The comparison of properties of Karst soil and Karst erosion ratio under different successional stages of Karst vegetation in Nongla, Guangxi Spec ies Composition and D iversity in the Process of Na tura l Succession of KarstVegeta tion in Centra l Guizhou: Ca se Study of Pud ing Coun try in Gu izhou Root biomass of karst vegetation in a mountainous area of southwestern China Variation and correlation of plant functional traits in karst area of central Guizhou Province, China Leaf longevity of main evergreen tree species of Guiyang City Population variation and species diversity in succession process of karst vegetation in Yangshuo, Guangxi The daily dynamics of primary microclimatic factors in the different successional of karst vegetation in Guangxi Pmine