Soil respiration

From Wikipedia, the free encyclopedia

Soil respiration normally refers to the total CO2 efflux at the soil surface.

It comprises a combination of processes:

  • Biotic processes, which include respiration of the rhizosphere, microbes and fauna
  • Chemical processes including oxidation of soil minerals, which can be pronounced at high temperature
  • Physical processes, which include carbon dioxide degassing of the soil and transport of carbon dioxide to the soil's surface

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