Effects of different land use patterns on soil bacterial and fungal biodiversity in the hydro-fluctuation zone of the Three Gorges Reservoir region

Hong, 秦红 Qin; Changxiao, 李昌晓 Li; Qingshui, 任庆水 Ren

doi:10.5846/stxb201603030374

Cited by 3 publications

(3 citation statements)

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“…This study revealed Proteobacteria, Acidobacteria, and Actinobacteria as dominant bacterial phyla in soils of different land use types. However, land use significantly altered the relative abundance of soil bacterial phyla, which was consistent with the results of Zou, Xiaoxiao and Cai, Guanxia [20][21][22][23]. Moreover, we summarized other studies in different regions and found that the dominant soil bacterial phyla were all the same in different land use types, but the structure and diversity of soil microbial communities changed significantly (Table A3).…”

Section: Discussionsupporting

confidence: 87%

Effects of Land Use Type Transformation on the Structure and Diversity of Soil Bacterial Communities

Hua,

Sui,

Liu

et al. 2024

Life

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Soil microbiota are significantly influenced by their microenvironments. Therefore, to understand the impacts of various land use patterns on the diversity and composition of soil bacterial communities, this study focused on three typical land use types—NF (natural forest), AF (artificial forests), and FL (farmland)—in the Heilongjiang Central Station Black-billed Capercaillie National Nature Reserve, located in the southwestern part of Heihe City, Heilongjiang Province, China. Using high-throughput sequencing of the 16S rRNA gene, we examined the soil bacterial community structures in these different land use types and explored their correlation with soil environmental factors. The following were our main observations: (1) Significant variations in soil chemical properties among different land use patterns were observed. In artificial forests, total nitrogen (TN), alkali hydrolyzed nitrogen (AN), total phosphorus (TP), and available phosphorus (AP) were higher compared to farmland and significantly higher than those in natural forests. Furthermore, the organic carbon content (SOC) in natural forests was higher than in artificial forests and significantly higher than in farmland. (2) Comparative analysis using the Shannon and Simpson indices revealed that bacterial community diversity was higher in artificial forests than in natural forests, which was significantly higher than in farmland. (3) The effect of different land use types on soil bacterial community structure was not significant. The three land types were dominated by Proteobacteria, Acidobacteria, and Actinobacteria. Proteobacteria exhibited a higher relative abundance in farmland and artificial forests compared to natural forests, whereas Actinobacteria exhibited the lowest relative abundance in natural forests. (4) Redundancy analysis (RDA) revealed that SOC, TN, AN, and AP were key environmental factors influencing the microbial communities of soil. Collectively, our findings demonstrated that land use practices can significantly alter soil nutrient levels, thereby influencing the structure of bacterial communities.

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Section: Discussionsupporting

confidence: 87%

Effects of Land Use Type Transformation on the Structure and Diversity of Soil Bacterial Communities

Hua,

Sui,

Liu

et al. 2024

Life

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“…DNA extraction and PCR ampli cation of soil fungi and bacteria Soil fungal DNA was extracted with a PowerSoil DNA DNA Soil Genomic DNA Kit, soil bacterial DNA was extracted with a Fast DNA SPIN Kit (MP, USA), and DNA quality was detected via 1% agarose gel electrophoresis. The ITS1 PCR ampli cation primers used were ITS1F (5'-CTTGGTCATTTAGAGGAAGTAA-3') and ITS2R (5'-TGCGTTCTTCATCGATGC-3') 19 . The ampli cation mixture was 20 μL, and the ampli cation procedure was predenaturation at 95 °C for 3 min, 95 °C for 3 s, annealing at 55 °C for 30 s, extension at 72 °C for 45 s, and extension at 72 °C for 10 min for a total of 36 cycles.…”

Section: Determination Of Soil Physical and Chemical Propertiesmentioning

confidence: 99%

Study on the influence of Amorphophallus muelleri and flue-cured tobacco rotation on the soil microbial community in Southwest China

农,

Lu,

et al. 2024

Preprint

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The continuous cropping of tobacco soil is an obstacle in current flue-cured tobacco production. To explore the effects of the different planting patterns on soil nutrients and microbial community structure, soil samples from the Amorphophallus muelleri continuous cropping (MMT1), A. muelleri + flue-cured tobacco rotation (MKT2) and flue-cured tobacco continuous cropping (KKT3) systems were collected at the same experimental site. The characteristics and relationships between the soil microbial community and soil nutrients under the different planting patterns were analyzed via Illumina MiSeq high-throughput sequencing. The results showed that the soil organic matter content, hydrolyzable nitrogen content and pH value in the A. muelleri + flue-cured tobacco rotation treatment were significantly higher than those in the other two treatments. The composition of the soil microbial communities under the different planting patterns was similar at the phylum level, but the relative abundances of Proteobacteria, Mortierellomycota and Basidiomycota in the A. muelleri + flue-cured tobacco rotation treatment were 0.31, 0.56 and 0.39 times higher than those in A. muelleri continuous cropping and flue-cured tobacco continuous cropping, respectively. The abundance of Ascomycota in the flue-cured tobacco continuous cropping treatment was 0.02 times higher than that in the A. muelleri continuous cropping of A. muelleri + flue-cured tobacco (P < 0.05). At the genus level, the abundances of Sphingomonas, Arthrobacter, Bacillus and Mortierella in the A. muelleri + flue-cured tobacco rotation treatment were 0.84, 0.006, 0.36 and 0.07 times higher than those in the A. muelleri continuous cropping, and 0.78, 1.41 and 0.24 times higher than those in the flue-cured tobacco continuous cropping treatment. The dominant bacteria and fungi were significantly correlated with the soil nutrients. From the perspective of microbial function, the bacterial KEGG enrichment pathway of the tested soil samples was mainly the metabolism pathway. The energy metabolism, carbohydrate and amino acid gene abundances of the soil bacterial community after A. muelleri + flue-cured tobacco rotation were higher than those after A. muelleri continuous cropping and flue-cured tobacco continuous cropping. The rotation planting pattern plays a positive role in regulating soil nutrients, improving the microbial community structure and increasing the functional metabolism of beneficial bacteria. The results of this study can provide a reference for the production of high-quality flue-cured tobacco.

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“…Soil bacteria contain genes that encode degrading enzymes that can degrade plant cell walls and break down soil organic matter. Soil bacteria can participate in mineral weathering process and promote the release of inorganic nutrients in soils [9][10][11][12][13]. It is important to study the bacterial structure and diversity to study the composition and diversity of rhizosphere soil of dominant plants in riparian wetlands of reservoir for the choosing suitable ecological restoration mode of riparian ecological systems.…”

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confidence: 99%

Bacterial Communities Structure and Diversity in Rhizosphere Soil of Dominant Plants in Riparian Wetlands of Reservoir in Zhejiang Province, China

Chen

Zhao-ping

et al. 2023

J. Phys.: Conf. Ser.

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Soil bacterial play special roles in the maintenance and stabilization of wetland ecosystem. To investigate bacterial community structure and diversity in rhizosphere soils of four dominant plants in riparian wetlands of mountain reservoir in Zhejiang province, the V4+V5 areas of 16S rDNA gene of bacteria were sequenced and analyzed by the Illumina HiSeq 2500 high-throughput sequencing technology. The results indicated that 27 phylums, 70 classes, 144 orders, 218 families, and 370 genuses of bacteria were achieved, with Proteobacteria, Acidobacteria,Actinobacteria and Bacteroidetes being the dominant phylum and Gammaproteobacteria, Deltaproteobacteria, Acidobacteria, Actinobacteria, Betaproteobacteria and Thermoleophilia being the main class in the soils of riparian wetlands in this areas. The Shannon index and chao1 index of the rhizosphere soil bacteria of Salix babylonica were 8.64 and 585.58, respectively, which were the highest among the four plants, and that of Pterocarya stenoptera were the lowest, with 7.71 and 289.63, respectively. Soil pH, total nitrogen and organic matter were the main factors affecting the soil bacterial community structure in the soil rhizosphere of four dominant plants species in wetlands of riparian zone of reservoir in Zhejiang province.

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Effects of different land use patterns on soil bacterial and fungal biodiversity in the hydro-fluctuation zone of the Three Gorges Reservoir region

Cited by 3 publications

References 0 publications

Effects of Land Use Type Transformation on the Structure and Diversity of Soil Bacterial Communities

Effects of Land Use Type Transformation on the Structure and Diversity of Soil Bacterial Communities

Study on the influence of Amorphophallus muelleri and flue-cured tobacco rotation on the soil microbial community in Southwest China

Bacterial Communities Structure and Diversity in Rhizosphere Soil of Dominant Plants in Riparian Wetlands of Reservoir in Zhejiang Province, China

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