|Table of Contents|

Hydrochemical Characteristics and Evolution Laws of Groundwater in Typical Oasis of Arid Areas on the West of Helan Mountain(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2009年第03期
Page:
285-290
Research Field:
水资源与地质工程
Publishing date:

Info

Title:
Hydrochemical Characteristics and Evolution Laws of Groundwater in Typical Oasis of Arid Areas on the West of Helan Mountain
Author(s):
JIANG Ling;  LI Pei-cheng;  GUO Jian-qing
(School of Environmental Sciences and Engineering, Chang'an University, Xi'an 710054, Shaanxi, China)
Keywords:
arid region oasis;  groundwater;  hydrochemical type;  evolution character;  evolution law
PACS:
P641.3
DOI:
-
Abstract:
The paper takes the Yaoba oasis of Alxa area on the west of Helan mountain as the typical study case, and the groundwater samples are analyzed systemically,then the descriptive statistics, the correlation matrices, the ratio coefficient of the main ions and the piper diagram are used to gain the better understanding of the spatial and the temporal variation of the hydrochemistry characteristics and the evolution laws of groundwater. The results show that: ①Hydrochemical spatial variability of unconfined and confined aquifer is almost not affected by seasonal variation, and the interference of external factors to hydrochemical character of unconfined aquifer is more obviously than confined aquifer; ②The following main hydrochemical processes are inferred to control the water quality of the groundwater system: the evaporative condensation, ion-exchange reactions, and mixing of the surface water with high salinity; ③There are high TDS contents and complicated hydrochemical types in unconfined aquifer, whose hydrochemical types evolve from HCO3·SO4·Cl-Na·Mg·Ca to Cl·SO4·HCO3-Mg·Na, Cl·SO4-Na·Mg. The hydrochemical types of confined aquifer are simple, which mainly are HCO3-Na·Mg·Ca with low-mineralization.

References:

[1] 章光新,邓 伟,何 岩,等.中国东北松嫩平原地下水水化学特征与演变规律[J].水科学进展,2006,17(1):20-28.
[2] 陈梦熊.西北干旱区水资源的合理开发利用与荒漠化防治[J].地球科学与环境学报,2005,27(4):1-7.
[3] 苑莲菊,武胜忠.干旱区地下水系统——贺兰山西侧地下水系统[M].北京:地质出版社,1996.
[4] 沈照理,朱婉华,钟佐燊.水文地球化学基础[M].北京:地质出版社,1993.
[5] 万利勤,徐慧珍,殷秀兰,等.济南岩溶地下水化学成分的形成[J].水文地质工程地质,2008,35(3):61-64.
[6] 苏春利,王焰新.大同盆地孔隙地下水化学场的分带规律性研究[J].水文地质工程地质,2008,35(1):83-89.
[7] 赵新锋,陈建耀,唐常源,等.珠江三角洲小流域地下水化学特征及演化规律[J].生态环境,2007,16(6):1620-1626.
[8] 王水献,王云智,董新光.焉耆盆地浅层地下水埋深与TDS时空变异及水化学的演化特征[J].灌溉排水学报,2007,26(5):90-93.
[9] 侯景儒,黄竟先.实用地质统计学[M].北京:地质出版社,1998.
[10] 孙亚乔,钱 会,张 黎,等.基于矩形图的天然水化学分类和水化学规律研究[J].地球科学与环境学报, 2007, 29(1):75-79.
[11] 钱 会,王晓娟,李便琴.地下水系统平衡化学模型的研究现状及发展方向[J].地球科学与环境学报,2005,27(1):59-64.

Memo

Memo:
-
Last Update: 2009-09-20