뼈 콜라겐의 탄소와 질소 안정동위원소에 기록된 6세기대 나주 영동리 고분군 피장자 집단의 식생활 양상
Palaeodietary Reconstruction of 6th Century Naju Yeongdong‐ri People Recorded in Stable Carbon and Nitrogen Isotope Analysis of Human Bone Collagen
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뼈에서 추출된 탄소와 질소 안정동위원소 정보는 과거 사람들의 식생활, 영양상태, 생계경제와 고환경 등을 연구하는데 매우 중요한 자료이다. 본 연구에서는 6세기대 나주 영동리 고분군 제1호분 돌방무덤과 돌덧널무덤에서 출토된 옛사람 뼈 9개체에서 추출된 콜라겐의 안정동위원소 분석을 실시하였다. 탄소와 질소 안정동위원소 결과는 다음과 같다(δ13C= -19.5±0.7‰, δ15N= 9.6±0.7‰, (n=9)). 탄소 안정동위원소 분석 결과 나주 영동리 고분군 피장자 집단은 벼, 보리, 콩 등 C3 작물 위주의 섭취를 하였다고 추정되며, 질소 안정동위원소 값으로부터 동물성 단백질은 주로 육상 동물로부터 얻었다고 추정된다. 이 결과로부터 백제식 무덤 양식을 갖고 영산강유역 토착 세력의 매장 양식이 보이는 피장자 집단의 식생활 양상을 확인할 수 있었다.
Abstract
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 6th century, excavated from stone chambers and stone-lined tombs. The following results of the analysis of stable carbon and nitrogen isotopes were obtained: δ13C= -19.5±0.7‰, δ15N= 9.6±0.7‰, (n=9). The value for stable carbon isotopes indicates that the Naju Yeongdong-ri people had a largely C3-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.
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