@article{fdi:010080386,
  title = {{A}re the {F}outa {D}jallon {H}ighlands still the water tower of {W}est {A}frica ?},
  author = {{D}escroix, {L}uc and {F}aty, {B}. and {M}anga, {S}. {P}. and {D}iedhiou, {A}. {B}. and {L}ambert, {L}. {A}. and {S}oumare, {S}. and {A}ndrieu, {J}. and {O}gilvie, {A}ndrew and {F}all, {A}. and {M}ah{\'e}, {G}il and {D}iallo, {F}. {B}. {S}. and {D}iallo, {A}. and {D}iallo, {K}. and {A}lbergel, {J}ean and {T}animoun, {B}. {A}. and {A}madou, {I}. and {B}ader, {J}ean-{C}laude and {B}arry, {A}. and {B}odian, {A}. and {B}oulvert, {Y}ves and {B}raquet, {N}. and {C}outure, {J}. {L}. and {D}acosta, {H}. and {D}ejacquelot, {G}. and {D}iakite, {M}. and {D}iallo, {K}. and {G}allese, {E}. and {F}erry, {L}uc and {K}onate, {L}. and {N}nomo, {B}. {N}. and {O}livry, {J}ean-{C}laude and {O}range, {D}idier and {S}akho, {Y}. and {S}ambou, {S}. and {V}andervaere, {J}. {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A} large share of surface water resources in {S}ahelian countries originates from {G}uinea's {F}outa {D}jallon highlands, earning the area the name of "the water tower of {W}est {A}frica". {T}his paper aims to investigate the recent dynamics of the {F}outa {D}jallon's hydrological functioning. {T}he evolution of the runoff and depletion coefficients are analyzed as well as their correlations with the rainfall and vegetation cover. {T}he latter is described at three different space scales and with different methods. {T}wenty-five years after the end of the 1968-1993 major drought, annual discharges continue to slowly increase, nearly reaching a long-term average, as natural reservoirs which emptied to sustain streamflows during the drought have been replenishing since the 1990s, explaining the slow increase in discharges. {H}owever, another important trend has been detected since the beginning of the drought, i.e., the increase in the depletion coefficient of most of the {F}outa {D}jallon upper basins, as a consequence of the reduction in the soil water-holding capacity. {A}fter confirming the pertinence and significance of this increase and subsequent decrease in the depletion coefficient, this paper identifies the factors possibly linked with the basins' storage capacity trends. {T}he densely populated areas of the summit plateau are also shown to be the ones where vegetation cover is not threatened and where ecological intensification of rural activities is ancient.},
  keywords = {{F}outa {D}jallon ; water tower ; depletion (or recession) coefficient ; runoff coefficient ; soil water holding capacity ; basement ; sandstone ; {F}ula society ; {AFRIQUE} {DE} {L}'{OUEST} ; {GUINEE} ; {ZONE} {SAHELIENNE} ; {FOUTA} {DJALLON} {MONT}},
  booktitle = {{M}ultiscale impacts of anthropogenic and climate changes on tropical and mediterranean hydrology},
  journal = {{W}ater},
  volume = {12},
  numero = {11},
  pages = {2968 [31 ]},
  year = {2020},
  URL = {https://www.documentation.ird.fr/hor/fdi:010080386},
}