Keywords: ameliorative system, field contour, channel, collector, pipeline, drainage, silting, runoff module, corrugated pipes, channel slopes

// Мелиорация.— 2019. – №2(88) – P 13—17

The article discusses current and future issues of large diameter polymer pipes using on land-reclamation systems instead of part of open channels, which allows to reduce the contour of the fields, to leave large areas allocated for channels in agricultural circulation. At the same time, normal conditions are created for the operation of widerange agricultural machinery and reduced operating costs for maintaining an open network. Provides information on the usage of large diameter pipes and an assessment of
their economic efficiency when replacing channels with polyethylene corrugated pipes with a diameter of 200 to 400 mm. The nomenclature of polyethylene corrugated pipes with a diameter of 160 to 500 mm, which can be used on land improvement facilities, with their cost, is given