HUBEI AGRICULTURAL SCIENCES ›› 2018, Vol. 57 ›› Issue (22): 39-42.doi: 10.14088/j.cnki.issn0439-8114.2018.22.012

• Resource & Environment • Previous Articles     Next Articles

The Character of Soil Microorganism and Regulation of Biological Nitrogen Fixation in Karst Land

TANG Dan1, YAN Li2   

  1. 1.Guangxi Yijiang Environmental Protection Technology Co.,Ltd.,Nanning 530007,China;
    2.College of Forestry,Guangxi University,Nanning 530004,China
  • Received:2018-05-15 Online:2018-11-25 Published:2019-12-19

Abstract: Used biological nitrogen fixation as the entry point, the characteristics and functions of nitrogen-fixing microorganisms in karst ecosystem were expounded by means of literature mining. The relationship between soil microbial and nitrogen fixation and vegetation and soil in the process of rock desertification restoration in karst area was discussed. The regulation of soil microbes in the treatment of rocky desertification was explained. The results showed that different rocky desertification stages in karst area had different soil microbial characteristics, and their relationship with soil physical and chemical properties and vegetation types was dynamic, and soil microbes play a leading role in regulating soil “nitrogen and phosphorus”.

Key words: karst, rocky desertification, soil microorganism, biological nitrogen fixation, rhizobium

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