干旱区生态环境知识资源中心(Arid): 鄂尔多斯盆地摩林河水化学成分的形成机制

Arid

	鄂尔多斯盆地摩林河水化学成分的形成机制
其他题名	Study on the Formation Mechanism of Chemical Constitution of Stream Water of the Molin River in the Ordos Basin
	钱会 1; 覃兰丽 1; 姬亚东 1; 李西建 1; 杨柄超 2; 赵振宏 2
ISSN	1001-4675
出版年	2007
卷号	24 期号:5 页码:590-597
中文摘要	根据在流域内采集的19个河水及地下水化学分析样品、18个氢氧稳定同位素分析样品,对河水成分沿着流程的变化进行了研究.比较了河水的TDS、主要离子的浓度、水化学类型以及delta~(18)O和deltaD沿流程的变化,使用水溶组分平衡分布模型计算了方解石、白云石和石膏等矿物的饱和指数,使用质量平衡模型计算并分析了河水成分沿流程的变化机理.结果表明:石膏的溶解、方解石的沉淀、离子交换、混合过程以及蒸发作用在河水化学成分的形成过程中均起着重要的作用.
英文摘要	The Molin River is a small continental river in the arid region near Hangjin County of Inner Mongolia,China,it is 81 km in length,its drainage area is 5 220 km~2,and its annual runoff volume is 1.8*10~7 m~3.In this paper,the chemical institution of stream water of the Molin River is lucubrated based on introducing the hydrogeologic conditions and analyzing 19 stream water and groundwater samples 18 oxyhydrogen stable isotopic samples collected in the drainage basin.Moreover,the changes of TDS,concentration of the main ions,hydrochemical properties,delta~(18)O and deltaD of stream water along stream flow are compared,the saturation indexes of calcite,dolomite,gypsum,etc.are calculated with hydrotropic component balance distribution model,and the change mechanism of chemical institution of stream water along stream flow is calculated and analyzed with the mass balance model.The results show that the dissolution of gypsum,precipitation and ion exchange of calcite and mixing and evaporation of stream water play an important role in the formation of chemical institution of stream water;in the positive ions,Na~+ is dominant;in the negative ions,HCO~-_3 is dominant,and then Cl~-and SO~(2-)_4.Stream water is in HCO_3·Cl-Na type in the upper and middle reaches but in HCO_3·SO_4·Cl-Na in the lower reaches of the Molin River.
中文关键词	水化学 ; 沿程变化 ; 摩林河 ; 鄂尔多斯盆地
英文关键词	TDS delta18O deltaD Molin River chemical institution of stream water evolution formation mechanism
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:2922806
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220996
作者单位	1.长安大学,环境科学与工程学院, 西安, 陕西 710054, 中国; 2.西安地质矿产研究所, 西安, 陕西 710054, 中国
推荐引用方式 GB/T 7714	钱会,覃兰丽,姬亚东,等. 鄂尔多斯盆地摩林河水化学成分的形成机制[J],2007,24(5):590-597.
APA	钱会,覃兰丽,姬亚东,李西建,杨柄超,&赵振宏.(2007).鄂尔多斯盆地摩林河水化学成分的形成机制.,24(5),590-597.
MLA	钱会,et al."鄂尔多斯盆地摩林河水化学成分的形成机制".24.5(2007):590-597.