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首页> 外文期刊>Water Resources Management >Using MODFLOW and GIS to Assess Changes in Groundwater Dynamics in Response to Water Saving Measures in Irrigation Districts of the Upper Yellow River Basin
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Using MODFLOW and GIS to Assess Changes in Groundwater Dynamics in Response to Water Saving Measures in Irrigation Districts of the Upper Yellow River Basin

机译：利用MODFLOW和GIS评估黄河上游灌区节水措施对地下水动态的影响。

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摘要

The irrigation districts of the upper Yellow River basin are highly productive agricultural areas of North China. Due to the severe water scarcity, application of water-saving practices at both farm and district levels are required for sustainable agricultural development. An integrated methodology was developed adopting loose coupling of the groundwater flow model MODFLOW with Arclnfo Geographic Information System to assess the impacts of irrigation water-saving practices and groundwater abstraction foreseen for the year of 2020 on the groundwater dynamics of the Jiefangzha Irrigation System (JFIS) in Hetao Irrigation District, upper Yellow River basin. The model was calibrated and validated with datasets of years 2004 and 2005; the model efficiency EF was respectively 0.98 for calibration and 0.99 for validation. Results of the simulation of the groundwater dynamics of the study area show that water-saving practices referring to canal lining and upgrading hydraulic structures applied in 60% of the area, and upgraded farm irrigation technology in 50% of the area may consist of a reasonable solution. Their implementation would lead to reduce groundwater evaporation by 43 mm and the total diversions from the Yellow River by 208 mm, i.e. about 20% of present volumes diverted. Most of routines and strategies for model construction may also be used for other regions, especially for irrigation districts in the upper Yellow River basin.
机译：黄河流域上游的灌溉区是华北的高产农业区。由于严重的水资源短缺，为了可持续的农业发展，需要在农场和地区一级都采用节水措施。通过采用地下水流模型MODFLOW与Arclnfo地理信息系统的松散耦合，开发了一种综合方法，以评估2020年灌溉节水实践和地下水抽取对解放闸灌溉系统（JFIS）地下水动力学的影响在黄河流域上游河套灌区。该模型已通过2004年和2005年的数据集进行了校准和验证。模型效率EF的校准值分别为0.98和0.99。研究区域地下水动力学的模拟结果表明，节水实践指的是在该地区60％的地区使用运河衬砌和升级水力结构，而在50％的该地区升级农场灌溉技术可能是合理的解。实施这些措施将使地下水蒸发减少43毫米，从黄河引水的总流量减少208毫米，即约占目前流量的20％。模型构建的大多数例程和策略也可用于其他地区，尤其是黄河流域上游的灌溉区。

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  • 来源
    《Water Resources Management》 |2011年第8期|p.2035-2059|共25页
  • 作者

    Xu Xu; Guanhua Huang; Zhongyi Qu; Luis S. Pereira;

  • 作者单位

    Chinese-Israeli International Center for Research and Training in Agriculture,China Agricultural University, Beijing 100083, People's Republic of China,Center for Agricultural Water Research, China Agricultural University, Beijing 100083,People's Republic of China;

    Chinese-Israeli International Center for Research and Training in Agriculture,China Agricultural University, Beijing 100083, People's Republic of China,Center for Agricultural Water Research, China Agricultural University, Beijing 100083,People's Republic of China;

    College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University,Hohhot 010018, People's Republic of China;

    CEER-Biosystems Engineering, Institute of Agronomy, Technical University of Lisbon,Tapada da Ajuda, 1349-017 Lisbon, Portugal;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    groundwater modelling; groundwater depth; groundwater evaporation; irrigation systems improvement; seepage and percolation; hetao irrigation district;

    机译：地下水模拟;地下水深度地下水蒸发;灌溉系统改善;渗流与渗透;河套灌区;

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