干旱区生态环境知识资源中心(Arid): A Persistently Increasing Precipitation Trend Through the Holocene in Northwest China Recorded by Black Carbon delta C-13 From Sayram Lake

Arid

DOI	10.3389/feart.2020.00228
	A Persistently Increasing Precipitation Trend Through the Holocene in Northwest China Recorded by Black Carbon delta C-13 From Sayram Lake
	Jiang, Qingfeng; Zheng, Jianan; Yang, Yufeng; Zhao, Wenwei; Ning, Dongliang
通讯作者	Jiang, QF
来源期刊	FRONTIERS IN EARTH SCIENCE
EISSN	2296-6463
出版年	2020
卷号	8
英文摘要	Precipitation is an important requirement for the stable and sustainable development of ecosystems and communities in arid areas, which are vulnerable to the influences of climate change. The changes in precipitation throughout the Holocene, as well as its long-term characteristics in arid northwest China, are not well understood, and records to reconstruct the precipitation trends are needed. Therefore, this study established a well-dated black carbon (BC) stable isotope-inferred (delta C-13) precipitation record based on a sediment core from Sayram Lake, Tianshan Mountains (Xinjiang province, northwest China). The record spans the last 12880 cal. yr BP. Variations in BC delta C-13 showed that between similar to 12280 and 9260 cal. yr BP, regional precipitation gradually decreased, but then increased continually until the present, with millennial to centennial scale fluctuations. During the Holocene, a distinct period of low precipitation was observed between 9800 and 8800 cal. yr BP, and two episodes of high precipitation were observed between 8000 and 7600, and 5800 and 2500 cal. yr BP. The maximum precipitation occurred at similar to 3800 cal. yr BP. Generally, the persistently increasing precipitation trend is consistent with other records from arid northwest China and adjacent areas. The trend was possibly controlled by Northern Hemisphere solar insolation and associated substantial ice sheet remnants, due to the influence of the North Atlantic Ocean sea surface temperatures and intensities of the Westerlies, which regulate the transport of water vapor to Xinjiang. The results provide a better understanding of the mechanisms driving the evolution of precipitation through the Holocene.
英文关键词	black carbon isotope northwest China precipitation Holocene Sayram Lake
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	SCI-E
WOS记录号	WOS:000556802400001
WOS关键词	ARID CENTRAL-ASIA ; SOUTHERN ALTAI MOUNTAINS ; INDIAN-SUMMER MONSOON ; MOISTURE EVOLUTION ; NORTHERN XINJIANG ; PYROGENIC CARBON ; CLIMATE-CHANGE ; ISOTOPE FRACTIONATION ; DROUGHT VARIABILITY ; VEGETATION CHANGES
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325472
作者单位	[Jiang, Qingfeng; Zheng, Jianan; Yang, Yufeng; Zhao, Wenwei; Ning, Dongliang] Nantong Univ, Sch Geog Sci, Nantong, Peoples R China; [Ning, Dongliang] Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Qingfeng,Zheng, Jianan,Yang, Yufeng,et al. A Persistently Increasing Precipitation Trend Through the Holocene in Northwest China Recorded by Black Carbon delta C-13 From Sayram Lake[J],2020,8.
APA	Jiang, Qingfeng,Zheng, Jianan,Yang, Yufeng,Zhao, Wenwei,&Ning, Dongliang.(2020).A Persistently Increasing Precipitation Trend Through the Holocene in Northwest China Recorded by Black Carbon delta C-13 From Sayram Lake.FRONTIERS IN EARTH SCIENCE,8.
MLA	Jiang, Qingfeng,et al."A Persistently Increasing Precipitation Trend Through the Holocene in Northwest China Recorded by Black Carbon delta C-13 From Sayram Lake".FRONTIERS IN EARTH SCIENCE 8(2020).