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本文通过对甘肃张掖西城驿遗址2010年发掘时采集的系列样品进行浮选,对浮选所获丰富的炭化植物种子和麦类作物穗轴进行鉴定、统计和分析。结果表明,炭化种子以谷物类为主。各类谷物的比例和出土概率反映该遗址在西城驿文化和四坝文化阶段是从事以粟黍为主的小米类农业,在西城驿文化偏晚阶段开始利用以小麦为主的麦类作物,在四坝文化时期发展成种植粟黍为主、麦类作物为辅的农业模式。遗址的加工模式可能包括脱粒-扬场的加工阶段。
In this paper, a series of samples collected during the excavation of Xichengyi Site in Zhangye, Gansu Province were flotated to identify, count and analyze the cob of abundant carbonized plant seeds and wheat crops obtained by flotation. The results showed that the carbonized seeds were mainly cereals. The proportions and unearthed probabilities of various cereals reflect that the site was engaged in millet-based millet-type agriculture in Xichengyi culture and Siba culture stage. Wheat-based wheat crops began to be used in the late stage of Xichengyi culture, During the period of Siba culture, it developed into an agriculture mode that is mainly poplar millet, supplemented by wheat crops. The processing mode of the site may include threshing - the processing stage of uplift.