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	巴丹吉林沙漠盐湖跃层对地下淡水排泄的指示作用
其他题名	Clines in salt lakes in the Badain Jaran Desert and their significances in indicating fresh groundwater discharge
	陈添斐 1; 王旭升 2; 胡晓农 1; 卢会婷 2; 巩艳萍 2
来源期刊	湖泊科学
ISSN	1003-5427
出版年	2015
卷号	27 期号:1 页码:183-189
中文摘要	位于阿拉善高原的巴丹吉林沙漠分布有大量盐湖.为揭示盐湖分层特征以及地下水对盐湖水体的影响,选取沙漠腹地的第二大盐湖--苏木巴润吉林,对9月份湖水的温度和电导率剖面进行了观测.结果表明,尽管所测盐湖宽深比大于90,还是存在温跃层.温跃层的矿化度(TDS)为60~160 g/L,靠近湖底的水体存在TDS低值异常区,形成化跃层,推测为地下淡水集中排泄所致.这种湖底泉在其它较浅的盐湖水体中也存在,说明深、浅层地下水对盐湖水分及盐分都有贡献.温跃层水温随深度的变化近似符合静止水体的热传导规律,并没有受到地下水排泄热量的显著影响.研究区盐湖跃层的季节性变化还有待进一步研究.
英文摘要	A number of salt lakes exist in the Badain Jaran Desert that located in the Alxa Plateau, China. To reveal the stratification characteristics of salt lake water and the impacts of groundwater to the lakes, a survey of the depth-dependent temperature and electric conductivity in September was carried out in the second largest salt lake: the Sumu Barun Jaran. Thermocline is observed even though the lake has a big wide/deep ratio that is higher than 90. The salinity(TDS) varies from 60 to 160 g/L, exhibits a relatively strong spatial variation. Abnormally low TDS zones exist near the lake bottom, forming chemocline in the themocline, which is considered to be influenced by concentrated discharge of fresh groundwater. This type of sub-lake springs have also been observed beneath shallow water bodies in other salt lakes, showing that both shallow and deep groundwater contribute water and salts into the lakes. Variation of temperature versus depth in the thermocline approximately satisfies the heat transfer in a static water body, is not significantly influenced by heat transfer from groundwater discharge. Further investigations are required for the seasonal variation patterns.
中文关键词	温度 ; 矿化度 ; 地下水 ; 巴丹吉林沙漠 ; 苏木巴润吉林
英文关键词	Temperature salinity groundwater Badain Jaran Desert Sumu Barun Jaran
语种	中文
国家	中国
收录类别	CSCD
WOS类目	MULTIDISCIPLINARY SCIENCES
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:5376675
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232894
作者单位	1.中国地质大学(北京), 地下水循环与环境演化教育部重点实验室, 北京 100083, 中国; 2.中国地质大学(北京)水资源与环境学院, 北京 100083, 中国
推荐引用方式 GB/T 7714	陈添斐,王旭升,胡晓农,等. 巴丹吉林沙漠盐湖跃层对地下淡水排泄的指示作用[J],2015,27(1):183-189.
APA	陈添斐,王旭升,胡晓农,卢会婷,&巩艳萍.(2015).巴丹吉林沙漠盐湖跃层对地下淡水排泄的指示作用.湖泊科学,27(1),183-189.
MLA	陈添斐,et al."巴丹吉林沙漠盐湖跃层对地下淡水排泄的指示作用".湖泊科学 27.1(2015):183-189.