Importance of Microorganisms for Soil Aggregation

  • Jean-Luc Chotte
Part of the Soil Biology book series (SOILBIOL, volume 3)

5 Conclusion

A large number of papers are devoted to characterizing and understanding the aggregate formation-stabilization processes. Most of the papers concern the nature of the microbiological factors. They support the role, over and over again, of soil microorganisms. They emphasize the interactions between these microbial factors in aggregation and reveal the importance of complex systems with more than one agent and one process:
  • bacteria versus fungi biomass,

  • the growth of fungi and their dependence on roots and plant debris for their energy source,

  • the importance of fungal and bacterial metabolites and exudates in adsorptive reactions with mineral particles,

  • the distribution of these metabolites through the soil pore systems

It is all an energy-driven process. Therefore, any strategy aims at improving the impact of soil microorganism on soil structure should take into account the allocation of carbon inputs that fuel these biological processes.


Arbuscular Mycorrhizal Fungus Soil Biol Organic Amendment Aggregate Stability Soil Aggregation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Jean-Luc Chotte
    • 1
  1. 1.Laboratoire d’Ecologie Microbienne des Sols UR Ibis R083Centre ISRA-IRD Bel AirDakarSénégal

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