我国南方水稻水分生产函数试验研究

本文根据广西桂林地区灌溉试验中心站１９８８年以来的五年预测试验成果，分析研究适用于我国南方的水稻水分生产函数模型，探讨各种模型中水分敏感性参数的变化规律，提出水稻水分生产函数随水文年度呈规律性变化的观点，特别是具体提出了Ｊｅｎｓｅｎ模型中水分敏感指数与参照作物需水量的关系，为拓宽水分生产函数应用的时空范围提供了依据及方法。

Study of water production function for rice in south China

Based on the experimental data in 1988-1993 from Guilin prefecture in Guangxi Autonomous Region,the models of water produn function for rice,which can be applied to south China,are investigated.The regularity of the variation of water sensitivity parameters in the various models has been discussed.It is suggested that the water.sensitivity parameters of water production t'ullclion for rice is varied with the hydrology years,especially,the relationship between the sensitivity indices for Jensen model and the reference evapotranspiration has been presented.Thus,the principle and methods for widenning the applied ranges of time and space have been established.