%0 Journal Article
%T Composition and dominant species of soil seed bank along an altitudinal gradient in Mt.Taibai,Qinling Mountains<br>太白山南坡土壤种子库的物种组成与优势成分的垂直分布格局
%A ZHANG Ling
%A FANG Jing-Yun
%A <br>张玲
%A 方精云
%J 生物多样性
%D 2004
%I Science Press
%X We analyzed patterns of species composition and dominance in the soil seed bank along the southern slope of Mt. Taibai, Qinling Mountains. The results are summarized as follows: (1) in terms of seed number, dominant families varied along the altitudinal gradient. According to species number, there were 4 dominant families in the seed banks between 1600 m and 2600 m a.s.l., which was higher than those of other altitudes. Rosaceae was the family with the richest species in the seed bank; (2) Betula utilis occurred in 16 out of 21 plots. The dominance of Betula utilis and Abies fargesii showed a unimodal pattern along the altitudinal gradient, and (3) combining analysis of life form composition and dominant species, trees played a dominant role in the composition of seed banks, while shrub species did not significantly influence species and individual composition of seed banks in Mt. Taibai.
%K Mt
%K Taibai
%K soil seed banks
%K composition
%K dominant
%K altitudinal gradient<br>太白山
%K 土壤种子库
%K 物种组成
%K 优势种
%K 海拔梯度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=284A3BE2D09272C2DA95716775015427&aid=5FDE040AA8BB8B3C&yid=D0E58B75BFD8E51C&vid=59906B3B2830C2C5&iid=CA4FD0336C81A37A&sid=AE09EACBCD1B2A13&eid=B47A0E731AF43EB2&journal_id=1005-0094&journal_name=生物多样性&referenced_num=12&reference_num=11