◦Dr. Keïta Amadou obtained his engineering degree in Civil/Hydraulic Engineering at the National School of Engineering (ENI-Bamako). He holds a Master's degree in Physical Sciences (UJKZ Ouaga), a Master of Science and a PhD in Water and Land Development (IEH Delft and Wageningen University, the Netherlands). Mr. Keïta spent 7 years at the International Institute of Water Management (IWMI) studying the evaluation and diagnosis of the performance of irrigated systems in Burkina Faso and Niger. He then joined FAO in 1997, where he spent some 10 years as International Technical Advisor to FAO's GCP/RAF/340/JPN sub-regional project, whose activities focused on the development and testing of sustainable, low-cost, water-efficient irrigation systems. He and his colleagues have innovated many practical irrigation systems. Three countries were targeted by the activities of this project: Burkina Faso, Mali and Niger. For more than 10 years, Dr. Keïta has been a lecturer and researcher at the International Institute of Water and Environmental Engineering (2iE). His current research addresses efficient use of water and energy, sustainable methods and technologies for water, land and forest development. Mr. Keïta is the author of more than a dozen scientific publications and more than a hundred monographic videos on the trees of the intertropical forest placed on YouTube: @amakeita : @ausecoursmonarbre