| 摘要: |
| 为了便于对灌区的节水灌溉措施进行生态环境影响评价，采用有限差分法，利用MODFLOW软件建立了银川平原浅层地下水水流模型，并对银川平原浅层地下水进行了数值模拟。结果表明，在模型的识别阶段和验证阶段，所有观测孔水头的计算值与观测值,在各时段拟合误差绝对值的平均值分别为0.055和0.105 m，所有结果显示两者基本一致，说明所建模型可用于灌区水资源管理的仿真计算。 |
| 关键词: 地下水流模型 数值模拟 Modflow 银川平原 |
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| 基金项目:国家自然科学基金重点项目（50239090）；华北水利水电学院高层次人才科研启动项目 |
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| Groundwater flowing model and its numerical simulation in Yinchuan plain |
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| Abstract: |
| In order to evaluate the ecological environment influence of water saving in irrigation area,the article adopts limited differences method and makes use of Modflow software to build up a shallow layer groundwater water flowing model in Yinchuan plain,and carries on numerical simulation in this area.In the fit and test phases of model,the average absolute value of errors between calculation value and observation value of water head in all stages is 0.055 m,and 0.105 m，respectively.All results show that the both are basically consistent and the model can be used for imitating calculation for water resources management in irrigation district. |
| Key words: groundwater flowing model numerical simulation modflow Yinchuan plain |
