Factors Influencing Hydraulic Conductivity of Soils in the Presence of Mixed‐Salt Solutions

Abstract For a group of soils having variable clay content but nearly uniform clay‐fraction mineralogy, relative hydraulic conductivity in the presence of mixed‐salt solutions decreased markedly with increasing clay content, particularly at the lowest salt concentrations employed. The stability of a group of Hawaiian soils under high‐sodium, low‐salt conditions was greatly reduced by partial removal of the free iron‐oxides. Replacing the Ca in percolating NaCl‐CaCl 2 solutions with Mg measurably decreased soil hydraulic conductivity, although the effect was often negligible when comparisons were made at equivalent exchangeable‐sodium‐percentages.

Перевод пока недоступен