Changes in bacterial community composition and soil properties altered the response of soil respiration to rain addition in desert biological soil crusts

Geoderma ◽  
2022 ◽  
Vol 409 ◽  
pp. 115635
Author(s):  
Yang Wang ◽  
Yu Hong ◽  
Yulu Tian ◽  
Guiquan Tian ◽  
Jinghui Zhang ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Soil Respiration ◽  
Soil Properties ◽  
Community Composition ◽  
Bacterial Community Composition ◽  
Biological Soil Crusts ◽  
Soil Crusts

scholarly journals Erratum: Furtak, K., et al. Analysis of Soil Properties, Bacterial Community Composition, and Metabolic Diversity in Fluvisols of a Floodplain Area. Sustainability 2019, 11, 3929

2019 ◽  
Vol 11 (21) ◽  
pp. 6020 ◽  
Author(s):  
Karolina Furtak ◽  
Jarosław Grządziel ◽  
Anna Gałązka ◽  
Jacek Niedźwiecki
Keyword(s):  
Bacterial Community ◽  
Soil Properties ◽  
Community Composition ◽  
Bacterial Community Composition ◽  
Metabolic Diversity ◽  
Floodplain Area ◽  
Published Paper

The authors would like to make the following correction about the published paper [...]

scholarly journals Activity and Composition of the Denitrifying Bacterial Community Respond Differently to Long-Term Fertilization

2005 ◽  
Vol 71 (12) ◽  
pp. 8335-8343 ◽  
Author(s):  
Karin Enwall ◽  
Laurent Philippot ◽  
Sara Hallin
Keyword(s):  
Sewage Sludge ◽  
Bacterial Community ◽  
Soil Respiration ◽  
Community Composition ◽  
Bacterial Community Composition ◽  
Arable Soil ◽  
Functional Markers ◽  
Potential Denitrification ◽  
Basal Soil Respiration

ABSTRACT The objective of this study was to explore the long-term effects of different organic and inorganic fertilizers on activity and composition of the denitrifying and total bacterial communities in arable soil. Soil from the following six treatments was analyzed in an experimental field site established in 1956: cattle manure, sewage sludge, Ca(NO3)2, (NH4)2SO4, and unfertilized and unfertilized bare fallow. All plots but the fallow were planted with corn. The activity was measured in terms of potential denitrification rate and basal soil respiration. The nosZ and narG genes were used as functional markers of the denitrifying community, and the composition was analyzed using denaturing gradient gel electrophoresis of nosZ and restriction fragment length polymorphism of narG, together with cloning and sequencing. A fingerprint of the total bacterial community was assessed by ribosomal intergenic spacer region analysis (RISA). The potential denitrification rates were higher in plots treated with organic fertilizer than in those with only mineral fertilizer. The basal soil respiration rates were positively correlated to soil carbon content, and the highest rates were found in the plots with the addition of sewage sludge. Fingerprints of the nosZ and narG genes, as well as the RISA, showed significant differences in the corresponding communities in the plots treated with (NH4)2SO4 and sewage sludge, which exhibited the lowest pH. In contrast, similar patterns were observed among the other four treatments, unfertilized plots with and without crops and the plots treated with Ca(NO3)2 or with manure. This study shows that the addition of different fertilizers affects both the activity and the composition of the denitrifying communities in arable soil on a long-term basis. However, the treatments in which the denitrifying and bacterial community composition differed the most did not correspond to treatments with the most different activities, showing that potential activity was uncoupled to community composition.

scholarly journals Soil bacterial community composition in rice–fish integrated farming systems with different planting years

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zheng Zhao ◽  
Changbin Chu ◽  
Deping Zhou ◽  
Qingfeng Wang ◽  
Shuhang Wu ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Soil Properties ◽  
Community Composition ◽  
Bacterial Community Composition ◽  
Farming Systems ◽  
Soil Bacterial Community ◽  
Integrated Farming ◽  
Soil Bacterial ◽  
Rice Fish ◽  
Rice Monoculture

AbstractThe high productivity and efficient nutrient utilization in rice–fish integrated farming system are well reported. However, the characteristics of soil bacterial communities and their relationship with soil nutrient availability in rice–fish field remain unclear. In this study, we selected three paddy fields, including a rice monoculture field and two rice–fish fields with different planting years, to investigate the soil bacterial community composition with Illumina MiSeq sequencing technology. The results indicated that the soil properties were significantly different among different rice farming systems. The soil bacterial community composition in the rice–fish field was significantly different from that in the rice monoculture field. Five of the top 15 phyla were observed with significant differences and Nitrospirae was the most significant one. However, no taxa observed with significance between the rice planting area and aquaculture area no matter in the 1st or 5th year of rice–fish field. RDA analysis showed that the soil bacterial community differentiation in the 5th year of rice–fish field was positively correlated with soil properties, such as AN and OM contents, EC and pH value. Although the rice yields in rice–fish field decreased, the net economic benefit of the rice–fish system enhanced obviously due to the high value of aquaculture animals.

scholarly journals Changes in Soil Properties and Bacterial Community Composition with Biochar Amendment after Six Years

Agronomy ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 746
Author(s):  
Shuxiu Fan ◽  
Jiacheng Zuo ◽  
Hangyu Dong
Keyword(s):  
Bacterial Community ◽  
Soil Properties ◽  
Community Composition ◽  
Soil Ph ◽  
Relative Abundance ◽  
Bacterial Community Composition ◽  
Soil Characteristics ◽  
Total Carbon ◽  
Available Phosphorus ◽  
Biochar Amendment

Changes in soil physicochemical properties and bacterial community composition were investigated six years after biochar amendment at 0%, 4%, 8% and 12% (w/w), which were coded as C0, C1, C2 and C3, respectively. Results showed that some soil characteristics were sustainable, as they were still affected by biochar addition after six years. Compared to the control, biochar-treated soils had higher pH, total carbon (TC), C/N, total nitrogen (TN), available phosphorus (AP) and available potassium (AK). Soil pH, C/N and the content of TC, TN and AK all increased along with the increase of biochar dosage. The results of Illumina MiSeq sequencing demonstrated that biochar enhanced soil bacteria diversity and modified the community composition over time. The relative abundance of Nitrospirae and Verrucomicrobia phylum increased but that of Acidobacteria phylum decreased significantly in biochar amended soils. The addition of biochar also enriched some bacterial genera, such as uncultured Nitrosomonadace, uncultured Gemmatimonadac, uncultured Nitrospiraceae and Magnetovibrio. In particular, the relative abundance of uncultured Nitrospiraceae was enhanced by 16.9%, 42.8% and 73.6% in C1, C2 and C3, respectively, compared to C0. Biochar has a potential role in enhancing the abundance of bacteria involved in N cycling. Soil pH, TC, TN, TK and AK, were closely related to alterations in the composition of the soil bacterial community. Meanwhile, these soil properties were significantly influenced by biochar amendment, which indicates that biochar affected the soil microbial community indirectly by altering the soil characteristics in the long term.

scholarly journals Analysis on Characteristics of Vegetation and Soil Bacterial Community under 20 Years’ Restoration of Different Tree Species: A Case Study of the Qinling Mountains

Forests ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 562
Author(s):  
Wanlong Sun ◽  
Xuehua Liu ◽  
Zhaoxue Tian ◽  
Xiaoming Shao
Keyword(s):  
Bacterial Community ◽  
Soil Properties ◽  
Community Composition ◽  
Tree Species ◽  
Bacterial Community Composition ◽  
Alpha Diversity ◽  
Soil Bacterial Community ◽  
Growth Speed ◽  
Qinling Mountains ◽  
Soil Bacterial

Afforestation with different tree species formed different vegetation patterns, and altered soil properties and the composition and diversity of the soil bacterial community. In order to analyze the difference characteristics of vegetation, soil and bacterial community after 20 years’ restoration of different tree species, we investigated changes in vegetation (tree, shrubs, and herbs), soil properties and the soil bacterial community composition in the topsoil (0–10 cm) following afforestation of P. asperata Mast. and L. kaempferi (Lamb.) Carr.on the southern slope of the Qinling mountains. The results showed that, within a 20-year recovery period, the restorative effect of L. kaempferi was better than that of P. asperata, for alpha diversity and biomass of vegetation, composition and diversity of soil bacterial community were all preferable under nearly same environmental conditions if just taking these indices into consideration. Additionally, biodiversity of L. kaempfer was much richer than that of P. asperata. Our observations suggest that soil physicochemical properties, soil bacterial community composition and diversity following afforestation were mainly affected by tree species. The results could explain our hypothesis to some extent that a planted forest with quick growth speed and sparse canopy has higher biomass productivity and alpha diversity of ecosystem.

scholarly journals Impact of Robinia pseudoacacia stand conversion on soil properties and bacterial community composition in Mount Tai, China

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Kun Li ◽  
Xu Han ◽  
Ruiqiang Ni ◽  
Ge Shi ◽  
Sergio de-Miguel ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Soil Properties ◽  
Community Composition ◽  
Forest Restoration ◽  
Bacterial Community Composition ◽  
Robinia Pseudoacacia ◽  
Soil Bacterial Community ◽  
Bulk Soil ◽  
Soil Bacterial Community Structure ◽  
Soil Bacterial

Abstract Background Robinia pseudoacacia is a widely planted pioneer tree species in reforestations on barren mountains in northern China. Because of its nitrogen-fixing ability, it can play a positive role in soil and forest restoration. After clear-cutting of planted stands, R. pseudoacacia stands become coppice plantations. The impacts of shifting from seedling to coppice stands on soil bacterial community and soil properties have not been well described. This study aims to quantify how soil properties and bacterial community composition vary between planted seedling versus coppice stands. Methods Nine 20 m × 20 m plots were randomly selected in seedling and coppice stands. The bulk soil and rhizosphere soil were sampled in summer 2017. Bulk soil was sampled at 10 cm from the soil surface using a soil auger. Rhizosphere soil samples were collected using a brush. The soil samples were transported to the laboratory for chemical analysis, and bacterial community composition and diversity was obtained through DNA extraction, 16S rRNA gene amplification and high-throughput sequencing. Results The results showed that, compared to seedling plantations, soil quality decreased significantly in coppice stands, but without affecting soil exchangeable Mg2+ and K+. Total carbon (C) and nitrogen (N) were lower in the rhizosphere than in bulk soil, whereas nutrient availability showed an opposite trend. The conversion from seedling to coppice plantations was also related to significant differences in soil bacterial community structure and to the reduction of soil bacterial α-diversity. Principal component analysis (PCA) showed that bacterial community composition was similar in both bulk and rhizosphere soils in second-generation coppice plantations. Specially, the conversion from seedling to coppice stands increased the relative abundance of Proteobacteria and Rhizobium, but reduced that of Actinobacteria, which may result in a decline of soil nutrient availability. Mantel tests revealed that C, N, soil organic matter (SOM), nitrate nitrogen (NO3−-N) and available phosphorus positively correlated with bacterial community composition, while a variation partition analysis (VPA) showed that NO3−-N explained a relatively greater proportion of bacterial distribution (15.12%), compared with C and SOM. Surprisingly, N showed no relationship with bacterial community composition, which may be related to nitrogen transportation. Conclusions The conversion from seedling to coppice stands reduced soil quality and led to spatial-temporal homogenization of the soil bacterial community structure in both the rhizosphere and bulk soils. Such imbalance in microbial structure can accelerate the decline of R. pseudoacacia. This may affect the role of R. pseudoacacia coppice stands in soil and forest restoration of barren lands in mountain areas.

scholarly journals Impact of Robinia pseudoacacia stand conversion on soil bacterial communities composition and soil properties in Mount Tai, China

2020 ◽  
Author(s):  
kun li ◽  
xu han ◽  
ruiqiang ni ◽  
ge shi ◽  
Sergio de-Miguel ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Soil Properties ◽  
Community Composition ◽  
Forest Restoration ◽  
Bacterial Community Composition ◽  
Robinia Pseudoacacia ◽  
Soil Bacterial Community ◽  
Bulk Soil ◽  
Soil Bacterial Community Structure ◽  
Soil Bacterial

Abstract Background: Robinia pseudoacacia is a widely planted pioneer tree species in reforestations on barren mountains in northern China. Because of its nitrogen-fixing ability, it can play a positive role in soil and forest restoration. After clear-cutting of planted stands, R. pseudoacacia stands become coppice plantations. The impacts of shifting from seedling to coppice plantations on soil bacterial community and soil properties have not been well described. This study aims to quantify how soil properties and bacterial community composition vary between planted seedling versus coppice stands.Methods: Three 20×20 m plots were randomly selected in each seedling and coppice stand. The bulk soil and rhizosphere soil were sampled in the nine above-mentioned sample plots in the summer of 2017. Bulk soil was sampled at 10 cm from the soil surface using a soil auger. Rhizosphere soil samples were collected by brush. The soil samples were transported to the laboratory for chemical analysis and bacterial community composition and diversity was obtanied through DNA extraction, 16S rRNA gene amplification and high throughput sequencing.Results: The results showed that, compared to seedling plantations, soil quality decreased significantly in coppice stands, but without affecting soil exchangeable Mg2+ and K+. Total carbon (C) and nitrogen (N) were lower in the rhizosphere than in bulk soil, whereas nutrient availability showed an opposite trend. The conversion from seedling to coppice plantations was also related to significant differences in soil bacterial community structure and to the reduction of soil bacterial α-diversity. Principal component analysis (PCA) showed that, bacterial community composition was similar in both bulk and rhizosphere soils in second generation coppice plantations. Specially, the conversion from seedling to coppice increased the relative abundance of Proteobacteria and Rhizobium, but reduced that of Actinobacteria, which may result in a decline of soil nutrient availability. Mantel tests revealed that C, N, Soil organic matter (SOM), nitrate nitrogen (NO3--N) and available phosphorus positively correlated with bacterial community composition, while a variation partition analysis (VPA) showed that NO3--N explained a relatively greater proportion of bacterial distribution (15.12%), compared with C and SOM. Surprinsingly, N showed no relationship with bacterial community composition, which may be related to nitrogen transportation. Conclusions: The conversion from seedling to coppice stands reduced soil quality and led to spatial-temporal homogenization of the soil bacterial community structure in both the rhizosphere and bulk soils. Such imbalance in microbial structure can accelerate the decline of R. pseudoacacia. This may affect the role of R. pseudoacacia coppice stands in soil and forest restoration of barren lands in mountain areas.

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