Research has shown that rice cultivation prevailed in the Jianghan Plain in the Neolithic and that northern millet spread to the region no later than the era of Youziling culture (5800-5100 BC). C. ). However, it remains to be revealed what other plant foods were eaten by other prehistoric people and how the paleo diet of plant foods evolved.
In a recent study published in Frontiers in Plant Science, a study team led by Professor Yang Yuzhang of the University of the Chinese Academy of Sciences and Technology (USTC) implemented, for the first time, starch grain studies to read about Neolithic pottery fragments. of Qujialing and revealed the resources and disposition of plant foods fed by prehistoric peoples in the region of studies.
The researchers detected starch grains of the species, adding task tears (Coix lacryma-taski), lotus roots, acorns, Chinese yams, and legumes in Qujialing ceramic pots, with the exception of rice and millet which had been identified in the past, indicating the apparent diversity of plant food resources in the Neolithic past.
In particular, Job’s tears and lotus roots in Qujialing’s archaeological paintings were first identified. The maximum frequency of detection of starch grains from lotus roots showed that they had been widely fed through Chinese ancestors, and this may be similar to the local environment surrounded by water with abundant aquatic plant resources.
Based on the effects of previous paintings on macrofossil and phytoliths remains and a quantitative investigation of the frequency of starch grains from other phases, the researchers showed that rice persistently governed the paleodiet and that the proportion of foods such as acorns collected declined particularly as agriculture evolved at the Qujialing site.
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