ZenToks Publication

CHAPTER 2

Climate risks and evolution of physicochemical parameters of soils of hydro-agricultural developments in the Nariarlé watershed from 1997 to 2022 , Burkina Faso

Abstract/Preface

This study of climatic risks and evolution of the physicochemical parameters of the soils of the irrigation facilities of the Nariarlé watershed, Nakanbé sub-basin in Burkina Faso from 1997 to 2022, was based on documentary exploitation and Results of soil sample analyses according to the coordinates of the 1997 profiles. Irrigation schemes in the Nariarlé watershed are facing risks related to climate change. Their levels of exposure and vulnerability remain very high. The analysis methodology is based on three parts. The objective is to analyze the effects of extreme variations in climatic parameters on the evolution of the physicochemical parameters of soils in irrigation schemes. The samples were analyzed by the laboratory of the National Bureau of Soils (BUNASOLS). The results indicate that climate change influences the texture at three (0 3) fractions, carbon, organic matter and exchangeable bases of soils in irrigated schemes. To ensure food security and strengthen the economy of States, it is crucial to put in place effective strategies and techniques for adapting to the climatic risks of irrigation schemes in Africa.