| 北海市滨海地下水天然偏酸性特征及其影响因素 |
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| 引用本文： | 欧业成,陈润玲,黄喜新,周训. 北海市滨海地下水天然偏酸性特征及其影响因素[J]. 桂林工学院学报, 2009, 29(4) |
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| 作者姓名： | 欧业成 陈润玲 黄喜新 周训 |
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| 作者单位： | 1. 广西北海水文工程矿产地质勘察研究院,广西,北海,536000
2. 中国地质大学,水资源与环境学院,北京,10008 |
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| 基金项目： | 广西科技厅科学研究与技术开发计划项目，中国地质调查局地质大调查项目 |
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| 摘 要： | 广西北海市滨海平原松散沉积物中分布有潜水含水层和承压含水层,天然条件下地下水的pH 值普遍偏低,一般为4.5～6.5,最低3.33,且地下水的pH值在时空上呈现出一定规律的分布:在垂向上呈现由潜水-浅部承压水-深部承压水逐步降低的序列,在平面上地下水的pH值向海域方向略为减小;在时间上,pH值随季节上下波动,一般在雨季略高于旱季.一定酸度的大气降水,土壤矿物与化学成分,含水层的岩性、介质成分和结构等,是偏酸性地下水形成的物质基础,水循环状况则是偏酸性地下水形成的动力条件.
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| 关 键 词： | 天然偏酸性地下水 pH值 影响因素 北海 |
Characteristics and Genesis of Natural Weak Acidic Groundwater on Beihai Coast |
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| OU Ye-cheng,CHEN Run-ling,HUANG Xi-xin,ZHOU Xun. Characteristics and Genesis of Natural Weak Acidic Groundwater on Beihai Coast[J]. Journal of Guilin University of Technology, 2009, 29(4) |
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| Authors: | OU Ye-cheng CHEN Run-ling HUANG Xi-xin ZHOU Xun |
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| Affiliation: | OU Ye-cheng1,CHEN Run-ling1,HUANG Xi-xin1,ZHOU Xun2(1.Beihai Institute of Hydrogeology,Engineering Geology and Mineral Resources,Beihai 536000,China,2.School of Water Resources and Environment,China University of Geosciences,Beijing,100083,China) |
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| Abstract: | Phreatic and confined aquifers are found in the unconsolidated sediments in coastal plain of Beihai,Guangxi.Under natural condition,pH of groundwater in the aquifers is low,ranging commonly from 4.5 to 6.5,and the minimum value is 3.33.It is found that the pH value of groundwater presents the regularity distribution with time and space.In vertical direction,pH value presents the sequence of gradually decrease from phreatic water,shallow confined water to deep-confined water.It decreases from land-area to se... |
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| Keywords: | natural weak acidic groundwater pH genesis Beihai |
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