Rice Genomics and Genetics 2024, Vol.15, No.2, 83-93 http://cropscipublisher.com/index.php/rgg 89 Figure 2 Archaeological background (Adopted from Wang et al., 2022) Image caption: a: Location of Shangshan and Hehuashan, with the base map modified from the USGS National Map Viewer; b: Overview of cultural history and the process of rice domestication in the Lower Yangtze River region (Adopted from Wang et al., 2022) The use-wear and phytolith residue analysis of 52 flake tools from the Shangshan and Heguashan sites (dating back 10 000 to 7 000 years ago) provides the first evidence of rice harvesting. These tools reflect two harvesting methods: one involving cutting the panicles at the top and the other cutting the stems near the base. This reflects the early rice cultivation practices in the lower Yangtze River region (Figure 3) (Wang et al., 2022). Figure 3 A selection of stone flakes analyzed in this study (Adopted from Wang et al., 2022) Image caption: a-h represent flakes from the Shangshan culture, while i-l are flakes from the Kuahuqiao culture. The red dots indicate the working edges of these flakes (Adopted from Wang et al., 2022)
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