干旱区生态环境知识资源中心(Arid): 用同位素方法研究额济纳盆地承压含水层地下水的补给

Arid

	用同位素方法研究额济纳盆地承压含水层地下水的补给
其他题名	Study of Groundwater Supply of the Confined Aquifers in the Ejin Basin Based on Isotopic Methods
	陈建生 1; 汪集旸 2; 赵霞 1; 盛雪芬 1; 顾慰祖 1; 陈亮 1; 苏治国 1
来源期刊	地质论评
ISSN	0371-5736
出版年	2004
卷号	50 期号:6 页码:649-658
中文摘要	本文通过环境同位素、温度、电导率和人工示踪等方法研究了黑河下游古日乃和额济纳盆地深部承压水的补给源，初步揭示了额济纳盆地承压水来自于祁连山的降水，是部分祁连山西端雪水直接渗入山前的深大断裂，在玉门宽滩山一带注入与之相交的阿尔金断裂，然后继续向东补给至巴丹吉林沙漠，并顺着古日乃断层补给到额济纳盆地。通过蒸发量计算得到的补给量为5*10^8m^3／a。黑河流域承压水中的T(氚)为17．8～0．1 TU，地下水的年龄与取样孔的位置有关，靠近强渗漏带附近的地下水的年龄只有20～30a。古日乃、拐子湖的湖泊、泉、沼泽等消失的主要原因是由于50a来温度升高、蒸发量增加和下游抽水量增大的原因。该项研究对于重新认识额济纳盆地、古日乃、巴丹吉林沙漠的地下水补给与黑河下游水资源调度、开发与利用具有十分重大的意义。
英文摘要	This paper studies the deep confined water replenishment sources in the lower reaches of the Heihe River in the Gurinai and Ejin Basin area by using environmental isotope, temperature, electric conductivity, artificial tracer method etc > and reveals that the confined groundwater in the Ejin Basin came from precipitation over the Qilian Mountains. We found that the snow water from the Qilian Mountains flows into the Altyn fault through the large deep fault and lake groups were formed in the Badain Jaran Desert due to the rupture of the surface. There is a great fault around the Muji Lake and the lake groups, through which groundwater in the Altyn fault can be directly supplied to the Gurinai and Ejin areas to form confined aquifers. The groundwater was supplied from deep to shallow aquifers with a supply amount of 6 X 108 m3/a. The tritium from the confined groundwater of the Heihe River catchment is between 17. 8 and 0. 1 TU. The age of the groundwater is related to the distance between the water sampling position and the confined aquifer. At the center of the leakage aquifer the age is only between 20 and 30 a, but some groundwater is far from the leaky conformation and the age is thousands of years. The reason for the disappearance of lakes, springs, marshes or rivers in the Gurinai and Jinsutuhaizi area is not related to the discontinuity of the Heihe River, but is the increasing temperature, evaporation and downstream pumping in the past 50 years. The discovery of the large deep fault in the Qilian Mountains and the great transmissibility of the Altyn fault under the Ejin Basin, Gurinai, Badain Jaran Desert is very important for the management, development and utilization of the water resources of the Heihe River.
中文关键词	额济纳盆地 ; 补给 ; 承压含水层 ; 同位素 ; 地下水 ; 阿尔金断裂 ; 巴丹吉林沙漠 ; 祁连山 ; 下游 ; 雪水
英文关键词	hydrogen and oxygen isotope Ejin Basin calc-sinter Altyn fault Qilian Mountains fault
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:1800940
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204925
作者单位	1.河海大学, 南京, 江苏 210098, 中国; 2.中国科学院地质与地球物理研究所, 北京 100029, 中国
推荐引用方式 GB/T 7714	陈建生,汪集旸,赵霞,等. 用同位素方法研究额济纳盆地承压含水层地下水的补给[J],2004,50(6):649-658.
APA	陈建生.,汪集旸.,赵霞.,盛雪芬.,顾慰祖.,...&苏治国.(2004).用同位素方法研究额济纳盆地承压含水层地下水的补给.地质论评,50(6),649-658.
MLA	陈建生,et al."用同位素方法研究额济纳盆地承压含水层地下水的补给".地质论评 50.6(2004):649-658.