基于动态灌水下限值的冬小麦非充分灌溉预报研究  

Research on Insufficient Irrigation Forecasting for Winter Wheat Based on Lower Limit Value of Dynamic Irrigation Amount

作　　者：杜娟娟 王仰仁[2] 李粉婵 DU Juan-juan WANG Yang-ren LI Fen-chanl(Shanxi Institute of Water Resources and Hydropower Research, Taiyuan 030002, China Department of Hydraulic Engineering, Tianjin Agricultural University, Tianjin 300384, China)

机构地区：[1]山西省水利水电科学研究院,太原030002 [2]天津农学院水利工程系,天津300384

出　　处：《节水灌溉》2017年第5期93-97,共5页Water Saving Irrigation

基　　金：国家科技支撑计划项目"实时灌溉预报与输配水标准化技术与设备"(2012BAD08B01)

摘　　要：以临汾市冬小麦全生育期实测土壤水分养分资料为依据,结合作物生长模型,提出基于动态灌水下限值法的非充分灌溉预报模式,并将该预报模式应用到临汾市2008-2009、2009-2010、2010-2011、2011-2012、2012-2013年和2013-2014年共6 a的冬小麦生育期进行灌溉预报研究。研究表明,基于上述方法计算得到的优化灌溉制度下的产量与效益相对于传统灌水模式都有不同程度的增加,6个年度的平均增产率为9.94%,平均增产效益率为17.50%。According to the measured data of winter wheat soil moisture and nutrients in the growth period in Linfen city, the insufficient irrigation forecasting model was proposed based on the dynamic irrigation lower limit value method and combined with the crop growth model. The forecast model was applied to Linfen city for the irrigation forecast in the growth period of winter wheat in the year of 2008-2009, 2009 - 2010, 2010- 2011, 2011 - 2012, 2012- 2013 and 2013- 2014. The study results that： compared with the traditional irrigation mode, all the yield and benefit of the six years under the optimized irrigation system based on the above method increase by a different degree. The average rate of production and benefit increase is 9.94% and 17.50%, respectively.

关 键 词：冬小麦 动态灌水下限值 非充分灌溉预报 

分 类 号：S274[农业科学—农业水土工程]