Open Access IJG Hydrological Study of Watersheds Arid and Semi-Arid

Copyright © 2013 Fares Belagoune, Djamel Boutoutaou. This is an open access article distributed under the Creative Commons At-tribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is prop-erly cited. In accordance of the Creative Commons Attribution License all Copyrights © 2013 are reserved for SCIRP and the owner of the intellectual property Fares Belagoune, Djamel Boutoutaou. All Copyright © 2013 are guarded by law and by SCIRP as a guardian. The objective of the study is to establish the hydrological characteristics, the hydrological behavior of river basins in arid and semi-arid south-eastern Algeria (establish of methodologies and necessary working tools for planning the de-velopment and management of water resources). The study on floods in Algeria is established by the National Agency of Water Resources (ANRH shows that the country is confronted with the phenomenon of very destructive floods and floods especially in arid and semi-arid regions). Flooding of rivers in these areas is less known. They are characterized by their sudden duration (rain showers, thunderstorm). The duration of the flood is in the order of minutes to hours. The human and material damages caused by these floods are still high. The study area encompasses three watersheds in semi-arid, arid south and Algeria. There are pools of Chott-Melghir (68,751 km2), highland Constantine-07 (9578 km2) and El Hodna-05 basin (25,843 km2). The total area of this zone is about 104,500km2. Studies of protection agains