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内蒙古河套灌区冻融土壤水分迁移简化模型
引用本文:马睿,伍靖伟,查元源,高鸿永,杨金忠.内蒙古河套灌区冻融土壤水分迁移简化模型[J].灌溉排水学报,2012,31(6):1-5.
作者姓名:马睿  伍靖伟  查元源  高鸿永  杨金忠
作者单位:1. 武汉大学水利水电学院/水资源与水电工程科学国家重点实验室,武汉,430072
2. 河套灌区义长灌域管理局/内蒙古五原县义长灌域管理局,内蒙古五原,015000
基金项目:基金项目:“十二五”国家科技支撑计划课题,国家自然科学基金项目
摘    要:根据内蒙古河套灌区义长灌域1990—1999年和2002—2007年14个冻融循环的实测资料,由水量平衡原理,估算了冻结过程中地下水向冻层的迁移量,以及消融过程中冻层水分对地下水的补给量和包气带含水率的变化。提出了通过冻结初期地下水埋深、最大地下水埋深和融通时地下水埋深3个实测实验数据,估算冻融循环中水分迁移量的方法,并提出了用经验公式拟合正冻期地下水降深、最大冻深和消融期地下水位上升高度的方法。

关 键 词:水分迁移  气温负积温  冻融循环  水量平衡

Simplified Model Simulating Soil Moisture Migration during Freeze and Thaw in Hetao Irrigation District, Inner Mongolia
MA Rui,WU Jing-wei,ZHA Yuan-yuan,GAO Hong-yong,YANG Jin-zhong.Simplified Model Simulating Soil Moisture Migration during Freeze and Thaw in Hetao Irrigation District, Inner Mongolia[J].Journal of Irrigation and Drainage,2012,31(6):1-5.
Authors:MA Rui  WU Jing-wei  ZHA Yuan-yuan  GAO Hong-yong  YANG Jin-zhong
Affiliation:1(1.State Key Laboratory of Water Resources and Hydropower Engineering Science,School of Water Resources and Hydroelectric Engineering,Wuhan University,Wuhan 430072,China;2.Authority of Yichang Irrigated Area of Hetao Irrigation District;Authority of Yichang Irrigated Area,Wuyuan 015000,China)
Abstract:The measured data,which were gathered from 14freeze-thaw cycles in 1990 — 1999and 2002 — 2007in Hetao irrigation district,were analyzed in this paper.The method of water balance analysis was adopted to estimate the amount of soil moisture migration in these cycles.This paper proposed a method to estimate the quantity of migration water according to groundwater tables through the entire freeze-thaw cycle.Meanwhile,some empirical equations were proposed to calculate the freezing depth,and groundwater drawdown and rise in freeze-thaw cycle.
Keywords:water migration  accumulated negative temperature  freeze-thaw cycle  water balance analysis
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