干旱区生态环境知识资源中心(Arid): Shrub-rings used to reconstruct drought history of the central Alxa desert, northwest China

Arid

DOI	10.1002/joc.7108
	Shrub-rings used to reconstruct drought history of the central Alxa desert, northwest China
	Ding, Ai-Jun; Xiao, Sheng-Chun; Peng, Xiao-Mei; Tian, Quan-Yan; Han, Chao
通讯作者	Xiao, SC (corresponding author), Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Peoples R China.
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN	0899-8418
EISSN	1097-0088
出版年	2021
英文摘要	The climate history of the Alxa desert of northwestern China must be sought both in recent instrumental records (dating from 1960) and in high-resolution proxy data. Climate proxies are scarce in desert areas; however, long-lived desert shrubs can offer one such proxy. We have used shrub-ring data from Zygophyllum xanthoxylum, collected in the central Alxa desert, to reconstruct the Self-calibrating Palmer Drought Severity Index (scPDSI) for the period 1880-2015. The data covers the May-July growth season. When we compared the history constructed from the shrub-ring data with the instrumental data collected 1960-2015, we found that the reconstructed history explained 41% of the variance in scPDSI data (40% after adjusting for loss of degrees of freedom). The reconstructed history shows that this region has experienced six persistent droughts and four seasons wetter than usual during the period under study. Of note is a severe drought event in 1920s that affected much of northern China (as noted in contemporary documents). The droughts and wet seasons identified in our reconstruction are consistent with reports from other researchers who have studied the climate history or the region. Our study suggests that it is feasible to reconstruct climate history using shrub-ring data from long-lived desert shrubs.
英文关键词	Alxa desert climate history scPDSI reconstruction shrub‐ rings
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000635340600001
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352243
作者单位	[Ding, Ai-Jun; Xiao, Sheng-Chun; Tian, Quan-Yan; Han, Chao] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Peoples R China; [Ding, Ai-Jun; Han, Chao] Univ Chinese Acad Sci, Beijing, Peoples R China; [Peng, Xiao-Mei] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Ding, Ai-Jun,Xiao, Sheng-Chun,Peng, Xiao-Mei,et al. Shrub-rings used to reconstruct drought history of the central Alxa desert, northwest China[J],2021.
APA	Ding, Ai-Jun,Xiao, Sheng-Chun,Peng, Xiao-Mei,Tian, Quan-Yan,&Han, Chao.(2021).Shrub-rings used to reconstruct drought history of the central Alxa desert, northwest China.INTERNATIONAL JOURNAL OF CLIMATOLOGY.
MLA	Ding, Ai-Jun,et al."Shrub-rings used to reconstruct drought history of the central Alxa desert, northwest China".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2021).