Fig. 2

The LISA cluster map of the internal emigrant and immigrant in China. a, b and c for immigrant, d, e and f for emigrant. a, b and c show the spatial clustering of immigrants in 2005, 2010 and 2015, respectively. d, e and f show the spatial clustering of emigrants in 2005, 2010 and 2015, respectively. LISA: Local indicator of spatial association