تأثير هيدروديناميكية المياه الجوفية في تغير مناسيبها و نوعيتها ضمن الطبقة المائية الساحلية في منطقة دمسرخو سورية

الملخص EN

A typical seawater intrusion into fresh groundwater phenomenon, replacement of groundwater by seawater in costal aquifers, has been observed in Damsarkho plain -Syria on the East coast of Mediterranean Sea since the 1970s, but for nearly the last 20 years (after 1997) the plain is irrigated by surface water transformed from a nearby dam, which led to a rise of groundwater levels and the hydrodynamic balance between groundwater and sea water has been returned with notable improvement in groundwater quality.

In this research a water balance of Damsarkho plain before and after the installation of surface irrigation network was computed, and the groundwater shortage in 1975 and the excess of groundwater from 2006 were clarified.

The evolution of groundwater levels during this period was studied and the return of hydrodynamic balance was explained.

The significant improvement in groundwater quality during two periods was examined and its relation to seasonal changes in groundwater recharge was highlighted.

The research results showed that the surface irrigation has led to increased groundwater recharge and reduced volumes of pumped groundwater, which in turn increased groundwater levels, reduced seawater intrusion and improved groundwater quality.