| 华南滨海小流域降雨入渗对地下水的补给分析 |
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| 引用本文： | 谢丽纯,陈建耀,付丛生,黄小兰,蒋华波,董林垚,陈志良.华南滨海小流域降雨入渗对地下水的补给分析[J].生态环境,2011(Z2). |
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| 作者姓名： | 谢丽纯 陈建耀 付丛生 黄小兰 蒋华波 董林垚 陈志良 |
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| 作者单位： | 中山大学地理科学与规划学院;江西师范大学地理与环境学院;广西水利电力勘测设计研究院;环境保护部华南环境科学研究所; |
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| 基金项目： | 广东省自然科学基金项目(9251027501000021); 广东水利科技创新与推广项目(2009-2011); 国家863计划项目(SQ2009AA06XK1482462) |
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| 摘 要： | 以华南滨海小流域——中山大学滨海水循环试验基地(试验基地)作为研究区,在对该流域地下水和雨水分别进行采样、实验分析的基础上,利用氯量平衡法(CMB)与地下水动态法计算了该流域的降雨入渗补给系数与给水度。研究发现,试验基地地下水主要受降雨补给,地下水埋深在雨季(4—9月)、旱季(10—3月)的变动范围大致为0～1.5 m与0～0.5 m。根据CMB计算结果,补给区、中间区雨季降雨入渗补给系数分别为旱季的1.3～1.6倍和1.3～2.0倍,且补给区大于中间区(M5井除外)。利用地下水动态法计算次降雨入渗补给系数,所得雨季、旱季的均值(7.6%和4.6%)与CMB计算结果(7.7%和5.3%)较为接近。给水度、雨强与入渗补给系数均存在一定的线性关系。将地下水埋深分别与降雨入渗补给量及潜水蒸发量进行多项式拟合对比,发现降雨入渗对地下水的最大入渗补给埋深约为2.3 m,当埋深为3.1 m时,地下水可获得最大净补给量。
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| 关 键 词： | 滨海小流域 氯量平衡 地下水动态法 入渗系数 给水度 |
Observation and analyses of groundwater recharge from rainfall infiltration in a coastal watershed,south China |
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| XIE Lichun ,CHEN Jianyao ,FU Congsheng,HUANG Xiaolan ,JIANG Huabo ,DONG Linyao ,CHEN Zhiliang .School of Geography , Planning,Sun Yat-sen University,Guangzhou ,China,.School of Geography , Environment Sciences,Jiangxi Normal University,Nanchang ,.Guangxi Water , Power Design Institute,Nanning ,.South China Institute of Environmental Sciences.MEP,Guangzhou.Observation and analyses of groundwater recharge from rainfall infiltration in a coastal watershed,south China[J].Ecology and Environmnet,2011(Z2). |
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| Authors: | XIE Lichun CHEN Jianyao FU Congsheng HUANG Xiaolan JIANG Huabo DONG Linyao CHEN Zhiliang School of Geography Planning Sun Yat-sen University Guangzhou China School of Geography Environment Sciences Jiangxi Normal University Nanchang Guangxi Water Power Design Institute Nanning South China Institute of Environmental SciencesMEP Guangzhou |
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| Institution: | XIE Lichun 1,CHEN Jianyao 1,FU Congsheng1,HUANG Xiaolan 1,2,JIANG Huabo 1,3,DONG Linyao 1,CHEN Zhiliang 4 1.School of Geography and Planning,Sun Yat-sen University,Guangzhou 510275,China,2.School of Geography and Environment Sciences,Jiangxi Normal University,Nanchang 330022,3.Guangxi Water and Power Design Institute,Nanning 530023,4.South China Institute of Environmental Sciences.MEP,Guangzhou 510655 |
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| Abstract: | Infiltration coefficients from rainfall and specific yield of unsaturated aquifer are two important parameters to define groundwater recharge,which is a key issue in the relevant research on surface water and groundwater interaction.Rainfall and change of groundwater level have been monitored at Zhuhai Campus of Sun Yat-sen University since 2006 at an interval of 30 minutes,and groundwater and rainwater samples been collected monthly and analyzed for major ions.Infiltration coefficients from rainfall of eve... |
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| Keywords: | coastal watershed chloride mass-balance groundwater regime infiltration coefficient specific yield |
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