• Title/Summary/Keyword: tree rings

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Tree-Ring Dating for Korean Traditional Furniture: A Case Study on Rice Chests (전통목가구의 연륜연대 측정: 뒤주의 사례연구)

  • Kim, Yo-Jung;Kim, Soo-Chul;Park, Won-Kyu
    • Journal of the Korea Furniture Society
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    • v.18 no.3
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    • pp.188-194
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    • 2007
  • Tree-ring dating can be used to date scientifically prehistoric timbers, historical buildings or woodcrafts. It can give a calendar year to each tree ing and produces the felling dates of logs or wood panels. In this study, we applied tree-ring dating to three rice chests, whose dates of manufacturing are unknown. According to the shape of frame, we assumed that they should be made in Cholla Province. The last rings of the woods of three rice chests were dated A.D. 1830, A.D. 1870 and A.D. 1901, respectively. Tree-ring patterns indicated that two of them were collected from Kangwon province.

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Global Warming Detected by Tree Rings from Mongolia

  • Nachin, Baatarbileg;Jacoby, Gordon C.
    • The Korean Journal of Quaternary Research
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    • v.17 no.2
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    • pp.55-61
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    • 2003
  • In the year 2000 we culminated a successful five year investigation of climate change by completing a preliminary east-west transect across Mongolia. An earlier tree-ring study at Tarvagatay Pass, Mongolia indicated unusual warming during the 20th century similar to other paleo-investigations of the northern hemisphere. This record had represented one of the few tree-ring records for central Asia. New data from several sites in western Mongolia confirmed the preliminary temperature. The highest twenty-year growth period for the composite record is from 1973-1994. The western Mongolian record was significantly correlated with the Taimyr Peninsula and two northern hemisphere temperature reconstructions reflecting large-scale temperature patterns while showing some important regional differences. These differences should prove useful for climate models. We have also developed a millennial length temperature-sensitive record at the Solongotyin Davaa site (formerly Tarvagatay Pass) using relict wood and living trees. Conspicuous features over the last 1000 years are a century scale temperature decline punctuated by the end of the Little Ice Age in the late-1800s and 20th century warming. The record also shows a cold period early in the 12th century and warm intervals late in the 10th, early in the 15th and at end of the 18th centuries. Despite a limited sample size before 900 AD, the long Solongotyin Davaa record is useful in indicating severe cold events and suggests some cold intervals nearly as severe. These tree ring series, spanning much of the circumpolar northern treeline, have been compiled to create a long-term reconstruction of the Earth's temperature over centuries. The new chronology, in addition to its value as a detailed record of Mongolian climate, provides independent corroboration for such hemispheric and global reconstructions and their indications of unusual warming during the 20th century.

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Dendrochronological Dating for the Gwanghanru Pavilion, Namwon, Korea (남원 광한루 목부재의 연륜연대 분석)

  • Park, Won-kyu;Kim, Yo-jung;Han, Sang-hyo
    • Korean Journal of Heritage: History & Science
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    • v.47 no.1
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    • pp.152-163
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    • 2014
  • In this study, Gwanghanru Pavilion (Namwon-si, Cheonbuk Province) was dated by tree rings of pines (Pinus densiflora Sieb. et Zucc., 'sonamu' in Korean). The present Gwanghanru Pavilion is composed of three parts: main, wing and entrance parts. The main part is known to have been built in 1626 and the entrance hall in 1879, but the date of construction of the wing part is still unknown. We dated a total of 55 wood samples which were replaced during the repair process in 2001~2002. Tree-ring dates indicated that both main and wing parts were built in 1626. Tree rings also revealed that the entrance hall was constructed in 1880~1881, and both main and wing parts were heavily repaired together while appending the entrance hall. In conclusion, dendrochronology, i.e., tree-ring dating, was a useful and accurate method to identify the critical dates-such as the dates of original construction, reconstruction, repairs and extensions-for the history of Korean traditional buildings.

Climate and Growth Relationship in Blue Pine (Pinus wallichiana) from the Western Himalaya, India (인도 서히말리아산 블루파인(Pinus wallichiana)의 연륜생장과 기후와의 관계)

  • Yadav, R. R.;Amalava, B.
    • The Korean Journal of Ecology
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    • v.20 no.2
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    • pp.95-102
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    • 1997
  • Ring width chronologies of blue pine (pinus wallichiana) from two mesic sites, Kanasar(2, 400 m) and Gangotri(3, 000 m), in the western Himalayan region. India were developed to understand tree growth-climate relationship and its applicability in proxy climate studies. The resoponse function analyses of the two chronologies show that the site conditions play an important role in modulating the effect of climatic variables on tree growth. Winter temperature, prior to the growth year, has been found to play positive influence on blue pine growth at both sites. Summer temperature also has very similar response except for June and August. June temperature has negative influence at the lower in contrary to at the higher site. Low August temperature favors tree growth to precipitation has been found to vary which could be due to different precipitation regime at the two sites. Winter precipitation is important for tree growth at the higher, whereas summer at the lower sits. The present study suggests that the tree ring materials of blue pine from the temperate Himalayan regions could be used to develop chronologies for the reconstruction of seasonal climatic variables.

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Species Identification and Tree-Ring Dating of the Lotus Pedestal of Amitabha Statue at Ssangbong-Temple in Hwasun, Korea (화순 쌍봉사 극락전 아미타불 연화좌대의 수종 및 연륜연대 분석)

  • Kim, Yo-Jung;Son, Byung-Hwa;Oh, Jung-Ae;Jo, Tae-Gun;Choi, Sun-Il;Park, Won-Kyu
    • Journal of the Korea Furniture Society
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    • v.23 no.1
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    • pp.95-102
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    • 2012
  • The objective of this study was to conduct the species identification and tree-ring dating of Lotus Pedestal of the Amitabha Statue at Ssangbong-Temple in Hwasun. The six wood blocks used for the Lotus Pedestal were hard pines (Pinus spp.; diploxilon) except one piece which was ginkgo (Ginkgo biloba L.). The lotus leaves surrounding the pedestal body were also made of ginkgo. Tree-ring patterns of 3 blocks were synchronized and a 133 years chronology was made. The chronology was crossdated well with the master chronology of Japanese red pine in South Korea. It dated back to A. D. 1551~1683, i.e. the last ring dated A. D. 1683. Through the estimation of the number of sapwood rings removed during carving, the felling year was calculated A. D. $1704{\pm}10$. The calligraphic writing on the Pedestal indicated that this statue was made in A. D. 1694. Therefore, the accuracy of the tree-ring dating has been proven.

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Identification of Species and Tree-Ring Dating for Coffin Woods Excavated at Yerim Site in Yesan, Chungnam, Korea (예산 예림지구 출토 목관재의 수종 및 연륜연대 분석)

  • Son, Byoung-Hwa;Lee, In-Dong;Park, Won-Kyu
    • Journal of the Korea Furniture Society
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    • v.22 no.2
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    • pp.126-131
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    • 2011
  • The purpose of this study were to analyze the species and tree-ring dates of coffin woods excavated at Yerim site in Yesan, Chungnam, Korea. We sampled 12 pieces of woods from two coffins. The species of all coffin woods were identified as red pine group, most likely, $Pinus$ $densiflora$. The last rings of both coffins were dated A.D. 1557 and A.D. 1601, respectively. The tree-ring dates indicated that the coffins were made in the late 16th and early 17th century.

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Tree-Ring Dating of Coffin Woods Excavated from Shinnae-dong in Seoul, Korea

  • Lee, Kwang-Hee;Son, Byung-Hwa;Park, Won-Kyu
    • Journal of the Korean Wood Science and Technology
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    • v.41 no.5
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    • pp.406-414
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    • 2013
  • This study aims to date wooden coffins excavated from graves in Shinnae-dong, Seoul, South Korea, using dendrochronology. The species of woods used to make the coffins were identified as Pinus densiflora S. et Z., one of the major conifers in Korea. Of 12 graves, 10 were successfully dated using various red-pine chronologies of South Korea. Due to the absence of the last-formed tree ring before felling, the number of sapwood rings, used to obtain likely cutting dates, had to be estimated. The terminus post quem for two coffins without plaster frames were AD 1548 and AD 1571, respectively. Eight coffins with plaster frames yielded estimated dates from AD 1664 to AD 1799. The tree-ring dates indicated that the coffins with plaster frames in Shinnae-dong were constructed approximately 100 years later than those without plaster frames.

Examination of Death Years and Causes by the Analysis of Growth Decline in Tree Rings of Pinus densiflora from the Euilimji Lake Park in Jecheon, Korea (제천 의림지 소나무 연륜생장 쇠퇴도 분석을 통한 고사 연도 및 원인규명 연구)

  • Seo, Jeong-Wook;Park, Won-Kyu
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.14 no.2
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    • pp.1-10
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    • 2011
  • Six pine trees (Pinus densiflora S. et Z.) at the Euilimji Lake Park in Jecheon were collected to investigate tree ages, growth decline pattern and the years of death. Tree-ring measurement was carried out using the Lintab with a resolution of 0.01mm. Tree age were 80-176 years. Cross-dating between the tree-ring series of each tree and the local chronology from Worak Mountain resulted that four and two trees died in 1998 and 1999, respectively. Three dead trees had only formed earlywood in the outermost tree ring and the others had incomplete latewood. Therefore, it was proven that the former trees died between spring and early summer, whereas the later ones died during late summer and/or autumn. The simultaneous deaths of trees suggest the insect damage and/or drought may be the crucial reason of the death, but frequent reaction woods, which were formed by leaning stem, and scars formed by physical damage may also contribute to the death.

A Study on the Historical Research of the Leading Costume in 'Seodong Tale' ('서동설화'에 등장하는 주요 인물 복식 고증)

  • Kim, Moon-Ja
    • Journal of the Korean Society of Costume
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    • v.61 no.7
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    • pp.135-151
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    • 2011
  • The purpose of this study is to research the costume styles during the Silla(新羅), and Paekje dynasty[百濟] in 'Seodong tale'. In those days, costume form, color, pattern, and ornaments played an important role in representing the differences in social status. The Methodology of this study is reviewing and researching the symbolic meaning and classifying the types of the style of the Costume in 'Seodong tale' through the antique records and tombs bequests and expressing the clothing of the appearance people in the picture. This study is about the costume styles representing the differences in social status during the Silla and Baekje dynasty in 'Seodong tale'. Sedong wore 'Heug Geon(黑巾)' and 'Yu', 'Ko(袴)'. The king of Silla, Jinpyung wore Tree and Antler-typed Diadem and 'Po(袍)' with 'GwaDae(銙帶)' and Earrings, Necklaces, Rings. The servant of Baekje wore 'Eunmhwakwansik[silver crown]' and 'Jangyu' bound the silver belt and 'Ko'. Silla Princess of the court, Seonhwa wore Feathered Trim with Conical hat, and 'Yu' bound the belt and 'SangdongChima' and Earrings, Necklaces, Bracelets, Rings. Sedong's mother's hair style was 'Eonjeunmeori' and wore 'Yu' and 'Ko'. The queen of Baeje, Seonhwa wore 'Keumhwasik[Gold crown]', and 'Po' bound the belt and Earrings, Necklaces, Bracelets.

The Relationship between Tree-Ring Growth in Pinus densiflora S. et Z. and the Corresponding Climatic Factors in Korea

  • LEE, Kwang Hee;JO, Sang Yoon;KIM, Soo Chul
    • Journal of the Korean Wood Science and Technology
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    • v.50 no.2
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    • pp.81-92
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    • 2022
  • To analyze the relationship between climatic factors (mean monthly temperature and total precipitation) and tree-ring growths of Pinus densiflora S. et Z. from National Parks (according to region) of the Korea, 20 trees were sampled from 13 National Parks. Only trees that were successfully cross-dated were used for dendrochronological analysis, and at least 11 trees were included. The tree-ring chronology of Mt. Bukhan (covering the shortest period of 1917 - 2016 [100 years]) was assessed, as well as that of Mt. Seorak (covering the longest period of 1687 - 2017 [331 years]). After cross-dating, each ring width series was double-standardized by first fitting a logarithmic curve and then a 50-year cubic spline. The relationships between climate and tree-ring growth were calculated with response function analysis. The results show a significant positive correlation between a given year's February-March temperature, May precipitation levels, and tree-ring growth. It indicates that a higher temperature in early spring and precipitation before cambium activity are important for radial growths of Pinus densiflora in the Korea.