RAHALI, Oussama2023-03-232023-03-232015https://dspace.univ-ghardaia.edu.dz/xmlui/handle/123456789/5869The study of weather changes of the most important factors that help the good and rational management of water resources. This work is studying a series of loss for rain gutter area in a specific period, and how it impacted on the region of M’Zab. From 1970 to 2014, which is the length of which was extracted precipitation series. The application of a set of statistical operations and revisionism, we extracted the large climate changes that touched the area of dry periods. In addition, a large set of data in this work made us know well on climate change and periods experienced by the region in the period this topic.frvariabilité climatique, séries chronologiques, tendances et ruptures, tests statistiques, de la vallée de M’Zabweather changes, series, statistical operations, climate change, region of M’Zab