Reconstruction of diets based on the Δ <sup>15</sup> N values of individual amino acids at three sites in Sichuan, China
Reconstruction of diets based on the Δ <sup>15</sup> N values of individual amino acids at three sites in Sichuan, China
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根据中国四川三个地点单个氨基酸的 Δ <sup>15</sup> N 值重建日粮
DOI：
10.1111/arcm.12848
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发表时间：
2023
期刊：
影响因子：
1.6
通讯作者：
Yoneda Minoru
中科院分区：
文献类型：
--
作者：
Lin Kuei‐chen;Lee Cheng‐Yi;Itahashi Yu;Zhou Zhiqing;Chen Jian;Liu Xiangyu;Yoneda Minoru
本研究分析了从四川高山、营盘山和新一村遗址的人骨样品中提取的胶原蛋白中单个氨基酸的氮同位素组成，这些样品的同位素基线不可用或与来自人类遗骸的同位素数据不可比。它的目的是了解这些遗址居民的食物组成，从新石器时代晚期到青铜时代中期，在此期间，农业和驯化动物被引入该地区，并变得越来越重要。苯丙氨酸（δ 15 NPhe）和谷氨酸（δ 15 NGlu）的δ 15 N值表明成都平原人主要食用陆生食物。水产资源对它们的食物贡献有限。对水产食品依赖程度低的一个可能解释是，发达的农业和动物驯化提供了充足的食物。这种自给自足的经济和饮食模式是在宝墩时期早期形成的。公元前2500 -2000年），在过渡到青铜时代时似乎没有改变。本研究还评估了这些生存实践在支持成都平原社会发展方面的意义。
This study analyzes the nitrogen isotope composition of individual amino acids in collagen extracted from human bone samples from the Gaoshan, Yingpanshan, and Xinyicun sites in Sichuan, where the isotope baseline is unavailable or incomparable with the isotopic data derived from human remains. It aims to understand the food compositions of the inhabitants at these sites, spanning the period from the late Neolithic to the middle Bronze Age, during which time agriculture and domestication of animals were introduced to the region and became increasingly important. The δ15N values of two amino acids, phenylalanine (δ15NPhe) and glutamic acid (δ15NGlu), indicate that the peoples on the Chengdu Plain mainly consumed terrestrial foods. The contribution of aquatic resources to their diet was limited. A possible explanation for the low dependence on aquatic foods is that the developed agriculture and domestication of animals offered sufficient foods. Such subsistence economies and dietary patterns were shaped in the early Baodun period (ca. 2,500–2000 BCE) at the latest and did not seem to change when transiting to the Bronze Age. This study also assesses the significance of these subsistence practices in supporting the social development of the Chengdu Plain.