| 京西百花山植物群落数量分析 |
| |
| 引用本文： | 许彬,张金屯,杨洪晓,姜海凤.京西百花山植物群落数量分析[J].北京师范大学学报(自然科学版),2006,42(1):90-94. |
| |
| 作者姓名： | 许彬 张金屯 杨洪晓 姜海凤 |
| |
| 作者单位： | 北京师范大学生命科学学院,100875,北京;北京师范大学生命科学学院,100875,北京;北京师范大学生命科学学院,100875,北京;北京师范大学生命科学学院,100875,北京 |
| |
| 摘 要： | 采用双向指示种分析法(TWINSPAN)和除趋势对应分析(DCA)对京西百花山植物群落进行数量分类和排序,并进行了环境解释.TWINSPAN等级分类将百花山50个样方分为10类,代表10个群系.DCA结果同TWINSPAN分析结果比较一致,并且较好地反映了植物群系和环境之间的关系,其中第1轴明显地反映出各个群系的水热梯度的变化,同时也反映出坡向的变化趋势;而第2轴则反映出海拔的梯度变化,表明群系所在地的海拔是决定群系分布的主要环境因素.
|
| 关 键 词： | 百花山 植物群落 分类 排序 环境解释 |
| 收稿时间： | 2005-09-09 |
| 修稿时间： | 2005年9月9日 |
QUANTITATIVE ANALYSIS OF PLANT COMMUNITIES IN BAIHUA MOUNTAINS, WESTERN BEIJING |
| |
| Xu Bin,Zhang Jintun,Yang Hongxiao,Jiang Haifeng.QUANTITATIVE ANALYSIS OF PLANT COMMUNITIES IN BAIHUA MOUNTAINS, WESTERN BEIJING[J].Journal of Beijing Normal University(Natural Science),2006,42(1):90-94. |
| |
| Authors: | Xu Bin Zhang Jintun Yang Hongxiao Jiang Haifeng |
| |
| Institution: | College of Life Sciences, Beijing Normal University, 100875, Beijing, China |
| |
| Abstract: | Based on the field survey of plant quadrats,a quantitative analysis of the communities on Baihua Mountains,western Beijing is performed with TWINSPAN(two-way indicator species analysis) and DCA(detrended correspondence analysis) methods.50 quadrats collected from Baihua Mountains are classified into 10 types,representing 10 formations by TWINSPAN.The gathered groups of plant quadrates in the space of DCA ordination are consistent with the result of TWINSPAN,and this revealed a relationship between plant formations and environmental gradients.The axis 1 of the two-dimensional ordination diagram of DCA obviously reflects the gradient changes of elevation,humidity and temperature,and the trend of aspect.The axis 2 expresses the gradient changes of elevation.It is considered that the major factor that restrict the formation distribution of the mountain is elevation. |
| |
| Keywords: | Baihua Mountain plant formation classification ordination environmental interpretation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
