L’étude preliminaire du lac collinaire de Djorf (Wilaya de Sétif) []. Milinusic, B.M. Kats, M.J. Ministere de l’Agriculture et de la Reforme Agraire, Algiers. Programme de recherche sur les lacs collinaires dans les zones semi-arides du pourtour méditerranéen. An article from journal Revue des sciences de l’eau. , Oct , M. [IMG], lac-collinaire- , Nov , 20K. [IMG], lac-collinaire- COUP_medium.

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Mediterranean, water, small dams, hill reservoirs, rural hydraulic works. Intensive cultivation of drip-irrigated tomatoes and peppers 10 ha coexists with traditional irrigated gardens. A hill reservoir is a small lake resulting from a lax dam.

L’étude preliminaire du lac collinaire de Djorf (Wilaya de Sétif) [1971]

At the catchment scale, measurements of energy balance showed a very strong water demand throughout the year. The main objective of this work was to build a hydrological model suitable for semiarid Mediterranean catchments with hill reservoirs, with two specific objectives: At the same time, studies on sheet erosion and gully erosion were carried out in the watersheds.

After an analysis and synthesis of these projects in each country, seven test sites were chosen and a multidisciplinary approach was adopted.

The observed actual evapotranspiration of hard wheat 2. Maps of different watersheds were stored using a geographical information system GIS. Solid transport varied from 1. Revue des sciences de l’eau17 2— They regulate water flow and thus help to maintain populations in place, ensuring for them real possibilities of development. There is little to no exploitation of hill reservoirs that are far from the markets. Hill reservoirs contain fifty thousand to one million m3 of runoff water from watersheds whose areas range from a few hectares to several km2.

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The observations made during different hydrological periods aided in the understanding of the present geochemical evolution of water and confirmed the importance of reservoir hydrology in this evolution. They are integrated in a natural way within the landscape and do not create any particular pollution problems. Economic, social and environmental studies were made using surveys with the farmers.

Since the beginning of the project, annual records of all observations made from Collinxire to August at these test sites have been published. During winter, high potential evapotranspiration values are due to strong winds.

Among other uses of the reservoir water, cattle watering and domestic needs were also important. In addition to a training program and co-ordination activities, four projects were carried out:.

The use of water in the hill reservoirs appeared to be limited, but variable from one lake to the other.

All small reservoirs at the test sites were equipped with a water level gauge, an evaporation pan, and two stations for automatic data collection. Their construction has several objectives:.


In all semi-arid Mediterranean regions, ovine breeding is an important income for farmers. Water samples were collected seasonally during colinaire project.

An agronomic survey was carried out in Tunisia on water requirements for the main cropping systems and for different irrigation systems traditional, sprinkler or drip irrigation on two semi-arid sites. Switch to classic view. Micro-meteorological studies on rainfed agriculture allowed the estimation of actual evapotranspiration fluxes for hard wheat at collinaore sites. One station was connected to a tipping bucket rain gauge 0.

The spillways were shaped in such a way that discharge could be estimated.

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Revue des sciences de l’eau 17, no. On the Kamech site in Cap Bon the dam was equipped with 4 fuel water pumps. A computerized bank of hydrological data was set up.

The geochemical characterization of the water in hill reservoirs showed three major groups: The parameters collinaore the watersheds were also recorded in a similar data bank. Access to water and social organizations were studied as well as the division of pac among state, collectivities and the individual.