基于多元统计方法的新疆巴里坤盆地地下水水化学特征及其影响因素分析  

Analysis of hydrochemical characteristics and influencing factors of groundwater in the Balikun Basin of Xinjiang based on multivariate statistical method

作　　者：丁启振 周金龙[1,2,3] 曾妍妍 雷米[1,2,3] 孙英 DING Qizhen;ZHOU Jinlong;ZENG Yanyan;LEI Mi;SUN Ying(College of Hydraulic and Civil Engineering,Xinjiang Agricultural University,Urumqi 830052,China;Xinjiang Hydrology and Water Resources Engineering Research Center,Urumqi 830052,China;Xinjiang Key Laboratory of Hydraulic Engineering Safety and Water Disaster Prevention,Urumqi 830052,China)

机构地区：[1]新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052 [2]新疆水文水资源工程技术研究中心,新疆乌鲁木齐830052 [3]新疆水利工程安全与水灾害防治重点实验室,新疆乌鲁木齐830052

出　　处：《水资源与水工程学报》2021年第5期78-83,91,共7页Journal of Water Resources and Water Engineering

基　　金：中国地质调查局项目“西北地区主要城市地下水污染调查与评价”(1212011220982)。

摘　　要：多元统计方法能同时对多个变量进行分析研究,是一种可用于地下水水化学特征相关分析的有效工具。基于12组水样的9项指标,运用多元统计方法系统分析了新疆巴里坤盆地地下水水化学特征及其影响因素。结果表明:该地区内主要分布低矿化度的HCO_(3)·SO_(4)-Ca·Na型水(占总取样点的33.3%)和HCO_(3)·SO_(4)-Ca型水(占总取样点的25.0%),地下水中各离子的空间变异性为中等以上。地下水水化学特征主要受以Na^(+)、Ca^(2+)、Mg^(2+)、Cl^(-)、SO_(4)^(2-)、总硬度(TH)、溶解性总固体(TDS)为主要荷载变量的蒸发浓缩作用和以HCO_(3)^(-)为主要荷载变量的溶滤作用影响,两种作用的贡献率分别达76.17%和14.87%。研究结果可为当地地下水资源的保护和可持续利用提供科学依据。Multivariate statistical method is an effective tool for the study of hydrochemical characteristics of groundwater,which can be used to analyze multiple variables simultaneously.Based on nine indexes of 12 groundwater samples,the chemical characteristics and influencing factors of groundwater in the Balikun Basin of Xinjiang were systematically analyzed using multivariate statistical method.The results show that HCO_(3)·SO_(4)-Ca·Na water(account for 33.3%of the samples)and HCO_(3)·SO_(4)-Ca water(account for 25.0%of the samples)with low salinity are mainly distributed in the study area,and the spatial variability of various ions in the groundwater is above medium.The chemical characteristics of groundwater are mainly affected by evaporation and concentration of the main load variables of Na^(+),Ca^(2+),Mg^(2+),Cl^(-),SO_(4)^(2-),total hardness(TH)and dissolved total solids(TDS),as well as the leaching of the main load variable HCO_(3)^(-),with the contribution rates of 76.17%and 14.87%,respectively.The results can provide a theoretical support for the protection and sustainable utilization of local groundwater resources.

关 键 词：地下水 水化学特征 多元统计方法 新疆巴里坤盆地 

分 类 号：TV211.1[水利工程—水文学及水资源] P332.7[天文地球—水文科学]