Establishing Local Master Ring-Width Chronologies and Their Utilization for Estimating The Age of Big Old Trees

Oh, Jung-Ae; Seo, Jeong‐Wook; Kim, Byung-Ro

doi:10.5658/wood.2017.45.1.85

Cited by 4 publications

(10 citation statements)

References 2 publications

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“…The annual ring of each specimen was measured with an accuracy of 0.01 mm using an annual ring width meter (LINTAB) attached to a computer. When the annual ring width is measured, if decay, missing ring, false ring, or discontinuous ring occurs, it is impossible to give an accurate growth year to the observed annual ring, making it difficult to conduct an accurate dating (Oh et al, 2017). Therefore, the annual ring width was measured two or more times according to the direction of each material, and missing and false ring were was used, and graph comparison method (graphic method) and statistical comparison method (t value using correlation coefficient, G value using sign test (gleichläufigkeit)) were used.…”

Section: Tree Species and Annual Ring Datingmentioning

confidence: 99%

“…한국 산림의 다수를 차지하고 있는 소나무는 한국에서 가장 선호되는 건축 자재이었으며 (Park and Lee, 2007) (Park and Lee, 2009), 서울 신내동 유적에서 확인된 10기의 관재들은 회곽의 사용 유무를 통해 회곽묘가 사용된 시기를 16세기와 17세기 사이인 것으로 확인하였으며 (Lee, 2009), 남양주 호평유적에 서 출토된 2기의 합장묘에 대한 연륜연대 분석을 통해 매장시기의 전•후 관계를 확인하였다 (Park et al, 2006a). 또한 전주 마전 유적에서 출토된 목관의 내•외관 목부재들은 동일시기에 벌채된 것으로 확인하였다 (Park et al, 2006b) (Oh et al, 2017). 따라서 부재별로 방향에 따라 2회 이상 연륜폭 측정하여 위연륜과 실연륜을 체크하였다.…”

Section: Appendix (Korean Version)unclassified

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Analysis and Tree-Ring Dating of Wooden Coffins Excavated from Incheon Sipjeong-Dong Site

Lee¹,

Lee²,

Kang³

et al. 2021

Journal of the Korean Wood Science and Technology

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This study aimed to conduct tree-ring dating and analysis of the materials used for the wooden coffins excavated from the ruins of Sipjeong-dong, Incheon. The tree species for the 10 wooden coffin materials was identified as pine. For accurate tree-ring measurement, the cross section was polished using sandpaper. The annual ring width was measured with an accuracy of 0.01 mm. Since the five materials were consistent with each other in dendrochronology, a representative annual ring chronology of 83 years was prepared. The prepared representative annual ring chronology was compared with the standard annual ring chronology, and the outermost ring of the wooden coffin was confirmed to correspond to the year 1575, suggesting that the wooden coffin was produced in the late 16th century. In addition, microscopic observation and FT-IR analysis revealed that the fibers attached to the surface of the wooden coffin were fibroin (Silk), and infrared spectroscopy (FT-IR) and Py-GC/MS analysis showed that the paint left on the surface of the wooden coffin was lacquer.

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Section: Tree Species and Annual Ring Datingmentioning

confidence: 99%

Section: Appendix (Korean Version)unclassified

Analysis and Tree-Ring Dating of Wooden Coffins Excavated from Incheon Sipjeong-Dong Site

Lee¹,

Lee²,

Kang³

et al. 2021

Journal of the Korean Wood Science and Technology

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“…were compared with the local master chronologies of Zelkova serrata and Pinus densiflora, established by Oh et al (2017), to develop a time series using tree rings near the pith.…”

Section: Comparison Of the Ring-width Time Series By Resistograph With The Local Master Chronologiesmentioning

confidence: 99%

“…In the previous study (Oh et al, 2017), it was suggested that the most suitable needle speed to determine tree-ring boundaries in the measurement data was 1500 r/min for all the experimental tree species (Pinus koraiensis, Larix kaempferi, Pseudotsuga menziesii, Abies holophylla and Zelkova serrata), which was done using disks. In the current study, although The feed speeds should be set differently depending on the density difference of the species (Frank, 1994).…”

Section: Feed and Needle Speedsmentioning

confidence: 99%

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Determinate the Number of Growth Rings Using Resistograph with Tree-Ring Chronology to Investigate Ages of Big Old Trees

Oh¹,

Seo²,

Kim³

2019

Journal of the Korean Wood Science and Technology

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To verify the possibility of using resistograph to estimate the age of big old living trees, we selected three Zelkova serrata and seven Pinus densiflora in Goesan. The mean diameters at breast height of Z. serrata and P. densiflora were 102 (92-116) cm and 80 (65-110) cm, respectively. The heights measured from the ground using a resistograph ranged at 1.2-4.3 m and 0.6-1.1 m for Z. serrata and P. Densiflora, respectively. The most appropriate needle speed to determine tree-ring boundaries for measuring ring width was 1500 r/min for both tree species. Alternatively, the suitable feed speeds for Z. serrata and P. densiflora were 50 cm/min and 150 cm/min, respectively. From the measured data, the mean numbers of tree rings of Z. serrata and P. densiflora were 57 (43-68) and 104 (93-124), respectively, and the mean tree-ring widths were 4.27 mm (3.18-5.09 mm) and 2.93 mm (2.32-3.34 mm), respectively. A comparison between the time series of tree-ring widths by resistograph and that from the local master chronologies tallied for the heartwood part. Finally, this study showed that resistograph can be used to estimate tree ages when a local master chronology is available.

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Verifying the Possibility of Investigating Tree Ages Using Resistograph

Oh¹,

Seo²,

Kim³

2019

Journal of the Korean Wood Science and Technology

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This study aims to determine the ideal feed speed of a resistograph to evaluate the number of tree rings in several tree species. The needle speed was fixed at 1,500 r/min. Herein, various tree species, such as Pseudotsuga menziesii, Pinus koraiensis, Abies holophylla, and Zelkova serrata, were considered for experiments. Results showed that the most proper feed speed for Zelkova serrata, Larix kaempferi, Pseudotsuga menziesii, Abies holophylla, and Pinus koraiensis was 75, 100, 100, 150, and 175 cm/min, respectively. However, in all the cases, the electric resistance values of tree ring narrower than 1 mm were not suitable for determining tree-ring boundaries. Upon comparing the inter-annual time series of ring widths and electric resistance values of resistograph, a meaningful synchronization was verified. If resistograph would be improved to the extent that it can measure tree rings narrower than 1 mm, it can replace the conventional method used for counting the number of tree rings in the increment cores. Additionally, it can also be used to investigate the tree growth.

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Establishing Local Master Ring-Width Chronologies and Their Utilization for Estimating The Age of Big Old Trees

Cited by 4 publications

References 2 publications

Analysis and Tree-Ring Dating of Wooden Coffins Excavated from Incheon Sipjeong-Dong Site

Analysis and Tree-Ring Dating of Wooden Coffins Excavated from Incheon Sipjeong-Dong Site

Determinate the Number of Growth Rings Using Resistograph with Tree-Ring Chronology to Investigate Ages of Big Old Trees

Verifying the Possibility of Investigating Tree Ages Using Resistograph

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