摘要
首先简要介绍了作物全生育期耗水量与产量关系的研究现状,通过国内外相关资料的分析表明,两者之间基本呈二次函数关系。在此基础上,以中国农业科学院农田灌溉研究所2001年度夏玉米田间试验资料为实例,对模型参数的确定和特性进行了详细地分析。最后,利用中国灌溉试验资料数据库和一些地区灌溉试验站有关灌溉制度资料,建立了中国各地区主要农作物全生育期耗水量与产量函数关系模型,并且对模型的特点以及在应用中可能存在的一些问题进行了探讨。
First of all, the research status on relationship between crop yield and evapotranspiration in whole growing stage has been introduced briefly in the paper, and through the analysis of domestic and international information, the result shows that the relationship between crop water consumption and yields was Parabola model. Then on the basis of that, taking the experimental data of summer corn in the farmland irrigation research institute of CAAS in 2001 for example, the determination of the model parameters and characteristics were analyzed in detail, at last, The function models between yields and water consumption at the whole growing stage of main crops in many areas were established in china by using the relevant irrigation scheduling data from the database of national irrigation experiment and some irrigation experimental stations. In addition, The model＇s characteristic and problems on the application of the models were discussed.
出处
《中国农学通报》
CSCD
2008年第3期430-434,共5页
Chinese Agricultural Science Bulletin
基金
国家"863"项目"主要作物高效用水生理调控与非充分灌溉"(2002AA2Z4031)
关键词
抛物线模型
全生育期耗水量
作物产量
parabola model, water consumption during the whole growing period, crop＇s yield
