水科学与水工程2009，Vol.2Issue(2)：79-86,8.DOI:10.3882/j.issn.1674-2370.2009.02.009
Study on soil water characteristics of tobacco fields based on canonical correlation analysis
Study on soil water characteristics of tobacco fields based on canonical correlation analysis
摘要
Abstract
In order to identify the principal factors influencing soil water characteristics (SWC) and evaluate SWC effectively, the multivariate-statistical canonical correlation analysis (CCA) method was used to study and analyze the correlation between SWC and soil physical and chemical properties. Twenty-two soil samples were taken from 11 main tobacco-growing areas in Guizhou Province in China and the soil water characteristic curves (SWCC) and basic physical and chemical properties of the soil samples were determined. The results show that: (1) The soil bulk density, soil total porosity and soil capillary porosity have significant effects on SWC of tobacco fiels. Bulk density and total porosity are positively correlated with soil water retention characteristics (SWRC), and soil capillary porosity is positively correlated with soil water supply characteristics (SWSC). (2) Soil samples from different soil layers at the same soil sampling point show similarity or consistency in SWC. Inadequate soil water supply capability and imbalance between SWRC and SWSC are problems of tobacco soil. (3) The SWC of loamy clay are generally superior to those of silty clay loam.关键词
canonical correlation analysis/tobacco soils/soil water characteristics/soil textureKey words
canonical correlation analysis/tobacco soils/soil water characteristics/soil texture分类
建筑与水利引用本文复制引用
Xiao-hou SHAO,Yu WANG,Li-dong BI,You-bo YUAN,Xian-kun SU,Jian-guo MO..Study on soil water characteristics of tobacco fields based on canonical correlation analysis[J].水科学与水工程,2009,2(2):79-86,8.基金项目
This work was supported by the National Key High-Tech Program (863) of China (Grant No. 2006AA 10Z271)and the Key Project of the Guizhou Tobacco Monopoly Administration (2007-7). （863）
