%0 Journal Article
%T Effects of soil factors on vegetation community structure in an abandoned subtropical paddy wetland<br>亚热带稻田弃耕湿地土壤因子对植物群落结构的影响
%A PENG Yi
%A LI Yu-yuan
%A LI Zhong-wu
%A YE Fang-yi
%A PAN Chun-xiang
%A XIE Xiao-li
%A <br>彭亿
%A 李裕元
%A 李忠武
%A 叶芳毅
%A 潘春翔
%A 谢小立
%J 应用生态学报
%D 2009
%I 
%X Based on the investigation data from a subtropical wetland having been abandoned from paddy agriculture for one year, a redundancy analysis was conducted on the relationships between vegetation community and soil factors in the wetland. It was found that soil moisture regime, available K and P, and pH were the main factors affecting the distribution of plant species. The common plant species could be classified into three groups, i.e., Ludwigia prostrata-Murdannia triquetra group (G1), Hemarthria altissima-Rotala rotundifolia-Lapsana apogonoides group (G2), and Conyza canadensis-Polygonum hydropiper-Paspalum pasaloides group (G3). G1 mainly distributed on the soils with higher available K, G2 mainly distributed in periodically flooded area, while G3 mainly distributed in drainage area and was positively correlated to soil available P and pH. Species diversity and above-ground biomass had significant positive correlations with soil pH and total K, respectively, while evenness index was significantly negatively correlated with soil available N. No significant correlations were observed among other indices.
%K soil factor
%K vegetation community structure
%K redundancy analysis (RDA)
%K abandoned wetland<br>土壤因子
%K 植物群落结构
%K 冗余分析(RDA)
%K 弃耕湿地
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=C740D73C7C3E88399FE2389EB1BB3F70&yid=DE12191FBD62783C&vid=A04140E723CB732E&iid=DF92D298D3FF1E6E&sid=815F249353800F81&eid=617DEAEB2884AFC7&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=2&reference_num=0