干旱区生态环境知识资源中心(Arid): 黑河流域水化学空间分异特征分析

Arid

	黑河流域水化学空间分异特征分析
其他题名	Analysis on the Spatial Differentiation of Hydrochemical Characteristics in the Heihe River Watershed
	温小虎 1; 仵彦卿 1; 常娟 2; 苏建平 1; 张应华 1; 刘发民 1
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2004
卷号	21 期号:1 页码:1-6
中文摘要	选取我国西北干旱区第2大内陆河--黑河流域,对全流域地表水和地下水的水化学类型和水化学特征进行了系统分析.结果表明,黑河流域地表水中TDS(阴离子总量)和主要离子含量沿流程均有不同程度的增加,但增幅不大.而地下水TDS从莺落峡出山后呈直线上升,下游TDS均大于1 000 mg/L,主要离子含量增加明显,其变化特征与TD-;下游盆地主要为Cl--SO42-.
英文摘要	Located in the central part of the Hexi Corridor (37°45’ ~42°40’N, 97°42’ ~ 102°04’E), the Heihe River watershed is the second largest inland river watershed in the arid area of northwest China. This paper analyzes systematically the hydrochemical types and the hydrochemical characteristics of surface water and groundwater in the different aquifers in the Heihe River watershed. The results show that the content of TDS and the main ions in surface water increases in varying degrees from the upper reaches to the lower reaches, bul the increase amplitude is not so high; the content of TDS in groundwater, however, increases sharply downstream from the debouchure, it is higher than 1 000 mg/L in the lower reaches, the content of the main ions also increases obviously, and its change characteristics are basically the same with that of TDS. There are the zonal characteristics of the hydrochemical compositions and types from the upper reaches to the lower reaches. From the mountainous regions in the upper reaches to the middle and lower reaches, the hydrochemical types are in an order of HCO_3~-, SO_4~(2-) -HCO_3~- and Cl~-. Groundwater in the mountainous regions and the perimontane alluvial - diluvial fans is in HCO_3~- type with a low mineralization, the mineralization of groundwater in the basins in the middle reaches increases, the hydrochemical type is HCO_3~- or HCO_3~- - SO_4~(2-). The mineralization of groundwater in the basins in the lower reaches increases further; the hydrochemical type is Cl~- - SO_4~(2-) or Cl~- . The mineralization of groundwater decreases from the shallow aquifer to the deep aquifer, the change of hydrochemical types is not so obvious, that is the types of HCO_3~- and HCO_3~- - SO_4~(2-) are dominant in the middle reaches, and the type of Cl~ - SO42~ is dominant in the lower reaches.
中文关键词	水化学类型 ; 离子含量 ; 空间特征 ; 黑河
英文关键词	hydrochemical type ion content spatial characteristic Heihe River
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:1500039
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/2XILL650/205044
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	温小虎,仵彦卿,常娟,等. 黑河流域水化学空间分异特征分析[J]. 中国科学院西北生态环境资源研究院, 兰州大学,2004,21(1):1-6.
APA	温小虎,仵彦卿,常娟,苏建平,张应华,&刘发民.(2004).黑河流域水化学空间分异特征分析.干旱区研究,21(1),1-6.
MLA	温小虎,et al."黑河流域水化学空间分异特征分析".干旱区研究 21.1(2004):1-6.