@article{fdi:010070880,
  title = {{A}groecological transition : a viability model to assess soil restoration},
  author = {{D}urand, {M}arie-{H}{\'e}l{\`e}ne and {D}esilles, {A}. and {S}aint-{P}ierre, {P}. and {A}ngeon, {V}. and {O}zier-{L}afontaine, {H}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}ince the 1950s, intensive and specialized agricultural systems using a few select species and relying heavily on agrochemical inputs have enabled a huge increase in food production. {H}owever, in parallel, drawbacks appeared including biodiversity loss, greenhouse gas emission, erosion, and water pollution. {T}oday shifting farming systems to mitigate soil degradation trends is indispensable. {U}sing viability theory, we propose a dynamic model of the sequence of agricultural productions and practices that can be implemented in the long term to restore soil quality while respecting a set of agronomic and economic constraints. {T}he paths to soil restoration vary depending on agronomic and economic constraints, the time available for restoration, the initial soil conditions, and investment capacities. {E}conomic valuation of the minimum cost of restoration shows that the agroecological transition may be costly and that farmers can have difficulty meeting the costs, thus raising the question of how the cost of agroecological transition is to be shared. {R}ecommendations for {R}esource {M}anagers {T}he mathematical viability theory is used to design a new model of farm management to assess possibilities and cost of the agroecological transition more precisely the successive choices of crops and agricultural practices intended to restore topsoil quality. {T}his discrete dynamical model has an irregular time step corresponding to agricultural cycles and to dates of parcel release retrieved by using an inverse approach. {T}he agronomic and economic constraints are mixed depending both on states and controls. {T}he economic constraints are imposed on a monthly time step while states and controls variables evolve with the agricultural cycles what best fit the economic situation farmers must face. {T}he trajectory selection criteria is the minimum cost of restoration. {O}ptimal viable strategies depend on initial soil quality and available capital, time of exercise, constraints, and of crops and practices diversification. {C}omputations were made with a software specially developed for this study using data sets collected in the {F}rench {W}est {I}ndies.},
  keywords = {agroecological transition ; farming systems ; {F}rench {W}est {I}ndies ; mixed statecontrol constraints ; restoration cost ; soil quality indicator ; soil restoration ; viability theory ; {ANTILLES} {FRANCAISES}},
  booktitle = {},
  journal = {{N}atural {R}esource {M}odeling},
  volume = {30},
  numero = {3},
  pages = {e12134 [29 p.]},
  ISSN = {0890-8575},
  year = {2017},
  DOI = {10.1111/nrm.12134},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070880},
}