摘要
本文依据田间试验资料,分析了冬小麦叶片水势、气孔阻力和蒸腾速率在不同土壤基质势条件下的日变化规律,探讨了其与土壤基质势和天气条件(光照强度、净辐射、饱和差、气温)之间的关系,建立了叶片水势、气孔阻力、蒸腾速率与环境因素间的定量关系式。
Based on the experimental data obtained from winter wheat field,the daily varying rules of leaf water potential, stomatal resistance and transpiration rale under various soil malric potential conditions have been analysied in this paper.Relations between leaf water potential, stomatal resistance and transpiration rate of winter wheat and soil matric potential as well as meteorological factors(irradiance, net radiation, air vapour pressure deficit and air temperature) have been studied. Emperical formulas of leaf water potential, stomatal resistance, transpiration rate and enviromental factors have been established.
出处
《灌溉排水》
CSCD
1991年第3期1-6,共6页
Irrigation and Drainage
基金
国家自然科学基金资助课题"土壤-植物-大气连续体水分运移理论及应用"的一部分
关键词
冬小麦
叶片
水势
气孔
蒸腾
环境
Leaf water potential Slomatal resistance Transpiration rale Soil matric potential Meteorological factors,
