soil oxygen diffusion rate

Fick's law, soil oxygem diffusion rate

What is soil oxygen diffusion rate?

soil oxygen diffusion rate meaning in Soil Science terminology / glossary / dictionary is:
(i) The rate of diffusion of oxygen through soil as defined by Fick’s law. (ii) A measurement of diffusion governed oxygen reduction rate at the surface of platinum microelectrodes used to assess the oxygen supplying ability of the soil relative to the needs of plant roots, usually referred to as soil ODR.

 

reference: Soil Science Society of America