摘要
本文据同步观测到的气孔阻力和土壤水势、净辐射能、气温、叶温、水汽压、饱和差、风速等环境因素变化值,用统计方法分析了小麦叶片气孔阻力与环境因素的关系,结果表明:冬小麦叶片的气孔导性主要受土壤水势影响。叶片正反两面的气孔对环境因素变化的反应不同,正面气孔导性主要受土壤水势影响,而反面气孔导性则与气温、水汽压和饱和差关系较大。
This paper gives the results of wheat stomatal resistance influencedby environmental factors. The analysis method used is multiple regression.The results explain that: soil water potential in the root zone is the ma-jor factor that influences stomatal resistance. The effect of environmentalfactors to abaxial stomata and adaxial stomata are different: the abaxialstomatal resistance is mainly influenced by soil water potential, but theadaxial stomatal resistance is mainly influenced by air temperature andair humidity.
关键词
气孔阻力
环境因素
多元回归
小麦
Stomatal resistance
Environmental factor
Multiple regression
