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一、基本情况沙壕渠试验站暗管排水试验,于1976年开始,1978年建成。以后进行了部分管道的改造加密试验和清淤维修工作。试区建在杭锦后旗光荣公社春光大队。控制面积为860田。试区土质以沙壤、沙土为主,地面坡度为1/6000,地下水埋深年变幅为0.8～2.6米之间,土壤渗透系数为0.3～0.6米/日,潜水矿化度为2～5克/升。
First, the basic situation Sand trench test station underground pipe drainage test, started in 1976, completed in 1978. After some of the transformation of the pipeline encryption test and dredging maintenance work. The test area was built in honor of Hangjinhouqi glorious commune spring brigade. Control area of 860 fields. The soil quality of the trial area is dominated by sandy soil and sandy soil, the slope of the ground is 1/6000, the annual amplitude of groundwater depth is 0.8-2.6 m, the soil permeability coefficient is 0.3-0.6 m / day, the degree of dive salinity is 2 ~ 5 g / l.