@article{fdi:010091545,
  title = {{A}nalysis of rainfed cereal-legume mixture cropping water productivity in {L}ebna catchment, {C}ap-{B}on, {T}unisia},
  author = {{M}ekki, {I}. and {Z}itouna-{C}hebbi, {R}. and {B}enyoussef, {S}. and {B}enabdelghaffar, {A}. and {B}oukari, {M}. and {J}acob, {F}r{\'e}d{\'e}ric and {A}lbergel, {J}ean},
  editor = {},
  language = {{ENG}},
  abstract = {{U}nder climate change conditions, optimizing water resources management in rainfed agricultural production systems requires the reasonable choice of crops. {I}n this context, the adoption of crops diversification is promoted to increase the agricultural production and the added value per cubic meter of rain water (green water) used by crops. {C}ontributing, therefore, to increase agricultural production and to preserve soil and water resources. {T}he objective of this study is: (i) to identify mixed crops within agricultural fields and, (ii) to evaluate the biomass production and the water productivity in the {L}ebna watershed ({C}ap-{B}on, {T}unisia) using remote sensing and field measurements. {T}he study area, covering 210 km2, is characterized by the predominant of cereals, legumes and fodder cropping systems. {T}he experiments allowed the quantification of crop evapotranspiration and the observed biomass production at the agricultural field plots. {T}he use of the sentinel images and the observations at different agricultural fields allowed to produce {NDVI} maps. {T}he results first confirmed a good correlation between biomass production and {NDVI} values. {T}he exponential relationships showed a values of {R}2 greater than 0.7. {T}he use of sentinel images and {GIS} allowed to compute water productivity from field to watershed scale.  {T}he results revealed a considerable spatial variation in water productivity values for different crops. {C}ompared to a single crop, the cereal-legume mixture cropping improved the water productivity. {T}he maximum value with 9.07 kg m 3 is observed for the mixture crops. {T}he lowest value (0.12 to 2.40 kg m 3) was obtained for the cereal crop. {T}hese results help to recommend adaptation measures in agricultural production systems to climate change.},
  keywords = {{ALIMENTATION} {EN} {EAU} ; {RESSOURCES} {EN} {EAU} ; {CULTURE} ; {CEREALE} ; {LEGUMINEUSE} ; {EVAPOTRANSPIRATION} ; {METHODOLOGIE} ; {COLLECTE} {DE} {DONNEES} ; {ANALYSE} {DE} {DONNEES} ; {BASSIN} {VERSANT} ; {CHANGEMENT} {CLIMATIQUE} ; {GESTION} {DE} {L}'{EAU} ; {TUNISIE} ; {CAP} {BON} {REGION} ; {LEBNA} {BASSIN} {VERSANT} ; {NABEUL} {GOUVERNORAT}},
  booktitle = {{IAHS}2022 - {H}ydrological sciences in the {A}nthropocene},
  journal = {{P}roceedings of {IAHS}},
  volume = {385},
  numero = {},
  pages = {313--317},
  ISSN = {2199-899{X}},
  year = {2024},
  DOI = {10.5194/piahs-385-313-2024},
  URL = {https://www.documentation.ird.fr/hor/fdi:010091545},
}