泗顶矿区6种土地利用类型土壤微生物群落结构特征

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Abstract Six different land use types (corn field, vegetable field, shrubs, mine tailing, forests and citrus orchards) were selected as variables around the Siding Lead-Zinc mining area in Liuzhou, Guangxi Province in the present study. The soil bacterial abundance, diversity and community composition were examined using Illumina MiSeq high-throughput sequencing technology to discuss the effects of soil physicochemical properties on soil microbial community structure. The results indicated that phylum Proteobacteria was the most dominant taxon in these land use types, with a high abundance ranging from 31.34% to 53.47%. Gammaproteobacteria was the most dominant class. The redundancy analysis showed that in shrubs where the content of heavy metals in the soil was the highest, there was a significant positive correlation between the relative abundance of Firmicutes and Bacteroidetes and the content of lead, zinc, cadmium and copper in soils. Additionally, in corn and vegetable field with high levels soil sodium and potassium contents, the relative abundance of Planctomycetes increased, while the relative abundance of Firmicutes and Bacteroidetes decreased. Moreover, in citrus orchards with high soil organic matter content and low nitrogen and phosphorus content, the relative abundance of Acidobacteria and Verrucomicrobia were comparably high. There was a significant positive correlation between the relative abundance of Gemmatimonadetes and Planctomycetes and the soil pH. Hence, the results indicated that land use and soil environmental factors had significant impact on the diversity of soil microbial community structure.

Key words： mining area land use type microbial community structure high-throughput sequencing

Received: 17 October 2019

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X172

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	Articles by authors
	YU Fang-ming
	YAO Ya-wei
	XIE Dong-yu
	WANG Xue-ru
	LIN Jia-min
	LIU Yuan
	LIU Ke-hui
	LI Yi

Cite this article:

YU Fang-ming,YAO Ya-wei,XIE Dong-yu等. Study on the soil microbial community structure associated with six land use in Siding mining area[J]. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(5): 2262-2269.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2020/V40/I5/2262

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