气候变化领域集成服务门户(CCPortal): Spatial synchrony in delta O-18 time-series from a tree-ring network are driven by synchronous hydroclimate variability in the transitional zone of the Asian summer monsoon

CCPortal

DOI	10.1016/j.agrformet.2021.108687
	Spatial synchrony in delta O-18 time-series from a tree-ring network are driven by synchronous hydroclimate variability in the transitional zone of the Asian summer monsoon
	Fan, Haowen; Gou, Xiaohua; Nakatsuka, Takeshi; Li, Zhen; Su, Jiajia; Sano, Masaki; Liu, Wenhuo; Fang, Keyan
通讯作者	Gou, XH (通讯作者)，Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 73000, Peoples R China. ; Gou, XH (通讯作者)，Lanzhou Univ, Gansu Liancheng Forest Ecosyst Field Observat & R, Lanzhou 730333, Peoples R China.
发表日期	2021
ISSN	0168-1923
EISSN	1873-2240
卷号	311
英文摘要	Owing to the increased need to assess global forest behavior under changing climatic conditions within a longterm context, spatial coherence in tree-ring records is of widespread interest. Spatial networks of tree growth have been widely discussed from regional to global scales, but few studies have reported stable oxygen isotopes in networks of tree rings (delta O-18(tree)), thus impeding a comprehensive hydroclimatic interpretation of delta O-18(tree) records over large spatial scales, i.e., isoscapes. In this study, a network of four annually resolved delta O-18(tree) chronologies (1805-2016) was developed for Southwest China, the transitional zone of the Asian summer monsoon, to test spatial coherence in delta O-18(tree) variations and to explore the climatic factors driving synchrony at different spatial scales. The quantitative analyses show that the four chronologies exhibit consistent annual variations, with the first principal component (PC1) accounting for 70% of the total variance, which uniformly respond to local relative humidity (RH) and precipitation delta O-18 during the monsoon season. This confirms the spatial coherence in delta O-18(tree) records. Furthermore, significant inter-site correlations of local RH and precipitation delta O-18 are also detected, revealing that it is the regionally homogeneous year-to-year variations in the hydroclimate that should be responsible for spatial coherence. For a larger spatial perspective, spatial correlation analyses reveal that the most prominent correlations between delta O-18(tree) and hydroclimate fields occur in the Indochina Peninsula, in which delta O-18(tree) changes are synchronized with those in Southwest China and the synchrony temporally varies with the Indian summer monsoon (ISM) intensity, indicating that coherent delta O-18(tree) variations are linked to ISM-related moisture transport. In addition, delta O-18(tree) records have shown strong in-phase relationships with the natural variabilities of the ISM and El Nino-Southern Oscillation (ENSO) across interannual and interdecadal timescales over the last 150 years, suggesting that spatial coherence in delta O-18(tree) records can be utilized to reflect the long-term history of large-scale atmospheric circulation.
关键词	OXYGEN-ISOTOPE CLOUD COVER PRECIPITATION SEASONALITY HYDROGEN CLIMATE RATIOS CHINA SHIFT
英文关键词	Tree rings; Oxygen isotope; Spatial synchrony; Indian summer monsoon; El Nino-Southern Oscillation
语种	英语
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000710990900008
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/255124
作者单位	[Fan, Haowen; Gou, Xiaohua; Su, Jiajia] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 73000, Peoples R China; [Fan, Haowen; Gou, Xiaohua; Su, Jiajia] Lanzhou Univ, Gansu Liancheng Forest Ecosyst Field Observat & R, Lanzhou 730333, Peoples R China; [Nakatsuka, Takeshi; Li, Zhen] Nagoya Univ, Grad Sch Environm Studies, Nagoya, Aichi 4648601, Japan; [Nakatsuka, Takeshi; Li, Zhen; Sano, Masaki] Res Inst Humanity & Nat, Kyoto 6038047, Japan; [Su, Jiajia] Univ Washington, Dept Biol, Seattle, WA 98195 USA; [Sano, Masaki] Waseda Univ, Fac Human Sci, Tokorozawa, Saitama 3591192, Japan; [Liu, Wenhuo] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; [Fang, Keyan] Fujian Normal Univ, Coll Geog Sci, Key Lab Humid Subtrop Ecogeog Proc, Minist Educ, Fuzhou, Peoples R China; [Fang, Keyan] Univ Gothenburg, Dept Earth Sci, Reg Climate Grp, Gothenburg, Sweden
推荐引用方式 GB/T 7714	Fan, Haowen,Gou, Xiaohua,Nakatsuka, Takeshi,et al. Spatial synchrony in delta O-18 time-series from a tree-ring network are driven by synchronous hydroclimate variability in the transitional zone of the Asian summer monsoon[J]. 中国科学院西北生态环境资源研究院,2021,311.
APA	Fan, Haowen.,Gou, Xiaohua.,Nakatsuka, Takeshi.,Li, Zhen.,Su, Jiajia.,...&Fang, Keyan.(2021).Spatial synchrony in delta O-18 time-series from a tree-ring network are driven by synchronous hydroclimate variability in the transitional zone of the Asian summer monsoon.AGRICULTURAL AND FOREST METEOROLOGY,311.
MLA	Fan, Haowen,et al."Spatial synchrony in delta O-18 time-series from a tree-ring network are driven by synchronous hydroclimate variability in the transitional zone of the Asian summer monsoon".AGRICULTURAL AND FOREST METEOROLOGY 311(2021).