Diversity and Assembly of Bacteria Community in Lime Soil under Different Karst Land-Use Types

Bacteria play an important role as decomposers in karst ecosystems, which can be associated with soil and plants, promoting the cycling of nutrients between plants soil. To reveal diversity structure bacterial communities some land-use types after Grain for Green pattern, samples were collected from different (crops, grasses, plantations) analysis. Changes assembly bacteria examined using 16S rRNA Illumina sequencing chemical properties. We found that 18 years program, properties available nitrogen (AN), total phosphorus (TP), (TN), organic matter (SOM) grassland significantly those farmland. The plantations also lower than farmlands. Different did not affect community structure. Actinobacteria, Proteobacteria, Chloroflexi, Acidobacteria dominant phyla all plots. relative abundance Proteobacteria was higher grasslands farmlands, whereas Actinobacteria grasslands. Furthermore, no significant correlations observed factors groups at genus level. null model analysis indicated dispersal limitations stochastic processes predominated systems. Combined previous analyses driving core species soils, we speculated a more construction restored soils plot scale.