• Title/Summary/Keyword: 탄소.질소 안정동위원소

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Inferring Animal Husbandry Practice in the Baekje Period using Stable Isotope Analysis of Animal Bones from the Pungnaptoseong Fortress (풍납토성 출토 동물뼈의 탄소와 질소 안정동위원소 분석을 통해 본 백제시대의 가축사육 양상)

  • Choe, Hyeon Goo;Shin, Ji Young;Han, Ji Sun
    • Journal of Conservation Science
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    • v.32 no.2
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    • pp.179-188
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    • 2016
  • This paper presents a new information on animal husbandry practice in the Baekje period using stable isotope analysis of 17 animal bones excavated from the Pungnaptoseong Fortress. Stable carbon isotope evidence implies that wild animals such as deer and pigs had mainly $C_3$-based diet whereas domestic cattle and horses might have consumed more $C_4$ plants. In addition, we propose one potential that domestic pigs show higher nitrogen isotope values in comparison with wild boar because they were possibly fed by humans.

Stable Isotopic Reconstructions of Diets in Joseon Dynasty Using Human Remains from Myeongam-ri Site, Asan (조선시대 회곽묘 출토 인골의 안정동위원소 분석을 통한 아산 명암리 피장자의 식생활 복원)

  • Kang, Soyeong;Kim, Yun-Ji;Cho, Eun Min;Kim, Sue Hoon
    • Korean Journal of Heritage: History & Science
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    • v.49 no.4
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    • pp.38-51
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    • 2016
  • This study reports on human dietary reconstruction of Joseon Dynasty using stable isotope analysis. The stable carbon and nitrogen isotope values were measured of bone collagen extracted from 25 human bones from archaeological site in Myeongam-ri, Asan. Average values of ${\delta}^{13}C$ and ${\delta}^{15}N$ are $-19.7{\pm}0.5$‰(n=23) and $9.6{\pm}1.1$‰(n=23), respectively. The isotopic data indicates that Myeongam-ri individuals consumed $C_3$ plants mainly and assumed of dietary resourced from a terrestrial animal protein. Previous isotopic studies of the Joseon era suggested that dietary composition of Joseon population was not influenced by region and burial type. Also comparison of the isotopic results of male and female from double burials showed sex-dependent dietary patterns among individuals living in the same circumstances.

Palaeodietary Reconstruction of 6th Century Naju Yeongdong-ri People Recorded in Stable Carbon and Nitrogen Isotope Analysis of Human Bone Collagen (뼈 콜라겐의 탄소와 질소 안정동위원소에 기록된 6세기대 나주 영동리 고분군 피장자 집단의 식생활 양상)

  • Choe, Hyeon Goo;Shin, Ji Young
    • Journal of Conservation Science
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    • v.33 no.6
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    • pp.533-539
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    • 2017
  • Stable carbon and nitrogen isotope results recorded in human bone reflects palaeodiet, nutrition, subsistence and palaeoenvironment. We analyzed the remains of the Naju Yeongdong-ri people, who live at around $6^{th}$ century, excavated from stone chambers and stone-lined tombs. The following results of the analysis of stable carbon and nitrogen isotopes were obtained: ${\delta}^{13}C=-19.5{\pm}0.7$‰, ${\delta}^{15}N=9.6{\pm}0.7$‰, (n=9). The value for stable carbon isotopes indicates that the Naju Yeongdong-ri people had a largely $C_3$-based diet such as rice, barley, and beans. On the other hand, the value for stable nitrogen isotopes reflect the consumption of terrestrial animal protein. This study presents new information on the dietary patterns of the Naju Yeongdong-ri people, whose tombs were similar to the Baekje tomb style and their burial type was much like the one followed by the indigenous people of the Yeongsan river basin.

Determination of the Origin of Particulate Organic Matter at the Estuary of Youngsan River using Stable Isotope Ratios (${\delta}^{13}C$, ${\delta}^{15}N$) (탄소 및 질소 안정동위원소 비를 이용한 영산강하구역 유기물 기원 추정 연구)

  • Lee, Yeon-Jung;Jeong, Byung-Kwan;Shin, Yong-Sik;Kim, Sung-Hwan;Shin, Kyung-Hoon
    • Korean Journal of Ecology and Environment
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    • v.46 no.2
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    • pp.175-184
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    • 2013
  • Organic carbon and total nitrogen stable isotope ratios of suspended materials were determined at 3 stations (from Mongtan Bridge to Youngsan river estuary barrage) (n=6, each) from November 2008 to August 2009, in order to understand the origin of particulate organic matter at the Estuary of Youngsan River. Allochthonous organic matter, ammonia-N and silicate were increased after heavy rain (in August). Carbon isotope ratios were significantly different between stations in November and August, and it was possible to determine the origin of organic matter. The heavier nitrogen isotope ratios, as well as higher phosphate concentrations, were found in November than other sampling times. Livestock wastewater and farmland input was likely the main causes of these high values. In addition, YS3 station, the nearest site to estuary barrage, appears to be affected by a substantial amount of livestock wastewater and farmland input, considering that nitrogen isotope ratios were heavier than those at the upper sites. These results suggest that the analysis of stable isotope ratios is a simple but useful tool for the determination of organic matter origin in aquatic environments.

Isotopic palaeodiet studies of human bone from Gyeongju Donggung Palace and Wolji pond site (pond No.3), Goryeo period (경주 동궁과 월지 3호 우물 출토 옛사람 뼈의 동위원소에 기록된 고려시대 식생활 양상)

  • Choe, Hyeon Goo;Shin, Ji Young
    • Analytical Science and Technology
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    • v.32 no.6
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    • pp.262-270
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    • 2019
  • The stable isotopic composition of bone collagen plays an important role in reconstructing palaeodiet, nutrition, palaeoenvironment and their lifestyle. This is the first case in extracting palaeodietary information and breastfeeding pattern of Goryeo people using stable isotope analysis due to the lack of human remains in this period. We analyzed human bone collagen excavated from Gyeongju Donggung palace and Wolji pond No.3. The average values of δ13C and δ15N are as follows: (δ13C(‰) = -19.5 ± 0.9‰, δ15N(‰) = 11.1 ± 1.1 ‰, (n = 4). Stable carbon isotope values shows a mainly C3 based diet such as rice and barley. Stable nitrogen isotope results implies the protein sources attributed to terrestrial animals. There are various age groups in this study, which are adult, child and infant. Two individuals within early childhood age ranges (< 3 years) shows more elevated δ15N values than that of adult and this result implies the continuation of breastfeeding in this group until the age of 3. The results provide new insight into the breastfeeding pattern of Goryeo people, where breastfeeding and weaning practices have important implication for fertility, population dynamics, migration pattern and disease.

Unveiling dietary lifestyle of a Joseon-era mummy by extracting isotopic information from hair and bone (조선시대 회곽묘 출토 미이라의 안정동위원소 분석으로 생애 주기에 따른 식생활 변화 추적)

  • Kang, Da Young;Shin, Ji Young
    • Analytical Science and Technology
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    • v.25 no.5
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    • pp.300-306
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    • 2012
  • This study reports the stable carbon and nitrogen isotope of mummy, the preserved human time capsule from Joseon Dynasty. The stable isotopic composition of biological tissue is expected to be a direct and constant function of diet because the stable isotope ratios do not decay or change in abundance through time. Over the past three decades, stable carbon and nitrogen isotope analysis has been extensively applied for archaeological topics. However, this is the first case in Korean mummy to extract palaeodietary information using stable isotope analysis. We extracted isotopic information from bone collagen and hair keratin, which reflects the lifetime average diet and short-term diet, respectively. The average values of ${\delta}^{13}C$ and ${\delta}^{15}N$ values are -19.0‰ and 11.4‰ (bone collagen), and -21.3‰ and 14.3‰ (hair keratin). Stable carbon isotope shows a mainly $C_3$-based diet from cradle to grave. On the other hand, there is significant difference in stable nitrogen isotope which implies a relatively enriched diet before death. We expect this study opens up a potential to understand the palaeodietary lifestyle in Joseon Dynasty.

Food-Web Structures in the Lower Trophic Levels of the Korean Seas (East Sea, West Sea, South Sea, and East China Sea) during the Summer Season: Using Carbon and Nitrogen Stable Isotopes (하계 한반도 해역(동해, 서해, 남해 및 동중국해)의 하위영양단계 먹이망 구조 : 탄소 및 질소 안정동위원소 활용)

  • Min, Jun-Oh;Lee, Chang-Hwa;Youn, Seok-Hyun
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.26 no.5
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    • pp.493-505
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    • 2020
  • Food web structures in the lower trophic levels of the seas around the Korean peninsula were investigated in August 2019 using stable isotopes. There were variable ratios of the carbon (-26.18 ~ -20.61 ‰) and nitrogen stable (5.36 ~ 15.20 ‰) isotopes in the particulate organic matter (POM). Most of the organisms ingested micro-POM as a major food source, but this varied spatially. The chaetognaths (3.40 ± 0.61) occupied the highest trophic level. The isotope mixing model showed that the proportions (13 ~ 51 %) of some organisms (i.e., copepods and euphausiids) reflected the relative contributions as major food sources for chaetognaths at each site.

Studies on Stream Ecosystem in the Bukhan River using Stable Isotopes (안정동위원소를 이용한 북한강 하천생태계 연구)

  • Kang, Jung-In;Kim, Jae-Gu;Lee, Sang-Don
    • Journal of Wetlands Research
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    • v.13 no.3
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    • pp.515-522
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    • 2011
  • This study examined the epiphytes using stable isotopes. Separated epiphytes should represent the water quality. In study areas, where agricultural paddies were prevailing, biomass of epiphytes can increase nitrogen isotopes(${\delta}^{15}N$) and as a result decrease in carbon isotopes(${\delta}^{13}C$). Naerin stream and Inbuk upper areas showed higher nitrogen isotopes(${\delta}^{15}N$) than in Hangye and Buk stream. Also, stable carbon isotopes(${\delta}^{13}C$) in Naerin stream and Inbuk streams tended to increase than in Hangye and Buk stream. This can indicate the epiphytes can be a good indicator for water quality pollution.

Isotopic dietary history of Neolithic people from Janghang site at Gadeok Island, Busan (부산 가덕도 장항 유적 출토 인골의 안정동위원소 분석을 통해 본 신석기시대의 식생활 양상)

  • Shin, Ji Young;Kang, Da Young;Kim, Sang Hyun;Jung, Eui Do
    • Analytical Science and Technology
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    • v.26 no.6
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    • pp.387-394
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    • 2013
  • We aim to unveil dietary history recorded in Neolithic human bone from Janghang site at Gadeok Island, Busan. Excavation of Janghang site at Gadeok Island from 2010 to 2011 is an outstanding discovery in Korean Neolithic archaeology. A large number of human bones (48 individuals) were found at Janghang site, which is the largest-scale Neolithic cemetery in Korea. We extracted human bone collagen from 10 individuals and stable carbon and nitrogen isotope analysis were carried out using carbon and nitrogen analyzer connected to a continuous-flow isotope-ratio-monitoring mass-spectrometer. Although bone histological analysis shows poor preservation state, stable isotope results correspond well with bone collagen quality indicator, which implies that bone collagen reflects lifetime signature. Stable carbon and nitrogen isotope result indicates highly marinebased diet(${\delta}^{13}$C=$-14.5{\pm}1.3$‰, ${\delta}^{15}$N=$-17.4{\pm}1.7$‰, n=10), however the possible input of terrestrial animal and wild plant cannot be excluded. Our isotopic findings provide an invaluable information on Neolithic subsistence economy in this coastal area. In addition, Janghang site shows specific features in burial methods and burial goods. Two different burial methods of arranging bodies are found with extended burial type and particularly high ratio of flexed burial type. There are also burial goods such as pottery. However, there are no significant isotopic differences according to burial methods and burial goods. Although this is a preliminary study on this site, our research will provide important clues in understanding isotopic dietary history of Korean Neolithic people.