Tree-ring-based drought variability in the eastern region of the Silk Road and its linkages to the Pacific Ocean

doi:10.1016/j.ecolind.2018.09.032

IEECAS OpenIR > 现代环境研究室

	Tree-ring-based drought variability in the eastern region of the Silk Road and its linkages to the Pacific Ocean
	Sun, Changfeng 1; Liu, Yu 1,2,3,4
通讯作者	Liu, Yu(liuyu@loess.llqg.ac.cn)
	2019
发表期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
卷号	96 页码:421-429
摘要	Drought variability from 1568 to 2014 was presented for the eastern region of the Silk Road by using five tree ring chronologies and an optimal information extraction method (i.e., one of the composite-plus-scale methods). The inspection results of the split calibration-verification procedure for the transfer functions showed that the reconstructed Palmer drought severity index (PDSI) was credible throughout the entire time interval. During the past 447 years, there were seven dry periods (1616-1622, 1629-1645, 1682-1730, 1760-1778, 1805-1884, 1919-1933 and 1990-2009) and seven wet periods (1573-1615, 1623-1628, 1646-1681, 1731-1759, 1779-1804, 1885-1918 and 1934-1989). The dry periods were well-documented historical drought events. Significant interannual periods of 2.1-3.8 years and interdecadal cycles of 17.1, 18.3, 23.8, 42.7, 51.3 and 73.0 years were identified via the multitaper method for spectral analysis. Similar patterns of drought fluctuations were found in the records of the drought/flood index and other drought reconstructions. By comparing the reconstructed PDSI with the El Nifio-Southern Oscillation (ENSO) and Pacific Decadal Oscillation (PDO) at the multidecadal scale, it was discovered that when ENSO and PDO were in phase (i.e., high-PDO/warm-ENSO phase or low-PDO/cold-ENSO phase), the study region was dry or wet more often, respectively, especially before 1850. The influence of ENSO and PDO on the decadal variability of drought has been affected by global warming.
关键词	Tree rings Drought index reconstruction Silk Road Northwest China Pacific Ocean
DOI	10.1016/j.ecolind.2018.09.032
关键词[WOS]	TIBETAN PLATEAU ; PRECIPITATION VARIATION ; PDSI RECONSTRUCTION ; PAST MILLENNIUM ; INNER-MONGOLIA ; CHINA ; TEMPERATURE ; MONSOON ; ENSO ; AD
收录类别	SCI ; SCI
语种	英语
资助项目	CAS Light of West China Program ; CAS Research Program[QYZDJ-SSW-DQC021] ; CAS Research Program[XDPB05] ; CAS Research Program[GJHZ1777] ; National Natural Science Foundation of China[41630531] ; Key Project of IEECAS ; State Key Laboratory of Loess and Quaternary Geology (SKLLQG)
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
项目资助者	CAS Light of West China Program ; CAS Research Program ; National Natural Science Foundation of China ; Key Project of IEECAS ; State Key Laboratory of Loess and Quaternary Geology (SKLLQG)
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS记录号	WOS:000464889600042
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14160
专题	现代环境研究室
通讯作者	Liu, Yu
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 2.Beijing Normal Univ, IRCESF, Beijing 100875, Peoples R China 3.Beijing Normal Univ, JCGCS, Beijing 100875, Peoples R China 4.Qingdao Natl Lab Marine Sci & Technol, Open Studio Ocean Continental Climate & Environm, Qingdao 266237, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Sun, Changfeng,Liu, Yu. Tree-ring-based drought variability in the eastern region of the Silk Road and its linkages to the Pacific Ocean[J]. ECOLOGICAL INDICATORS,2019,96:421-429.
APA	Sun, Changfeng,&Liu, Yu.(2019).Tree-ring-based drought variability in the eastern region of the Silk Road and its linkages to the Pacific Ocean.ECOLOGICAL INDICATORS,96,421-429.
MLA	Sun, Changfeng,et al."Tree-ring-based drought variability in the eastern region of the Silk Road and its linkages to the Pacific Ocean".ECOLOGICAL INDICATORS 96(2019):421-429.