@article{fdi:010061982,
  title = {{S}imulating microbial degradation of organic matter in a simple porous system using the 3-{D} diffusion-based model {MOSAIC}},
  author = {{M}onga, {O}livier and {G}arnier, {P}. and {P}ot, {V}. and {C}oucheney, {E}. and {N}unan, {N}. and {O}tten, {W}. and {C}henu, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his paper deals with the simulation of microbial degradation of organic matter in soil within the pore space at a microscopic scale. {P}ore space was analysed with micro-computed tomography and described using a sphere network coming from a geometrical modelling algorithm. {T}he biological model was improved regarding previous work in order to include the transformation of dissolved organic compounds and diffusion processes. {W}e tested our model using experimental results of a simple substrate decomposition experiment (fructose) within a simple medium (sand) in the presence of different bacterial strains. {S}eparate incubations were carried out in microcosms using five different bacterial communities at two different water potentials of -10 and -100 cm of water. {W}e calibrated the biological parameters by means of experimental data obtained at high water content, and we tested the model without changing any parameters at low water content. {S}ame as for the experimental data, our simulation results showed that the decrease in water content caused a decrease of mineralization rate. {T}he model was able to simulate the decrease of connectivity between substrate and microorganism due the decrease of water content.},
  keywords = {},
  booktitle = {},
  journal = {{B}iogeosciences},
  volume = {11},
  numero = {8},
  pages = {2201--2209},
  ISSN = {1726-4170},
  year = {2014},
  DOI = {10.5194/bg-11-2201-2014},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061982},
}