RUNOFF EVOLUTION IN MACTA BASIN (NORTH WEST OF ALGÉRIA)

Mohamed MEDDI, Amel Talia

Résumé


Abstract:
In Algeria, the climate change in recent decades has a negative impact on water resources.
The goal of this study is to determine the influence of these hazards on surface water
resources in the basin of Macta (Northwest of Algeria). The study of climatic pulsations is
implemented from the climate coefficient changes and its moving averages over 3 years.
Variations of this coefficient based on years, for the period 1949?1973, show an alternation of
wet and dry years. Starting from 1973, a very dry period of more than 20 years was installed
in the basin, with deficits ranging from 22% to 72%. The consequences of the surface water
deficit can damage the environmental balance and consequently affect the various human
activities that are directly or indirectly related to the use of these resources.

Mots-clés


Hydro; pluviometric regime; Water resources; Basin of Macta; Algeria.

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