| 宁夏银北平原地下水中砷的分布特征及其富集因素 |
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| 引用本文： | 田春艳,张福存. 宁夏银北平原地下水中砷的分布特征及其富集因素[J]. 安全与环境工程, 2010, 17(2): 22-25 |
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| 作者姓名： | 田春艳 张福存 |
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| 作者单位： | 中国地质大学生物地质与环境地质教育部重点实验室,武汉,430074;中国地质调查局水文地质环境地质调查中心,河北,保定,071051 |
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| 基金项目： | 国家自然科学基金项目(40872157、40830748);;中国地质调查局调查项目(1212010634714);;中俄合作基金项目(NSFC-RFBR-40711120189);;教育部新世纪优秀人才支持计划项目(NCET-07-0733) |
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| 摘 要： | 通过对宁夏银北平原地下水中砷的分布特征、来源及富集因素进行研究,结果表明:银北平原地下水砷异常地段的分布具有明显的地带性,从山前洪积倾斜平原前缘向冲湖积平原中心,地下水中砷含量递增,高砷地下水沿黄河河道自南向东北局部呈点状分布,总体上呈条带状展布,且东北部砷含量普遍高于西南部,主要富集在0～40 m深度的含水层中;引黄灌溉的黄河水与贺兰山区的煤系地层是平原内地下水中砷的主要来源;特殊的古地理环境特征、地下水径流条件、氧化还原环境及干旱半干旱的气候条件是地下水中砷富集的重要因素。
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| 关 键 词： | 地下水 砷 分布特征 富集因素 银北平原 |
Distribution and Enrichment of As in Groundwater in Northern Yinbei Plain |
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| TIAN Chun-yan,ZHANG Fu-cun. Distribution and Enrichment of As in Groundwater in Northern Yinbei Plain[J]. Safety and Environmental Engineering, 2010, 17(2): 22-25 |
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| Authors: | TIAN Chun-yan ZHANG Fu-cun |
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| Affiliation: | 1.Key Laboratory of Biogeology and Environmental Geology of Ministry of Education/a>;China University of Geosciences/a>;Wuhan 430074/a>;China/a>;2.Centre for Hydrogeology and Environmental Geology/a>;CGS/a>;Baoding 071051/a>;China |
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| Abstract: | This paper discusses the distribution,sources and enrichment factors of arsenic in the groundwater in Northern Yinchuan Plain.The study indicates that: first,the distribution of high As in groundwater exhibits a distinct spatial zonation.From the piedmont alluvial plain to the center of the alluvial-lacustrine plain,the content of As in the groundwater becomes higher.High-arsenic groundwater is distributed by spotted state regionally,but by banding macroscopicly,stretching south-northeast in Yinchuan Plain.... |
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| Keywords: | groundwater arsenic distribution enrichment factor Yinbei Pain |
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