Specific climatic signals recorded in earlywood and latewood δ&lt;sup&gt;18&lt;/sup&gt;O of tree rings in southwestern China

An, Wenling; Liu, Xiaohong; Leavitt, Steven W.; Ren, Jiawen; Sun, Weijun; Wang, Wenzhi; Wang, Yu; Xu, Guobao; Chen, Tuo; Qin, Dahe

doi:10.3402/tellusb.v64i0.18703

Cited by 32 publications

(18 citation statements)

References 55 publications

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“…8.76‰, An et al, 2012) or from Fokienia hodginsii in subtropical lowland China ( ca. 6.0‰; Xu et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…In high mountain regions of southwestern China, δ 18 O is a good indicator for monsoon moisture (An et al, 2012) or cloudiness (Liu et al, 2014). δ 18 O in Fokienia hodginsii is a promising proxy of drought variability in Laos (Xu et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…The combined analysis of δ 13 C and δ 18 O is a promising way to investigate tree physiological responses to environmental changes (McCarroll and Loader, 2004). However, there are only few studies that investigated the tree-ring carbon and oxygen isotope variations in subtropical and tropical areas in southwestern China (An et al, 2012; Xu Y. et al, 2014). …”

Section: Introductionmentioning

confidence: 99%

“…Thus, the contribution of the carry-over effect to wood formation might differ between species and regions. In regions influenced by the Asian summer monsoon climate, An et al (2012) found that earlywood δ 18 O was affected by early monsoon season temperature and relative humidity (RH), whereas latewood δ 18 O was correlated with late monsoon precipitation and RH. Therefore, separate analyses in tree ring earlywood and latewood stable isotopes may shed light on the physiological responses of tree species to seasonal environmental change.…”

Section: Introductionmentioning

confidence: 99%

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Earlywood and Latewood Stable Carbon and Oxygen Isotope Variations in Two Pine Species in Southwestern China during the Recent Decades

Grießinger

Gebrekirstos

et al. 2017

Front. Plant Sci.

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Stable isotopes in wood cellulose of tree rings provide a high-resolution record of environmental conditions, yet intra-annual analysis of carbon and oxygen isotopes and their associations with physiological responses to seasonal environmental changes are still lacking. We analyzed tree-ring stable carbon (δ13C) and oxygen (δ18O) isotope variations in the earlywood (EW) and latewood (LW) of pines from a secondary forest (Pinus kesiya) and from a natural forest (Pinus armandii) in southwestern China. There was no significant difference between δ13CEW and δ13CLW in P. kesiya, while δ13CEW was significantly higher than δ13CLW in P. armandii. For both P. kesiya and P. armandii, δ13CEW was highly correlated with previous year’s δ13CLW, indicating a strong carbon carry-over effect for both pines. The intrinsic water use efficiency (iWUE) in the earlywood of P. armandii was slightly higher than that of P. kesiya, and iWUE of both pine species showed an increasing trend, but at a considerably higher rate in P. kesiya. Respective δ13CEW and δ13CLW series were not correlated between the two pine species and could be influenced by local environmental factors. δ13CEW of P. kesiya was positively correlated with July to September monthly mean temperature (MMT), whereas δ13CEW of P. armandii was positively correlated with February to May MMT. Respective δ18OEW and δ18OLW in P. kesiya were positively correlated with those in P. armandii, indicating a strong common climatic forcing in δ18O for both pine species. δ18OEW of both pine species was negatively correlated with May relative humidity and δ18OEW in P. armandii was negatively correlated with May precipitation, whereas δ18OLW in both pine species was negatively correlated with precipitation during autumn months, showing a high potential for climate reconstruction. Our results reveal slightly higher iWUE in natural forest pine species than in secondary forest pine species, and separating earlywood and latewood of for δ18O analyses could provide seasonally distinct climate signals in southwestern China.

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“…8.76‰, An et al, 2012) or from Fokienia hodginsii in subtropical lowland China ( ca. 6.0‰; Xu et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Earlywood and Latewood Stable Carbon and Oxygen Isotope Variations in Two Pine Species in Southwestern China during the Recent Decades

Grießinger

Gebrekirstos

et al. 2017

Front. Plant Sci.

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“…Based on modern spatial and seasonal relationships with local precipitation amounts, data were interpreted to reflect past changes in local monsoon intensity (e.g. Wang et al, 2005;Cai et al, 2010;An et al, 2012). Precipitation d 18 O is however an integrated tracer of climate and water cycle conditions, depending on phase changes affecting water vapour from evaporation to condensation.…”

Section: Introductionmentioning

confidence: 99%

What controls precipitation δ<sup>18</sup>O in the southern Tibetan Plateau at seasonal and intra-seasonal scales? A case study at Lhasa and Nyalam

Gao

Masson‐Delmotte

Risi

et al. 2013

Tellus B: Chemical and Physical Meteorology

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A B S T R A C T Understanding the spatial and temporal controls of precipitation d 18 O in the southern Tibetan Plateau of central Asia is necessary for paleoclimate reconstructions from the wealth of regional archives (ice cores, lake sediments, tree ring cellulose, and speleothems). While classical interpretations of such records were conducted in terms of local precipitation, simulations conducted with atmospheric general circulation models enabled with water stable isotopes have suggested that past changes in south Asia precipitation d 18 O may be driven by remote processes linked to moisture transport. Studies conducted at the event scale can provide constraints to assess the drivers of precipitation d 18 O and the validity of simulated mechanisms. Here, we take advantage of new event precipitation d 18 O monitored from January 2005 to December 2007 at two southern Tibetan Plateau stations (Lhasa and Nyalam). The drivers of daily to seasonal variations are investigated using statistical relationships with local and regional temperature, precipitation amount and convective activity based on in situ data and satellite products. The strongest control on precipitation d 18 O at Lhasa during the monsoon season at event and seasonal scales is provided by the integrated regional convective activity upstream air mass trajectories, cumulated over several days. In contrast, the integrated convection appears to be the main driver of precipitation d 18 O at Nyalam only in July and August, and the situation is more complex in other months. Local climate variables can only account for a small fraction of the observed d 18 O variance, with significant differences between both stations. This study offers a better constraint on climate archives interpretation in the southern Tibetan Plateau. The daily data presented here also provides a benchmark to evaluate the capacity of isotopically enabled atmospheric general circulation models (iGCMs) to simulate the response of precipitation d 18 O to convection. This is illustrated using a nudged and zoomed simulation with the LMDZiso model. While it successfully simulates some seasonal and daily characteristics of precipitation d 18 O in the southern Tibetan Plateau, it fails to simulate the correlation between d 18 O and upstream precipitation. This calls for caution when using atmospheric models to interpret precipitation d 18 O archives in terms of past monsoon variability.

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Geographical variation in cool and warm season responses of earlywood and latewood tree‐ring chronologies in Athrotaxis selaginoides

Adriaanse‐Tucker

Allen

English

2023

J Quaternary Science

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Our understanding of land‐based cool season temperature variability over the past millennium is limited by the relative lack of annually resolved temperature proxies, especially in the Southern Hemisphere. Here, we develop the first earlywood (EW) and latewood (LW) width chronologies from Australia based on the Tasmanian endemic conifer Athrotaxis selaginoides in the far southeast of Australia. We also develop total ring width (RW), EW and LW chronologies from a new site in the far south. We compare the climate responses of RW, EW and adjusted LW chronologies of three A. selagnoides sites near the southern extent of the species with three sites of the species near the northern extent of the species. RW and EW at the southern sites are strongly and positively related to cool season temperature (July–October), but in the north, RW and EW are more strongly and positively related with summer (December–February) temperatures. Once adjusted for the influence of the same growing season EW, LW in the north is very strongly negatively correlated with January–February temperatures across southeastern Australia. The new southern RW and EW chronologies can be used to extend one of only two annually resolved regional cool season temperature reconstructions in the Southern Hemisphere back a further 180 years.

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Specific climatic signals recorded in earlywood and latewood δ<sup>18</sup>O of tree rings in southwestern China

Cited by 32 publications

References 55 publications

Earlywood and Latewood Stable Carbon and Oxygen Isotope Variations in Two Pine Species in Southwestern China during the Recent Decades

Earlywood and Latewood Stable Carbon and Oxygen Isotope Variations in Two Pine Species in Southwestern China during the Recent Decades

What controls precipitation δ<sup>18</sup>O in the southern Tibetan Plateau at seasonal and intra-seasonal scales? A case study at Lhasa and Nyalam

Geographical variation in cool and warm season responses of earlywood and latewood tree‐ring chronologies in Athrotaxis selaginoides

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