Changes in the composition and diversity of topsoil bacterial, archaeal and fungal communities after 22 years conventional and no-tillage managements in Northern China
文献类型: 外文期刊
第一作者: Dong, Wenyi
作者: Dong, Wenyi;Liu, Enke;Yan, Changrong;Zhang, Hengheng;Zhang, Yanqing;Dong, Wenyi;Liu, Enke;Yan, Changrong;Zhang, Hengheng;Zhang, Yanqing
作者机构:
关键词: Tillage;soil;bacteria;archaea;fungi
期刊名称:ARCHIVES OF AGRONOMY AND SOIL SCIENCE ( 影响因子:3.092; 五年影响因子:2.745 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: A comprehensive comparison about microbial community (bacterial, archaeal and fungal) response to different tillage managements in Northern China remain little studied, in this study we compared no-tillage (NT) versus conventional tillage (CT) management on topsoil microbial community diversity and composition in field experiment. We found that NT practice significantly increased the soil moisture content (SMC), bulk density, stocks of soil organic carbon (SOC), total nitrogen (TN), and microbial biomass carbon and nitrogen (P < 0.05). Moreover, higher levels of bacterial and archaeal alpha diversity were observed in NT relative to CT while unexpectedly, there was no significant difference found in fungal diversity between two treatments. The most pronounced shifts in the composition of the different microbial groups were found for the archaeal community, which followed by bacterial and fungal. NT practice markedly enhanced abundances of Proteobacteria (belongs to bacteria) phyla, Thaumarchaeota phyla (belongs to archaea) and Glomeromycota phyla (belongs to fungi). Redundancy analysis revealed that the factor that most closely correlated with bacterial, archaeal and fungal composition were SMC, TN and SOC, respectively. Considering NT enhanced both microbial composition and C storage in topsoil, we suggest that NT offers significant promise to improve topsoil health in this region.
分类号: S`S15`S3
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