环境因素影响草地柠条生长的主成分及典型相关分析

Principal Component and Canonical Correlation Analysis of the Environmental Factors Influencing the Growth of Caragana korshinskii Kom. in Grassland

The growth process of Caragana korshinski Kom.was studied in Dong mountain grassland at Shanghuang Hechuan of Guyuan,NingXia Hui Autonomous Region based on the observation data from 1985 to 2007 using principal component and canonical correlation analysis on 18 indices which were chosen to represent growth factors,climatic factors,terrain factors,and soil moisture factors.The results show that 5 principal components were obtained by principal component analysis,among which the climatic and terrain factors i...