摘要
地下水质量现状评价对后期合理利用地下水资源及地下水环境保护起着重要的作用。利用在新疆叶尔羌河下游平原区图木舒克市境内采取的35组地下水质量检测数据分析,32组地下水质量属Ⅴ类。选取超Ⅴ类限值的浑浊度、总硬度、溶解性总固体、硫酸盐、氯化物、钠、亚硝酸盐、氟化物、镉、铅等10项作为评价指标,基于主成分分析法建立地下水质量综合评价模型,提出地下水质量Q值计算方法及Q值等级细化分类标准,将属于Ⅴ类的地下水细化为Ⅴ_(1)—Ⅴ_(4)类。评价结果表明:2组地下水质量属Ⅴ_(2)、24组地下水质量属Ⅴ_(3)、6组地下水质量属Ⅴ_(4)。根据Q值可直观地判断地下水质量的优劣,并且可为同类别地下水挑选相对水质较好的情况提供参考依据。
Evaluating groundwater quality plays an important role in the rational use of groundwater resources and groundwater environmental protection in the later period.Among 35 groups of groundwater quality test data taken in Tumxuk City,a plain area in the lower reaches of the Yarkant River in Xinjiang,the groundwater quality of 32 groups is Class V.A comprehensive evaluation model of groundwater quality is established by principal component analysis(PCA) with ten factors exceeding thresholds of Class V as evaluation indexes,including turbidity,total hardness,total dissolved solids,sulfates,chlorides,sodium,nitrites,fluorides,cadmium,and lead.Further,this paper proposes the method of calculating the Q value of groundwater quality and the fine classification standard of Q value,on the basis of which the groundwater in Class V can be sub-classified into V_(1)—V_(4) classes.The evaluation results show that the groundwater quality in 2,24,and 6 groups is V_(2),V_(3),and V_(4),respectively.According to the Q value,the quality of groundwater can be judged directly,and it can provide a reference basis for selecting relatively good water quality from the same category of groundwater.
作者
邓恩松
刘玉疆
马宁昕
黄顺勇
DENG Ensong;LIU Yujiang;MA Ningxin;HUANG Shunyong(XPCC Surveying&Designing Institute(Group)Co.,Ltd.,Urumqi 832000,China;School of Geology and Mining Engineering,Xinjiang University,Urumqi 830046,China;Henan Geological Bureau of China Chemical Geology and Mine Bureau,Zhengzhou 450000,China;PowerChina Chengdu Engineering Corporation Limited,Chengdu 610072,China)
出处
《人民珠江》
2022年第2期88-93,共6页
Pearl River
基金
中国地质调查局项目(DD20179605)。
关键词
地下水质量
权重
评价模型
主成分分析法
Q值
groundwater quality
weight
evaluation model
principal component analysis
Q value
