International Journal of Agricultural Policy and Research

Original Research Article

Characterization of the hydrodynamics of an alluvial plain: The case of Karfiguela in Burkina Faso

Nestor Fiacre COMPAORE1, Samuel NAKOLENDOUSSE1*, Suzanne YAMEOGO1 and Sayoba KAFANDO1


1Department of Earth Sciences, Georessources Laboratory, University Joseph KI-ZERBO, Burkina Faso

*Corresponding Author Email: altesseroi1(at)yahoo.fr

Nestor Fiacre COMPAORE

Samuel NAKOLENDOUSSE

Suzanne YAMEOGO

Sayoba KAFANDO


Article Number: IJAPR.20.009  |   Pages: 79-96  |   Vol. 8 (4), August 2020   |   DOI: https://doi.org/10.15739/IJAPR.20.009

 Received: April 15, 2020  Accepted: July 23, 2020  Published: August 18, 2020

Abstract

The study was carried out on the alluvial plain of Karfiguela, in the far south-west of Burkina Faso as part of the Support Program for Irrigation Development (PADI). The current study made it possible to determine the hydrodynamic properties, the directions and directions of flow of the Karfiguela alluvial plain aquifer.The hydraulic shock test method known as the “slug test” was chosen for the determination of the hydraulic conductivity, supported by two analysis methods: the Hvorslev method and the Bouwer and Rice method. The hydraulic conductivity values obtained were compared, and subsequently, those obtained by the method of Bouwer and Rice were considered for interpretations. It can therefore be noted that the average conductivity values of the sites are between 6, 25.10-5 m.s-1 and 3.81.10-6 m.s-1. The maximum value obtained is 4.31.10-4 m.s-1 and the minimum value is 9, 74.10-9 m.s-1. The analysis of the nature of the material samples extracted from the micropiezometers shows a concordance with the values obtained.In order to determine the directions and flow directions of the aquifer, monitoring of static levels were carried out from March 2013 to December 2016. This determination of directions and flow directions was made between March and April 2013 that is to say during the low water period (dry season). The static levels made it possible to calculate the piezometric levels thanks to the altitudes determined with Differential GPS (DGPS) surveys. The resulting piezometric surface shows a general flow that goes from the North to the Center and from the South to the Center. The piezometric maps show that the water table supplies the river in all the sites. Hence, zero flow limits and potential limits appear along the plain.

Keywords:

Alluvial plain, hydraulic conductivity, flow directions (direction of flow), piezometric levels, Burkina Faso(West Africa) of Karfiguela (Banfora)

How to Cite this Article

Compaore NF, Nakolendousse S, Yameogo S, Kafando S(2020). Characterization of the hydrodynamics of an alluvial plain: The case of Karfiguela in Burkina Faso.Int. J. Agric. Pol. Res. 8(4):79-96.

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