An Alternative Strategy for Mitigating the Effect of Rainfall Variability in Burkinabe Sahel

This study was carried out in the Burkinabe Sahel aimed at studying contribution of the practice of supplemental irrigation (SI) via excavated rainwater harvesting basin (RWHB) for mitigating effect of rainfall variability on agricultural production and impact of these RWHB on the dynamics of the wa...

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Bibliographic Details
Published in:Journal of water resource and protection 2015-11, Vol.7 (16), p.1318-1330
Main Authors: Doto, Vivien Chaim, Yacouba, Hamma, Niang, Dial, Lahmar, Rabah
Format: Article
Language:English
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Summary:This study was carried out in the Burkinabe Sahel aimed at studying contribution of the practice of supplemental irrigation (SI) via excavated rainwater harvesting basin (RWHB) for mitigating effect of rainfall variability on agricultural production and impact of these RWHB on the dynamics of the water table. This study was conducted during two growing seasons (2013 and 2014) and used a test plot cultivated in corn and fitted out with measuring instruments to analyze water transfer in the soil-plant-atmosphere system on the one hand and the atmosphere-RWHB-water table system on the other hand. Results showed that water stored in the RWHB allowed applying up to three SI, and increased corn yield up to 24% and 26% respectively in 2013 and 2014. Water flow under RWHB during the simulation period showed that dynamic of the saturated front depended on the magnitude of the water depth in the RWHB and the hydrodynamic characteristics of the underlying layers.
ISSN:1945-3094
1945-3108
DOI:10.4236/jwarp.2015.716107