Soil bacterial community composition and diversity of five soil types in Qinghai-Tibetan Plateau

doi:10.3969/j.issn.1004-1524.2017.11.15

›› 2017, Vol. 29 ›› Issue (11): 1882-1889.DOI: 10.3969/j.issn.1004-1524.2017.11.15

• Environmental Science • Previous Articles Next Articles

Soil bacterial community composition and diversity of five soil types in Qinghai-Tibetan Plateau

WANG Xin^{1, 2}, CHENG Liang^{2, 3, *}

1. Institute of Soil and Fertilizer, Qinghai Academy of Agriculture and Forestry Sciences, Qinghai University, Xi’ning 810016, China;
2. State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xi’ning 810016, China;
3. Institute of Plant Protection, Qinghai Academy of Agriculture and Forestry Sciences, Qinghai University, Xi’ning 810016, China

Received:2017-05-05 Online:2017-11-20 Published:2017-12-05

Abstract

Abstract: In August 2015, soil bacterial diversity under five soil types (Castanozeras, mountain meadow soil, chernozems, 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 Pearson 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.

Key words: soil type, soil bacterial community, high-throughput sequencing

CLC Number:

S154.36

WANG Xin, CHENG Liang. Soil bacterial community composition and diversity of five soil types in Qinghai-Tibetan Plateau[J]. , 2017, 29(11): 1882-1889.

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Soil bacterial community composition and diversity of five soil types in Qinghai-Tibetan Plateau

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