| 摘要 |
land reclamation. SUBSTANCE: drainage system has collector, blind drains, inspection well, mouth structure, temporary open network consisting of furrows combined with open temporary drain connected with intake well. System has mole drains arranged in plan and in vertical plane along furrow line. Slots of mole drain are made both at upper and lower sides. Mole drains are mated with sand filling through lower slot. EFFECT: improved water-air control in root-habitant layer of heavy textured mineral soils by accelerated removal of surface and ground water. 2 dwg
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