邢文乐;马瑞;孙自永;胡雅璐;葛孟琰;常启昕;

• 1:中国地质大学(武汉)环境学院
• 2:中国地质大学(武汉)盆地水文过程与湿地生态恢复学术创新基地

摘要(Abstract)：

通过对敦煌盆地38个地下水样品的采集和测试,运用描述性统计法和因子分析法对地下水的化学特征及其成因进行了分析。在此基础上,利用美国农业部(USDA)评价方法和Wilcox图解法对地下水质进行了评价。研究结果表明:敦煌盆地浅层地下水中主要阳离子为Ca~(2+)、Na~+、Mg~(2+),主要阴离子从补给区→径流区→排泄区由HCO_3~-→SO_4~(2-)→Cl~-转换;深层地下水中阳离子以Na~+、Mg~(2+)为主,阴离子主要为Cl~-、SO_4~(2-)、HCO_3~-,且三者含量较为接近;影响盆地内地下水化学特征的主要因素为蒸发浓缩作用和矿物的溶解作用;水质评价结果显示,可作为农作物灌溉用水的水样约占总水样的26.3%,分布在党河洪积扇扇顶补给区、扇中与扇缘径流区和盆地东南部细土平原径流区。

关键词(KeyWords)： 水化学特征;因子分析;灌溉水水质评价;敦煌盆地

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(91325101)

作者(Author): 邢文乐;马瑞;孙自永;胡雅璐;葛孟琰;常启昕;

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DOI:

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