<b>A database for modeling the mobility of microblade-based societies over East Asia since 46 ka BP</b>

Microliths are an important symbol of the evolution of human culture at the end of the Late Pleistocene, an important behavior of ancient humans to adapt to the environmental changes before and after the last glacial maximum, and also an important evidence for tracing the migration and spread of modern humans. In this study, we compile a comprehensive database of microblade sites across East Asia through extensive literature review to systematically characterize their spatiotemporal distribution patterns. By applying the Binford model, we simulate resource availability and environmental conditions during the emergence and diffusion of microblade (36-10ka BP) in East Asia. The main findings are summarized as follows: (1) The East Asian Microlithic Site Database comprises 146 microblade sites with 457 dating entries, spanning 36-10ka BP. (2)We obtained over 267 variable results through the Binford model. Study area: 83°E–160°E, 27°N–63°N (0.2°×0.2° grid). Time spans: 36–21ka BP (2ka resolution); 21–10ka BP (1ka resolution).细石器（Microliths）是晚更新世末期人类文化演化的重要标志，亦是古人类适应末次冰盛期前后环境变化的关键行为体现，同时还是追溯现代人类迁徙与扩散的重要实证。 本研究通过广泛的文献调研，整合构建了东亚地区细石叶（microblade）遗址综合数据库，旨在系统刻画其时空分布格局。 本研究应用宾福德模型（Binford Model），模拟了东亚地区36-10ka BP时段内细石叶出现与扩散过程中的资源可获得性与环境状况。 主要研究结果总结如下： (1) 东亚细石器遗址数据库（East Asian Microlithic Site Database）共收录146处细石叶遗址，包含457条测年记录，时间跨度为36-10ka BP。 (2) 本研究通过宾福德模型获得了267组以上可变模拟结果。研究区域为东经83°–160°、北纬27°–63°，网格精度为0.2°×0.2°；时间分辨率设置为：36–21ka BP时段分辨率为2千年，21–10ka BP时段分辨率为1千年。