气候变化领域集成服务门户(CCPortal): Late Holocene dune mobilization in the Horqin dunefield of northern China

CCPortal

DOI	10.1016/j.jseaes.2017.02.018
	Late Holocene dune mobilization in the Horqin dunefield of northern China
	Yang, LinHai; Wang, Tao; Long, Hao; He, Zhong
发表日期	2017
ISSN	1367-9120
EISSN	1878-5786
卷号	138
英文摘要	The late Holocene environmental change and its relationship with climate and human activities in the Horqin dunefield of northern China are poorly understood. In the current study, we presented a new reconstruction of late Holocene dune mobilization in the Horqin dunefield based on 68 quartz OSL ages from 25 dune sections and interpretations of historical documents. These sections were selected from a variety of different geomorphological units across the studied region. The results show that at least four phases of dune mobilization were distinguished during the last 2000 years in Horqin dunefield, corresponding to similar to 400-700 CE, similar to 1200 CE, similar to 1800 CE and after 1900 CE, respectively. By comparison with other well-dated paleoclimate records and analysis on human activity records, we infer that the cold-arid climate caused the dune mobilization around 400-700 CE; dune mobilization around 1200 CE can be attributed to the combinative impacts of cold climate and extensive human activities; increasing human activities play a dominate role in the latest two phases of dune mobilization at around 1800 CE and after 1900 CE, even though the climate warming and drying in 20th century may also contribute to the last phase of dune mobilization. (C) 2017 Elsevier Ltd. All rights reserved.
关键词	OSL dating Dune mobilization Horqin dunefield Climate change Human impact
学科领域	Geology
语种	英语
WOS研究方向	Geosciences, Multidisciplinary
来源期刊	JOURNAL OF ASIAN EARTH SCIENCES
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111902
作者单位	Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Yang, LinHai,Wang, Tao,Long, Hao,et al. Late Holocene dune mobilization in the Horqin dunefield of northern China[J]. 中国科学院西北生态环境资源研究院,2017,138.
APA	Yang, LinHai,Wang, Tao,Long, Hao,&He, Zhong.(2017).Late Holocene dune mobilization in the Horqin dunefield of northern China.JOURNAL OF ASIAN EARTH SCIENCES,138.
MLA	Yang, LinHai,et al."Late Holocene dune mobilization in the Horqin dunefield of northern China".JOURNAL OF ASIAN EARTH SCIENCES 138(2017).