生命科学研究2012，Vol.16Issue(5)：382-388,7.
湖南江永石灰岩山地青檀群落特征研究
Study on the Community of Pteroceltis tatarinowii in the Limestone Mountainous of Jiangyong County of Hunan Province
摘要
Abstract
The flora composition, geographical composition, the number of species composition characteristics, the life form and species diversity characteristics of the community of Pteroceltis tatarinowii Maxim in the limestone mountainous of Jiangyong county of Hunan province are studied. The results show that: In the sample plot, 2 800 m2, Pteroceltis tatarinowii Maxim community have 51 common vascular plants species, belonging to 48 genera and 34 families. Extensive tropical composition, included 13 genera, take up the most plant distribution, 29.54% of the total genera; and the old world tropical distribution types, Temperate types and East Asia and North America discontinuous distribution types take the second place, which both have 5 genera and each account for 11.36%. Plants are most phanphytes in the life form, 70.59%, and annual plants at least, 1.96%. At the community level, shrub layer and herb layer take up a significant share. The species diversity analysis shows that, Shannon-Wiener index, Simpson index and PIE index all represent Sh>H>T, which reflect dominant species of the tree layer in the Pteroceltis tatarinowii community performance obviously, suggesting that this community at present is relatively stable. Resource protection and problems of sustainable use of the Pteroceltis tatarinowii Maxim community are discussed.关键词
石灰岩山地/青檀/区系组成/群落特征/湖南江永县Key words
limestone mountainous/Pteroceltls tatarinowii Maxim/flora composition/community characteristic/Jiangyong county of Hunan province分类
农业科技引用本文复制引用
周磊,顾建忠,宋云飞,旷仁平,李行娟,刘克明..湖南江永石灰岩山地青檀群落特征研究[J].生命科学研究,2012,16(5):382-388,7.基金项目
国家自然科学基金资助项目(30470130) （30470130）
中国科学院知识创新工程重要方向资助项目(KSCX-SW-122) （KSCX-SW-122）
"十一五"国家科技基础平台建设专项(2005DKA21403 （）
2005DKA21006) （）
