For a long time, man had to explore groundwater\nby constructing special hydraulic works. Thus, in\nancient times, hydraulic civilizations such as the foggaras\nin Iran, Egypt, China and Latin America were born. In the\nAlgerian Sahara, the foggara has played a leading role in\nthe field of abstraction of groundwater distribution and\nsharing through formal and strict rules. Today, this technique\nhas been disappearing and drying up. This decline\ndoes not only increase year by year, there were over a\nthousand foggaras in the early 1960s, but today only 915\nfoggaras have been listed for all those regions. Among the\nfactors favoring the decline of foggara is the exploitation\nof water by deep holes drilled near the latter. In this article,\nwe try to show the impact of drilling on the foggara.
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