武陵山区蛇足石杉居群的分布与生境特征  

The distribution and habitat characteristics of Huperzia serrata populations in Wuling Mountain range

作　　者：黄骥[1] 金莉莉[1] 钱晓萍[1] 魏丹骊[1] 

机构地区：[1]上海师范大学生命与环境科学学院,上海200234

出　　处：《上海师范大学学报（自然科学版）》2011年第1期68-73,共6页Journal of Shanghai Normal University(Natural Sciences)

基　　金：国家高技术研究发展计划项目(863计划)(2007AA021504);上海市科委西部科技合作项目(08395801200);上海市教委科研创新项目(11YZ91);上海师范大学前瞻性项目(DYL201101)

摘　　要：采用田野调查法对分布于武陵山区蛇足石杉(Huperzia serrata)居群进行了较全面的研究,发现该种主要分布于原生常绿阔叶林、各种次生林及人工林下的荫湿生境,在群落中处于从属地位.分析了影响蛇足石杉分布的生物学因素,以及导致其濒危的主要原因,并提出相应的保护策略.We carried out field surveys on the populations of Huperzia serrata distributed in Wuling Mountain range.This species was found to be dominated by other species in different forest communities（i.e.primary evergreen broad-leaved forest,various secondary communities and planted forests）.Although the types of concomitant community of H.serrata varied,the habitats characterized by shade,damp,mossy and acid soil were found to be consistent.The paper analyses the key biological factors which effect distribution,as well as the main factors responsible for the endangerment of H.serrata,and puts forward protection countermeasures.

关 键 词：武陵山区 蛇足石杉 居群 分布 保护 

分 类 号：O948.1[理学]