The vegetation of different stages of rocky desertification was studied in the central and the southern Hunan. The results show that, the flora in the central Hunan consists of 82 families, 128 genera, 144 species, the flora in the southern Hunan consists of 76 families, 116 genera, 143 species, of which arbor tree species were relatively less and community structure was single, herbaceous and shrub species were more abundant. Species richness index (S), Shannon-Wiener index, Pielou index, Simpson index, ISI index, ICJ index increased at first and then decreased, the similarity of shrubs and h...
