Journal ArticleDOI
Land-use history has a stronger impact on soil microbial community composition than aboveground vegetation and soil properties
Kamlesh Jangid,Mark A. Williams,Alan J. Franzluebbers,Thomas M. Schmidt,David C. Coleman,William B. Whitman +5 more
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TLDR
History of land-use was a stronger determinant of the composition of microbial communities than vegetation and soil properties, and microbial communities in disturbed soils apparently return to their native state with time.Abstract:
The response of soil microbial communities following changes in land-use is governed by multiple factors. The objectives of this study were to investigate (i) whether soil microbial communities track the changes in aboveground vegetation during succession; and (ii) whether microbial communities return to their native state over time. Two successional gradients with different vegetation were studied at the W. K. Kellogg Biological Station, Michigan. The first gradient comprised a conventionally tilled cropland (CT), mid-succession forest (SF) abandoned from cultivation prior to 1951, and native deciduous forest (DF). The second gradient comprised the CT cropland, early-succession grassland (ES) restored in 1989, and long-term mowed grassland (MG). With succession, the total microbial PLFAs and soil microbial biomass C consistently increased in both gradients. While bacterial rRNA gene diversity remained unchanged, the abundance and composition of many bacterial phyla changed significantly. Moreover, microbial communities in the relatively pristine DF and MG soils were very similar despite major differences in soil properties and vegetation. After >50 years of succession, and despite different vegetation, microbial communities in SF were more similar to those in mature DF than in CT. In contrast, even after 17 years of succession, microbial communities in ES were more similar to CT than endpoint MG despite very different vegetation between CT and ES. This result suggested a lasting impact of cultivation history on the soil microbial community. With conversion of deciduous to conifer forest (CF), there was a significant change in multiple soil properties that correlated with changes in microbial biomass, rRNA gene diversity and community composition. In conclusion, history of land-use was a stronger determinant of the composition of microbial communities than vegetation and soil properties. Further, microbial communities in disturbed soils apparently return to their native state with time.read more
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Journal ArticleDOI
Long‐term nitrous oxide fluxes in annual and perennial agricultural and unmanaged ecosystems in the upper Midwest USA
Ilya Gelfand,Ilya Gelfand,Iurii Shcherbak,Neville Millar,Neville Millar,Alexandra Kravchenko,G. Philip Robertson,G. Philip Robertson +7 more
TL;DR: Overall, long-term measurements reveal lower fluxes in nonlegume perennial vegetation and, for conservatively fertilized annual crops, the overriding influence of rotation phase on annual fluxes.
Journal ArticleDOI
High Bacterial Diversity of Biological Soil Crusts in Water Tracks over Permafrost in the High Arctic Polar Desert
TL;DR: The bacterial communities of these high latitude polar biocrusts are diverse but do not show a consensus response to intermittent flow in water tracks over high Arctic permafrost, suggesting they are not as diverse as temperate latitude communities.
Journal ArticleDOI
Functional Distribution of BacterialCommunity under Different Land Use PatternsBased on FaProTax Function Prediction
TL;DR: Liang et al. as mentioned in this paper evaluated the bacterial community functional community profiles across different land use types in the mountainous region of eastern Liaoning Province, China, such as natural secondary forest (Quercus mongolica), shrub wood (SW), coniferous planation (Larix gmelini (LG), and Pinus koraiensis (PK)), and agricultural land (Zea mays (ZM)) using high-throughput sequencing of the bacterial 16S rDNA gene, and predicted based on the FaProTax database.
Journal ArticleDOI
Soil resilience and recovery: rapid community responses to management changes.
Penny R. Hirsch,Deveraj Jhurreea,J. K. Williams,Philip J. Murray,Tony Scott,Tom Misselbrook,Keith Goulding,Ian M. Clark +7 more
TL;DR: Conversion to permanent grassland effectively replenished C in previously degraded soil; the soil microbiome showed significant conversion-related changes; plant-driven recovery was quicker than C loss in the absence of plants.
Journal ArticleDOI
Reviews and syntheses: Agropedogenesis – humankind as the sixth soil-forming factor and attractors of agricultural soil degradation
Yakov Kuzyakov,Kazem Zamanian +1 more
TL;DR: In this paper, a theory of anthropedogenesis is proposed for soil development under agricultural practices, and a multidimensional attractor space is defined to predict the trajectory and the final state of agrogenic soil development and developing measures to combat soil degradation.
References
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Journal ArticleDOI
Greengenes, a Chimera-Checked 16S rRNA Gene Database and Workbench Compatible with ARB
Todd Z. DeSantis,Philip Hugenholtz,Neils Larsen,Mark Rojas,Eoin L. Brodie,Keith Keller,Thomas Huber,Daniel Dalevi,Ping Hu,Gary L. Andersen +9 more
TL;DR: A 16S rRNA gene database (http://greengenes.lbl.gov) was used to provide chimera screening, standard alignment, and taxonomic classification using multiple published taxonomies as mentioned in this paper.
Journal ArticleDOI
The diversity and biogeography of soil bacterial communities
Noah Fierer,Robert B. Jackson +1 more
TL;DR: Bacterial diversity was highest in neutral soils and lower in acidic soils, with soils from the Peruvian Amazon the most acidic and least diverse in this study.
Journal ArticleDOI
Introducing DOTUR, a Computer Program for Defining Operational Taxonomic Units and Estimating Species Richness
Patrick D. Schloss,Jo Handelsman +1 more
TL;DR: A computer program, DOTUR, is developed, which assigns sequences to OTUs by using either the furthest, average, or nearest neighbor algorithm for each distance level, which addresses the challenge of assigning sequences to operational taxonomic units (OTUs) based on the genetic distances between sequences.
Journal ArticleDOI
Global patterns in bacterial diversity
Catherine A. Lozupone,Rob Knight +1 more
TL;DR: The most comprehensive analysis of the environmental distribution of bacteria to date, based on 21,752 16S rRNA sequences compiled from 111 studies of diverse physical environments, is reported in this article.
Journal ArticleDOI
The influence of soil properties on the structure of bacterial and fungal communities across land-use types
TL;DR: Soil pH was the best predictor of bacterial community composition across this landscape while fungal community composition was most closely associated with changes in soil nutrient status, suggesting specific changes in edaphic properties, not necessarily land-use type itself, may best predict shifts in microbialcommunity composition across a given landscape.
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