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LAC COLLINAIRE PDF

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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Switch to classic view. A hill reservoir is a small lake resulting from a small dam. Hill reservoirs contain fifty thousand to one million m3 of collinqire water from watersheds whose areas range from a few hectares to several km2.

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They are integrated in a natural way within the landscape and do not create any particular pollution problems. They regulate water flow and thus help to maintain populations in place, ensuring for them real possibilities of development. Their construction has several objectives:.

In addition to a training program and co-ordination collianire, four projects were carried out:.

After an analysis and synthesis of these projects in each country, seven test sites were chosen and a multidisciplinary approach was adopted. All small reservoirs at the test sites were equipped with a water level gauge, an evaporation pan, and two stations for automatic data collection.

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One station was connected to a tipping bucket rain gauge 0. The spillways were shaped in such a way that discharge could be estimated. Since the beginning of the project, annual records of all observations made from September to August at these test sites laf been published. A computerized bank of hydrological data was set up.

The parameters describing the watersheds were also recorded in a similar data bank. Maps of different watersheds were stored using a geographical information system GIS. 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.

Solid transport varied from 1. Water samples were collected seasonally during the project. The geochemical characterization of the water in hill reservoirs showed three major groups: 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.

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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. At the catchment scale, measurements of energy balance showed a very strong water demand throughout the year.

During winter, high potential evapotranspiration values are due to strong winds. Micro-meteorological studies on rainfed agriculture allowed the estimation of actual evapotranspiration fluxes for hard wheat at both sites. The observed actual evapotranspiration of hard wheat 2.

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Economic, social and environmental studies were made using surveys with the farmers. Access to water and social organizations were studied as well as the division of responsibilities among state, collectivities and the individual.

The use of water in the hill reservoirs appeared to be limited, but variable from one lake to the other. On the Kamech site in Cap Bon the dam was equipped with 4 fuel water pumps. Intensive cultivation of drip-irrigated tomatoes and peppers 10 ha coexists with traditional irrigated gardens.

lac collinaire – translation – French-Arabic Dictionary

There is little to no exploitation of hill reservoirs that are far from the markets. Among other uses of the reservoir water, cattle watering and domestic needs were also important. In all semi-arid Mediterranean regions, ovine breeding is an important income for farmers.

Download the article in PDF to read it. Lxc, water, small dams, hill reservoirs, rural hydraulic works.

Revue des sciences de l’eau17 2— Revue des sciences de l’eau 17, no.