THEORETICAL ASPECTS OF WORK AND REQUIREMENTS FOR DRAINAGE PARAMETERS UNDER RECONSTRUCTION IN DIFFERENT NATURAL CONDITIONS

Abstract

Drains in well permeable soils (Polesie) and impermeable connected mineral soils (Poozerye) have fundamentally different capabilities of drainage, different functional purpose and therefore, different ways of calculating the parameters. In the reconstruction of drainage systems on heavy soils better by the criterion of economic efficiency will be adaptive options, including adaptation of the agricultural usage to complex water regime. The use of draindryers, diverting gravity water by filtering on soil profile, does not make sense on these lands. In reconstruction it is appropriate to maintain at maximum level the drainage in a serviceable condition. Taking into account the actual conditions of the drainage in Polesie, we can conclude that the deepening of the drains more than 1.0-1.2 m is impractical.