干旱区生态环境知识资源中心(Arid): A 1556 year-long early summer moisture reconstruction for the Hexi Corridor, Northwestern China

Arid

	A 1556 year-long early summer moisture reconstruction for the Hexi Corridor, Northwestern China
	Yang Bao; Wang Jianglin; Liu Jingjing
来源期刊	Science China. Earth Sciences
ISSN	1674-7313
出版年	2019
卷号	62 期号:6 页码:953-963
英文摘要	We report a 1556 year-long tree-ring width chronology for the Hexi Corridor, in the arid Northwestern China, established by applying the signal-free regional curve standardization method to 416 juniper ring-width series. We found that drought in early summer (May-June) is the primary controlling factor for tree growth in this area. We then developed an early summer moisture (i.e., scPDSI) reconstruction from 455 CE to present. Our reconstruction captures multi-centennial scale moisture variations, showing two long-term dry periods during 800-950 CE and 1000-1200 CE, and two long-term wet periods during 1200-1450 CE and 1510-1620 CE. We found strong similarities between hydroclimatic changes in the Hexi Corridor and Qaidam Basin from interannual to centennial timescales; however, at multi-centennial (>300 years) timescales, hydroclimatic variations in the two regions showed significant regional differences. The Hexi Corridor witnessed a generally dry Medieval Climate Anomaly (MCA, here 800-1200 CE) and the drying 20th century, whereas the Qaidam Basin experienced highprecipitation periods during the MCA and 20th century. The different correlation pattern with Northern Hemisphere temperature suggest that the Qaidam Basin will receive more precipitation under global warming, whereas the Hexi Corridor will become dryer in the future.
英文关键词	Hexi Corridor Tree-ring index Early-summer Hydroclimate reconstruction
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Mechanics
CSCD记录号	CSCD:6516802
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336125
作者单位	Yang Bao, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Key Laboratory of Desert and Desertification, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Wang Jianglin, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Key Laboratory of Desert and Desertification, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Liu Jingjing, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Key Laboratory of Desert and Desertification, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.
推荐引用方式 GB/T 7714	Yang Bao,Wang Jianglin,Liu Jingjing. A 1556 year-long early summer moisture reconstruction for the Hexi Corridor, Northwestern China[J],2019,62(6):953-963.
APA	Yang Bao,Wang Jianglin,&Liu Jingjing.(2019).A 1556 year-long early summer moisture reconstruction for the Hexi Corridor, Northwestern China.Science China. Earth Sciences,62(6),953-963.
MLA	Yang Bao,et al."A 1556 year-long early summer moisture reconstruction for the Hexi Corridor, Northwestern China".Science China. Earth Sciences 62.6(2019):953-963.