Earth Science Frontiers ›› 2022, Vol. 29 ›› Issue (3): 189-199.DOI: 10.13745/j.esf.sf.2022.1.32

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Microbial fields and multi-field coupling in organic contaminated soil-groundwater systems

XIONG Guiyao1(), WU Jichun1,*(), YANG Yun2, ZHU Xiaobin1, LIU Mengwen1, SONG Yalin1   

  1. 1. Ministry of Education Key Laboratory of Surficial Geochemistry, School of Earth Sciences and Engneering, Nanjing University, Nanjing 210046, China
    2. School of Earth Sciences and Engneering, Hohai University, Nanjing 211100, China
  • Received:2021-12-01 Revised:2022-01-16 Online:2022-05-25 Published:2022-04-28
  • Contact: WU Jichun


Understanding the impact of microbial communities on the migration and transformation of organic pollutants is the basis for efficient remediation and treatment of organic contaminated sites. Microorganisms in nature exist as “fields” via coupling with hydrodynamic field, temperature field, chemical field, etc. to exert their functions in the process of maintaining ecological stability and material circulation. The bibliometric analysis results revealed that in recent years, researches on microorganisms and organic matter have been mainly focused on three aspects: microbial community structure, biodegradation of organic matter, and migration and transformation of organic matter, along with a series of related studies; whereas only few studies have been conducted to quantitatively characterize microorganisms in the form of “fields” for their role in material circulation-transformation and maintenance of ecological stability. Hence, we sought to provide a definition for microbial field, and proposed a conceptual model and a mathematical model of microbial field in organic contaminated site. Furthermore, we explored the main influencing factors and mechanism of microbial field, and constructed a constitutive model of microbial field coupled with hydrodynamic field, temperature field and chemical field. Finally, the prospects for future research on microbial field were proposed.

Key words: microbial field, site pollution, migration and transformation of organic pollutants, multi-field coupling

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