• Journal of the Korean Geographical Society
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• v.31 no.3
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• pp.447-468
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• 1996

The peat layer was deposited on the abandoned channel of incised meander of River Banbyuncheon with 7 meter thickness on Youngyang basin. The late Quaternary environmental change on the study area was discussed based on pollen anaalysis and radiocarbon-dating from this peat. The swamp which was caused to sediment the peat, was produced by which the fan debris from the adjacent slope damed the waterflow on the abandoned channel. The peat layer contains continuous vegetational history from 60,000y.B.P. to Recent. The peat deposit was divided into two layers by the organic thin sand horizon, which was sedimented at one time and made unconformity between the lower decomposed compact peat layers and the upper fresh fiberous peat layer. As the result of the pollen analysis, both peat layers from the two boring sites, Profile YY1 and Profile YY2 were divided into five Pollenzones(Pollenzone I, II, III, IV and V) and 12 Subzones which were mainly corresponded by the AP (Arboreal Pollen)-Dominance. The two profiles have some differences on the sedimentary facies and on the pollen composition as well. Therefore these were in common with the Pollenone III, however the Pollenzone I and II existed only on the Profile YY1 and the Pollenzone IV and V existed only on the Profile YY2. The lower layer containing the Pollenzone I, II and III revealed vegetational records of Pleistocene, which was characterized as tundra-like landscape and thin forested landscapes. It represented the NAP (Non-Arboreal Pollen)-period with a plenty of Artemisia sp., Sanguisorba sp., Umbelliferae, Gramineae and Cyperaceae. However a relatively high proportion of the boreal trees with Picea sp., Pinus sp. and Betula sp. as AP was observed in the lower layer. The upper layer contained the Pollenzone IVb and V and vegetational history in Holocene which was characterized by thick forested landscape with rich tree pollen. It represented AP-period with plenty of Pinus sp. and Quercus sp. as temperate trees. The temperature fluctuation supposed from the vegetational records is as follows; the Pollenzone I(Betula-Dominance, about 57,000y.B.P.) represents relatively cold period. The Pollenzone II(EMW-Domi-nance, 57,000-43,000y.B.P.)represents relatively warm period. This period is supposed to be Interstadial, the transi-tional stage from Alt- to Mittel Wurm. The Pollenzone III(Butula-, Pinus- and Picea-Dominace in turns, 43,000-15,000y.B.P.) reproesents cold period which had been built from Mittel-to Jung Wurm. Especially the Subzone IIId represents the coldest period throughout the Pollenzone III. It is corresponds to Wurm Glacial Maximu. It is supposed that the mean temperature in July of this period was coller about 10${^\circ}$C than present. The Pollenzone IV and V represent the vegetational history of Holocene. Tilia, Quercus and Pinus were dominant in turns during this period. Subzone IVb and Pollenzone I and II at east coastal plain of Korean penninsula reported by JO(1979).

• The Korean Journal of Quaternary Research
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• v.12 no.1
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• pp.63-76
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• 1998

한반도는 산악지형이 우세하기 때문에 늪지나 호수의 발달이 불량하다. 현재 소규모 의 자연늪지는 낙동가 하류지역에 분포하며 동해안을 따라 일부 해안지역에 발달하여 있을 뿐이다. 고산지역에도 소규모의 늪지가 최근에 발견되었는데 그중에서도 무제치늪이 국내의 가장 남동쪽에 위치하고 있다. 정족산 정상부를 향하여 4개의 늪지가 차례대로 발달하여있 는데 이들의 성인은 온도차이에 의한 기계적풍화와 암석 차이에 의한 화학적 풍화적작용의 결과로 해석된다, 이들의 형성시기는 제 2늪의 습원퇴적이 가장 오래되 지층으로서 100~ 105cm 심도에서 탄소동위원소 연대측정으로 5,960$\pm$110yr BP. 의결과를 보이고 있드며 제 1늪의 습원 퇴적은 지표로부터 64~69cm 심도의 토탄층 최하부 부분에서 1,785$\pm$120yr BP. 의 연대측정 결과를 확인하였다.

• Proceedings of the KGS Conference
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• 2003.11a
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• pp.34-39
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• 2003

밀양강 중류부 충적평야의 화분분석 결과를 통하여 홀로세 후기 동안의 식생환경을 복원하고 한반도 남부지방의 농경의 기원과 확산에 대해 검토하였다. 경상남도 밀양시 산외면 금천리 단장천 충적평야에서 화분분석을 행하였다. 고고학 유적발굴을 위해 절개한 트랜치 T6(14.75-15.90m a.s.l. : 두께 1.15m)과 T9(17.00-15.60m a.s.l. : 두께 1.4m)의 노두 단면 중에서 비교적 유기질이 풍부한 실트층 및 토탄층에서 5cm등간격으로 채취하여 목본화분(AP: Arboreal Pollen)이 200개 이상이 될 때까지 검경하였다. (중략)

• The Korean Journal of Quaternary Research
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• v.24 no.1
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• pp.35-45
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• 2010

The aims of this study are to clarify the geomorphological development of a alluvial plain and discuss the vegetation environments and agriculture activities in the Wangpo-River alluvial plain at Neungsan-ri, Buyeo by analyzing geomorphological classification, sedimentary facies and age datings. The alluvial plain at Wangpo-River was formed by the influences of Geum-River with the sea-level rising during the Holocene. The basin of Wangpo-River consists of natural levees, back marsh-type alluvial plains, valley plains and hills. The natural levees by Geum-River largely distributes at the area where Wangpo-River flows to Geum-River and the alluvial plains at the middle and lower reach are the back marsh areas of Geum-River. Moreover, the area along Wangpo-River show higher contents of coarse materials and thinner peat sediments than the back marsh. The lower sandy deposits in the alluvium of Wangpo-River was formed with the influences of human in the Bronze Age during the sea level falling and the peaty deposits was formed due to the water level rising of Wangpo-River during the sea level rising in the early Iron Age.

• Korean journal of applied entomology
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• v.47 no.4
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• pp.333-336
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• 2008

During the excavation to find ancient rice seeds from the peat layer (12,500-14,800 bp based on 14 dating samples) of Soro-ri, Cheongwon-gun near Cheongju city, we found not only old rice seeds, but also other organic materials including insect fossil skeletons. Although no complete specimen was found in this study, some body parts were diagnotic enough for identifying species. Among the identified insect fossils, two species were successfully identified based on their characteristic forewing morphologies, e.g., cross-ridges on forewing. The two identified species, Plateumaris sericea and Donacia flemola or near, belong to Donaciinae in Chrysomelidae, and their larvae are known to feed on the root of wetland plants, mainly in Poaceae or Cyperaceae. Such finding proved that a wetland environment was maintained in Soro-ri at that time, and was suitable for such insects to survive. Therefore, evidence from the fossilized rice seeds, together with these insect fossils, clearly proved that the environment at that time was suitable for rice, a common Poaceae species, growing.

• The Korean Journal of Quaternary Research
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• v.12 no.1
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• pp.55-62
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• 1998

• Journal of the Korean Wood Science and Technology
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• v.27 no.2
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• pp.1-6
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• 1999

Hundred pieces of peat woods(ca. 2500 years old) were excavated in 1995 at Hyunwhari, Pyungtaek in the west-central coast of the Korea Peninsula. Among them, 63 samples representing 21 trenches were selected for the species identification. Because most peat woods were rotten by fungi for long period, only 27 samples could be identified. Due to the deteriorated structure of peat woods, all samples were embedded in PEG(polyethylene glycol 2000) and then sectioned using a rotary microtome. Major species were Alnus spp.(55.6%), Fraxinus spp.(33.3%) and Quercus (Lepidobalanus)(11.1%). No conifers were found. The species composition indicates that the sample region was a swamp or lakeside, which appeared to be formed because of the sea-level rise after last-glacial period.

• Journal of Conservation Science
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• v.23
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• pp.67-72
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• 2008

This study was conducted to examineboth the type of wood decay and the degree of degradation for the waterlogged woods (Alnus spp. and Fraxinus spp., about 5,700~5,900 year old), which were excavated at Higokri, Pyungteak in the west-coastal region of Korea. The transmission electron microscope (TEM) observation indicated the degradations by soft rot and bacteria were common in both woods. Erosion bacteria attacked gradually and irregularly from the secondary layer to compound middle lamella and often produced the cavity which was similar to soft-rot cavity but much smaller ones. Tunneling bacteria decomposed mainly $S_2$ layer. Though of highly degraded walls, the cells almost kept the original form with intact lignin-rich middle lamella, which were saturated by water. No marine borer's trace indicated that the sealine rise in the western coast of Korean peninsula during the climate optimum period in the holocene might not be high enough to submerge the Higokri area which locates about 2 km from the present sealine.

• Proceedings of the Korean Society of Crop Science Conference
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• 1999.05a
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• pp.120-121
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• 1999

1. 충북대학교 박물관팀이 충북 청원군 옥산면 소로리에서 구석기시대 유적지를 발굴하는 과정에서 13,010BP로 추정되는 상위토탄층에서 고대형 탄화벼가 출토되었고 36,350BP 이전으로 추정되는 하위토탄층에서 유사벼가 출토되었다. 2. 고대형벼는 11개의 단립형과 1개의 장립형이었다. 장립형벼는 영피표면에 융모가 없고 황금색인(Smootn and gold-hull) 세장립이었다. 그 크기는 지금의 세장한 indica 와 비슷하였다. 3. 유사벼는 영표면에 융모가 있고 깍지(莢)모양으로 되어있는 것(유사벼-1)과 영표면에 융모없이 미끈한것(유사벼-2)으로 2종류가 있었다. 이들의 크기는 모두 벼알과 비슷하였다. 4. DNA 분석결과 고대벼는 지금의 재배종 japonica 나 indica 와는 차이를 보였다. 장립종은 시료가 부족하여 분석하지 못하였다. 유사벼-1은 재배종 벼와 약간 유사한점이 보였으나 유사벼-2는 유사점이 없었다. 5. 고대벼에서는 쌍봉돌기(Bi-peak protuberences)가 있었으나 유사벼-1 과 유사벼-2에서는 이것이 없었다.

• Journal of the Korean Geographical Society
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• v.34 no.4
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• pp.371-384
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• 1999

디퓨젼 공식 모형은 한국 하천의 중.상류 지역의 하안 단구의 단구애와 같은 삭박 사면에 대한 연대 측정에 유용하게 적용될 수 있다. 지형 연대 측정 방법은 최대 사면각, 사면의 높이 등과 같은 사면단면에 대한 측정된 자료를 사용하는 보조적 연대 측정법의 하나이다. 토탄층에 대한 탄소연대측정법 또는 화분분석과 같은 방법으로 잘 통제되어진 연대를 이 모형에 적용하여 생성 연대를 모르는 다른 사면의 연대를 추정하는데 사용될수 있다. 적용사례로 경북 영양의 연지 저위단구에서 구해진 연대값 6ka를 이용하여, 최대 사면각과 사면의 높이간의 모의실험을 통해 연지 단구의 저위면/중위면 사이의 단구애 상의 삭박률 100 10-4m2/yr.을 구할수 있었다. 이 삭박률을 영춘 단구의 저위면/중위면 사이의 단구애의최대 사면각과 사면 연대간의 모의실험에 적용하여 영춘 단구의 저위면/중위면 사이의 단구애의 형성 시기를 약 37,000년 전으로 구할 수 있었다. 그러나 보다 정밀한 값을 얻기 위해서는 남한강 중.상류의 단구 지역에 대한 적절한 사면 측정 자료가 요구된다.