@article{fdi:010093392,
  title = {{P}rojection of irrigation water requirement in the south {M}editerranean area using an explicit representation of irrigation processes into a land surface model : case of the {T}ensift catchment ({M}orocco)},
  author = {{M}oucha, {A}. and {J}arlan, {L}ionel and {Q}uintana-{S}egui, {P}. and {B}arella-{O}rtiz, {A}. and {L}e {P}age, {M}ichel and {M}unier, {S}. and {C}hakir, {A}dnane and {B}oone, {A}. and {S}ghrer, {F}. and {C}alvet, {J}. {C}. and {H}anich, {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n semi-arid areas, irrigation represents the largest human footprint on the water cycle. {R}epresenting irrigation in land surface and hydrological models is a challenging task as irrigation decisions depend on environmental, economic and traditional knowledge factors. {T}he objective of this work is twofold: (1) to evaluate the performance of the new irrigation module integrated into the {I}nteractions between {S}oil, {B}iosphere, and {A}tmosphere ({ISBA}) model and (2) to assess the future trajectories of agricultural water use considering both climate and land use change. {T}he evaluation of the new irrigation module in the {ISBA} model is done by: (1) comparing the observed and predicted fluxes by the {ISBA} model, with and without the activation of the irrigation module, and (2) comparing the irrigation water inputs at the level of irrigated perimeters. {T}he evaluation shows that the integration of the new irrigation scheme in {ISBA} significantly improves the latent heat flux ({LE}) predictions for the period 2004-2014, compared to the model without this scheme. {C}onsidering several flux stations, the {LE} flux bias was reduced from -60 {W}/m2 for the model without irrigation to -15 {W}/m2. {T}he evaluation at the irrigated perimeter scale highlights the ability of the irrigation model to reproduce the overall magnitude and seasonality of observed irrigation water quantities despite a positive bias. {T}he agricultural water use was then projected considering two climate scenarios and two scenarios of land use change based on the actual trend of conversion to tree crops in response to the large subsidy attributed for the conversion to drip irrigation since 2008. {I}t is shown that (1) irrigation water use could almost double for the more extreme scenarios and (2) that most of this drastic increase is attributed to land use change, including irrigation intensification and expansion. {W}ithin this context, the results presented in this study highlight the side effect of conversion to drip irrigation largely documented in the literature and open perspectives for making informed decisions for sustainable water management at the watershed level.},
  keywords = {{MAROC} ; {ZONE} {MEDITERRANEENE} ; {ZONE} {SEMIARIDE}},
  booktitle = {},
  journal = {{PL}o{S} {W}ater},
  volume = {4},
  numero = {2},
  pages = {e0000297 [30 p.]},
  year = {2025},
  DOI = {10.1371/journal.pwat.0000297},
  URL = {https://www.documentation.ird.fr/hor/fdi:010093392},
}