气候变化领域集成服务门户(CCPortal): Changes in the hydrodynamic intensity of Bosten Lake and its impact on early human settlement in the northeastern Tarim Basin, Arid Central Asia

CCPortal

DOI	10.1016/j.palaeo.2021.110499
	Changes in the hydrodynamic intensity of Bosten Lake and its impact on early human settlement in the northeastern Tarim Basin, Arid Central Asia
	Xie, Haichao; Liang, Jie; Vachula, Richard S.; Russell, James M.; Chen, Shengqian; Guo, Mengjing; Wang, Xin; Huang, Xiaozhong; Chen, Fahu
通讯作者	Huang, XZ (通讯作者)
发表日期	2021
ISSN	0031-0182
EISSN	1872-616X
卷号	576
英文摘要	The climate of arid central Asia (ACA) is extremely dry and early human settlement in the region were dependent upon an unstable water supply. Thus, knowledge of the hydrological fluctuation history is essential for understanding the relationship between humans and the environment in the region. Here we present a record of Holocene lake hydrodynamic intensity based on the grain size of suspended lacustrine silt isolated from the sediments of Bosten Lake, which feeds a river flowing to the northeastern Tarim Basin. The results show that lake hydrodynamic intensity was very weak during the early Holocene (12.0-8.2 ka); and then increased with two distinct centennial-millennial-scale intervals of weak intensity during 4.7-3.7 ka and 1.2-0.5 ka. Notably, increases in lake hydrodynamic intensity occurred 2.2 kyr prior to an increase in local precipitation. We speculate that this was a consequence of relatively high early summer temperatures during 8.2-6.0 ka that resulted in an increased water supply from melting snow and ice in mountainous areas of the catchment. Thus, we conclude that the changes of the Holocene hydrodynamic intensity of Bosten Lake were mainly controlled by temperature or precipitation at different times. The variations in the hydrodynamic intensity of Bosten Lake also influenced water availability for the human population that occupied the downstream area of the northeastern Tarim Basin. A drastic decrease in hydrodynamic intensity of Bosten Lake occurred around 400 and 700 CE likely has caused the emigration of the inhabitants and cultural collapse of Loulan Kingdom.
关键词	GRAIN-SIZE DISTRIBUTION TROPICAL NORTHERN-HEMISPHERE HOLOCENE MOISTURE EVOLUTION CENOZOIC AEOLIAN SEQUENCES CLIMATE-CHANGE EAST-ASIA POLYMODAL SEDIMENTS LATE PLEISTOCENE HUMAN OCCUPATION TIBETAN PLATEAU
英文关键词	Grain-size partitioning; Climate change; Lacustrine sediments; Silk Road; Loulan culture
语种	英语
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000668458200003
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260429
推荐引用方式 GB/T 7714	Xie, Haichao,Liang, Jie,Vachula, Richard S.,et al. Changes in the hydrodynamic intensity of Bosten Lake and its impact on early human settlement in the northeastern Tarim Basin, Arid Central Asia[J]. 中国科学院青藏高原研究所,2021,576.
APA	Xie, Haichao.,Liang, Jie.,Vachula, Richard S..,Russell, James M..,Chen, Shengqian.,...&Chen, Fahu.(2021).Changes in the hydrodynamic intensity of Bosten Lake and its impact on early human settlement in the northeastern Tarim Basin, Arid Central Asia.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,576.
MLA	Xie, Haichao,et al."Changes in the hydrodynamic intensity of Bosten Lake and its impact on early human settlement in the northeastern Tarim Basin, Arid Central Asia".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 576(2021).