摘要
采用SPSS软件分析了2007年5—10月桃树茎干日变化与生态因子之间的关系,建立了多元回归数学模型,各月份回归系数均在0.9以上。结果表明,不同生长阶段影响茎干日变化的主要因子不同,而且在一日内影响茎干变化的主要因子也在随时间的推移而变化。从整个生长过程来看,桃树茎干日变化与空气温度和空气相对湿度这2个因子之间的关系相对比较密切。研究不同土壤水势条件下桃树茎干日变化与生态因子之间的关系,可为桃树生长环境的调控提供科学依据。
The relationship between daily variation of peach stem and ecology parameters during May and October in 2007 was analyzed by SPSS.Meanwhile,multiple regression mathematical model was built and the regression coefficient of each month was greater than 0.9.The results showed that the key factor which influence stem daily variation was different in distinct growth period.Moreover,the key factor was changed as time goes on in the same day.Close relationships between stem daily variation and air temperature,air relative humidity were found during whole growth period.Investigating the relationship between stem daily variation and ecology parameters can provide the scientific foundation for regulation and control of pear tree growing environment.
出处
《灌溉排水学报》
CSCD
北大核心
2010年第2期115-118,共4页
Journal of Irrigation and Drainage
基金
国家863计划项目(2006AA100223)
关键词
桃树
茎干日变化
生态因子
peach tree
trunk daily variation
ecological factors
