PRJDA60709 Pyrosequencing reveals contrasting succession patterns of major bacterial taxa in soils along a land-use type gradient Using high-throughput pyrosequencing, we investigated soil microbial community succession along a land-use type gradient of 100-year farmland, 27-year farmland, 33-year Pinus forest, 28-year Poplar forest and 21-year shrubland as well as native desert, from which all of cultivated systems were converted. 16S rRNA bioproject PRJDA60709 PRJDA60709 true genomeprj 60709 60709 false none provided