Previous studies have shown that in the middle and late Yangshao culture , all major regional civilizations in China established agricultural production as the mainstay of the ancestors' living economy.
The Central Plains region, with west-central Henan and south-central Shanxi as its core, played a leading role in the origin and early development of Chinese civilization, which is closely related to the sustained development of theand the formation of a diversified crop cultivation system in the region 6,000 years before present.
However, due to a lack of reliable archaeobotanical evidence and accurate chronological data, the archaeological community is still unclear about the exact time and structural evolution of the Yangshao-era agricultural economy in the region. In this study, the researchers employed the method of analyzing the charred plant remains, combined with the high-precision accelerator mass spectrometer The results showed that the identifiable charred plant remains found in the flotation soil samples of the Yangshao culture period at the Shigu site are dominated by three kinds of crops planted, namely broomcorn millet,