Popis: |
The upper part of Gallikos river watershed basin covers an area of 868.1 km2. The largest part of the basin administratively belongs to the Prefecture of Kilkis. A small part, along the southern border, belongs to the Prefecture of Thessaloniki. The present paper examines the hydrogeological and hydrological conditions of the area. It also describes the geological, lithostratigraphical and tectonic conditions which comprise a determining factor for the quantitative characteristics of surface and groundwater. The recharge and operation mechanism of the aquifers is investigated, as well as their interaction and the role of the surface water. River discharge, water table level, precipitation and water consumption data are presented and the hydrologic balance of the area is calculated. |