福建地区小叶买麻藤生存群落特征  

Characteristics of Gnetum parvifolium community in Fujian

作　　者：吴冬[1,2] 胡永红[3] 黄姝博[4] 田旗[4] 李宏庆[1] 

机构地区：[1]华东师范大学生命科学学院,上海200062 [2]杭州萧山园林集团有限公司,浙江杭州311201 [3]上海植物园,上海200231 [4]上海辰山植物园,上海201602

出　　处：《福建林学院学报》2011年第1期24-30,共7页Journal of Fujian College of Forestry

基　　金：上海市绿化管理局攻关项目(G069901);上海市自然科学基金资助项目(10ZR1408600)

摘　　要：对福建地区小叶买麻藤的野生资源做了详细踏查,并对其中10个市(县)的小叶买麻藤生存群落特征进行了深入研究。结果表明:福建地区小叶买麻藤分布范围有缩小的迹象,种群年龄结构为金字塔型;群落特征兼有南亚热带常绿阔叶林和中亚热带常绿阔叶林性质;生活型谱中高位芽植物占绝对优势,叶的性质以单叶、中型叶和小型叶、草质和革质叶为主;群落垂直结构复杂,分层明显;小叶买麻藤在群落内的重要值较高;群落物种多样性较高,样地内有维管植物88科172属300种;福建地区小叶买麻藤种群能在其生存群落中维持稳定的发展。Resoure of wild Gnetum parvifolium in Fujian was investigated in detail,and the characteristics of G.parvifolium community in 10 cities or counties of Fujian were studied deeply.The result shows that there were signs of decreasing distribution range of G.parvifolium in Fujian in comparison with that of the previous records.Age structure of G.parvifolium population in Fujian is pyramid-type.The characteristics of G.parvifolium community had features of lower subtropical evergreen broad-leaved forest and middle subtropical evergreen broad-leaved forest.According to Raunkiaer′s statistics of life-form,the phanerophytes occupied the dominant position in community.The features of the leaves are mainly simple,small to medium,herbaceous or coriaceous.The vertical structure of G.parvifolium community was relatively complicated which could be divided into tree layer,shrub layer and herb layer obviously.The importance value of G.parvifolium was higher in community.Comparing the species diversities to other forest communities,it showed that the community of G.parvifolium had relatively high species diversity.According to the survey,there were 300 species of vascular plants in plots of community,belonging to 172 genera and 88 families.The population of G.parvifolium in Fujian can be sustained under the present situation.

关 键 词：种群 植物区系 群落外貌 垂直结构 物种多样性 

分 类 号：Q948.15[生物学—植物学]