@article{fdi:010091985,
  title = {{N}umerical exploration of the impact of hydrological connectivity on rainfed annual crops in {M}editerranean hilly landscapes},
  author = {{D}houib, {M}. and {M}ol{\'e}nat, {J}. and {P}r{\'e}vot, {L}. and {M}ekki, {I}. and {Z}itouna-{C}hebbi, {R}. and {J}acob, {F}r{\'e}d{\'e}ric},
  editor = {},
  language = {{ENG}},
  abstract = {{W}ithin hilly agricultural landscapes, topography induces lateral transfers of runoff water, so-called interplot hydrological connectivity. {R}unoff water from upstream plots can infiltrate downstream plots, thus influencing the water content in the root zone that drives crop functioning. {T}he impact of runoff on crop functioning can be crucial for optimizing agricultural landscape management strategies. {H}owever, to our knowledge, no study has specifically focused on the impact on crop yield. {T}he current study aims to comprehensively investigate the impact of runoff on crop functioning in the context of {M}editerranean rainfed annual crops. {T}o quantify this impact, we conduct a numerical experiment using the {A}qua{C}rop model and consider two hydrologically connected plots. {T}he experiment explores a range of upstream and downstream agro-pedo-climatic conditions: crop type, soil texture and depth, climate forcing, and the area of the upstream plot. {T}he experiment relies on data collected over the last 25 years in {OMERE}, an environment research observatory in northeastern {T}unisia, and data from literature. {A} key finding in the results is that water supply through hydrological connectivity can enhance annual crop production under semiarid and subhumid climate conditions. {S}pecifically, the results show that the downstream infiltration of upstream runoff has a positive impact on crop functioning in a moderate number of situations, ranging from 16% (wheat) to 33% (faba bean) as the average across above ground biomass and yield. {P}ositive impact is mostly found for higher soil available water capacity and under semiarid and dry subhumid climate conditions, with a significant impact of rainfall intra-annual distribution in relation to crop phenology. {T}hese research needs to be expanded by considering both a wider range of crops and future climate conditions.},
  keywords = {{H}ydrological connectivity ; {R}unoff-runon process ; {W}ater infiltration ; {R}ainfed agriculture ; {A}nnual crops ; {C}rop production ; {M}editerranean ; {TUNISIE} ; {ZONE} {MEDITERRANEENNE}},
  booktitle = {},
  journal = {{A}gronomy for {S}ustainable {D}evelopment},
  volume = {44},
  numero = {6},
  pages = {53 [14 p.]},
  ISSN = {1774-0746},
  year = {2024},
  DOI = {10.1007/s13593-024-00981-5},
  URL = {https://www.documentation.ird.fr/hor/fdi:010091985},
}