Abstract
We performed tha following examination, on the physicochemical characteristics of clay in the sloping salt-field.
1) PF of clay water. 2) size distribution of particles. 3) organic matter. 4) settling volume. 5) base exchange capacity. 6) ratio on swelling and shrinkage. Consequently, the followiog results were obtained. 1) physical characteristics of clay were influencad by the humus contents and colloidal clay (2μ) 2) in the sloping sald-field the maximam hwmuscontents should be less than 2% organic carbon.
