| 基于河岸带地球化学特征的河水-地下水交互边界识别——以广州市流溪河为例 |
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| 引用本文： | 杨志刚,高磊,陈建耀,梁作兵,李绍恒,李睿,王卓微,张艺芳,张狄,林韵.基于河岸带地球化学特征的河水-地下水交互边界识别——以广州市流溪河为例[J].环境科学学报,2019,39(6):1842-1851. |
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| 作者姓名： | 杨志刚 高磊 陈建耀 梁作兵 李绍恒 李睿 王卓微 张艺芳 张狄 林韵 |
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| 作者单位： | 中山大学地理科学与规划学院,广东省城市化与地理环境空间模拟重点实验室,广州510275;中山大学地理科学与规划学院,广东省城市化与地理环境空间模拟重点实验室,广州510275;中山大学地理科学与规划学院,广东省城市化与地理环境空间模拟重点实验室,广州510275;中山大学地理科学与规划学院,广东省城市化与地理环境空间模拟重点实验室,广州510275;中山大学地理科学与规划学院,广东省城市化与地理环境空间模拟重点实验室,广州510275;中山大学地理科学与规划学院,广东省城市化与地理环境空间模拟重点实验室,广州510275;中山大学地理科学与规划学院,广东省城市化与地理环境空间模拟重点实验室,广州510275;中山大学地理科学与规划学院,广东省城市化与地理环境空间模拟重点实验室,广州510275;中山大学地理科学与规划学院,广东省城市化与地理环境空间模拟重点实验室,广州510275;中山大学地理科学与规划学院,广东省城市化与地理环境空间模拟重点实验室,广州510275 |
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| 基金项目： | 国家自然科学基金（No.41771027，41701585，41611140112，41371055）；广东省自然科学基金（No.2017A030310309）；广州市科学研究计划项目（No.201510010300）；中央高校基本科研业务费专项资金（No.17lgpy40）；广东省水利科技创新项目（2018年度） |
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| 摘 要： | 河水-地下水交互作用对河流水质净化、流域水生态健康和河岸土地合理规划具有重要意义.本文以广州市流溪河为研究对象,实时监测河水和河岸带地下水基本理化指标并采集水样和土样进行水体主离子、氮形态、金属离子浓度、氘(δD)氧(δ~(18)O)同位素和土壤渗透系数(K)测试分析.结果表明:监测期间以河水侧向补给地下水为主,对地下水水位的影响范围在距河岸10 m内;距河岸1 m处地下水溶解氧(DO)浓度、电导率(EC)和氧化还原电位(ORP)变化明显,变异系数(n=7)分别为30.9%、42.0%和44.4%.河水和河岸带地下水水化学类型均为HCO_3-Ca型,受碳酸盐岩风化控制.河水入渗补给地下水初期,河岸带含水层向还原环境转化(ORP平均下降92.25 mV),非饱和带Mn氧化物发生还原性溶解,地下水中Mn~(2+)浓度逐渐增加并达最大值(0.52 mg·L~(-1));基于δD、δ~(18)O和Cl~-浓度的混合模型估算的河水对距河岸5 m处地下水的贡献率分别为10.4%、11.6%和11.5%,表明监测断面河水-地下水交互边界约在距河岸5 m处.
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| 关 键 词： | 流溪河 河水-地下水交互作用 水化学特征 交互边界识别 |
| 收稿时间： | 2018/8/10 0:00:00 |
| 修稿时间： | 2019/3/15 0:00:00 |
Identification of interaction boundary during the river-groundwater interactions based on geochemical characteristics of riparian zone: A case study in the Liuxi River |
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| YANG Zhigang,GAO Lei,CHEN Jianyao,LIANG Zuobing,LI Shaoheng,LI Rui,WANG Zhuowei,ZHANG Yifang,ZHANG Di and LIN Yun.Identification of interaction boundary during the river-groundwater interactions based on geochemical characteristics of riparian zone: A case study in the Liuxi River[J].Acta Scientiae Circumstantiae,2019,39(6):1842-1851. |
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| Authors: | YANG Zhigang GAO Lei CHEN Jianyao LIANG Zuobing LI Shaoheng LI Rui WANG Zhuowei ZHANG Yifang ZHANG Di and LIN Yun |
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| Affiliation: | Guangdong Provincial Key Laboratory of Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275,Guangdong Provincial Key Laboratory of Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275,Guangdong Provincial Key Laboratory of Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275,Guangdong Provincial Key Laboratory of Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275,Guangdong Provincial Key Laboratory of Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275,Guangdong Provincial Key Laboratory of Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275,Guangdong Provincial Key Laboratory of Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275,Guangdong Provincial Key Laboratory of Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275,Guangdong Provincial Key Laboratory of Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275 and Guangdong Provincial Key Laboratory of Urbanization and Geo-simulation, School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275 |
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| Abstract: | |
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| Keywords: | Liuxi River river water-groundwater interactions hydrochemical characteristics identification of interaction boundary |
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