辽宁北票喇嘛洞遗址出土人骨稳定同位素分析

喇嘛洞遗址是我国北方地区一处以三燕文化墓葬为主的大型墓地,对其出土人骨进行C和N稳定同位素分析,可望了解先民的食谱,揭示其生活方式进而探索鲜卑与汉的相互联系。该遗址20个墓葬出土人骨的C、N含量以及C/N摩尔比反映了样品均保存较好,可用作食谱分析。人骨中骨胶原δ13C和δ15N分析显示,先民主要以C4类食物为食,且基本为素食,这当与发达的糜子和粟米农业密切相关,表明喇嘛洞遗址鲜卑生活方式已受到汉文化的强烈影响,由游猎为生转变为农业生产为主。对不同性别的先民食谱差异性进行t检验,发现男女食谱上不存在显著差异。样品BLM63和BLM99的δ15N值相对较高,揭示了其食物结构中含有一定量的肉类。

Stable Isotopic Analysis on Human Bones of the Lamadong Site, Beipiao, Liaoning Province

The Lamadong site is a large necropolis belonging to Sanyan Culture in North China, which dates to the Western and Eastern Jin dynasties ( 265AD-420AD). In this research, we used carbon and nitrogen stable isotopes to explore the palaeodiet and get to know the living style of the people of this site. A broard perspective of thisstudy was to examine the historic relationship between the Sanyan and Han cultures. The contents of carbon, nitrogen, and the ratio of carbone/nitrogen of 20 human bones from this site indicated that all samples were uncontaminated, which is an important criteria for palaeodiet analysis. The values of
13C and
15N of the collagen showed that these ancestors mainly relied on C4 plants and were essentially vegetarians. We interpret this result with the advent of agriculture. It is noted that the lifestyle of Xianbei was strongly influenced by the Han culture at the Lamadong site, since they were changing from a nomadic phase to a settled farming phase. We also carried out ttest statistical analysis on different genders, and found there were no distinct sexual differences in their diet. Sample BLM63 and BLM99 have comparative higher values of 15 N, indicating that some meat was included in their diet.