Fig. 2
From: Spatio-temporal pattern and entropy variation of agricultural heritage in China

Analysis of spatial–temporal patterns of CNIAHS. a Paleolithic Age and Neolithic Age. b Xia, Shang and Zhou. c Spring and Autumn Period and Warring States Period. d Qin and Han to the Southern and Northern Dynasties. e Sui, Tang, Song and Yuan Dynasties. f Ming and Qing Dynasties