Crop monoculture rather than agriculture reduces the spatial turnover of soil bacterial communities at a regional scale

摘要: The goal of this study was to investigate the spatial turnover soil bacterial communities in response environmental changes introduced by practices soybean monoculture or crop rotations, relative grassland soils. Amplicon sequencing 16S rRNA gene used analyse diversity producer fields through three successive cropping cycles within one and a half years, across regional scale Argentinean Pampas. Unlike local diversity, which not significantly affected land use type, agricultural management had strong influence on β-diversity patterns. Distributions pairwise distances between all soils samples under lower narrower breadth compared with distributions managed rotation. Interestingly, good similar degree as natural grasslands. higher phylogenetic relatedness region likely determined observed loss endemic species, mostly phyla low such Acidobacteria, Verrucomicrobia candidates SPAM WS3. These results suggest that implementation practices, including rotation, may be critical for long-term conservation biodiversity.