摘要
应用主分量分析(PCA),将陕南碑坝常绿阔叶林划分为6个群系:Ⅰ包石栎林,Ⅱ包石栎+青冈林,Ⅲ曼青冈林;Ⅳ青冈林,Ⅴ粉白杜鹃十短柱柃林,Ⅵ刺叶栎林,这不仅与分类结果一致,而且反映了各样地间的空间分布格局。影响其排序的主导因子是包石栎和青冈。
By means of Principal Component Analysis(PCA),the 16 plots of the evergreen broad-leaf forest are classified into 6 Formations:i)Form. Lithocarpus cleistocarpus;ii)Form.L.cleistocarpus and Cyclobalanopsis glauca;iii)Form.C.oxyodon;iv)Form.C.glauca;v)Form.Rhododendron hypoglaucum and Eurya brevistyla;vi)Form.Quercus spinosa.The result of the ordination shows clearly the pattern of spatial distribution of communities, and accords with the classification result.The ordination is influenced significantly by Lithocarpus cleistocarpus and Cyclobalanopsis glauca.
出处
《陕西师大学报（自然科学版）》
CSCD
1991年第3期64-68,共5页
Journal of Shaanxi Normal University(Natural Science Edition)
关键词
主分量分析
常绿阔叶林
排序
PCA
evergreen broad-leaf forest
ordination
