• Journal of the Korean Wood Science and Technology
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• 제45권1호
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• pp.85-95
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• 2017

본 연구는 연륜연대학적 방법을 이용하여 노거수 수령의 정확한 추정을 위해 수행되었다. 연구지역은 충청북도 괴산군(CBGS), 전라남도 구례군(JNGR), 경상북도 울진군(GBUJ)이며, 수종은 각 지역의 보호수로 지정된 느티나무와 소나무로 하였다. CBGS, JNGR, GBUJ에서 채취한 느티나무는 각각 12, 8, 6본이며, 소나무는 각각 10, 3, 9본이다. 시료(생장편)는 생장추(직경 5.2 mm)를 이용하여 채취하였다. 정확한 연륜측정을 위해 느티나무는 활주식 마이크로톰으로 횡단면을 절삭하였으며, 소나무는 사포를 이용하여 횡단면을 연마하였다. 연륜폭은 이용하여 0.01 mm 정확도로 측정하였다. 느티나무의 경우 CBGS와 GBUJ에서 203 (1813~2015)년의 연륜연대기가 작성되었으며, JNGR에서는 175 (1841~2015)년의 연륜연대기가 성공적으로 작성되었다. 소나무의 경우 CBGS, JNGR, GBUJ에서 각각 154(1862~2015)년, 175 (1841~2015)년, 250 (1776~2015)년의 연륜연대기가 성공적으로 작성되었다. 느티나무와 소나무의 지역별 대표연륜연대기를 상호 비교한 결과 대부분 낮은 t 값과 Glk 값을 보여 대표연륜연대기 상호간 일치도가 낮은 것으로 확인되었다. 최근 50년 평균 기온과 강수량 분포도를 지역별 대표연륜연대기와 비교한 결과, 지역별 대표 연륜연대기 패턴은 온도보다 강수량에 의해 결정되는 것이 확인되었다. 따라서 향후 연륜연대학적 방법을 이용한 정확한 수령추정을 위해선 강수량이 고려된 지역별 대표연륜연대기가 준비되어야 할 것이다.

• Journal of the Korean Wood Science and Technology
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• 제45권5호
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• pp.661-670
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• 2017

지리산 아고산대 주요 침엽수(주목, 잣나무, 구상나무)와 신갈나무를 이용하여 50년간의 산소동위원소연대기(1966~2015)를 작성하였다. 산소동위원소연대기 작성은 크로스데이팅(cross-dating) 결과가 우수한 4본을 각 수종에서 선발하여 실시하였다. 동일 수종 내 임목 간 산소동위원소연대기의 상관분석 결과 모두 유의성(p < 0.001) 높은 상관이 있는 것으로 확인되었으며, EPS도 0.85 이상이었다. 동일 수종 내 임목 간 상관분석뿐만 아니라 수종간 상관분석에서도 유의성(p < 0.001) 높은 상관관계가 확인되었다. 기후요소(강수량, 기온)와 산소동위원소와의 관계를 조사하기 위한 반응함수 분석에서 주목은 당년 5월 강수량과 유의성 있는 부의 상관을 보였으며, 구상나무는 4월 강수량과 유의성 있는 부의 상관을 보였다. 향후 주목과 구상나무에 대한 장기간의 산소동위원소연대기가 작성된다면 과거 측정하지 못한 장기간의 4월과 5월 강수량 복원이 가능할 것이다.

• 한국문화재보존과학회:학술대회논문집
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• 한국문화재보존과학회 2005년도 제22회 학술대회 발표 논문집
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• pp.300-305
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• 2005

Tree-ring chronologies can be used to date historical buildings and furniture by matching them with the chronologies of living trees or previously dated samples. Tree-ring dating gives a calender year to each tree ring and produces the felling dates of logs or woods which had been used for buildings. In Korea, several chronologies of Japanese red pine(Pinus densiflora Sieb. et Zucc.,'sonamu' in Korean), a major species for the wooden building materials, have been developed and used for dating historical buildings. Daejojeon of Changduck Palace is known to be reconstructed in A.D. 1920 after burned-out in A.D. 1917. Instead of new woods, Daejojeon was reconstructed by reusing the woods of Kyotaejeon in Kyungbok Palace. We sampled total of 26 wood samples which were replaced during the repair process of Daejojeon in 1995. Felling dates of the samples were determined by the dendrochronological crossdating method. Crossdating method employs graphic comparison of the master patterns (ring-width plots of living trees or known dates) with those of the sample chronologies of unknown dates. The cutting dates of Daejojeon woods were divided in two groups. One was the late 1860s and the other 1880s. The results confirmed that Kyotaejeon was reconstruced first in the A.D 1860s and then in late 1880s after burning out in 1876.

• 건축역사연구
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• 제12권3호
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• pp.53-63
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• 2003

Tree-ring chronologies can be used to date historical buildings by matching them with the chronologies of living trees or previously dated samples. Tree-ring dating gives a calendar year to each tree ring and produces the felling dates of logs or woods which had been used for buildings. In Korea, several chronologies of Japanese red pine(Pinus densiflora Sieb. et Zucc., 'sonamu' in Korean), a major species for the wooden building materials, have been developed and used for dating historical buildings. In this study, Tongmyungjeon Hall of Changkyung Palace in Seoul was dated by tree rings. The present Tongmyungjeon Hall was known to be reconstructed in A.D. 1834 after burned-out in A.D. 1790. We sampled total of 122 wood samples which were replaced during the repair process in 2002-2003. Felling dates of the samples were determined by the dendrochronological crossdating method. Crossdating method employs graphic comparison of the master patterns (ring-width chronologies of known dates) with those of the sample chronologies of unknown dates. Tree-ring dates confirmed that the reconstruction of 1834 utilized second-handed timbers as well as fresh-cut ones. The felling dates of wooden floor frames were mostly A.D. 1913, indicating the 'Ondol' floors were changed to the wooden floors around 1914 when the Japanese rulers brutally destroyed the royal Korean Palaces and transformed palace buildings to their offices or exhibition halls after occupying Korea in 1910. This study proved that tree-ring dating was a useful and accurate method to identify the critical dates for the history of Korean traditional buildings.

• The Korean Journal of Ecology
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• 제20권2호
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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.

• 한국제4기학회지
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• 제21권1호
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• pp.15-26
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• 2007

A wide tree-ring data network from Western Himalayan region as well as from Central and Peninsular India have been established by the Indian Institute of Tropical Meteorology (IITM), Pune, India. This includes several ring width and density chronologies of Himalayan conifers (Pinus, Picea, Cedrus, Abies)covering entire area of Western Himalaya and teak (Tectona grandis L.F.) from central and peninsular India. Many of these chronologies go back to $15^{th}$ century. Tree-ring based reconstructed pre-monsoon (March-April-May) summer climate of Western Himalaya do not show any significant increasing or decreasing trend since past several centuries. High altitude tree-ring chronologies near tree line-glacier boundary are sensitive to the winter temperature. Unprecedented higher growth in recent decades is closely associated with the warming trend over the Himalayan region. Dendroclimatic analysis of teak (Tectona grandis) from Central and Peninsular India show significant relationship with pre-monsoon and monsoon climate. Moisture index over the region indicates strong association with tree-ring variations rather than the direct influence of rainfall. It is evident that, two to three consecutive good monsoon years are capable of maintaining normal or above normal tree growth, even though the following year is low precipitation year.

• Journal of the Korean Wood Science and Technology
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• 제45권1호
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• pp.72-84
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• 2017

본 연구는 국내 속리산 참나무류 도관내강면적연대기를 작성하고, 작성된 연대기가 기후프록시로써의 활용 가능성이 있는지 확인하기 위해 수행되었다. 도관내강면적연대기 작성을 위해 3가지 측정 방법이 이용되었다. 방법 1과 2는 도관내강면적이 각각 $6,000{\mu}m^2$ (MVA-60)와 $7,500{\mu}m^2$ (MVA-75) 이상인 것만 이용하여 평균값으로 연대기를 작성하는 것이고, 방법 3은 각 연륜에서 가장 큰 도관내강면적(MAX)만을 이용하여 연대기를 작성하는 것이다. MVA-60과 MVA-75는 전년도 11월부터 당년 1월까지인 겨울철 강수량과 유의성에 근접한 정의 상관을 나타냈으나, MAX는 전년도 11월에 대해서만 유의성 있는 정의 상관을 나타냈다. 본 연구결과를 근거로 국내 참나무류의 도관내강면적은 연륜기후학 분야에서 기후프록시로써 활용이 가능함이 확인되었다.

• 한국제4기학회지
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• 제17권2호
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• pp.157-159
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• 2003

Much of northern Asia is lacking in high-resolution palaeoclimatic data coverage. This vast region thus represents a sizeable gap in data sets used to reconstruct hemispheric-scale temperature trends for the past millennium. To improve coverage, we present a regional-scale composite of four tree-ring width records of Siberian pine and Siberian larch from temperature-sensitive alpine timber-line sites in Mongolia. The chronologies load closely in principal components analysis (PCA) with the first eigenvector accounting for over 53% of the variance from ad 1450 to 1998. The 20-year interval from 1974 to 1993 is the highest such growth period in this composite record, and 17 of the 20 highest growth years have occurred since 1946. Thus these trees, unlike those recently described at some northern sites, do not appear to have lost their temperature sensitivity, and suggest that recent decades have been some of the warmest in the past 500 years for this region. There are, however, comparable periods of inferred, local warmth for individual sites, e.g., in 1520-1580 and 1760-1790. The percent common variance between chronologies has increased through time and is highest (66.1%) in the present century. Although there are obvious differences among the individual chronologies, this result suggests a coherent signal which we consider to be related to temperature. The PCA scores show trends which strongly resemble those seen in recent temperature reconstructions for the Northern Hemisphere, very few of which included representation from Eurasia east of the Ural Mountains. The Mongolia series therefore provides independent corroboration for these reconstructions and their indications of unusual wanning during the twentieth century.

• 한국제4기학회지
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• 제17권2호
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• pp.117-122
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• 2003

This study is conducted to examine the woods that were excavated at Jangdo Island. The Jangdo site is located in a small island some 180 meters away from the main island of Wando, Jeollanam-do in southern Korea. This site is known as Cheong-Hea Jin fort for the marine King Jang Bogo during the early 9$^{th}$ century. Total of 101 specimens were collected in three groups； small-size piles, log fences (Mok-check) and logs from a well. The species of the group of piles consisted of Quercus spp. (43%), Pinus densiflora (29%), Pinus koraiensis (5%), Alnus japonica (3%), Fraxinus spp. (3%), Styrax obassia (3%), Juglans spp. (2%), Zelkova serrata (2%), Platycarya strobilacea (2%), Celtis spp. (2%), Torreya nucifera (2%), Quercus myrsinaefolia (2%), and Cinnamomum spp. (2%). The species of Mok-check and logs from the well were identified as all Pinus densiflora. The species composition indicated that the climate around A. D. 9th-10th century in southern Korea was similar to the present.. The wooden fences were also examined for tree-ring analysis. The ages of woods were 50∼60 years. We made two site chronologies. The chronologies indicated that southeastern and southwestern fences were repaired frequently. The results could not give the absolute dates due to lack of reference chronologies in this period.

• 한국제4기학회지
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• 제15권1호
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• pp.53-61
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• 2001

본 연구에서는 엘니뇨-남방진동(ENSO)이 한반도 중부지역의 수목 생장에 미친 영향을 조사하기 위하여 잣나무, 소나무, 주목을 대상으로 연륜분석을 실시하였다. 잣나무와 소나무는 설악산에서 각각 4개, 7개 지역에서 채취하였으며, 주목은 소백산의 1개 지역에서 채취하였다. 연륜 생장과 월 평균기온과의 상관관계를 구한 결과, 설악산 잣나무와 소백산 주목은 대체적으로 기온과 양의 상관관계를 갖는 것으로 나타났으며, 설악산 소나무는 기온과 음의 상관관계를 갖는 것으로 나타났다. 연륜생장과 월별 남방진동지수(SOI)와의 상관관계를 구한 결과, 잣나무의 경우는 고도상 생육하한선인 설악산 한계령 하부 지역에서 4월 SOI와 유의한 음의 상관관계를 나타내었으나, 나머지 지역 잣나무는 모두 유의성이 인정되지 않았다. 소나무의 경우는 백담산장 지역에서 생육전년도 8월과 9월 SOI와 연륜생장이 유의한 양의 상관관계를 나타내었으나 고지대에 자라는 지역의 소나무는 모두 상관이 인정되지 않았다. 엘니뇨가 발생하면 중부지역의 생육하한선에 자라는 잣나무는 생장이 양호해지는 반면에 저지대에 자라는 소나무의 경우 생장이 저하되는 것으로 해석된다.