Application of Multiple Approaches to Investigate the Hydrochemistry Evolution of Groundwater in an Arid Region: Nomhon, Northwestern China
Application of Multiple Approaches to Investigate the Hydrochemistry Evolution of Groundwater in an Arid Region: Nomhon, Northwestern China
复制标题
应用多种方法研究干旱地区地下水水化学演化：中国西北诺姆洪
DOI：
10.3390/w10111667
复制
发表时间：
2018-11
期刊：
影响因子：
3.4
通讯作者：
Zhou Pengpeng
中科院分区：
文献类型：
--
作者：
Yang Nuan;Wang Guangcai;Shi Zheming;Zhao Dan;Jiang Wanjun;Guo Liang;Liao Fu;Zhou Pengpeng
地下水是干旱、半干旱地区人类生存和经济发展的重要水资源。了解这些地区地下水循环和水化学演化规律，对地下水资源的可持续管理和利用至关重要。为此，采用水化学（常量元素、微量元素）和稳定同位素（δD和δ 18 O）方法，对柴达木盆地诺姆洪地区地表水和地下水的水化学特征进行了研究。通过稳定同位素和离子比值分析，确定了补给源、水化学特征和主要水文地球化学过程。同时，应用逆地球化学模拟方法定量研究了水文地球化学过程中的物质迁移。结果表明，研究区地下水主要来源于山区大气降水补给，盆地中心地下水可能来源于寒冷潮湿环境下的古水。沿着地下水流路，地下水矿化度由淡水逐渐增加到咸水（462.50 ~ 19604.40 mg/L），水化学类型由Cl·HCO 3-Na·Mg·Ca型逐渐变为Cl-Na型。地下水化学成分和质量平衡模拟结果表明，从冲积扇到湖相平原，主要水文地球化学过程从岩盐和钠长石的溶解和白云石和高岭石的沉淀转变为岩盐和石膏的溶解，方解石的沉淀，氧化还原（SO 42 −还原）和阳离子交换。该研究对该地区及其他类似地区的水资源管理具有一定的参考价值。
Groundwater is a critical water resource for human survival and economic development in arid and semi-arid areas. It is crucial to understand the groundwater circulation and hydrochemical evolution for sustainable management and utilization of groundwater resources in those areas. To this end, an investigation of the hydrochemical characteristics of surface water and groundwater was conducted in Nomhon, an arid area located in the Qaidam Basin, northwest China, by using hydrochemical (major and trace elements) and stable isotopes (δD and δ18O) approaches. Stable isotopes and ion ratios were analyzed to determine the recharge sources, hydrochemistry characteristics, and major hydrogeochemical processes. Meanwhile, inverse geochemistry modeling was applied to quantitatively determine the mass transfer of hydrogeochemical processes. The results showed that groundwater in the study area is mainly recharged by atmospheric precipitation in mountainous areas, and the groundwater in the center of basin might originate from ancient water in cold and humid environments. Along the groundwater flow path, the TDS of groundwater increased gradually from fresh to salty (ranging from 462.50 to 19,604.40 mg/L), and the hydrochemical type changed from Cl·HCO3–Na·Mg·Ca to Cl–Na. Groundwater chemical composition and mass balance modeling results indicated that from alluvial fan to lacustrine plain, the main hydrogeochemical processes changed from the dissolution of halite and albite and the precipitation of dolomite and kaolinite to the dissolution of halite and gypsum, precipitation of calcite, redox (SO42− reduction), and cation exchange. This study would be helpful for water resources management in this area and other similar areas.
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DOI：
10.3133/tm6a26
发表时间：
2008
期刊：
Techniques and Methods
影响因子：
--
作者：
D. L. Parkhurst;S. Charlton
通讯作者：
D. L. Parkhurst;S. Charlton
DOI：
10.1016/j.aqpro.2015.02.124
发表时间：
2015
期刊：
Aquatic Procedia
影响因子：
--
作者：
C. Suma;K. Srinivasamoorthy;K. Saravanan;A. Faizalkhan;R. Prakash;S. Gopinath
通讯作者：
C. Suma;K. Srinivasamoorthy;K. Saravanan;A. Faizalkhan;R. Prakash;S. Gopinath
影响因子：
2.8
作者：
A. Herczeg;F. Leaney
通讯作者：
A. Herczeg;F. Leaney
影响因子：
2.8
作者：
M. A. Ahmed;S. A. Abdel Samie;H. Badawy
通讯作者：
M. A. Ahmed;S. A. Abdel Samie;H. Badawy
影响因子：
5.4
作者：
L. Plummer;J. Busby;R. W. Lee;B. Hanshaw
通讯作者：
L. Plummer;J. Busby;R. W. Lee;B. Hanshaw