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
Characterization of nirS- and nirK-containing communities and potential denitrification activity in paddy soil from eastern China
Yuqin Liang,Chuanfa Wu,Xiaomeng Wei,Yi Liu,Xiangbi Chen,Hongling Qin,Jinshui Wu,Yirong Su,Tida Ge,Yajun Hu +9 more
TL;DR: In this paper, the abundance and structure of denitrifier are strongly influenced by environmental factors, such as soil pH, soil acidity, and biodiversity of nirS-and nirK-containing communities.
Journal ArticleDOI
Microbial community shifts 2.6 years after top dressing of Miscanthus biochar, hydrochar and feedstock on a temperate grassland site
David Rex,Sonja Schimmelpfennig,A. Jansen-Willems,Gerald Moser,Claudia Kammann,Christoph Müller,Christoph Müller +6 more
TL;DR: In this paper, a grassland field study 2.6 months after its initiation (April 2011), where Miscanthus × giganteus feedstock, biochar and biochar, each mixed with pig slurry had been applied as top-dressing in a randomized block design, next to a slurry-only control.
Journal ArticleDOI
Diversity and ecology of soil fungal communities in rubber plantations
Jutamart Monkai,Jutamart Monkai,Kevin D. Hyde,Jianchu Xu,Jianchu Xu,Peter E. Mortimer,Peter E. Mortimer +6 more
TL;DR: There is a strong need for further research into the effects of monoculture rubber plantations on soil fungal communities, and how to best manage these systems in the future, in order to create a more sustainable approach to rubber production.
Journal ArticleDOI
Tree species and recovery time drives soil restoration after mining: A chronosequence study
Songho Kim,Huadong Zang,Peter E. Mortimer,Peter E. Mortimer,Lingling Shi,Lingling Shi,Lingling Shi,Yunju Li,Jianchu Xu,Jianchu Xu,Anne Ostermann,Anne Ostermann +11 more
TL;DR: In this paper, topsoil from plantations of four tree species: alder, acacia, pine, and cypress, was collected from 0-15 cm soil patches and the results showed that after 20 years of restoration, the soil organic carbon (SOC) concentration increased, on average, from 1.4% to 4.7% for pine plantations in unrestored control and at the late stage of restoration.
Journal ArticleDOI
Soil bacterial communities with an indicative function response to nutrients in wetlands of Northeastern China that have undergone natural restoration
TL;DR: In this paper, the authors investigated the soil physicochemical properties and soil bacterial communities in paddy fields, wetlands that have undergone natural restoration, and natural wetlands in the Tumen River Basin, Northeastern China.
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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