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    Home > Biochemistry News > Biotechnology News > The community construction mode of soil microorganisms in the North China Plain.

    The community construction mode of soil microorganisms in the North China Plain.

    • Last Update: 2020-08-11
    • Source: Internet
    • Author: User
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    How to construct biomes is one of the core problems in ecology, ecologists have done a lot of research on the process of plant community construction, but the research on microbial community construction is lagging behind.
    at present, soil microbial biogeography mainly focuses on the spatial distribution pattern of microorganisms and their driving factors, but there is less research on the process of community construction of microorganisms at different spatial scales.
    based on this, the Research Group of the Nanjing Soil Research Institute of the Chinese Academy of Sciences collected 243 soil samples in November 2014 in the wheat fields of the North China Plain, with a maximum span of 1092 km between the sample points.
    used high-throughput sequencing and bioinformatics analysis techniques to study the community composition, diversity and spatial distribution of soil bacteria, and used community construction analysis methods (beta NTI) and spatial scale analysis methods (PCNM) to analyze the process of community construction of soil bacteria in the North China Plain at different spatial scales; The results of
    show that the soil bacterial community of wheat field in the North China Plain is constructed mainly in the determination process when the space distance is greater than 900 km, while the random process is mainly in the 150-900 km range, while the community construction of soil bacteria in the Qinghai-Tibet Plateau is mainly in the 130-1200km range, which shows that the construction of the soil microbiome of farmland and natural ecosystem is different and has scale dependence. the main reasons for the
    are: the North China Plain is a high-intensity use of farmland ecosystem, crop planting management model is similar, the environmental differences are relatively small, the Qinghai-Tibet Plateau geographical isolation effect is obvious, habitat changes fast, so in a small space range of bacterial community construction shows a strong deterministic process.
    the first study of the community construction model of soil microbes in the North China Plain at different spatial scales, and the results provide a scientific basis for evaluating the agronomic and ecological effects of farmland soil in China at the regional scale from the perspective of soil microbiology.
    research published in Microbiome.
    .
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