曹文庚, 文爱欣, 南天, 王哲, 高媛媛, 崔亚莉, 孙晓悦. 海河流域典型区地下水回补适宜性评价[J]. 水科学进展, 2023, 34(2): 227-237. DOI: 10.14042/j.cnki.32.1309.2023.02.007
引用本文: 曹文庚, 文爱欣, 南天, 王哲, 高媛媛, 崔亚莉, 孙晓悦. 海河流域典型区地下水回补适宜性评价[J]. 水科学进展, 2023, 34(2): 227-237. DOI: 10.14042/j.cnki.32.1309.2023.02.007
CAO Wengeng, WEN Aixin, NAN Tian, WANG Zhe, GAO Yuanyuan, CUI Yali, SUN Xiaoyue. Evaluation of the suitability of groundwater recharge in typical areas of the Haihe River basin[J]. Advances in Water Science, 2023, 34(2): 227-237. DOI: 10.14042/j.cnki.32.1309.2023.02.007
Citation: CAO Wengeng, WEN Aixin, NAN Tian, WANG Zhe, GAO Yuanyuan, CUI Yali, SUN Xiaoyue. Evaluation of the suitability of groundwater recharge in typical areas of the Haihe River basin[J]. Advances in Water Science, 2023, 34(2): 227-237. DOI: 10.14042/j.cnki.32.1309.2023.02.007

海河流域典型区地下水回补适宜性评价

Evaluation of the suitability of groundwater recharge in typical areas of the Haihe River basin

  • 摘要: 大清河流域是海河流域地下水超采最为突出的地区,为了解决地下水超采问题,本研究开展了流域内山区-平原一体化地下水回补适宜性评价。选取地下水位埋深、渗透系数、距离南水北调中线干渠距离、距离水库距离、降水入渗系数、有效储水空间、坡度和地表高程构建GIS-AHP决策模型得到研究区回补适宜性分区图,并使用数值模拟评估回补效果。研究表明: 回补适宜区主要分布在拒马河、青龙河、唐河、磁河的近山前河段,占总评价区域的4.5%;同时,根据回补适宜评价结果对河道分段精细化补水,能大大减缓地下水储变量下降速度,回补最佳。因此,基于GIS与数值模拟结合的流域地下水回补适宜评价,有助于大幅提高区内水资源利用效率,提供最优超采治理方案。

     

    Abstract: The Daqinghe River basin is the most prominent area of groundwater overdraft in the Haihe River basin.In order to solve the problem of groundwater overdraft, this study carried out the suitability evaluation of integrated groundwater recharge in mountainous and plain areas in the basin.Select the buried depth of groundwater level, permeability coefficient, distance from the main canal of the middle line of the South-to-North Water Transfer, distance from the reservoir, precipitation infiltration coefficient, effective water storage space, slope, and surface elevation to build the GIS-AHP decision model to obtain the zoning map of the suitability of the study area, and use numerical simulation to evaluate the effect of the replenishment.The study shows that the suitable areas for recharge are mainly distributed in the piedmont reaches of Juma River, Qinglong River, Tanghe River and Cihe River, accounting for 4.5% of the total assessed area; at the same time, according to the assessment results of the suitability of recharge, the refined water replenishment scheme for river sections can greatly slow down the decline rate of groundwater storage variables, and the recharge is the best.Therefore, the suitable assessment of groundwater recharge in the basin based on the combination of GIS and numerical simulation is helpful to greatly improve the utilization efficiency of water resources in the region and provide the optimal over-extraction control scheme.

     

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