| 大清河流域平原区地下水人工补给潜力与补给方式分析 |
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| 引用本文： | 杜新强,王钰升,冶雪艳,路莹,赵婧彤,张赫轩.大清河流域平原区地下水人工补给潜力与补给方式分析[J].吉林大学学报(地球科学版),2022,52(2):535-549. |
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| 作者姓名： | 杜新强 王钰升 冶雪艳 路莹 赵婧彤 张赫轩 |
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| 作者单位： | 吉林大学新能源与环境学院，长春130021 |
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| 基金项目： | 国家重点研发计划项目（2018YFC0406503） |
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| 摘 要： | 为了有效提升大清河流域平原区地下水水位，亟需在此区域开展地下水人工补给工程，并确定合理的建设位置及有效的补给方式。首先基于研究区可利用补给水源、地下水位、地表高程、地表坡度及与河道距离5个指标的分布特征，构建地下水补给潜力评价体系，采用ArcGIS空间分析功能对研究区进行了地下水人工补给潜力区划；然后在此评价体系基础上，在典型人工补给高潜力区进一步开展系列野外现场试验，探讨适宜可行的地下水人工补给方式。结果表明：研究区西北部及南部河道附近区域开展人工补给工程潜力较高，而中部、北部及西南部远离河道的区域潜力较低。高潜力区——白沟引河地段包气带及含水层渗透性良好，整体渗透系数均在5 m/d左右或更高，适宜地表补给，但河床渗透性较差，渗透系数基本在0.01~0.09 m/d间，若通过河道补给需配合清淤等措施。其中，在上游及中游沿岸适宜将河道水通过生态水渠引至修建的地表入渗池或借助天然渗坑内入渗补给，在中下游沿岸区域适宜将补给水进行严格的水处理后采用井灌方式补给，在白沟引河中下游河道适宜修建拦水坝，利用河道进行入渗补给。
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| 关 键 词： | 地下水人工补给 大清河流域平原区 野外试验 补给潜力 ArcGIS空间分析 |
| 收稿时间： | 2020-07-20 |
Artificial Aquifer Recharge Potential and Methodsin Plain Area of Daqing River Basin |
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| Du Xinqiang,Wang Yusheng,Ye Xueyan,Lu Ying,Zhao Jingtong,Zhang Hexuan.Artificial Aquifer Recharge Potential and Methodsin Plain Area of Daqing River Basin[J].Journal of Jilin Unviersity:Earth Science Edition,2022,52(2):535-549. |
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| Authors: | Du Xinqiang Wang Yusheng Ye Xueyan Lu Ying Zhao Jingtong Zhang Hexuan |
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| Institution: | College of New Energy and Environment, Jilin University, Changchun 130021, China |
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| Abstract: | A large-scale groundwater depression cone has been induced by over-pumping groundwater in the plain of Daqing River basin. As the main current recharge way of groundwater， river infiltration has limited effect, which calls for comprehensive management of aquifer recharge for groundwater level recovery to avoid further adverse effects on ecological environment and social environment. In this study, a potential evaluation system for artificial aquifer recharge was established involving 5 indexes: Elevation, slope, groundwater level, recharge water source, and distance to available water sources. ArcGIS was applied for mapping the potential of managed aquifer recharge in the study area. Besides, a series of field tests were carried out in the typical high-potential recharge areas to explore appropriate and feasible recharge methods. The results show that the aquifer recharge potential is huge in the northwest and south part of the study area, but low in the central, north and southwest parts. For the best potential area along the Baigou Channel, the permeability of vadose zone and aquifer is suitable for surface recharge with the overall permeability coefficient is 5 m/d or higher, while the permeability of riverbed is poor (0.01-0.09 m/d). Measures, such as silt removal are recommended to be taken before recharge through river in such area. Finally, three artificial recharge methods are suggested in different sections: Artificial or natural infiltration ponds can be adopted along the upper and middle-lower reaches of the river where water comes from river through ecological channels; Well injection can be used in the east of middle-upper and lower reaches under the condition of river water purification by strict water treatment processes before recharge; Dams can be built in the lower reaches of the Baigou Channel to increase infiltration through the channel bed. |
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| Keywords: | managed aquifer recharge plain of Daqing River basin field tests recharge potential ArcGIS spatial analysis |
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