@article{fdi:010075323,
  title = {{A} generic modeling of fire impact in a tree-grass savana model},
  author = {{T}chuint{\'e} {T}amen, {A}. and {T}ewa, {J}.{J}. and {C}outeron, {P}ierre and {B}owong, {S}. and {D}umont, {Y}.},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e propose and study a model for tree-grass interactions in the context of savannas which are subjected to fire pressure. {S}everal theoretical models in the literature which have highlighted the impact of fire on tree-grass interactions did not explicitly deal with the indirect feedback of dry grass biomass onto tree dynamics through fire intensity and frequency. {T}he novelty in our work is to consider a fairly generic modeling of fire impact on woody biomass by means of a family of increasing and bounded functions of grass biomass. {T}he characteristic feature of this family of functions is that, it could include several forms: linear as well as non-linear ones (sigmoidal or not). {S}ince the nonlinear shape brings more diverse results than the previous attempts using a linear function, it could be used to show that several vegetation equilibria exist with some of them showing tree-grass coexistence features.{W}e show that the number of equilibria with both grass and trees depends on the choice of the fire impact function. {W}e also established thresholds defining the stability domains of the equilibria and highlighted some bifurcation parameters to provide numerical simulations complying with the theoretical properties of the model.},
  keywords = {{SAVANE} {BOISEE} ; {FEU} {DE} {BROUSSE} ; {FONCTIONNEMENT} {DE} {L}'{ECOSYSTEME} ; {DYNAMIQUE} {DE} {VEGETATION} ; {MODELISATION} ; {ANALYSE} {STATISTIQUE} ; {AFRIQUE} {SUBSAHARIENNE} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{B}iomath},
  volume = {3},
  numero = {},
  pages = {art. no 1407191 [18 ]},
  ISSN = {1314-684{X}},
  year = {2014},
  DOI = {10.11145/214},
  URL = {https://www.documentation.ird.fr/hor/fdi:010075323},
}