作物冠层气孔阻力与土壤水势关系的研究  

THE STUDY OF RELATIONSHIP BETWEEN THE STOMATA RESISTANCE IN COTTON CANOPY AND SOIL WATER ENERGY

作　　者：申双和[1] 徐为根[1] 吴洪颜 

机构地区：[1]南京气象学院环境科学系,南京210044 [2]江苏省农业气象与卫星遥感中心,南京210008

出　　处：《气象科学》2002年第2期218-222,共5页Journal of the Meteorological Sciences

基　　金：江苏省自然科学基金课题 ( BK990 6 0 )"旱涝灾害对江苏作物生产影响的评估决策系统"资助

摘　　要：利用棉花观测资料分析了气孔阻力与土壤水势的关系 ,并根据气孔阻力在冠层内的垂直变化 ,建立棉花冠层内气孔阻力的一元回归方程。由此初步解决了花铃期棉花冠层中气孔阻力的计算问题 ,而且对于监测棉田土壤水分动态、调节灌溉。The simulation model of the stomata resistance in the cotton canopy is come up on the basis of the relationship between the stomata resistance and soil energy,using field experimental data in combination with the diurnal vertical changes.The calculation problem of stomata resistance in cotton canopy during flowering stage is resolved.The achievement is also helpful to monitor the situation of soil water,adjust irrigation and take steps to reduce the number of flower buds that will fall off.

关 键 词：作物冠层 气孔阻力 土壤水势 

分 类 号：S161.21[农业科学—农业气象学]