干旱区生态环境知识资源中心(Arid): Loess accumulation in Harbin with implications for late Quaternary aridification in the Songnen Plain, Northeast China

Arid

DOI	10.1016/j.palaeo.2021.110365
	Loess accumulation in Harbin with implications for late Quaternary aridification in the Songnen Plain, Northeast China
	Wu, Peng; Xie, Yuanyun; Chi, Yunping; Kang, Chunguo; Sun, Lei; Wei, Zhenyu; Zhang, Man; Zhang, Yuexin
通讯作者	Xie, YY ; Chi, YP (corresponding author), Harbin Normal Univ, Coll Geog Sci, Harbin 150025, Peoples R China. ; Xie, YY ; Chi, YP (corresponding author), Harbin Normal Univ, Heilongjiang Prov Key Lab Geog Environm Monitorin, Harbin 150025, Peoples R China.
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
EISSN	1872-616X
出版年	2021
卷号	570
英文摘要	The Harbin loess in Northeast China, located in the easternmost part of the Eurasian loess belt, has great potential to reconstruct the aridity history of the Songnen Plain and to reveal its dynamic process. However, the relationship between coupled tectonic-climate-drainage evolution and the aridification in the Songnen Plain is currently poorly understood. In this study, we present a high-resolution magnetic susceptibility, grain-size, trace element, Sr-Nd isotope, total organic carbon (TOC), and organic carbon isotope composition (delta C-13) record retrieved from the Harbin loess-paleosol sequences to reveal the aridification history in the Songnen Plain. These results reveal a long-term drying trend in the Songnen Plain since 0.46 Ma, indicating the birth of the Songnen Sandy Land at that time. Superimposed on the major aridification trend, two significant abrupt drying events were found at similar to 300 ka and similar to 380 ka. However, the climate in the Songnen Plain became wetter and warmer under the background of the long-term drought since 180 ka. The global ice/temperature changes, regional tectonics (i.e., uplift of the Songliao divide) and drainage change (i.e., river pattern shift in the Songnen Plain from endorheic to exorheic drainage, and termination of the Songnen paleolake) were collectively responsible for the aridification in the Songnen Plain. This study has further improved knowledge of the process of the aridification in Northeast China, which is of great significance to control land desertification and ecological imbalance.
英文关键词	Songnen Plain Aridification Harbin loess Songnen Sandy Land Songliao divide
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000639124500015
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS研究方向	Physical Geography ; Geology ; Paleontology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351276
作者单位	[Wu, Peng; Xie, Yuanyun; Chi, Yunping; Sun, Lei; Wei, Zhenyu; Zhang, Man; Zhang, Yuexin] Harbin Normal Univ, Coll Geog Sci, Harbin 150025, Peoples R China; [Xie, Yuanyun; Chi, Yunping] Harbin Normal Univ, Heilongjiang Prov Key Lab Geog Environm Monitorin, Harbin 150025, Peoples R China; [Kang, Chunguo] Harbin Inst, Geog Dept, Harbin 150086, Peoples R China
推荐引用方式 GB/T 7714	Wu, Peng,Xie, Yuanyun,Chi, Yunping,et al. Loess accumulation in Harbin with implications for late Quaternary aridification in the Songnen Plain, Northeast China[J],2021,570.
APA	Wu, Peng.,Xie, Yuanyun.,Chi, Yunping.,Kang, Chunguo.,Sun, Lei.,...&Zhang, Yuexin.(2021).Loess accumulation in Harbin with implications for late Quaternary aridification in the Songnen Plain, Northeast China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,570.
MLA	Wu, Peng,et al."Loess accumulation in Harbin with implications for late Quaternary aridification in the Songnen Plain, Northeast China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 570(2021).