Age and Growth Assessment of Trees by Radiocarbon Dating

A special issue of Forests (ISSN 1999-4907). This special issue belongs to the section "Forest Ecology and Management".

Deadline for manuscript submissions: closed (20 July 2023) | Viewed by 1220

Special Issue Editors


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Guest Editor
1. Northern Virginia Community College, Department of Mathematics Science and Engineering, 5000 Dawes Av., Alexandria, VA 22311-5097, USA
2. Genesis Sustainable Future Ltd., 33 Rakoczi St., H-3950 Sarospatak, Hungary
Interests: radiocarbon dating; growth dynamics; tree structure; dendrochronology

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Guest Editor
Genesis Sustainable Future Ltd., 33 Rakoczi St., H-3950 Sarospatak, Hungary
Interests: astrobiology; sustainability; environmental and agriculture

Special Issue Information

Dear Colleagues,

Age determination and growth assessment of landmark trees may clarify the history of remote areas, for which few written records are available. 

Radiocarbon dating is a trustworthy method, yielding accurate age results and can be more reliable than ring counting. This statement applies to trees without a continuous sequence of growth rings in their trunk, or trees with growth rings that are not strictly annual or seasonal, or trees without well-defined rings. Examples include palm trees, for which annual growth rings are absent, mesquite (Prosopis glandulosa), which exhibits very faint rings, and African baobabs (Adansonia digitata L.), which may have indistinct or even missing growth rings. Therefore, age determination by radiocarbon dating represents an asset for investigating tree development and age rates, and for uncovering information about previous and present climates. The results ultimately enable climatic reconstructions.

Because of its high costs, radiocarbon dating of trees has not been extensively used. Nonetheless, several investigations were conducted on different tropical species to determine their age and/or growth rates, or to check and correct their ring counting records. Initially, this research was limited to dating wood samples collected from the remains of dead specimens, which, particularly in tropical regions, decay very fast. The introduction of new methodologies allowed us to extend the investigation to standing, live specimens.

We encourage submissions of manuscripts with significant novelty content; this may refer to new approaches to radiocarbon dating of trees, novel sample preparation or dating methodology, or previously not disclosed interpretations of experimental findings.

Research papers, research notes, opinion letters to the Editor, and review papers are welcome. To avoid overlapping of topics chosen for review papers, prior to writing a review, please request approval from the Editor by sending the intended title and a short (0.5–1.0 pages long) overview of the paper.

Prof. Dr. Daniel A. Lowy
Dr. Bence Mátyás
Guest Editors

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Keywords

  • radiocarbon dating
  • growth dynamics
  • tree structure
  • tree architecture
  • extinction of tree specimens
  • effect of climate change on forestry
  • investigation of landmark trees
  • dendrochronology

Published Papers (1 paper)

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Research

17 pages, 3523 KiB  
Article
A 900-Year Isotopic Proxy Rainfall Record from Northeastern Botswana
by Roxana T. Patrut, Adrian Patrut, Grant Hall, Christiaan W. Winterbach, Iain Robertson, Ileana Andreea Ratiu, Victor Bocos-Bintintan, Laszlo Rakosy and Stephan Woodborne
Forests 2023, 14(9), 1917; https://doi.org/10.3390/f14091917 - 20 Sep 2023
Viewed by 883
Abstract
A high-resolution climate archive was reconstructed based on carbon isotope analysis and radiocarbon dating of the Chapman baobab in northeastern Botswana. The Chapman baobab, which exhibited an open ring-shaped structure composed of six stems, collapsed in January 2016 during an intense El Niño [...] Read more.
A high-resolution climate archive was reconstructed based on carbon isotope analysis and radiocarbon dating of the Chapman baobab in northeastern Botswana. The Chapman baobab, which exhibited an open ring-shaped structure composed of six stems, collapsed in January 2016 during an intense El Niño event. Two samples belonging to the oldest stems were investigated in order to obtain a proxy rainfall record, which provides insight into the precipitation regime over the last millennium, evincing centennial and decadal scale variability. The results indicate that the Medieval Warm Period was marked by relatively stable precipitation, whereas rainfall variability and drought frequency increased during the Little Ice Age. The investigated area has experienced both wetter and drier conditions in the past. The wettest conditions of the last millennium were registered before 1450 while the driest period occurred in 1835. For southern Africa, inter-annual rainfall variability is mainly associated with sea surface temperatures in the Agulhas Current core region, which determine the east–west displacement of tropical temperate troughs. Previous studies suggested that positive sea surface temperature anomalies in the Mozambique Channel led to an eastward movement of the troughs but the Chapman record demonstrates a westward displacement in the past, causing drought in northeastern South Africa and wetter conditions in the central part of southern Africa. The positive rainfall correlation with SST anomalies reversed after 1900, causing a gradual decrease in precipitation and confirming the current aridity trend for Botswana. The results contribute to a better understanding of the past climate of southern Africa for which paleoclimate reconstructions remain scarce. Full article
(This article belongs to the Special Issue Age and Growth Assessment of Trees by Radiocarbon Dating)
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