安徽皇甫山太子参群落物种的多样性研究

Studies on Species Diversity of Pseudostellaria heterophylla Community in the Mt.Huangfu of Anhui Province

在安徽皇甫山太子参 (Pseudostellariaheterophylla)群落中 ,根据不同海拔和坡向选择 3个样地 :弥陀寺后山 (Q1)、林场总部西南方向—东西走向的山脊梁上 (Q2 )、北将军岭东南坡 (Q3)进行群落学调查 ,然后采用物种丰富度指数、物种多样性指数、群落均匀度指数分析太子参群落物种多样性与群落特征的关系。结果表明 :Q2物种多样性最高 ,Q1次之 ,Q3最低。随着海拔升高 ,物种多样性呈下降趋势 ,并受人为干扰影响。各样地草本层物种多样性较高 ,乔木层、灌木层物种多样性极低。太子参群落物种多样性与太子参的生态环境及其生物学特性直接相关。

The investigation on phytocoenology was carried out on the Pseudostellaria heterophylla community in the Mt.Huangfu of Anhui Province with the selecting of three quadrats located behind the Mituo Temple (Q1),in the southwest of forestry center (Q2) and in the southeast sloping field of Northern-General Mountain (Q3) according to different altitudes and directions of the slope.The connection on species diversity with characteristic of the community was analyzed with the abundant index of species,species diversity index and community even index.The results showed that the abundant index of species, species diversity index and community even index of Q2 were the biggest,the indexes of Q1 took second place and the indexes of Q3 were least. With the altitude of quadrats increasing, species diversity was descending. Meanwhile,artificial interference could have an effect on species diversity of the community.The indexes of herb layer were higher,but the indexes of tree layer and shrub layer were extremely low. Species diversity of the community had direct bearings on eco-environment and biological characteristics of Pseudostellaria heterophylla.