CAUSES AND EFFECTS OF MELIORATIONS IN THE NORTH BLACK SEA REGION: DRAINAGE SYSTEMS

Abstract

The drainage of irrigated areas has led the improved condition of lands the Northern Black Sea. The stabilization of groundwater levels, their desalination, the reduction of areas of saline lands occurred. In this article the actual data on the number of vertical drainage wells, the squares of drained lands in the region, the quantity of drainage water and their mineralization are given. The analysis of the negative effects of constant use of drainage wells was made. The factual amount of drainage water discharge into the bays of the Black Sea shown. The need for integrated management of irrigation and drainage regimes proved. The author describes the current state of drainage systems and accentuates the need for technologies that spare the resources.