Soil bacterial community composition and diversity of five soil types in Qinghai-Tibetan Plateau
In August 2015, soil bacterial diversity under five soil types (Castanozeras, mountain meadow soil, cher-nozems, gray desert soil, gray-cinnamon soil ) was measured using Illumina high-throughput sequencing. It was shown that soil total organic carbon and total nitrogen varied in the order of castanozeras>mountain meadow soils>chernozems>gray desert soils >gray-cinnamon soils. There was no correlation between soil nutrient accumulation and the elevation of the sampling sites. The dominant phyla across all the soils were Proteobacteria, Actinobacteria, Acidobacteri, Bacteroidetes, Chloroflexi and Firmicutes. The bacteria diversity ( species richness and phylogenetic diversity) of castanozeras and mountain meadow soils was significantly ( P <0. 05 ) higher than that of other soil types. Phylogenetic diversity in gray desert soil was significantly (P<0. 05) lower than that of other soil types. The lowest phylotype richness was observed in gray-cinnamon soil. The results of the canonical correspondence and Pear-son correlation analysis showed that soil moisture content, and contents of potassium, total organic carbon and total nitrogen were the main factors that affected the soil bacterial community composition and alpha diversity in these five soil types.
NETL
NSTL
万方数据
维普
