Tree-ring oxygen isotope across monsoon Asia: Common signal and local influence

Xu, Chenxi; Zhao, Qingyu; An, Wenling; Wang, Shih-Yu; Tan, Ning; Sano, Masaki; Nakatsuka, Takeshi; Borhara, Krishna; Guo, Zhengtang

doi:10.1016/j.quascirev.2021.107156

Cited by 31 publications

(19 citation statements)

References 71 publications

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“…Xu et al . (2021) found that ENSO is the main factor controlling the common signal of δ 18 O TR across a wide range of monsoonal Asia. Compared with that study, our work focuses on mechanisms but confines in a narrower area.…”

Section: Discussionmentioning

confidence: 99%

“…For example, a strong spring δ 18 O P signal in TW δ 18 O TR and a relatively southeast location of TW may account for a relatively stable ENSO signal in TW δ 18 O TR ; and the southwest location makes GL δ 18 O TR prone to be affected by the Indian monsoon and present different responses to ENSO from the other three records. Xu et al (2021) found that ENSO is the main factor controlling the common signal of δ 18 O TR across a wide range of monsoonal Asia. Compared with that study, our work focuses on mechanisms but confines in a narrower area.…”

Section: Changes In the Enso Signals Over Timementioning

confidence: 96%

“…The oxygen isotope ratio in tree‐ring cellulose (denoted as δ 18 O TR ) is one of the most important paleoclimate proxies, which has the merits of a clear mechanism model, strong regional representativeness, and a weak juvenile effect (McCarroll and Loader, 2004; Li et al ., 2020; Shi et al ., 2020; Xu et al ., 2021). In particular, δ 18 O TR compensates for the fact that tree‐ring width may fail to record climate signals in warm and moist areas where the climatic limitation on tree growth is weak (Evans and Schrag, 2004; Sano et al ., 2012; Schollaen et al ., 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Recently, based on δ 18 O P observations, Lagrangian trajectory experiments, and isotopic enabled general circulation models, researchers have noted that compared with the local climate, δ 18 O P of one site is more sensitive to changes in upstream rainfall amount (Pausata et al ., 2011; Duy et al ., 2018), convective activity (Vimeux et al ., 2011; Gao et al ., 2013; 2018; He et al ., 2015; Zwart et al ., 2016; Cai et al ., 2018; Hu et al ., 2018), and moisture sources (Tan, 2014; Tan et al ., 2016; Wei et al ., 2018; Hu et al ., 2019; Wolf et al ., 2020). These findings explained the δ 18 O P in response to regional or remote climatic signals and circulation signals, which was also applied to understanding δ 18 O TR signals in South America and monsoonal Asia (Brienen et al ., 2012; Zhu et al ., 2012; Schollaen et al ., 2013; Sano et al ., 2017; Xu et al ., 2021).…”

Section: Introductionmentioning

confidence: 99%

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How is the El Niño–Southern Oscillation signal recorded by tree‐ring oxygen isotopes in southeastern China?

Fang

et al. 2022

Intl Journal of Climatology

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Previous studies universally found that tree-ring oxygen isotope (δ 18 O TR ) in southeastern China (SEC) significantly recorded the El Niño-Southern Oscillation (ENSO) signal. However, the correlation between the climate in SEC and ENSO is insignificant, so the local climatic response of SEC δ 18 O TR fails to explain the significant positive correlations between these δ 18 O TR records and ENSO. In this study, based on four δ 18 O TR series from SEC, meteorological data, simulated precipitation oxygen isotope (δ 18 O P ) data, and a moisture uptake atlas deduced from Lagrangian backward trajectory experiments, a conceptual model was established to explain how the ENSO signal is recorded by SEC δ 18 O TR . During the El Niño decaying years, the Northwest Pacific (NWP) convective activity weakens; the convective weakening areas coincide with the main moisture sources for SEC, which enriches 18 O in moisture that is transported to SEC, resulting in positive anomalies of δ 18 O P in SEC; finally, the ENSO-modulated δ 18 O P signal is inherited by SEC δ 18 O TR . The opposite situations occur in the La Niña events. It was also indicated that the change in the moisture contribution percentage from different sources may not be a primary factor that connects SEC δ 18 O TR with ENSO. These findings contribute to understanding climatic signals represented by δ 18 O TR and δ 18 O P in the East Asian monsoon region. K E Y W O R D SEl Niño-Southern Oscillation, oxygen isotope ratios in precipitation, southeastern China, tree-ring oxygen isotopes, upstream convective condition Abbreviations: δ 18 O TR , oxygen isotope ratio in tree-ring cellulose; δ 18 O P , oxygen isotope ratio in precipitation; CMAP, CPC Merged Analysis of Precipitation (dataset); CP, central Pacific; CRU TS4.05, Climatic Research Unit Time-series version 4.05 (dataset); CT, Changting (tree-ring sampling site); DJF(−1), winter (December-February

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Section: Discussionmentioning

confidence: 99%

Section: Changes In the Enso Signals Over Timementioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

How is the El Niño–Southern Oscillation signal recorded by tree‐ring oxygen isotopes in southeastern China?

Fang

et al. 2022

Intl Journal of Climatology

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“…In response, an isotopic analysis method has been proposed [17][18][19], and the application of this method to pollen [20][21][22], phytoliths [23][24][25], and seeds [26] have revealed a new opportunity for high-precision quantitative reconstruction of paleoclimates. Tree annual rings with good temporal continuity and high accuracy have long been important indicators for paleoclimate studies, and recent studies on tree wheel isotopes have greatly improved the accuracy of paleoclimate reconstruction [27][28][29][30][31][32][33][34]. The analysis of charcoal, as plant fossils, is an important indicator for paleoclimate reconstruction due to its easy accessibility and high identification accuracy [19,30,[35][36][37], especially in areas where sporulation is poorly preserved.…”

Section: Introductionmentioning

confidence: 99%

Stable carbon isotopes of woods during carbonization and their correlation with climatic factors

Luo

Sun²,

Li³

et al. 2022

PLoS ONE

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To explore the applicability of the carbon isotope composition (δ13C) of fossil charcoal for the quantitative reconstruction of paleoclimates, we selected five points in Shaanxi province, from north to south, to collect modern Pinus species and Quercus species to sample covering areas with obvious climatic differences. In order to reveal the relationships between δ13C of charcoal and climate variables on the basis of carbonization experiments, we evaluated the fractionation mechanism of δ13C of charcoal, and compared the differences between δ13C of charcoal in wildfire experiments and indoor experiments regarding genera and species. The results showed significant differences in δ13C between genera but no significant differences among species. Additionally, the δ13C of charcoal was significantly negatively correlated with precipitation and positively correlated with evaporation, which could be determined from δ13C values in the study area to reconstruct ancient precipitation and evaporation in the future.

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Tree‐ring oxygen isotope recorded precipitation variations over the past two centuries in the northeast Chinese Loess Plateau

Wang

et al. 2022

Intl Journal of Climatology

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It was shown in previous studies that tree-ring oxygen isotope (δ 18 O TR ) was a proxy of regional precipitation. Using two δ 18 O TR chronologies of Pinus tabulaeformis Carr. in northeast Chinese Loess Plateau (CLP), we synthesized a master series which had a high correlation with regional precipitation from previous-year September to current-year August (P SA ) (r = −0.650, N = 52, p < .001). Thus we reconstructed the P SA over the past two centuries (AD 1808(AD -2009 for the northeast CLP. The results of calibration-verification tests indicated that the precipitation reconstruction was stable and reliable.Compared with reconstructions based on the tree-ring width and historical documents, the P SA reconstruction reserved more decadal low-frequency climate signals such as the drying trend since the 1930s. Superposed epoch analysis (SEA) showed that the large tropical volcanic eruptions significantly reduced P SA in the first year after the eruptions. The contrast of the regional precipitation reconstructions in the west, northeast, and southeast CLP demonstrated that spatial and temporal differences of precipitation variation. In terms of extreme climate events, major droughts in the mid-to-late 1920s were recorded in all three regional precipitation records, while the Ding-Wu Disaster (AD 1876-1878) was only found in the southeast CLP. Under the background of the weakening Asian monsoon and global warming, CLP was more prone to droughts in the last five decades.

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Tree-ring oxygen isotope across monsoon Asia: Common signal and local influence

Cited by 31 publications

References 71 publications

How is the El Niño–Southern Oscillation signal recorded by tree‐ring oxygen isotopes in southeastern China?

How is the El Niño–Southern Oscillation signal recorded by tree‐ring oxygen isotopes in southeastern China?

Stable carbon isotopes of woods during carbonization and their correlation with climatic factors

Tree‐ring oxygen isotope recorded precipitation variations over the past two centuries in the northeast Chinese Loess Plateau

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