干旱区生态环境知识资源中心(Arid): 内蒙古察干淖尔盐湖298 ka时段的湖面波动

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	内蒙古察干淖尔盐湖298 ka时段的湖面波动
其他题名	Lake level fluctuation in Qehan Salt Lake during 298 ka, Inner Mongolia
	斯琴毕力格; 春喜; 宋洁; 白雪梅
来源期刊	湖泊科学
ISSN	1003-5427
出版年	2016
卷号	28 期号:4 页码:909-916
中文摘要	以内蒙古锡林郭勒盟苏尼特右旗的察干淖尔盐湖为研究对象,利用OSL(Optically Stimulated Luminescence)测年技术和DEM(Digital Elevation Model)数字高程模型,重建湖面波动历史,探讨湖泊形成与环境变化过程.通过对察干淖尔盐湖周边大量的野外考察,发现湖泊周围存在海拔高程为1020、978和973 m的三级古湖岸阶地,其OSL测年结果分别为29.21.3、18.40.8及8.28.0 ka.通过湖岸阶地高程恢复的上述3个时期的古湖面积分别为3600、500和400 km~2.与现今的干旱盐湖景观迥然不同.
英文摘要	Choosing Qehan Salt Lake in Inner Mongolia and using (Optically Stimulated Luminescence, OSL) dating techniques and digital elevation model (DEM), this research reconstructs the history of lake level fluctuation, and discusses the process of lake form and environment evolution. According to the field work in the area around Qehan Salt Lake and samples of lake sediment, the elevations of 3-level paleolake terraces are 1020 m, 978 m and 973 m. Using OSL dating techniques to detect the age of lake sediment and establish the time series of lake fluctuation, the ages of 3-level paleolake terraces are 29.21.3 ka, 18.40.8 ka and 8.28.0 ka. ArcGIS software was used to track 3-level terraces in the topographic map of 1∶50000 and construct DEM, the scope and level of paleolake in every period. The spatial distribution pattern of the lake evolution has been reconstructed. The lake area was 3600 km~2, 500 km~2 and 400 km~2, respectively, which was very different from today’s arid salt lake landscape.
中文关键词	季风边缘区 ; 湖泊演化 ; OSL测年技术 ; DEM模型 ; 察干淖尔盐湖
英文关键词	Monsoon marginal zone lake evolution OSL dating techniques DEM model Qehan Salt Lake
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:5745841
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234478
作者单位	内蒙古师范大学, 蒙古高原环境与全球变化自治区重点实验室, 呼和浩特, 内蒙古 010022, 中国
推荐引用方式 GB/T 7714	斯琴毕力格,春喜,宋洁,等. 内蒙古察干淖尔盐湖298 ka时段的湖面波动[J],2016,28(4):909-916.
APA	斯琴毕力格,春喜,宋洁,&白雪梅.(2016).内蒙古察干淖尔盐湖298 ka时段的湖面波动.湖泊科学,28(4),909-916.
MLA	斯琴毕力格,et al."内蒙古察干淖尔盐湖298 ka时段的湖面波动".湖泊科学 28.4(2016):909-916.