本文使用不同倍率的超景深电子显微镜,对新疆吐鲁番胜金店墓地中出土的13例臼齿的颊侧微磨耗形态进行了观察和研究。通过对臼齿颊侧表面凹坑和条痕形态微磨耗的测量和统计,计算出每例牙齿的微痕数量、均长、均宽、凹坑百分比和L_h/L_v比值,按照性别和年龄分组进行人群内的数据对比分析。研究结果表明,该人群中年龄较大的个体摄入更高比例的植物类食物;两性的食物结构不存在显著性差异,男性摄入植物类食物比例略高,女性的食物结构在不同的年龄阶段有所差异。将胜金店墓地人群与不同生计方式人群的L_h/L_v比值进行人群间的差异性分析,并结合胜金店墓地的随葬品特点推测,胜金店墓地人群的食物结构以肉类食物为主,其生计模式以游牧业为主,兼营种植类经济。

In this study, based on the human teeth yielded from Shengjindian cemetery, the buccal surfaces of 13 molars were observed under different magnifications with hyper-filed 3D electron microscope. The statistics and comparative analysis on the scratches and pits of the molar buccal surfaces in terms of the gender and age suggested that the older individuals and male ingested a higher proportion of plant food and female tend to ingested less meat with age increasing. In addition, there was no significant difference in dietary composition between male and female. It could be inferred from the comparative analysis of L_h/L_v among the different populations(Shengjindian people, modern humans and other Chinese ancient populations) and the characteristics of the funerary objects that the main subsistence pattern of the population of Shengjindian was nomadic herding and the animal products was the dominant food in their daily dietary. Meanwhile, there also existed some proportion of agriculture.