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
Citations
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Journal ArticleDOI
Resource availability underlies the plant-fungal diversity relationship in a grassland ecosystem
Lauren C. Cline,Sarah E. Hobbie,Michael D. Madritch,Christopher R. Buyarski,David Tilman,David Tilman,Jeannine Cavender-Bares +6 more
TL;DR: It is demonstrated that changes in the supply and composition of organic substrates entering soil collectively influence fungal communities and rates of soil C and N cycling.
Journal ArticleDOI
Effect of land management and Prosopis juliflora (Sw.) DC trees on soil microbial community and enzymatic activities in intensive silvopastoral systems of Colombia
TL;DR: Investigating the impact of the conversion of CP to ISS, as well as the effect of canopy of Prosopis juliflora trees in a chronosequence of ISS, indicates that ISS are viable alternatives for improving soil quality and metabolic function, which is reflected in the significant increase in microbial biomass, FAME biomarkers and enzyme activities compared with CP.
Journal ArticleDOI
Bacterial communities in soil mimic patterns of vegetative succession and ecosystem climax but are resilient to change between seasons
TL;DR: In mature soils, resilient and stable soil bacterial community structures developed, mimicking steady-state climax communities that were observed during latter stages of primary plant succession, pointing to possible feedbacks between plant and bacterial communities during ecosystem development.
Journal ArticleDOI
The effects of 55 years of different inorganic fertiliser regimes on soil properties and microbial community composition
TL;DR: This article investigated the long-term effects of eight different inorganic fertiliser regimes at four sites: no phosphorous and potassium (PR) fertilisation or annual replacement of harvested PR, combined with 0, 50, 100, or 150 kg nitrogen (N) ha(1) yr(-1) on a range of soil properties and microbial community composition.
Journal ArticleDOI
Effects of grassland afforestation on structure and function of soil bacterial and fungal communities.
Kaibo Wang,Yong-wang Zhang,Zhuangsheng Tang,Zhouping Shangguan,Fan Chang,Feng'an Jia,Yi-ping Chen,Xinhua He,Weiyu Shi,Lei Deng,Lei Deng +10 more
TL;DR: Investigation of changes in soil properties and soil microorganisms after afforestation of natural grasslands with Chinese pine on the Loess Plateau in China demonstrated simultaneously differential changes in the composition and diversity of both soil bacterial and fungal communities after affOREstation from grasslands to planted forests.
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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