陕西神木木柱柱梁遗址先民的食谱分析

Analysis of the Subsistence Practice at the Muzhuzhuliang Site in Shenmu,Shaanxi

距今4000年前后,陕北地区呈现出异常兴盛的文化发展态势。导致这种现象出现的原因很多,生业经济的兴盛无疑是最根本的因素。为深入认识当时生业经济的面貌,本研究以神木木柱柱梁遗址出土人骨为研究对象,采用碳、氮稳定同位素分析方法,重建先民的食物结构。研究发现,木柱柱梁先民基本以粟作农业为食,肉食消费程度较低。这意味着该遗址人群仍然属于粟作农业为主要生计的人群。

Northern Shaanxi Neolithic,especially the blooming of Neolithic communities about 4000 BP is of great importance to an improved understanding of evolution of Chinese Civilization. The prosperity of archaeological remains dated to aroud 4000BP is undoubtedly closely related to various social and economic factors, among which food production technology is one of the most critical reasons. In order to evaluate the importance of millet agriculture to human diet and hence subsistent strategy, bones belonging to seven human individuals from the Muzhuzhuliang site in Shenmu county, Shaanxi province, were chosen for stable carbon and nitrogen isotope analysis. Bone collagen δ^13C values （-103‰-6.7‰,-8.2 ± 15‰） indicate that these individuals concentrated on C4 food consumption with some intake of C3-plant based nutrients occasionally.δ^13N values （7.8%0 -95 %0, 8.8±0.6‰） imply that only a few animal protein was consumed by local farmers. We therefore conclude that millet products （both millet grains and millet-foddered pigs） dominated human diets, and that local subsistent practice was largely based on millet farming.