干旱区生态环境知识资源中心(Arid): 额济纳旗浅层地下水环境分析

Arid

	额济纳旗浅层地下水环境分析
其他题名	Hydrogeochemistry of Shallow Groundwater in Ejin Banner, Inner Mogolia
	苏永红 1; 冯起1 ; 朱高峰 2; 吕世华1
来源期刊	冰川冻土
ISSN	1000-0240
出版年	2005
卷号	27 期号:2 页码:297-303
中文摘要	通过2003年野外采样和室内分析, 研究了额济纳旗浅层地下水的水环境状况和成因. 该区浅层地下水矿化度普遍比较高, 大多数地区的矿化度在800～3 000 mg·L~(-1)之间变化; 整个区域矿化度变化幅度比较大(532～12 267.9 mg·L~(-1)), 水化学类型主要为HCO_3·SO_4~-Na、 Cl·SO_4~-Na·Ca、 HCO_3·Cl~-Na·Ca和SO_4·Cl~-Na型. 浅层地下水矿化度的高低与距离补给源的远近密切相关, 在河岸附近的矿化度变化幅度较小; 在远离河道地区, 随离岸距离的增减而升降, 体现了矿化度的高低主要依赖于补给水源. 地下水化学成分的形成主要有溶滤作用、蒸发和浓缩作用及混合作用.
英文摘要	Water resources, especially those in the arid regions, concern all of us more and more. Ejin Banner lies in the lower reaches of the Heihe Riv-er, where the mineralization in the shallow groundwater is high. Water was sampled in the banner in May 2003 to analyze the chemical fea-tures of shallow groundwater. The analysis was carried out in Lab of Hydrology and Soil in Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Science. The mineralization of most samples is high, ran-ging from 800 mg ? L~(-1) to 3000 mg ? L~(-1). The hydrochemistry types of the samples are mainly HCO_3 ? SO~4-Na, Cl ? SO~4-Na ? Ca, HCO_3 ? Cl--Na ? Ca and SO_4 ? Cl-Na. At the same time, two sections (a-a’ and b-b’) were elected, from which, it is revealed that a) there is an positive re-lation between mineralization and distance to the water sources, with a lower mineralization about riverway and a higher mineralization far from river-way; b) chemical types of shallow groundwater in Ejin Banner accord with solute movement regula-tion in groundwater in the arid and semi -arid are-as, depending on leaching effect, evaporation process, concentration process and mixture process. At the same time human activities have had a bad effect on the hydrochemical environment of shallow groundwater in the banner; c) the chan-ges of mineralization and content of ions accord with the distance from supplying regions, depen-ding on water quantity in the upper reaches.
中文关键词	地下水环境 ; 额济纳旗 ; 矿化度
英文关键词	groundwater environment Ejin Banner mineralization
语种	中文
国家	中国
收录类别	CSCD
WOS类目	MINERALOGY
WOS研究方向	Mineralogy
CSCD记录号	CSCD:1917098
来源机构	中国科学院西北生态环境资源研究院 ; 兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/205920
作者单位	1.中国科学院,寒区旱区环境与工程研究所, 兰州, 甘肃 730000, 中国; 2.兰州大学,资源环境学院, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	苏永红,冯起,朱高峰,等. 额济纳旗浅层地下水环境分析[J]. 中国科学院西北生态环境资源研究院, 兰州大学,2005,27(2):297-303.
APA	苏永红,冯起,朱高峰,&吕世华.(2005).额济纳旗浅层地下水环境分析.冰川冻土,27(2),297-303.
MLA	苏永红,et al."额济纳旗浅层地下水环境分析".冰川冻土 27.2(2005):297-303.