气候变化领域集成服务门户(CCPortal): Seasonal Palmer drought severity index reconstruction using tree-ring widths from multiple sites over the central-western Da Hinggan Mountains; China since 1825 AD

CCPortal

DOI	10.1007/s00382-019-04733-0
	Seasonal Palmer drought severity index reconstruction using tree-ring widths from multiple sites over the central-western Da Hinggan Mountains; China since 1825 AD
	Liu R.; Liu Y.; Li Q.; Song H.; Li X.; Sun C.; Cai Q.; Song Y.
发表日期	2019
ISSN	0930-7575
起始页码	3661
结束页码	3674
卷号	53 期号:2020-05-06
英文摘要	Many evidences indicate that the drought in Northern China has progressively intensified, threatening people’s lives and properties. Drought has become one of the most severe environmental problems in Northern China, and thus has serious impacts on the regional social and economic development. The present study investigated the seasonal Palmer drought severity index (PDSI) over the central-western Da Hinggan Mountains (CW-DHM), northeastern China. 283 cores of Mongolian pine trees from 6 locations were used to generate a regional ring-width chronology. The chronology in CW-DHM was significantly correlated with the May–July PDSI, with an explained variance of 49% (r = 0.700, 1951–2013, p < 0.0001). The regional May–July PDSI (PDSI5−7) from the CW-DHM was reconstructed from 1825 to 2013 AD. The ensemble empirical mode decomposition method (EEMD) and multi-taper method (MTM) spectral analyses revealed that the cycles in the reconstructed PDSI5−7 were close to those of the ENSO and solar activity. This suggests that both the ENSO and solar activity have strong influence on the PDSI5−7 variation in the CW-DHM region. In addition, EEMD also revealed that the Pacific decadal oscillation and the Atlantic multi-decadal oscillation influenced the drought variation in this region. The PDSI5−7 reconstruction showed a long-term declining (dry) trend during the period of the 1950s–2010s. This drying trend was also detected in the PDSI data of other parts of China after the 1950s. We believe that these phenomena may be related to a large extent with the weakening of the East Asian summer monsoon. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Central-western Da Hinggan Mountains (CW-DHM); East Asian summer monsoon (EASM); Northeastern China; PDSI reconstruction; Tree-ring width
语种	英语
scopus关键词	chronology; decomposition analysis; drought; El Nino-Southern Oscillation; monsoon; reconstruction; seasonal variation; solar activity; spectral analysis; summer; tree ring; China; Da Hinggan Mountains
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146019
作者单位	School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an, 710049, China; The State Key Laboratory of Loess and Quaternary Geology, The Institute of Earth Environment, Chinese Academy of Sciences, No. 97 Yanxiang Road, Xi’an, Shaanxi 710061, China; Center for Excellence in Quaternary Science and Global Change, Chinese Academy of Sciences, Xi’an, 710061, China; Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; Interdisciplinary Research Center of Earth Science Frontier (IRCESF), Joint Center for Global Change Studies (JCGCS), Beijing Normal University, Beijing, 100875, China
推荐引用方式 GB/T 7714	Liu R.,Liu Y.,Li Q.,et al. Seasonal Palmer drought severity index reconstruction using tree-ring widths from multiple sites over the central-western Da Hinggan Mountains; China since 1825 AD[J],2019,53(2020-05-06).
APA	Liu R..,Liu Y..,Li Q..,Song H..,Li X..,...&Song Y..(2019).Seasonal Palmer drought severity index reconstruction using tree-ring widths from multiple sites over the central-western Da Hinggan Mountains; China since 1825 AD.Climate Dynamics,53(2020-05-06).
MLA	Liu R.,et al."Seasonal Palmer drought severity index reconstruction using tree-ring widths from multiple sites over the central-western Da Hinggan Mountains; China since 1825 AD".Climate Dynamics 53.2020-05-06(2019).