In order to deeply understand the relationship between human and animals under the background of social complexity during the Yangshao period in Central Plains,we carried out carbon and nitrogen stable isotope analysis on the animal bones unearthed from the Qingtai site in Xingyang City,Zhengzhou.A total of 41 groups of animal bones were selected in this study,including 5 dogs,20 pigs,12 deers and 4 Bubalus Mephistopheles.The isotopic data shows that pigs and dogs also display close relationship with millet agriculture,whose fodder mainly came from the millet straw,grain chaff,and human leftovers.Some of the wild pigs are closely related to human beings,and there are more C4 plants in their food,which may be the wild boar foraging in human living areas,or the domestic pigs returning to the wild.There are a high proportion of C4 plants in food structure of the Bubalus Mephistopheles.The reason needs to be further discussed.It does not rule out the possibility of eating millet and other agricultural and sideline products,which may be affected by human behavior.
Qingtai siteanimal remainsstable carbon and nitrogen isotope analysissubsistence