Guelph入渗仪在测定盐田土壤渗透性上的应用

Application of Guelph Permeameter in Determining the Soil Permeability of Salt Pan

文章首次将Guelph入渗仪用于盐田土壤渗透量的测定。获得了南堡盐场一支队、二支队、五支队部分结晶单元调节和蒸发区盐田土壤渗透系数,测定盐田卤水浓度范围为15.0°Be′~22.6°Be,′渗透系数值基本在0.48mm/d^0.29mm/d之间。实验结果表明:南堡盐场盐田土壤为发育成熟的盐田土壤。Guelph入渗仪最佳的适用条件是不饱和土壤渗透系数的测定,而盐田蒸发结晶池土壤大部分为饱和土壤,因此在应用该设备来测定盐田土壤渗透性时需慎重选择测试点。

In this paper,Guelph permeameter is used for the first time to determine the soil permeability of salt pan. Taking Nnapu saltworks as an example, the partial crystallization modules regulation and evaporation zone of No. 1 team, No. 2 team, No. 5 team salt pans were selected to determine the soil permeability. The concentration of the brine in the saltworks is 15.0°Be′ ~ 22.6° Be′ ,and the value of coefficient is between 0.48mm/d and 0.29mm/d. The results of experiment indicate that the soil of salt pan in Nanpu saltworks is mature. The best applicable conditions of Guelph permeameter is to measure the permeation coefficient of the non -saturated soil,but most of the evaporation and crystallization soil in salt pan are saturated, so the test point should be carefully chosen in the application of the equipment in determining the soil permeability of salt pan.