摘要
应用作物水分生产函数Ｊｅｎｓｅｎ模型的关键是确定模型中的水分敏感指数，本文提出水分敏感指数累积函数的概念．在分析已有成果的基础上，用生长曲线来描述敏感指数的累积函数，并给出了参数的求解方法．利用４个站年的冬小麦耗水量资料，对所提出的方法进行了检验．结果表明，用生长曲线来拟合敏感指数累积函数能较好地描述冬小麦产量对水分的反应．
A concept of cumulative function of sensitive index was introduced in this paper. By reviewing the previous studies, the authors use a growing curve to represent the cumulative function of sensitive index in Jensen model. A method for determining the parameters of the cumulative function was consumption for winter wheat. The results demonstrate that the cumulative function of sensitive index represented by a growing curve could describe the yield response to water deficit for winter wheat.
出处
《水利学报》
EI
CSCD
北大核心
1997年第5期28-35,共8页
Journal of Hydraulic Engineering
基金
国家自然科学基金
关键词
水分
敏感指数
累积函数
冬小麦
灌溉
water production, cumulative function of sensitive index, growing curve.
