment of Jinggang Mountain is good and the forest has been well protected. Moreover, it could be caused by the fact that Jinggang Mountain lies in a transitional zone from South-subtropics to Mid-subtropics. The species diversity of Castanopsis communities was greatly influenced by human influences.

关 键 词：物种多样性 栲属 植物群落 井冈山自然保护区 

分 类 号：Q948.15[生物学—植物学]