二塘沟流域地下水化学组分来源及空间分布特征  

Chemical composition source and spatial distribution of the groundwater hydrochemistry of Ertanggou Basin

作　　者：吴豪 吴彬[1] 杜明亮[1] 钟瑞森[2] WU Hao;WU Bin;DU Mingliang;ZHONG Ruisen(College of Water Conservancy and Civil Engineering,Xinjiang Agricultural University,Urumqi 830052,China;State Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,CAS,Urumqi 830011,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]中国科学院新疆生态与地理研究所荒漠与绿洲生态国家重点实验室,新疆乌鲁木齐830011

出　　处：《水资源与水工程学报》2018年第5期116-121,共6页Journal of Water Resources and Water Engineering

基　　金：国家自然科学基金项目(41272277);新疆水文学及水资源重点学科基金项目(xjsxszyzdxk20101202)

摘　　要：地下水是二塘沟流域居民生活饮用、农业灌溉的主要水源,对地下水的水化学特征的研究有助于了解地下水水化学环境与可再生能力,以便科学有效地管理和利用地下水资源,保护和改善地下水水质。采用数学统计方法、三线图解法以及Gibbs图分析了二塘沟流域地下水水化学组分的空间分布规律。结果表明:地表水水化学类型是HCO_3^-—Ca^(2+),北盆地浅层地下水由地表水补给,经过硫酸盐矿物溶滤,水化学类型为HCO_3^-+SO42-—Na++Ca^(2+),再经过南盆地平原绿洲区含氯化物矿物溶解及蒸发浓缩作用水化学类型为SO42-+Cl-—Na++Ca^(2+),最终排向艾丁湖附近形成Cl-—Na+型水。北盆地地表水水质较好,而地下水有变差趋势,即在火焰山北部山前有明显上升;南盆地地下水在山前及灌区四周水质较差。In Ertanggou Basin,groundwater is the main water resource of residents'drinking and agriculture irrigation.Study on the hydrochemical characteristics of groundwater can help people understand the underground water chemical environment of renewable ability,scientific and effective management,protection and rational development and utilization of water resources.The spatial distribution pattern of groundwater hydrochemistry in Ertanggou Basin was analyzed using mathematical statistics method,piper diagram method and the Gibbs diagram analysis.The hydrochemical type of surface water is HCO3^-- Ca^2+,The shallow groundwater in the north basin is replenished by surface water,leaching of sulphate minerals.The hydrochemical type is HCO3^-+SO4^2--Na^+ +Ca^2+,and then go through the dissolved of chlorides and evaporative concentration in the oasis of the South basin plain.The chemical type of groundwater is SO4^2--+Cl^--Na^++Ca^2+,the final discharge to Aydingkol Lake and forming the Cl^-- Na^+ type of water.The surface water quality of north basin is better,and the groundwater has a bad trend.There is a clear rise in the front of the Flame Mountain,and the water quality of the South basin is poor in the Piedmont and around the irrigation area.

关 键 词：地下水 水化学特征 空间分布特征 二塘沟流域 

分 类 号：TV213.4[水利工程—水文学及水资源] P641.3[天文地球—地质矿产勘探]