Dendrochemical Challenge in Climate Science: Whether Chemical Elements in Wood Reflect the Fluctuations in Weather Parameters

Gavrikov, Vladimir L.; Fertikov, A. I.; Шарафутдинов, Р А; Pyzhev, Anton I.; Vaganov, Еugene А.

doi:10.3390/plants11233240

Cited by 3 publications

(4 citation statements)

References 23 publications

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“…To summarize the differences in elemental contents in early-and late-wood, the consistent relationships may be a basis for an in-depth inquiry regarding why the elements are distributed in the wood this or that way. It is most probable that methods including extraction and re-scanning techniques [10,11] may help to penetrate into mechanisms of elemental sorption and distribution in tree rings.…”

Section: Discussionmentioning

confidence: 99%

“…The meteorological dataset has been used in a previous study [11]. The initial source of the data is the database of the Krasnoyarsk Weather Station, WMO ID = 29570.…”

Section: Meteorological Datamentioning

confidence: 99%

“…Scharnweber et al [10] suggested to extract the wooden specimen in a number of solvents (water, alcohol, and acetone) to separate the elements tightly bound in wood from volatile substances inducing noise into the environmental signal. Gavrikov et al [11] used some other chemical agents (alcohol and hydrochloric acid) and found that only after the treatment were correlations of elemental content with meteorological parameters able to be found in some species (esp., in Siberian larch).…”

Section: Introductionmentioning

confidence: 99%

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Early-Wood vs. Late-Wood in Scots Pine: Finding Stable Relationships in Elemental Distribution

Gavrikov,

Fertikov,

Sharafutdinov

et al. 2023

Sci

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This study explored whether consistent differences can be found between early-wood and late-wood in terms of elemental content of tree rings. The species to study was Pinus sylvestris L. growing within an even-aged stand planted during the early 1970s in eastern Siberia. The wood specimens were extracted from the north and south sides of trees and subsequently scanned through an X-ray fluorescent facility Itrax Multiscanner. A sequence of relatively wide tree-rings was chosen for the analysis. The scanning data on a number of elements (Al, Si, P, S, Cl, K, Ca, Ti, Mn, Fe, Cu, Zn, Sr, and Hg) were split into early-wood and late-wood data for each year of growth. The early- and late-wood data in the same ring were analyzed for basic statistics against each other as well as against available meteorological data. In the northern direction, the elements Al, Si, P, Cl, Cu, and Zn are always more abundant in the late-wood, while Ca, Fe, and Sr are always more abundant in the early-wood. What is important is how the differences for P, Ca, Fe, Cu, Zn, and Sr were always significant. The calcium content in the early-wood was the most consistently reflective regarding the meteorological data for the early summer (June). In some trees, the late-wood K content was well correlated with the Vysotskii–Ivanov climatic index. In the southern direction, Cu and Zn were always more abundant in the late-wood, while Sr was more abundant in the early-wood. The differences for all three elements were always significant. The cases of consistent relationships, though rare, help to develop a research program in the area of dendrochemistry.

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Section: Discussionmentioning

confidence: 99%

“…The meteorological dataset has been used in a previous study [11]. The initial source of the data is the database of the Krasnoyarsk Weather Station, WMO ID = 29570.…”

Section: Meteorological Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Early-Wood vs. Late-Wood in Scots Pine: Finding Stable Relationships in Elemental Distribution

Gavrikov,

Fertikov,

Sharafutdinov

et al. 2023

Sci

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“…However, the chemical responses to fire dates were not always the same, so the interpretation of these conclusions and those of dendrochemical studies in general should be cautiously applied [121] due to the recurring dendrochemical uncertainties described over the years by several authors (e.g., [53,54,113,121]). These are, but are not limited to: (1) the variety of uptake paths for chemical elements, uses and movement within the xylem and the trunk [53,121], (2) the variability between trees, sites and species [67,122], (3) the climate and environmental conditions potentially related to the uptake of some chemical elements [123,124] and (4) the age of the trees, structure and composition of the forest and canopy [125] and the pH of soil, which play a significant role as well [54].…”

Section: Dendrochemistry and Fire Scar Datesmentioning

confidence: 99%

Multiproxy Approach to Reconstruct the Fire History of Araucaria araucana Forests in the Nahuelbuta Coastal Range, Chile

Muñoz,

González,

Schneider-Valenzuela

et al. 2023

Forests

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Multiproxy reconstructions of fire regimes in forest ecosystems can provide a clearer understanding of past fire activity and circumvent some limitations of single proxy reconstructions. While inferring fire history from scars in trees is the most precise method to reconstruct temporal fire patterns, this method is limited in Araucaria araucana forests by rot after fire injuries, successive fires that destroy the evidence and the prohibition of sample extraction from living Araucaria trees. In this context, dendrochemical studies in Araucaria trees and charcoal analysis from sediment cores can complement and extend the time perspective of the fire history in the relictual Araucaria-Nothofagus forests of the coastal range. We used dendrochemical, fire scar and charcoal records from the Nahuelbuta Coastal Range (37.8° S; 73° W) spanning the last 1000 years to reconstruct the fire history. The results indicate that periods with higher fire activity occurred between 1400 and 1650 AD. Long-term changes in the fire regime are related to increased climate variability over the last 1000 years, and especially with the arrival of settlers to the area after 1860 CE. The most severe fire events in the Nothofagus and Araucaria forests occurred when suitable fire-prone conditions were superimposed with high human densities.

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Elemental Variability in Stems of Pinus sylvestris L.: Whether a Single Core Can Represent All the Stem

et al. 2023

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In dendrochemical studies, an analysis of wooden cores extracted from tree stems is a widely spread research method. A methodological problem is related to the method: whether a single core per tree can be representative of all the stems. The study aimed to estimate how the elemental contents are variable in the tree rings and whether the contents correlate among different cores. The cores were extracted from stems of Pinus sylvestris L., four cores per tree, according to the cardinal directions (east, west, north, south). The elemental contents (Al, Si, P, S, Cl, K, Ca, Ti, Mn, Fe, Cu, Zn, and Sr) were estimated through the X-ray fluorescent analysis facility Itrax Multiscanner (COX Analytical Systems). The agreement between the temporal series of different cores was estimated through Spearman’s correlation coefficients. It has been found that the temporal intra-tree series for almost all the studied elements do not correlate with each other. The exclusions are Ca and K which show strong consistent correlations. The source for the correlations is, however, the long-term trends from the pith to the bark. The detrending of the Ca and K series reveals some high-frequency correlations which are not consistent among the trees. At least for Scots pine, a single core is unlikely to be a reliable representative of the whole stem in the respect of elemental content. A few research directions to overcome the uncertainty has been discussed.

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Dendrochemical Challenge in Climate Science: Whether Chemical Elements in Wood Reflect the Fluctuations in Weather Parameters

Cited by 3 publications

References 23 publications

Early-Wood vs. Late-Wood in Scots Pine: Finding Stable Relationships in Elemental Distribution

Early-Wood vs. Late-Wood in Scots Pine: Finding Stable Relationships in Elemental Distribution

Multiproxy Approach to Reconstruct the Fire History of Araucaria araucana Forests in the Nahuelbuta Coastal Range, Chile

Elemental Variability in Stems of Pinus sylvestris L.: Whether a Single Core Can Represent All the Stem

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