@article{fdi:010082146,
  title = {{I}mpacts of climate and environmental changes on water resources : a multi-scale study based on {N}akanbe nested watersheds in {W}est {A}frican {S}ahel},
  author = {{G}bohoui, {Y}. {P}. and {P}aturel, {J}ean-{E}mmanuel and {T}azen, {F}. and {M}ounirou, {L}. {A}. and {Y}onaba, {R}. and {K}arambiri, {H}. and {Y}acouba, {H}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}tudy region: {N}akanbe {R}iver watershed in the {W}est {A}frica {S}ahel ({WAS}). {S}tudy focus: {T}his study aims to better understand the hydrological behavior of {WAS} watersheds, which experienced {S}ahelian hydrological paradoxes ({SHP}). {B}udyko framework was employed to evaluate the impact of climate change, environmental change and climate-environment interaction on surface runoff change in seven nested watersheds (38 - 21,178 km(2)) over the period 1965-2018. {N}ew hydrological insights for the region: {B}ased on time-series stationarity statistical tests, the study period was divided into one baseline period (1965-1977) and three impacted periods (1978 1994, 1995 2006 and 2007 2018). {C}ompared to the baseline period, the period 1978 1994 was characterized by a decrease in precipitation and an increase in runoff (first {SHP}). {D}uring the period 1995-2018, the runoff coefficient, which increased despite the observed regreening, was interpreted as evidence of the second {SHP}. {T}he impact study showed that environmental change was the main driver of the first {SHP} (contribution reached +175 %), then climate-environment interaction became increasingly dominant during the second {SHP} (contribution reaching +68 %). {T}he watersheds evolution in {B}udyko framework showed that the {F}u {B}udyko-type model parameter appears to be a good indicator of soil water holding capacity spatio-temporal variability. {O}ur results highlight the consequences of climate and environmental changes on surface runoff in the {S}ahelian context and might help in developing informed land management and restoration strategies to control runoff coefficients.},
  keywords = {{C}limate change ; {E}nvironmental change ; {C}limate-environment interaction ; {B}udyko framework ; {S}ahelian hydrological paradox ; {N}akanbe {R}iver watershed ; {BURKINA} {FASO} ; {ZONE} {SAHELIENNE} ; {NKANBE} {BASSIN}},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology : {R}egional {S}tudies},
  volume = {35},
  numero = {},
  pages = {100828 [22 p.]},
  year = {2021},
  DOI = {10.1016/j.ejrh.2021.100828},
  URL = {https://www.documentation.ird.fr/hor/fdi:010082146},
}