%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Yira, Y.
%A Bossa, Y.A.
%A Keita, A.
%A Fusillier, J.L.
%A Serpantié, Georges
%A Yaméogo, B. T.
%A Idrissou, M.
%A Lidon, B.
%T Failure of inland valleys development : a hydrological diagnosis of the Bankandi valley in Burkina Faso
%D 2019
%L fdi:010076896
%G ENG
%J Modeling Earth Systems and Environment
%@ 2363-6211
%K BURKINA FASO
%K IOBA PROVINCE ; BANKANDI
%M ISI:000491437600044
%N 4
%P 1733-1741
%R 10.1007/s40808-019-00628-5
%U https://www.documentation.ird.fr/hor/fdi:010076896
%> https://www.documentation.ird.fr/intranet/publi/depot/2019-11-19/010076896.pdf
%V 5
%W Horizon (IRD)
%X Several developed inland valleys for rice production were abandoned due to poor design or implementation. The Bankandi inland valley (BIV) is a contour bunds system developed in 2006 by a development project, currently experiencing a sys-tematic waterlogging. This study assessed: (1) the waterlogging vs. changing hydro-climatic conditions relationship; (2) the hydrological design and implementation of water control infrastructures; and (3) how digital elevation models (DEMs) data could be used for inland valleys development. To investigate the waterlogging vs. changing hydro-climatic conditions (precipitation and discharge), the conceptual HBV model was applied; coupled with break and trend detections tests. To evaluate the accuracy of the location of drainage flume and contour bunds, a topographic survey using a D-GPS was per-formed. To explore free DEMs as support tool in the development of inland valley, the Shuttle Radar Topography Mission 1 and the Advanced Spaceborne Thermal Emission and Reflection Radiometer 1, were used. The results show that: (1) the waterlogging was not related to changing environmental conditions; (2) major flaws including bunds not implemented on contour lines contribute to the waterlogging; (3) free DEMs were not accurate enough for valley development. The overall diagnostic of BIV entails conducting basic hydrological investigations prior to implementation.
%$ 062 ; 098 ; 126