交替积水条件下降雨入渗补给量计算模型对比分析  

Analysis of Models for Precipitation Recharge Under Intermittent Ponding and Drying Conditions

作　　者：宋传华[1] 吴凤燕 胡铁松[1] 谈广鸣[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,武汉430072 [2]湖北省水利水电科学研究院,武汉430070

出　　处：《中国农村水利水电》2015年第6期35-39,42,共6页China Rural Water and Hydropower

基　　金：国家自然科学基金重点项目(51339004);国家自然科学基金面上项目(51479142);湖北省水利重点科技项目(HBALKJ201304)

摘　　要：选取适应复杂上边界条件的一维分层土壤水分运动数值模型和Khepar模型,利用安徽蚌埠五道沟水文实验站蒸渗仪实测资料对两种模型模拟计算交替积水条件下降雨入渗补给量的能力进行了比较和分析。结果表明,复杂上边界模型在模拟计算交替积水条件下降雨入渗补给量时要优于Khepar模型,但两种模型的计算结果总体上均小于实测值。两种模型在模拟计算短时间强降雨条件下降雨入渗补给量时均较差。Choosing the one-dimensional layered soil moisture movement numerical model adapting complicated upper surface bounda‐ry conditions and Khepar model ,the simulation functions of these two models are examined by the observation data of the Wudaogou Hydrological Experiment Station ,Anhui province .The results show that the complicated upper surface boundary condition model is better than Khepar model in calculating the precipitation recharge under intermittent ponding and drying conditions .But the simula‐tion value of two models are less than measured value .The results of the two models calculating the precipitation recharge under the heavy rainfall in a short time conditions are poor .

关 键 词：降雨入渗补给量 交替积水 复杂上边界模型 Khepar模型 

分 类 号：TV11[水利工程—水文学及水资源]