新疆昌吉市平原区地下水化学特征及质量评价  

Groundwater chemical characteristics and water quality evaluation for groundwater in plain area of Changji City,Xinjiang

作　　者：纪媛媛[1,2,3] 周金龙[2,3] 孙英 雷米[2,3] JI Yuanyuan;ZHOU Jinlong;SUN Ying;LEI Mi(Xinjiang Agricultural Professional Technological College,Changji 831100,China;College of Water Conservancy and Civil Engineering,Xinjiang Agricultural University,Urumqi 830052,China;Xinjiang Hydrology and Water Resources Engineering Research Center,Urumqi 830052,China)

机构地区：[1]新疆农业职业技术学院,新疆昌吉831100 [2]新疆农业大学水利与土木工程学院,乌鲁木齐830052 [3]新疆水文水资源工程技术研究中心,乌鲁木齐830052

出　　处：《南水北调与水利科技（中英文）》2021年第3期551-560,共10页South-to-North Water Transfers and Water Science & Technology

基　　金：中国地质调查局项目(12120114056401);新疆农业职业技术学院院级课题(XJNZYKJ201806)。

摘　　要：为探究新疆昌吉市平原区地下水化学特征及质量时空分布规律,采用数理统计、Piper三线图、Gibbs图、离子比值法、F值评分法和质量比对等方法对昌吉市平原区2016年42组及2011年9组地下水取样点检测数据进行分析。结果表明:昌吉市平原区潜水水化学类型主要有HCO_(3)·SO_(4)-Na·Ca型和HCO_(3)·SO_(4)-Na·Ca·Mg型,承压水水化学类型主要有HCO_(3)-Na·Ca型和HCO_(3)·SO_(4)-Na·Ca型;研究区潜水水化学成分主要受蒸发浓缩和岩石风化共同作用的影响,承压水水化学成分主要受岩石风化作用的影响。通过2011年与2016年地下水原位点比对发现,潜水取样点中有3组质量不变、3组质量有所改善、2组质量劣化,承压水取样点1组无变化。影响地下水化学特征和质量时空分布的因素主要是自然因素和人为因素。Changji City is the capital of Changji Hui Autonomous Prefecture,Xinjiang,and the increasingly serious quality problem of groundwater resources seriously restricts the local economic and social development.Based on the detection data of 42 groups of groundwater samples in Changji plain in 2016(including 27 groups of unconfined groundwater samples and 15 groups of confined groundwater samples),the chemical characteristics of groundwater in this area are studied comprehensively by various means and its influencing factors are analyzed.At the same time,the detection data of nine groups of groundwater in-situ samples in 2011(including eight groups of unconfined groundwater samples and one group of confined groundwater sample)were used to reveal the law of spatial and temporal variation of groundwater quality in this area,in order to provide theoretical basis for the utilization and protection of groundwater resources.The mathematical statistics method is used to analyze the chemical composition content characteristics of groundwater Changji City,Piper diagram is used to analyze the chemical types of groundwater,Gibbs figures are used to analyze the influencing factors of chemical characteristics of groundwater,ion ratio method is used to analyze the main sources of chemical composition of groundwater in the current year,F value evaluation method is used to evaluate the groundwater quality category,and quality comparison method is used to analyze the changes of groundwater quality in-situ in 2011 and 2016.The relationship between the average content of cations and anions in unconfined groundwater is Ca^(2+)>Na^(+)>Mg^(2+)>K^(+)and HCO_(3)->SO_(4)2->Cl^(-).The confined groundwater is Na^(+)>Ca^(2+)>Mg^(2+)>K^(+)and Cl^(-)>HCO_(3)->SO_(4)2-.The current year groundwater hydrochemical types were obtained by Piper diagram,with HCO_(3)·SO_(4)-Na·Ca and HCO_(3)·SO_(4)-Na·Ca·Mg types dominating in unconfined groundwater and HCO_(3)-Na·Ca and HCO_(3)·SO_(4)-Na·Ca types dominating in confined groundwater.The chemical ch

关 键 词：昌吉市 平原区 地下水化学特征 质量评价 时空分布 

分 类 号：TV211[水利工程—水文学及水资源]