Larch Cellulose Shows Significantly Depleted Hydrogen Isotope Values With Respect to Evergreen Conifers in Contrast to Oxygen and Carbon Isotopes

The analysis of the stable isotope of the tree-ring cellulose is an important tool for paleo climatic investigations. Long tree-ring chronologies consist predominantly of oaks and conifers in Europe, including larch trees (Larix decidua) and cembran pines (Pinus cembra) that form very long tree ring chronologies in the Alps and grow at the treeline, where tree growth is mainly determined by temperature variations. We analyzed δ13C, δ18O and δ2H isotopes in the cellulose extracted from tree-rings of wood samples collected at high altitude in the Swiss and Tyrol Alps, covering the whole Holocene period. We found that larch cellulose was remarkably more depleted in deuterium than that of cembran pine, with mean δ2H values of −113.4 ± 9.7‰ for larch and of −65.4 ± 11.3‰ for cembran pine. To verify if these depleted values were specific to larch or a property of the deciduous conifers, we extended the analysis to samples from various living conifer species collected at the Bern Botanical Garden. The results showed that not only the larch, but also all the samples of the deciduous larch family had a cellulose composition that was highly depleted in δ2H with regard to the other evergreen conifers including cembran pine, a difference that we attribute to a faster metabolism of the deciduous conifers. The δ18O values were not statistically different among the species, in agreement with the hypothesis that they are primary signals of the source water. While the δ13C values were slightly more depleted for larch than for cembran pine, likely due to metabolic differences of the two species. We conclude that the deciduous larch conifers have specific metabolic hydrogen fractionations and that the larch unique signature of δ2H is useful to recognize it from other conifers in subfossil wood samples collected for paleoclimatic studies. For climate information the absolute δ2H values of larch should be considered carefully and separate from other species.

Download Full-text

Climate signals in carbon and oxygen isotope ratios of Pinus cembra tree‐ring cellulose from the Călimani Mountains, Romania

International Journal of Climatology ◽

10.1002/joc.6349 ◽

2020 ◽

Vol 40 (5) ◽

pp. 2539-2556 ◽

Cited By ~ 5

Author(s):

Viorica Nagavciuc ◽

Zoltán Kern ◽

Monica Ionita ◽

Claudia Hartl ◽

Oliver Konter ◽

...

Keyword(s):

Oxygen Isotope ◽

Tree Ring ◽

Isotope Ratios ◽

Pinus Cembra ◽

Oxygen Isotope Ratios ◽

Carbon And Oxygen Isotope ◽

Climate Signals ◽

Tree Ring Cellulose

Download Full-text

Alpine Holocene Tree-Ring Dataset: Age-related trends in the stable isotopes of cellulose show species-specific patterns

10.5194/bg-2020-166 ◽

2020 ◽

Author(s):

Tito Arosio ◽

Malin M. Ziehmer ◽

Kurt Nicolussi ◽

Christian Schlüchter ◽

Markus Leuenberger

Keyword(s):

Time Series ◽

Stable Isotopes ◽

Tree Ring ◽

Tree Age ◽

Conifer Species ◽

Adult Growth ◽

Age Related ◽

Cambial Age ◽

Cembran Pine ◽

Δ18o And Δ13c

Abstract. Stable isotopes in tree-ring cellulose are important tools for climatic reconstructions even though their interpretation could be challenging due to non-climate signals, primarily those related to tree ageing. Previous studies on the presence of tree-age related trends during juvenile as well as adult growth phases in δD, δ18O and δ13C time series yielded variable results that are not coherent among different plant species. We analysed possible trends in the extracted cellulose of tree-rings of 85 larch trees and 119 cembran pine trees, i.e. in samples of one deciduous and one evergreen conifer species collected at the treeline in the Alps covering nearly the whole Holocene. The age trend analyses of all tree-ring variables were conducted on the basis of mean curves established by averaging the cambial-age aligned tree series. For cambial ages over 100 years, our results prove the absence of any age-related effect in the δD, δ18O and δ13C time series for both the evergreen as well the deciduous conifer species, with the only exception of larch δD. However, for lower cambial ages, we found trends that differ for each isotope and species. I.e., mean δ13C values in larch do not vary with ageing and can be used without detrending, whereas those in cembran pine show a juvenile effect and the data should be detrended. Mean δ18O values present two distinct ageing phases for both species complicating detrending. Similarly, mean δD values in larch change in the first 50 yr whereas cembran pine between 50–100 yr. Values for these two periods of cambial age for δD and δ18O should be used with caution for climatic reconstructions, ideally complemented by additional information regarding mechanisms for these trends.

Download Full-text

Alpine Holocene tree-ring dataset: age-related trends in the stable isotopes of cellulose show species-specific patterns

Biogeosciences ◽

10.5194/bg-17-4871-2020 ◽

2020 ◽

Vol 17 (19) ◽

pp. 4871-4882

Author(s):

Tito Arosio ◽

Malin M. Ziehmer ◽

Kurt Nicolussi ◽

Christian Schlüchter ◽

Markus Leuenberger

Keyword(s):

Time Series ◽

Stable Isotopes ◽

Tree Ring ◽

Tree Age ◽

Conifer Species ◽

Adult Growth ◽

Age Related ◽

Cambial Age ◽

Cembran Pine ◽

Δ18o And Δ13c

Abstract. Stable isotopes in tree-ring cellulose are important tools for climatic reconstructions even though their interpretation could be challenging due to nonclimate signals, primarily those related to tree aging. Previous studies on the presence of tree-age-related trends during juvenile as well as adult growth phases in δD, δ18O, and δ13C time series yielded variable results that are not coherent among different plant species. We analyzed possible trends in the extracted cellulose of tree rings of 85 larch trees and 119 cembran pine trees, i.e., in samples of one deciduous and one evergreen conifer species collected at the tree line in the Alps, covering nearly the whole Holocene. The age trend analyses of all tree-ring variables were conducted on the basis of mean curves established by averaging the cambial-age-aligned tree series. For cambial ages over 100 years, our results prove the absence of any age-related effect in the δD, δ18O, and δ13C time series for both the evergreen and the deciduous conifer species, with the only exception being larch δD. However, for lower cambial ages, we found trends that differ for each isotope and species; i.e., mean δ13C values in larch do not vary with aging and can be used without detrending, whereas those in cembran pine show a juvenile effect, and the data should be detrended. Mean δ18O values present two distinct aging phases for both species, complicating detrending. Similarly, mean δD values in larch change in the first 50 years, whereas cembran pine changes between 50 and 100 years. Values for these two periods of cambial age for δD and δ18O should be used with caution for climatic reconstructions, ideally complemented by additional information regarding mechanisms for these trends.

Download Full-text

Reduced climate sensitivity of carbon, oxygen and hydrogen stable isotope ratios in tree-ring cellulose of silver fir (Abies alba Mill.) influenced by background SO2 in Franconia (Germany, Central Europe)

Environmental Pollution ◽

10.1016/j.envpol.2013.10.030 ◽

2014 ◽

Vol 185 ◽

pp. 281-294 ◽

Cited By ~ 16

Author(s):

Tatjana Boettger ◽

Marika Haupt ◽

Michael Friedrich ◽

John S. Waterhouse

Keyword(s):

Stable Isotope ◽

Central Europe ◽

Tree Ring ◽

Climate Sensitivity ◽

Abies Alba ◽

Isotope Ratios ◽

Stable Isotope Ratios ◽

Silver Fir ◽

Tree Ring Cellulose

Download Full-text

Recent and dramatic changes in Pacific storm trajectories recorded inδ18O from Bristlecone Pine tree ring cellulose

Geochemistry Geophysics Geosystems ◽

10.1029/2007gc001803 ◽

2008 ◽

Vol 9 (4) ◽

pp. n/a-n/a ◽

Cited By ~ 24

Author(s):

Max B. Berkelhammer ◽

Lowell D. Stott

Keyword(s):

Tree Ring ◽

Pine Tree ◽

Bristlecone Pine ◽

Tree Ring Cellulose

Download Full-text

Contrasting tree ring Hg records in two conifer species: Multi-site evidence of species-specific radial translocation effects in Scots pine versus European larch

The Science of The Total Environment ◽

10.1016/j.scitotenv.2020.144022 ◽

2021 ◽

Vol 762 ◽

pp. 144022

Author(s):

Tereza Nováková ◽

Tomáš Navrátil ◽

Jason D. Demers ◽

Michal Roll ◽

Jan Rohovec

Keyword(s):

Tree Ring ◽

Scots Pine ◽

European Larch ◽

Conifer Species ◽

Species Specific

Download Full-text

Response to the comment of V. J. Terwilliger on “a mechanistic model for interpretation of hydrogen and oxygen isotope ratios in tree-ring cellulose,” by J. S. Roden, G. Lin, and J. R. Ehleringer (2000) Geochim. Cosmochim. Acta 64:21–35.

Geochimica et Cosmochimica Acta ◽

10.1016/s0016-7037(01)00663-9 ◽

2002 ◽

Vol 66 (4) ◽

pp. 733-734 ◽

Cited By ~ 5

Author(s):

John S. Roden ◽

Guanghui Lin ◽

James R. Ehleringer

Keyword(s):

Oxygen Isotope ◽

Tree Ring ◽

Mechanistic Model ◽

Isotope Ratios ◽

Oxygen Isotope Ratios ◽

Hydrogen And Oxygen Isotope ◽

Tree Ring Cellulose

Download Full-text

Response of Siberian trees to climatic changes over the past 1500 years

10.5194/egusphere-egu21-8995 ◽

2021 ◽

Author(s):

Olga Churakova (Sidorova) ◽

Marina Fonti ◽

Rolf Siegwolf ◽

Tatyana Trushkina ◽

Eugene Vaganov ◽

...

Keyword(s):

Tree Ring ◽

Ice Core ◽

Climatic Changes ◽

Medieval Warm Period ◽

Warm Period ◽

Taimyr Peninsula ◽

Climate Conditions ◽

Northeastern Part ◽

The Past ◽

Tree Ring Cellulose

<p>We use an interdisciplinary approach combining stable isotopes in tree rings, pollen data, ice cores from temperature-limited environment in the Siberian north and developed a comprehensive description of the climatic changes over the past 1500 years. We found that the Climatic Optimum Period was warmer and drier compared to the Medieval one, but rather similar to the recent period. Our results indicate that the Medieval Warm period in the Taimyr Peninsula started earlier and was wetter compared to the northeastern part of Siberia (northeastern Yakutia). Summer precipitation reconstruction obtained from carbon isotopes in tree-ring cellulose from Taimyr Peninsula significantly correlated with the pollen data of the Lama Lake (Andreev et al. 2004) and oxygen isotopes of the ice core from Severnaya Zemlya (Opel et al. 2013) recording wetter climate conditions during the Medieval Warm period compared to the northeastern part of Siberia. Common large-scale climate variability was confirmed by significant relationship between oxygen isotope data in tree-ring cellulose from the Taimyr Peninsula and northeastern Yakutia, and oxygen isotope ice core data from Severnaya Zemlja during the Medieval Warm period and the recent one. Finally, we showed that the recent warming on the Taimyr Peninsula is not unprecedented in the Siberian north. Similar climate conditions were recorded by stable isotopes in tree rings, pollen, and ice core data 6000 years ago. On the northeastern part of Siberia newly developed a 1500-year summer vapor pressure deficit (VPD) reconstruction showed, that VPD increased recently, but does not yet exceed the maximum values reconstructed during the Medieval Warm period. The most humid conditions in the northeastern part of Siberia were recorded in the Early Medieval period and during the Little Ice Age. However, the increasing VPD under elevated air temperature in the last decades affects the hydrological regime of these sensitive ecosystems by greater evapotranspiration rates. Further VPD increase will significantly affect Siberian forests most likely leading to drought even under additional access of thawed permafrost water.</p><p>This work was supported by the FP7-PEOPLE-IIF-2008 - Marie Curie Action: "International Incoming Fellowships" 235122 and "Reintegration Fellowships" 909122 &#8220;Climatic and environmental changes in the Eurasian Subarctic inferred from tree-ring and stable isotope chronologies for the past and recent periods&#8221; and the Government of Krasnoyarsk Kray and Russian Foundation for Basic Research and Krasnoyarsk Foundation 20-44-240001 &#8220;Adaptation of conifer forests on the north of the Krasnoyarsk region (Taimyr Peninsula) to climatic changes after extreme events over the past 1500 years&#8220; awarded to Olga V. Churakova (Sidorova).</p>

Download Full-text