暗管排水可以很好的控制排除农田地下水和土壤含水量，提高土地利用率。
Pipe drainage system has big control of excluding agricultural groundwater and soil moisture and raise the utilization of land area.
暗管排水在20世纪中期初步形成，近30 ~40年在美国、日本、埃及等国家得到广泛应用。
The subsurface pipe drainage came into being just in the metaphase of20th century. It was broadly applied in USA, Japan and Egypt for30 ~ 40years.
以明沟排水为对照，论述了内陆干旱重盐碱区暗管排水在排水排盐、控制地下水位、提高土壤脱盐效果及提高作物产量等方面的优越性。
Subsurface pipe drainage in drought-prone region is superior to surface drainage in draining off water and salt, controlling ground water-level, and increasing crop output, etc.
以明沟排水为对照，论述了内陆干旱重盐碱区暗管排水在排水排盐、控制地下水位、提高土壤脱盐效果及提高作物产量等方面的优越性。
Subsurface pipe drainage in drought-prone region is superior to surface drainage in draining off water and salt, controlling ground water-level, and increasing crop output, etc.
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