The objective of this work is to determine the effects of climate change on the water needs of crops in the Bounamoussa perimeter, which is one of the large irrigation systems in the North-East of Algeria in order to predict a diagnosis of its operation. This region covers an area of 16,500 ha and is specialized in vegetable production.The climatic trend of recent years in the study area is characterized by increasingly severe drought conditions that have compromised agricultural production at this perimeter. In this study, the results of the climatic parameters projected to 2050 and 2080 under the Climate Wizard program were used in the CropWat 8.0 program for estimating the future water requirements of crops, taking into account the three Scenarios (B1, A1B, A2) of greenhouse gases (GHGs). The Decision Support System for Agrotechnology Transfer (DSSAT) 4.5 program has also been used to generate future climatic parameters (temperatures and rains) to be compared with those of the climate wizard. The results obtained in 2050 and 2080 show a trend towards increasing temperatures and a fall in rainfall for all models and that the water requirements will be multiplied by 3 to 5 times the current needs. This situation will cause an imbalance in the operation of perimeter irrigation systems. Among the measures of adaptation to this situation in the first place is the change of the date of planting after calibration of the two models for all the cultures of the perimeter.

The Continental intercalary groundwater is highly sought for its water as resources hugely mobilized in Northern Sahara. A very high flow rate and output pressure characterizes this groundwater. It amounts from 50 to 400 l.s -1 for the flow, and from 5 to 40 bar for pressure. A survey of the Northern Sahara Aquifer System was essential to prove the existence of this potential. This energy appears into the artesian form, which remains very considerable for a very long time in most borehole. We have realized that this energy is immense, as well as the expanded volume of the groundwater, and the importance of its use in agriculture. Unfortunately, this potential remains untapped to this day and the energy of this water is completely neglected. Several turbo generator and/or inverted pump (PATs) integration tests were undergone. The new concept of reflection with respect to the environment and sustainable development has led us to structure our work towards the extension of this potential in order to extract the exploitable energy.Keywords: Albian, Continental Intercalary, borehole, Northern Sahara, Turbo generator. RESUMENEl agua subterránea intercalar continental es muy buscada para sus aguas como recursos movilizados en el Sahara del Norte. Un caudal muy alto y una presión de salida caracterizan esta agua subterránea, la cual, es de 50 a 400 l.s -1 para el flujo, y de 5 a 40 bar para la presión. Una encuesta del Sistema Acuífero del Sahara Septentrional fue esencial para probar la existencia de este potencial. Esta energía aparece en la forma artesiana, la cual permanece considerablemente durante mucho tiempo en la mayoría del pozo.. Nos hemos dado cuenta de que esta energía es inmensa, así como el volumen expandido de las aguas subterráneas, y la importancia de su uso en la agricultura. Desafortunadamente, este potencial permanece sin explotar hasta el día de hoy y la energía de esta agua es completamente desperdiciada. Se realizaron varios ensayos de integración de turbo-generador y / o de bomba invertida (PATs). El nuevo concepto de reflexión con respecto al medio ambiente y el desarrollo sostenible nos ha llevado a estructurar nuestro trabajo para extraer la energía explotable.

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