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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Revue des sciences de l’eau17 2— Download the article in PDF to read it. The parameters describing the watersheds were also recorded in a similar data bank. All small reservoirs at the test sites were equipped with a water level gauge, an evaporation pan, and two stations for automatic data collection.
The spillways were shaped in such a way that discharge could be estimated.
After an analysis and synthesis of these projects in each lax, seven test sites were chosen and a multidisciplinary approach was adopted.
There is little to no exploitation of hill reservoirs that are far from the markets.
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. During winter, high potential evapotranspiration values are collinaie to strong winds. At collinairee same time, studies on sheet erosion and gully erosion were carried out in the watersheds.
Economic, social and environmental studies were made using surveys with the farmers. In all semi-arid Mediterranean regions, ovine breeding is an important income for farmers.
Programme de recherche sur les lacs collinaires – Revue des sciences de l’eau – Érudit
Since the beginning of the project, annual records of all observations made from September to August at these test sites have been published. At the catchment scale, measurements of energy balance showed a very strong water demand throughout the year. One station was connected to colinaire tipping bucket rain gauge 0. Mediterranean, water, small dams, hill reservoirs, rural hydraulic works.
Their construction has several objectives:. Access to water and social organizations were studied as well as the division of responsibilities among state, collectivities and the individual.
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Intensive cultivation collonaire drip-irrigated tomatoes and peppers 10 ha coexists with traditional irrigated gardens. Hill reservoirs contain fifty thousand to one million m3 of runoff water from watersheds whose areas range from a few hectares to several km2. Solid transport varied from 1. The use of water in the hill reservoirs appeared to be limited, but variable from one lake to the other.
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Switch to classic view. A computerized bank of hydrological data was set up. They regulate water flow and thus help to maintain populations in place, ensuring for them real possibilities of development. Among other uses of the reservoir water, cattle watering and domestic needs were also important. The geochemical characterization of the water in hill reservoirs showed three major groups: In ,ac to a training program and co-ordination activities, four projects colljnaire carried out:.
Water samples were collected seasonally during the project. Revue des sciences de l’eau 17, no. Maps of different watersheds were stored using a geographical information system GIS.
A hill reservoir is a colliniare lake resulting from a small dam. They are integrated in a natural way within the landscape and do not create any particular pollution problems.
On the Kamech site in Cap Bon the dam was equipped with 4 fuel water pumps. The observed actual evapotranspiration of hard wheat 2. Micro-meteorological studies on rainfed agriculture allowed the estimation of actual evapotranspiration fluxes for hard wheat at both sites. 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.
The main objective of this work was to build a hydrological model suitable for semiarid Mediterranean catchments with hill reservoirs, with two specific objectives: