干旱区生态环境知识资源中心(Arid): Tree-ring-based drought-pluvial variation in the Tianshan Mountains of northwestern China

Arid

DOI	10.1007/s00704-022-04028-1
	Tree-ring-based drought-pluvial variation in the Tianshan Mountains of northwestern China
	Wang, Shengjie; Jiao, Liang; Jiang, Yuan; Liu, Xuerui; Chen, Ke; Liu, Xiaoping
通讯作者	Jiao, L
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
ISSN	0177-798X
EISSN	1434-4483
出版年	2022
卷号	148 期号:3-4 页码:1727-1740
英文摘要	Understanding historical drought changes is critical to water resource management, vegetation growth, and human life in arid regions with vulnerable and sensitive ecological environments. Based on the Schrenk spruce (Picea schrenkiana) sampled from the whole Tianshan Mountains located northwestern China, we developed a tree-ring chronology to study the dry-wet changes through multiple sites sampling. The results showed the stable significantly positive response of tree-ring width chronology to the standardized precipitation and evapotranspiration index (SPEI) in current April and May, indicating that the tree-ring of Schrenk spruce contained the stronger signal of drought variation at the beginning of the growing season. Therefore, we reconstructed the SPEI from 1735 to 2016 in the study regions with 55.1% of the explained variance of reconstruction equation for 1960-2016, which verified the high accuracy of the reconstructed results. Droughts had alternated over the past three centuries with 14 distinct dry and wet periods. Analyzing the 282-year reconstructed drought showed a significant tendency to become wet for the study regions, which were also well correlated with historical droughts and volcanic eruptions events. The SPEI in the study regions was influenced mainly by large-scale atmospheric-oceanic variability with spectral analysis (MTM) revealing some significant low-frequency periods (53.7-78.7, 15.6-16.7, 7.7-8.2, 5.2-5.3, 3.7-3.9, and 2.1-2.2 years). In particular, the HYSPLIT model proved that the westerly circulation was the driving force of the dry-wet changes in the Tianshan Mountains and that the water vapor originated mainly from the North Atlantic.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000774639000005
WOS关键词	CLIMATE-CHANGE ; SUMMER TEMPERATURE ; GROWTH-RESPONSE ; TIME-SERIES ; RECONSTRUCTION ; PRECIPITATION ; VARIABILITY ; DENDROCLIMATOLOGY ; DISPERSION ; EARLYWOOD
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/2XILL650/394716
推荐引用方式 GB/T 7714	Wang, Shengjie,Jiao, Liang,Jiang, Yuan,et al. Tree-ring-based drought-pluvial variation in the Tianshan Mountains of northwestern China[J],2022,148(3-4):1727-1740.
APA	Wang, Shengjie,Jiao, Liang,Jiang, Yuan,Liu, Xuerui,Chen, Ke,&Liu, Xiaoping.(2022).Tree-ring-based drought-pluvial variation in the Tianshan Mountains of northwestern China.THEORETICAL AND APPLIED CLIMATOLOGY,148(3-4),1727-1740.
MLA	Wang, Shengjie,et al."Tree-ring-based drought-pluvial variation in the Tianshan Mountains of northwestern China".THEORETICAL AND APPLIED CLIMATOLOGY 148.3-4(2022):1727-1740.