Climatic and anthropogenic impacts on the flow regime of the Nakambe River in Burkina Faso

G. Mahe; A Dray; J. Paturel; A Cres; F Kone; M Manga; F N Cres; J Djoukam; A Maiga; M  Ouedraogo; Declan Conway; E. Servat

Climatic and anthropogenic impacts on the flow regime of the Nakambe River in Burkina Faso

G. Mahe, A Dray, J. Paturel, A Cres, F Kone, M Manga, F N Cres, J Djoukam, A Maiga, M Ouedraogo, Declan Conway, E. Servat

School of Global Development

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

The annual hydrological regime of the Nakambe River shows substantial changes during the period 1955 to 1998 with a shift occurring around 1970. From 1970 to the mid 1990s, despite a reduction in rainfall and an increase in the number of dams, runoff increased, including maximum daily discharges, and a delay of several weeks in the timing of peak flows occurred. To assess the impact of land-use change on soil water holding capacity (WHC) during this period we compare the results of two monthly hydrological models using several different rainfall, potential evapotranspiration (PE) and WHC data sets. Soil WHC values are modified over time using historical maps of land use, and compared with a constant value for WHC over time. There is a moderate improvement in flow simulation using the varying values of soil WHC.

Original language	English
Pages (from-to)	69-76
Number of pages	8
Journal	IAHS-AISH Publication
Volume	274
Publication status	Published - 2002

Keywords

Burkina Faso
Hydrological modelling
Land use
Sahel
Soil water holding capacity

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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title = "Climatic and anthropogenic impacts on the flow regime of the Nakambe River in Burkina Faso",

abstract = "The annual hydrological regime of the Nakambe River shows substantial changes during the period 1955 to 1998 with a shift occurring around 1970. From 1970 to the mid 1990s, despite a reduction in rainfall and an increase in the number of dams, runoff increased, including maximum daily discharges, and a delay of several weeks in the timing of peak flows occurred. To assess the impact of land-use change on soil water holding capacity (WHC) during this period we compare the results of two monthly hydrological models using several different rainfall, potential evapotranspiration (PE) and WHC data sets. Soil WHC values are modified over time using historical maps of land use, and compared with a constant value for WHC over time. There is a moderate improvement in flow simulation using the varying values of soil WHC.",

keywords = "Burkina Faso, Hydrological modelling, Land use, Sahel, Soil water holding capacity",

author = "G. Mahe and A Dray and J. Paturel and A Cres and F Kone and M Manga and Cres, {F N} and J Djoukam and A Maiga and M Ouedraogo and Declan Conway and E. Servat",

year = "2002",

language = "English",

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pages = "69--76",

journal = "IAHS-AISH Publication",

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TY - JOUR

T1 - Climatic and anthropogenic impacts on the flow regime of the Nakambe River in Burkina Faso

AU - Mahe, G.

AU - Dray, A

AU - Paturel, J.

AU - Cres, A

AU - Kone, F

AU - Manga, M

AU - Cres, F N

AU - Djoukam, J

AU - Maiga, A

AU - Ouedraogo, M

AU - Conway, Declan

AU - Servat, E.

PY - 2002

Y1 - 2002

N2 - The annual hydrological regime of the Nakambe River shows substantial changes during the period 1955 to 1998 with a shift occurring around 1970. From 1970 to the mid 1990s, despite a reduction in rainfall and an increase in the number of dams, runoff increased, including maximum daily discharges, and a delay of several weeks in the timing of peak flows occurred. To assess the impact of land-use change on soil water holding capacity (WHC) during this period we compare the results of two monthly hydrological models using several different rainfall, potential evapotranspiration (PE) and WHC data sets. Soil WHC values are modified over time using historical maps of land use, and compared with a constant value for WHC over time. There is a moderate improvement in flow simulation using the varying values of soil WHC.

AB - The annual hydrological regime of the Nakambe River shows substantial changes during the period 1955 to 1998 with a shift occurring around 1970. From 1970 to the mid 1990s, despite a reduction in rainfall and an increase in the number of dams, runoff increased, including maximum daily discharges, and a delay of several weeks in the timing of peak flows occurred. To assess the impact of land-use change on soil water holding capacity (WHC) during this period we compare the results of two monthly hydrological models using several different rainfall, potential evapotranspiration (PE) and WHC data sets. Soil WHC values are modified over time using historical maps of land use, and compared with a constant value for WHC over time. There is a moderate improvement in flow simulation using the varying values of soil WHC.

KW - Burkina Faso

KW - Hydrological modelling

KW - Land use

KW - Sahel

KW - Soil water holding capacity

M3 - Article

VL - 274

SP - 69

EP - 76

JO - IAHS-AISH Publication

JF - IAHS-AISH Publication

SN - 0144-7815

ER -