小麦间作向日葵耗水量与优化灌溉制度研究  

Research on Crop Water Requirement and Optimization of Irrigation System of Intercrop Wheat and Sunflower

作　　者：朱丽[1] 史海滨[1] 王宁[1] 李圆圆 李正中 托雅 

机构地区：[1]内蒙古农业大学水利与土木建筑工程学院,呼和浩特010018 [2]内蒙古黄河工程局有限公司第四工程处,呼和浩特010020 [3]内蒙古河套灌区解放闸灌域沙壕渠试验站,内蒙古杭锦后旗015400 [4]呼伦贝尔市防汛抗旱信息中心,内蒙古呼伦贝尔021008

出　　处：《中国农村水利水电》2012年第4期64-67,71,共5页China Rural Water and Hydropower

基　　金："十一五"国家科技支撑项目内蒙古河套干旱区粮食作物综合节水技术研究与示范(2007BAD88B04);"十二五"内蒙古河套灌区粮油作物节水技术集成与示范(2011BAD29B03)

摘　　要：小麦间作向日葵是一种典型的河套灌区种植模式,研究运用WIN ISAREG模型确定了参考作物蒸发蒸腾量,结合立体种植特征,采用综合作物系数法确定小麦间作向日葵全生育期作物耗水量。同时通过实际处理结果对模型参数进行率定与验证,最终对小麦间作向日葵实际灌溉制度进行准确的评价并进行不同方案的优化,得到试验区如配有井灌等条件,优选灌溉方案为土壤含水率下降至适宜含水率70%时实施灌溉,灌水量为补充根系层水量至田间持水量85%所需水量;若灌水水源仅为黄河水,则优选灌溉方案为整个生育期灌5水,灌水量为达到根系层中总有效水量的80%。Wheat interplanting sunflower is a typical planting mode in Hetao Irrigation Area.By using WIN ISAREG model,this study calculates the reference crop evapotranspiration on the basis of the characteristics of intercropping planting,using the integrated crop coefficient method to determine the wheat intercropping sunflower crop water consumption in whole growth stages.And at the same time through practical results of verified model parameters,finally,actual irrigation system and optimized different scheme of wheat intercropping sunflower evaluated accurately.Optimization irrigation scheme is implementing irrigation when the soil water content down to 70% of the appropriate moisture content,the water of the root layer reaches 85% of field capacity then stop the irrigation.If only the Yellow River water for irrigation water,the optimization scheme is irrigation five times in the whole growth period,then irrigation stops when water reaches 80% of the total effective water in the root layer.

关 键 词：作物耗水量 WIN ISAREG模型 灌溉制度 小麦间作向日葵 

分 类 号：S274.1[农业科学—农业水土工程]