干旱区生态环境知识资源中心(Arid): Tree-Ring Stable Carbon Isotope as a Proxy for Hydroclimate Variations in Semi-Arid Regions of North-Central China

Arid

DOI	10.3390/f13040492
	Tree-Ring Stable Carbon Isotope as a Proxy for Hydroclimate Variations in Semi-Arid Regions of North-Central China
	Kang, Shuyuan; Loader, Neil J.; Wang, Jianglin; Qin, Chun; Liu, Jingjing; Song, Miao
通讯作者	Wang, JL
来源期刊	FORESTS
EISSN	1999-4907
出版年	2022
卷号	13 期号:4
英文摘要	Carbon and oxygen isotope ratios (delta C-13 and delta O-18) were measured in annual tree-ring cellulose samples dated from 1756 to 2015 CE. These samples were extracted from Chinese pine (Pinus tabulaeformis Carr.) trees located in a semi-arid region of north-central China. We found that tree-ring delta C-13 and delta O-18 values both recorded similar climatic signals (e.g., temperature and moisture changes), but found that tree-ring delta C-13 exhibited a stronger relationship with mean temperature, precipitation, average relative humidity, self-calibrating Palmer drought severity index (scPDSI), and standard precipitation evaporation index (SPEI) than delta O-18 during the period 1951-2015 CE. The strongest correlation observed was between tree-ring delta C-13 and scPDSI (previous June to current May), which explains similar to 43% of the variance. The resulting 130-year reconstruction reveals severe drought events in the 1920s and a sustained drying trend since the 1980s. This hydroclimate record based on tree-ring delta C-13 data also reveals similar dry and wet events to other proxy data (i.e., tree-ring width and historical documentation) that have allowed reconstructions to be made across the northern fringe of the Asian summer monsoon region. Our results suggest that both large-scale modes of climate variability (e.g., El Nino-Southern Oscillation, Pacific Decadal Oscillation, and North Atlantic Oscillation) and external forcing (e.g., solar variability) may have modulated moisture variability in this region. Our results imply that the relationship between tree-ring delta O-18 and local climate is less well-characterized when compared to delta C-13 and may be affected more strongly by the influences of these different atmospheric circulation patterns. In this semi-arid region, tree-ring delta C-13 appears to represent a better tool with which to investigate historical moisture changes (scPDSI).
英文关键词	carbon isotope oxygen isotope Chinese pine hydroclimate north-central China
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000787067300001
WOS关键词	ASIAN SUMMER MONSOON ; RELATIVE-HUMIDITY ; CLIMATE SIGNALS ; RECONSTRUCTION ; DELTA-O-18 ; DELTA-C-13 ; SERIES ; OXYGEN ; PRECIPITATION ; TEMPERATURE
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392612
推荐引用方式 GB/T 7714	Kang, Shuyuan,Loader, Neil J.,Wang, Jianglin,et al. Tree-Ring Stable Carbon Isotope as a Proxy for Hydroclimate Variations in Semi-Arid Regions of North-Central China[J],2022,13(4).
APA	Kang, Shuyuan,Loader, Neil J.,Wang, Jianglin,Qin, Chun,Liu, Jingjing,&Song, Miao.(2022).Tree-Ring Stable Carbon Isotope as a Proxy for Hydroclimate Variations in Semi-Arid Regions of North-Central China.FORESTS,13(4).
MLA	Kang, Shuyuan,et al."Tree-Ring Stable Carbon Isotope as a Proxy for Hydroclimate Variations in Semi-Arid Regions of North-Central China".FORESTS 13.4(2022).