| 太白山针叶林的数量分类与排序 |
| |
| 引用本文： | 王孝安,田先华.太白山针叶林的数量分类与排序[J].陕西师范大学学报,1997,25(2):60-63. |
| |
| 作者姓名： | 王孝安 田先华 |
| |
| 作者单位： | 陕西师范大学生物学系 |
| |
| 基金项目： | 陕西师范大学青年科学基金 |
| |
| 摘 要： | 应用模糊聚类和ＰＣＡ排序方法对太白山针叶林进行了分类和排序，利用多元回归分析将排序值与环境参数相联系而给出群落的定量环境解释．分析表明，太白山针叶林的类型及分布主要取决于海拔、降水和热量．模糊聚类的截取水平选在模糊关系变化较大之处，可得到较为合理的聚类结果
|
| 关 键 词： | 数量分类 排序 太白山 针叶林 |
Quantitative classification and ordination of coniferous forests in Taibai mountain |
| |
| Abstract: | The coniferous forests in Taibai mountain were classified and ordinated using fuzzy clustering and PCA (Principal components analysis) ordination. Based on the multivariate regression analysis of ordination axes and environmental parameters, the environmental interpretation of 26 plant community samples are given. It is showen by the analytsis that the coniferous forest types of Taibai mountain and their distribution are mainly determined by the thermal and moisture gradients. The cutting level in fuzzy clustering used are discussed. |
| |
| Keywords: | Taibai mountain coniferous forest ordination quantitative classification |
| 本文献已被 CNKI 维普 等数据库收录！ |
