| 河套灌区井渠结合地下水数值模拟及均衡分析 |
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| 引用本文： | 杨洋,朱焱,伍靖伟,余乐时,杨金忠. 河套灌区井渠结合地下水数值模拟及均衡分析[J]. 排灌机械工程学报, 2018, 36(8): 732-737. DOI: 10.3969/j.issn.1674-8530.18.1022 |
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| 作者姓名： | 杨洋 朱焱 伍靖伟 余乐时 杨金忠 |
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| 作者单位： | 1.武汉大学水资源与水电工程科学国家重点实验室, 湖北 武汉 430072; 2.福建省三明市尤溪县政府办公室, 福建 三明 365100 |
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| 摘 要： | 建立了河套灌区三维地下水数值模型,用2006-2013年灌区实测地下水埋深资料对模型进行率定和验证,并在规划的井渠结合区内,设置3种不同井灌区灌溉定额和3种秋浇频率,组合共9种井渠结合节水情景,分别分析了9种节水情景下的地下水动态变化.结果表明:井渠结合后全灌区地下水埋深范围为1.863~2.029 m,较现状条件增加0.084~0.250 m;不同灌域结合区井渠结合后地下水埋深差别很大,解放闸结合区地下水埋深最大,为2.308~2.803 m,永济结合区地下水埋深最小,为2.079~2.455 m;井渠结合后,入渗补给量减少2.01×108 ~3.63×108 m3/a,潜水蒸发量减少1.69×108 ~3.03×108 m3/a.
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| 关 键 词： | 地下水 数值模拟 井渠结合 节水 河套灌区 |
| 收稿时间： | 2018-04-09 |
Numerical modeling and water balance analysis of groundwater under conjunctive use of groundwater and surface water in Hetao Irrigation District |
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| YANG Yang,ZHU Yan,WU Jingwei,YU Leshi,YANG Jinzhong. Numerical modeling and water balance analysis of groundwater under conjunctive use of groundwater and surface water in Hetao Irrigation District[J]. Journal of Drainage and Irrigation Machinery Engineering, 2018, 36(8): 732-737. DOI: 10.3969/j.issn.1674-8530.18.1022 |
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| Authors: | YANG Yang ZHU Yan WU Jingwei YU Leshi YANG Jinzhong |
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| Affiliation: | 1.State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, Hubei 430072, China; 2.Youxi County Government of Sanming, Fujian Province, Sanming, Fujian 365100, China |
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| Abstract: | A three-dimensional groundwater model of Hetao Irrigation District was established. Model parameters were calibrated and validated with datasets from 2006 to 2013. Then, the numerical model was applied to estimate the impacts of conjunctive use of groundwater and surface water under 9 water saving scenarios with 3 different irrigation quotas and 3 autumn irrigation frequencies. The simulating results indicate that the water table depth is 1.863-2.029 m in the whole district, which increases by 0.084-0.250 m compared with that before the conjunctive use of groundwater and surface water. The value of groundwater decline varies considerably in different conjunctive areas. The deepest water table depth is in Jiefangzha conjunctive area, which is 2.308-2.803 m. And the shallowest is 2.079-2.455 m in Yongji conjunctive area. The amouns of recharge and phreatic water evaporation decreases by 2.01×108-3.63×108 m3/a and 1.69×108-3.03×108 m3/a respectively. |
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| Keywords: | groundwater numerical simulation conjunctive use of groundwater and surface water water-saving Hetao Irrigation District |
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