| 摘要 |
FIELD: reclamation.SUBSTANCE: system of estuary irrigation is arranged in a closed reduction of terrain relief, includes a series of earth conservation shafts (dams) with water-transmitting control structures, dividing total area of system to separate tiers, and water supply source. System is equipped by section reset-sprayer, laid at thalweg bottom reduction without dumping shafts with a small inclination from shaft of upper tier and coming through gate-regulator outside system. Along perimeter of reduction there is a single-flange output groove, and at end of upper stage before separating shaft - manifold groove. Perpendicular to horizontal lines of reducing inside tiers there is a cut slot or mole drainage to output of well heads of slits or mole in reset-sprinkler, discharge and collector of groove. For more effective control of salinization and solonization system is equipped with device for dissolution and introduction of chemical ameliorants into irrigation water.EFFECT: higher quality of irrigation.1 cl, 2 dwg |
