干旱区生态环境知识资源中心(Arid): 巴丹吉林沙漠车日格勒湖水深分布与水温分层特征

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	巴丹吉林沙漠车日格勒湖水深分布与水温分层特征
其他题名	Bathymetric survey and thermal stratification of Lake Cherigele in the Badain Jaran Desert
	李克祖 1; 曹乐 2; 孟令群 2; 刘学全 2; 闫冬鸣 3
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2018
卷号	32 期号:12 页码:137-144
中文摘要	为了研究巴丹吉林沙漠车日格勒的湖底地形结构、温度分层特征及成因,于2016年6月1日对车日格勒5条剖面上66个测点进行水深、水温和电导率测量。结果表明: ( 1)车日格勒整体呈浅碟状,最大水深8.20m,湖底中部存在东西向隆起,将湖盆分为南北两个平坦的小湖盆;近岸水域存在不同规模的钙华陡坎。 ( 2)湖水垂直变化的分层特征明显:混合层由湖面到水下3m,水温、电导率相对均匀;水深3 ~ 4m为相对高温区; 4m以下为温跃层,平均梯度值达3.5℃ /m,湖底水温仅10.5℃,电导率随水深增加而变大,平均梯度值8.264( mS /cm) /m。对比8月9日测量结果,混合层厚度增至6m,水体温度升高5 ~ 6℃。湖泊分层主要受太阳辐射、气温、风力、湖水电导率差异影响,淡水补给作用、湖盆结构次之。两期数据显示车日格勒为半混合湖泊,确定其混合类型仍需对水温、电导率、水位等参数进行常年全剖面观测。
英文摘要	Most lakes at Badain Jaran Desert are now still lack of basal information,especially the survey of water temperature stratification and the discussion about its causes. In this study,field investigation including bathymetric survey and water quality measurements were conducted at 5 sections and 66 stations of lake Cherigele which is one of the largest lakes in the Badain Jaran Desert,in June 1st and 2nd,2016. The results showed that: 1) Isobathic map shows that lake Cherigele looks like a shallow dish and the maximum water depth is 8.2m. This lake is divided into north and south lake basins because there is a uplift from east to west lay on the lakebed. There are some slopes with 1 ~ 2m deep down near the shore at the lakebed,which is considered to be made from tufa. 2) According to the vertical variations of water temperature in June,water temperature of lake Cherigele could be divided into three layers with distinctly various features. The first layer as mixolimnion is from surface to 3m depth in which water temperature and conductivity are relatively uniform. The second layer ranges about 3 ~ 4m is a relatively high temperature area. And the bottommost layer is characterized with the linear decrease with the 3.5℃ /m gradient value. The conductivity value constantly increases with the 8.264 ( mS /cm) / m gradient value. According to the temperature stratification comparison between in June 1st and Aug. 9th,we can find the water temperature of Cherigele rises in 5 ~ 6℃,while the thickness of mixolimnion increasing to 6m. In brief,we conclude that solar radiation and wind are the principal reason resulting in water temperature-layering and changes of the thermocline,and the freshwater inflow and lake basin structure take the second place. More data and information about water temperature,conductivity and water level throughout the year are needed to ensure which type of Cherigele is.
中文关键词	分层 ; 温跃层 ; 电导率 ; 车日格勒 ; 巴丹吉林沙漠
英文关键词	stratification thermocline conductivity lake Cherigele Badain Jaran Desert
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOGRAPHY
WOS研究方向	Geography
CSCD记录号	CSCD:6378131
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237739
作者单位	1.甘肃省地矿局水文地质工程地质勘察院;;甘肃省地下水工程及地热资源重点实验室, ;;甘肃省地下水工程及地热资源重点实验室, 张掖;;张掖, ;; 734000;;734000; 2.中国地质科学院水文地质环境地质研究所, 石家庄, 河北 050061, 中国; 3.甘肃省地矿局水文地质工程地质勘察院, 张掖, 甘肃 734000, 中国
推荐引用方式 GB/T 7714	李克祖,曹乐,孟令群,等. 巴丹吉林沙漠车日格勒湖水深分布与水温分层特征[J],2018,32(12):137-144.
APA	李克祖,曹乐,孟令群,刘学全,&闫冬鸣.(2018).巴丹吉林沙漠车日格勒湖水深分布与水温分层特征.干旱区资源与环境,32(12),137-144.
MLA	李克祖,et al."巴丹吉林沙漠车日格勒湖水深分布与水温分层特征".干旱区资源与环境 32.12(2018):137-144.