冬小麦生育期潜水蒸发估算模型研究  

Research on Estimation Model of Phreatic Water Evaporation in Winter Wheat Growth Period

作　　者：许浒[1] 王丽丽 王一杰 周超 索梅芹 王健[4] XU Hu;WANG Li-li;WANG Yi-jie;ZHOU Chao;SUO Mei-qin;WANG Jian(Anhui Key Laboratory of Water Resources,Water Resources Research Institute of Anhui Province,Bengbu 233000,Anhui Province,China;Anhui Huaihai Environmental Protection Technology Co.Ltd,Bengbu 233000,Anhui Province,China;Anhui Huaihe Water Resources Technology Co.Ltd,Bengbu 233000,Anhui Province,China;Hebei University of Engineering,Handan 056021,Hebei Province,China)

机构地区：[1]安徽省(水利部淮委)水利科学研究院水利水资源安徽省重点实验室,安徽蚌埠233000 [2]安徽淮海环保科技有限公司,安徽蚌埠233000 [3]安徽淮河水资源科技有限公司,安徽蚌埠233000 [4]河北工程大学,河北邯郸056021

出　　处：《中国农村水利水电》2021年第9期102-105,111,共5页China Rural Water and Hydropower

基　　金：国家自然科学基金重点项目(41830752);河北省自然科学基金面上项目(D2019402235);邯郸市科技局项目(1434201078-2)。

摘　　要：潜水是作物生长可利用的水源之一。采用五道沟实验站1991年10月-2020年5月潜水蒸发和水文气象长系列实测资料,分析了冬小麦生育期不同埋深潜水(0-5 m)蒸发与水面蒸发、地表温度、空气绝对湿度和气温4个因素的变化趋势,计算了冬小麦各生育期地下水位不同埋深下潜水蒸发量分别与4个气象因子的比值(潜水蒸发系数),从而构建了潜水蒸发系数与埋深的函数关系。结果表明:基于4个气象因子的潜水蒸发系数与埋深的拟合关系,均表现为:出苗-分蘖期指数函数拟合效果最好,其他生育期二项式函数拟合效果最好,R2均达到0.89以上,拟合精度较高,可用于淮北地区黄潮土冬小麦生育期间潜水蒸发量的估算。Phreatic water is one of the available water sources for crop growth.In this paper,the long-term observation data of phreatic water evaporation and hydrometeorology at Wudaogou Experiment Station from October 1991 to May 2020 are used,the variation trend of phreatic water evaporation and water surface evaporation,surface temperature,air absolute humidity and air temperature at different buried depths(0-5 m)in winter wheat growth period are analyzed,the ratios of phreatic water evaporation to four meteorological factors at different depths of groundwater table in different growth stages of winter wheat are calculated(evaporation coefficient of phreatic water),the functional rela⁃tionship between evaporation coefficient of phreatic water and buried depth is constructed.The results show that based on four meteorological factors,the fitting relationship between phreatic water evaporation coefficient and buried depth is analyzed,the results show that all of them are positive:the exponential function of emergence tillering stage is the best,and binomial function of other growth stages is the best,the R2 is above 0.89,the fitting accuracy is high,it can be used to estimate the phreatic water evaporation of Winter Wheat in yellow fluvo aquic soil in Huaibei Area.

关 键 词：冬小麦 潜水蒸发系数 气象因子 埋深 淮北地区 

分 类 号：TV213.9[水利工程—水文学及水资源]