Quantification, modélisation et gestion de la ressource en eau dans le bassin versant du Haut Sebou (Maroc)

Abstract : Water is one of the major issues of our time in all continents. Like many countries on the southern shore of the Mediterranean Sea, Morocco is particularly affected by water shortages. It seems that to overcome this lack of water, the country uses large hydro (128 dams in Morocco) to power, from the regions that receive the largest amounts of rain, or regions richest in groundwater, major cities and agricultural areas irrigated large area. However, this large and predominant hydraulic policy faces such several limitations (limited life of reservoirs, number of sites suitable, and investment) that promising levers remain efficient ways of managing water resources. However, to effectively manage this, it is essential to know the amount of water available in each basin and its different uses. This thesis is a contribution to the knowledge of water resources in a key area. The Middle Atlas can be considered the "water tower" of Morocco. A geographical approach is in place, both in terms of the resource assessment and use of one of three major hydrological units that drains the Middle Atlas: the watershed of the Sebou up stream of the hydrometric station Azzaba. set in 4 parts, this work- being of the Franco-Moroccan academic cooperation- demonstrates the heterogeneity of hydrological processes in relation to a complex mountainous geographical context. Both the analysis of hydrological phases and the contribution of modeling show a significant contribution of groundwater to stream flow, the importance of redistribution within the basin of the Upper Sebu and from adjacent basins. In this regard, research in the form of survey aimed at apopulation farmers shows agricultural changes forming in the Middle Atlas sector, and highlights the changes in water sampling modes in river systems, the traditional sampling system over water being increasingly challenged by levies same groundwater pumping.
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Abdelghani Qadem. Quantification, modélisation et gestion de la ressource en eau dans le bassin versant du Haut Sebou (Maroc). Géographie. Université de Lorraine, 2015. Français. ⟨NNT : 2015LORR0263⟩. ⟨tel-01754630⟩

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