Located in the mid-west of Morocco, the Tensift watershed shelters the Takerkoust dam, which provides a part of the water used for irrigation of the N'fis agricultural area, which is an important irrigated area of the Tensift watershed. This study deals with the impact of droughts on water inflows to the Takerkoust dam and how the water shortage caused by droughts affects agricultural production in the N'Fis area. The standardized precipitation index (SPI) was used to illustrate the temporal evolution of drought periods. The trend observed on data showed that the Tensift watershed experienced a succession of droughts and humid periods of varying intensities. Periods of drought have negatively affected water inflows to the Takerkoust dam, and therefore the amount of water allocated to agricultural irrigation. Years that experienced droughts showed a restriction of more than 50% of water volume planned for irrigation. During periods of water scarcity, farmers reduce or completely avoid irrigation of annual crops to save water for irrigation of perennial crops. The water shortage for irrigation has led in some cases to a drop of up to 100% of the surface allocated to the production of annual crops.

Tensift流域位于摩洛哥中西部，是Takerkoust大坝的庇护所，Takerkoust大坝提供了N'fis农业区灌溉用水的一部分，N'fis农业区是Tensift流域的重要灌溉区。这项研究涉及干旱对Takerkoust大坝水流入的影响以及干旱造成的缺水如何影响N'Fis地区的农业生产。标准化降水指数（SPI）用于说明干旱时期的时间演变。根据数据观察到的趋势表明，Tensift流域经历了一系列干旱和不同强度的潮湿时期。干旱时期对流入Takerkoust大坝的水造成了负面影响，因此也影响了分配给农业灌溉的水量。经历干旱的年份显示计划灌溉的水量限制超过50％。在缺水时期，农民减少或完全避免一年生作物的灌溉，以节省灌溉多年生作物的水。灌溉缺水在某些情况下导致分配给一年生作物的地表面积下降了多达100％。