基于地表-地下水文过程模拟的农业灌溉开采量估算  

Estimation of groundwater withdrawal for agricultural irrigation based on surface-groundwater hydrological simulation

作　　者：杨柳[1,2] 陈喜[1,2] 章树安[3] 张志才[1,2] 张俊芳[1,2] 高满[1,2] 

机构地区：[1]河海大学水文水资源与水利工程科学国家重点实验室,南京210098 [2]河海大学水文水资源学院,南京210098 [3]水利部水文局,北京100053

出　　处：《南水北调与水利科技》2016年第1期54-58,共5页South-to-North Water Transfers and Water Science & Technology

基　　金：国家自然科学基金(41401029);河南理工大学博士基金(B204-071)~~

摘　　要：通过发展新安江模型中非饱和带、饱和含水层水量平衡计算及入渗补给、潜水蒸发、河流-地下水水量交换动态模拟功能,在对作物灌溉需水量的估算基础上,利用河流流量和地下水埋深观测资料进行模型反演,实现对灌溉开采量的估算。在淮北平原沙颖河流域井灌区应用表明,该方法不仅较好地模拟河川径流和地下水埋深动态变化,而且较好地估算出灌溉开采量动态变化过程及其对地下水埋深的影响。地下水开采量估算及地下水位动态变化对地下水控制管理具有重要价值。In this study,we developed a ＂ Xinanjing＂ model in balancing water storage of both unsaturated and saturated zones,then quantified precipitation recharge,groundwater evaportranspiration,and exchange between river flow and groundwater flow.The model was used to calibrate irrigation amount in terms of both observed flow discharge and depth to groundwater table,and estimated irrigation demand of crops.The established method was further applied in the irrigated area of Shaying River Basin,one of plain areas in Huhai River.The results indicated that our method not only well simulate river flow discharge and depth to groundwater table,but also reliably estimate variation of groundwater withdrawal and its influence on changes of groundwater table.Estimation of groundwater withdrawal and variation of groundwater level is very valuable for management of groundwater resources.

关 键 词：地下水开采量 水文模拟 新安江模型 农灌区 

分 类 号：TV213[水利工程—水文学及水资源]