国家级非遗项目空间分布及谱系年代研究
李嘉欣, 王振波

Spatial distribution and pedigree age of national intangible cultural heritage
LI Jiaxin, WANG Zhenbo
图8 历史人口峰值与源于不同历史时期的非遗数量
Fig. 8 Historical population peaks and the number of intangible cultural heritage projects originating from different historical periods