@article{fdi:010064650,
  title = {{E}xorheism growth as an explanation of increasing flooding in the {S}ahel},
  author = {{M}amadou, {I}. and {G}autier, {E}. and {D}escroix, {L}uc and {N}oma, {I}. and {M}oussa, {I}. {B}. and {M}aiga, {O}. {F}. and {G}enthon, {P}ierre and {A}mogu, {O}. and {A}bdou, {M}. {M}. {L}. and {V}andervaere, {J}. {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{F}or two decades, the {N}iamey area, in {N}iger, has undergone the creation of several new wadis ("koris" in hausa, the most spoken language in {W}est {A}frica). {T}he significant runoff increase in the {S}ahelian reach of {N}iger river makes us interested in the behavior of the basins of the tributary koris of {N}iger {R}iver in the {N}iamey area, in {N}iger. {T}hese koris generally formed during a single storm event, within depressions previously occupied by ponds; these ponds are overflown creating a new "kori". {T}his study examines in detail the causes of this new exorheism mechanism. {T}he main explanation of this evolution has been determined as being the strong runoff increase, related to an extension of crusted soils due to agricultural practices, mostly the reduction of fallow duration. {T}he degradation of their structural stability leads to crusting and a strong reduction of their hydraulic conductivity. {T}his is linked to water and sediment balance at the catchment scale.},
  keywords = {{S}ahel ; {E}xorheism ; {E}ndorheism ; {R}unoff coefficient ; {H}orton-type runoff ; {NIGER} ; {NIAMEY} ; {SAHEL}},
  booktitle = {},
  journal = {{C}atena},
  volume = {131},
  numero = {},
  pages = {130--139},
  ISSN = {0341-8162},
  year = {2015},
  DOI = {10.1016/j.catena.2015.03.017},
  URL = {https://www.documentation.ird.fr/hor/fdi:010064650},
}