@article{fdi:010042157,
  title = {{T}he impact of land use change on soil water holding capacity and river flow modelling in the {N}akambe {R}iver, {B}urkina-{F}aso},
  author = {{M}ah{\'e}, {G}il and {P}aturel, {J}ean-{E}mmanuel and {S}ervat, {E}ric and {C}onway, {D}. and {D}ezetter, {A}lain},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he annual hydrological regime of the {N}akambe {R}iver shows substantial changes during the period 1955 - 1998 with a shift occurring around 1970. {F}rom 1970 to the mid-1990s, despite a reduction in rainfall and an increase in the number of dams in the basin, average runoff and maximum daily discharges increased. {T}his paper reviews the hydrological behaviour of the {N}akambe {R}iver from 1955 to 1998 and examines the potential role of land use change on soil water holding capacity ({WHC}) in producing the counter-intuitive change in runoff observed after 1970. {W}e compare the results of two monthly hydrological models using different rainfall, potential evapotranspiration and {WHC} data sets. {M}odel simulations with soil {WHC} values modified over time based upon historical maps of land use, are compared against simulations with a constant value for {WHC}. {T}he extent of natural vegetation declined from 43 to 13% of the total basin area between 1965 and 1995, whilst the cultivated areas increased from 53 to 76% and the area of bare soil nearly tripled from 4 to 11%. {T}he total reduction in {WHC} is estimated to range from 33 to 62% depending on the method used, either considering that the {WHC} values given by the {FAO} stand for the environmental situation in 1965 or before. {T}here is a marked improvement in river flow simulation using the time-varying values of soil {WHC}. {T}he paper ends with a discussion of the role of other factors such as surface runoff processes and groundwater trends in explaining the hydrological behaviour of the {N}akambe {R}iver. ({C}) 2004 {E}lsevier {B}.{V}. {A}ll rights reserved.},
  keywords = {land use ; soil water holding capacity ; hydrological modelling ; {N}akambe {R}iver ; {B}urkina {F}aso},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology},
  volume = {300},
  numero = {1-4},
  pages = {33--43},
  ISSN = {0022-1694},
  year = {2005},
  DOI = {10.1016/j.jhydrol.2004.04.028},
  URL = {https://www.documentation.ird.fr/hor/fdi:010042157},
}