基于Processing MODFLOW的干旱区内陆河灌区地下流数值模拟

随着新疆北疆地区大规模膜下滴灌技术的推广与实施,必然改变流域的水文生态过程,产生新的水盐平衡关系。为实现对灌区水资源的科学管理,便于对灌区大面积滴灌条件下进行生态环境评价,实现对地下水位的安全控制,达到对灌区盐渍化防治目的,根据新疆内陆河流域玛纳斯河流域典型灌区147农场的水文地质条件,运用地下水数值模拟软件Processing MODFLOW建立了地下水数值模型,并对模型进行了校正和评价。结果表明：通过对模型的校正和评价,表明模拟值与观测值基本一致,模型可以对该灌区的地下水动态进行模拟和预测。

Groundwater Modeling of Arid Continental River Irrigation District Based on Processing MODFLOW

With the development of large-scale areas of drip irrigation under film in North Xinjiang,the eco-hydrological processes will change and form the new water-salt balance.In order to achieve scientific management of water resources and control groundwater,ecological environment quality is evaluated and the dynamic balance of water and salt is analyzed.With the largest oasis of Manas River Valley as study area,the hydro-ecological processing MODFLOW is used to establish numerical model of groundwater,calibrate and evaluate the model.The result shows that a high degree of fitness between prediction and observation,this model can simulate and forecast groundwater dynamic in this irrigation area by the calibration and validation.The final outcome of this study is to give the predictive capacity to use rationally the groundwater in arid areas.