Soil column is used to study the characteristics of calcium movement in uprightness direction in Brown-soil which is in a middling rainfall condition.

• 采用室内土柱淋溶模拟试验方法,以棕壤为供试土壤,研究了在一次中等程度的降雨条件下钙肥在土壤垂直方向上的淋溶迁移特征。