Bone Powder and Wild Plants: Subsistence Strategies of Early Neolithic Settlers in North China

The transition from hunting and gathering to agriculture is a major turning point in human history. In North China, although crops were cultivated as early as 10,000 BP, they only became staple foods with the establishment of a fully functional agricultural system between 6000 and 5000 BP. Thus, exploring the subsistence strategies of this transitional period is crucial for understanding how hunter-gatherers gradually evolved into farmers. The Peiligang culture (c. 9000–7000 BP) is one of the most significant early Neolithic cultures in this region. In this study, we investigated the crust residues from the pottery Ding-tripods (鼎) dating to the middle Peiligang culture (8800–8200 cal bp) at the Xielaozhuang site using a multidisciplinary approach that includes FTIR, XRD, SEM-EDS, and starch granule analyses. Our results indicate that a mixture containing bone powder, Panicoideae, Triticeae, and acorns was prepared in these pottery Ding-tripods. This finding represents one of the earliest known uses of bone powder globally, contributing valuable insights to the ongoing debate regarding fragmented bone assemblages and bone grease extraction. Moreover, combined with macrobotanical and zooarchaeological data, our findings suggest that agriculture had not yet fully supplanted hunting and gathering, as wild plants and animals continued to play a critical role in the diet at the Xielaozhuang site during the Peiligang culture. The use of bone powder alongside wild plant starches illustrates how these early communities invested significant time and effort into transforming inedible resources into consumable food, a strategy crucial for obtaining sufficient calories to sustain a sedentary lifestyle, especially during periods of resource scarcity. These insights illuminate the subsistence strategies of early Neolithic societies transitioning from reliance on hunting-gathering to more settled practices.