@article{fdi:010097437,
  title = {{H}ow sustainable land management practices may impact water resources in the {S}ahel : insights from an integrated critical zone modelling approach},
  author = {{T}absoba, {M}. and {H}ector, {B}asile and {C}ohard, {J}. {M}. and {V}andervaere, {J}. {P}. and {W}arzagan, {A}. {I}. and {P}eugeot, {C}hristophe},
  editor = {},
  language = {{ENG}},
  abstract = {{S}tudy region: {T}he study was conducted in the south-western {S}ahel of {N}iger, within a small experimental catchment of the {AMMA}-{CATCH} observatory characterized by degraded soils, short high-intensity rainfall events, and increasing implementation of sustainable land management ({SLM}) practices such as micro-dams. {S}tudy {F}ocus: {T}his study investigates the hydrological impacts of {SLM} practices on runoff generation, soil water storage, and groundwater recharge using the integrated hydrological model {P}ar{F}low-{CLM} combined with field observations. {T}he model was first calibrated under preintervention conditions using event-based runoff observations. {M}icro-dams were then introduced using equivalent {M}anning roughness coefficients calibrated against observations to represent their hydraulic effects on a {S}ahelian hillslope. {N}ew hydrological insights for the region: {R}esults show that the model reproduces the observed reduction in event-based runoff induced by {SLM} practices. {U}nder the 8% managed-area scenario, corresponding to the 8% field implementation stage (0.64 ha over the modeled 8 ha hillslope), runoff coefficients decreased from 0.24 to 0.13 in observations and from 0.25 to 0.17 in simulations. {S}imulations also indicate enhanced infiltration and increased event-based soil water storage in the upper soil profile, reducing soil moisture stress during dry periods. {S}imulations suggest that hillslope-scale, diffuse groundwater recharge increased from about 15-17% of annual rainfall, while hillslope-scale runoff declined from 15% to 9%. {T}hese findings highlight the potential of {SLM} interventions to improve water availability and hydrological resilience in {S}ahelian environments.},
  keywords = {{L}and degradation ; {S}ustainable {L}and {M}anagement ; {I}ntegrated hydrological modeling ; {P}ar{F}low-{CLM} ; {W}ater balance ; {S}ahel ; {NIGER} ; {ZONE} {SAHELIENNE}},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology : {R}egional {S}tudies},
  volume = {66},
  numero = {},
  pages = {103633 [18 p.]},
  year = {2026},
  DOI = {10.1016/j.ejrh.2026.103633},
  URL = {https://www.documentation.ird.fr/hor/fdi:010097437},
}