天然次生林多维空间格局的数量排序

NUMERICAL ORDINATION OF DIMENSIONAL SPATIAL PATTERNS FOR NATURAL SECONDARY FOREST

本文通过对豫西和豫南天然次生林的大量群落样地调查，以主分量分析（ＰＣＡ）与回归分析（ＲＡ）相结合，定量地揭示了河南天然次生林群落的组成和分布在多维生态空间上梯度变化的宏观格局，建立了包括２７个乔木建群种和６个主要环境因子在内的主分量模型和回归模型，为河南林业生产。

The investigation of 39 field plots for natural secondary forest in southern and western mountainous areas of Henan Province shows that the composition and distribution patterns of secondary forestry community with gradual change in dimensional ecological space.The models of principal Component Analysis (PCA) and Regression Analysis (RA) were developed with both 27 arborous edification and 6 major environmental factors.They will provide theoretical basis for forestry production,forest type distribution and tree species arrangement in Henan Province.