Investigat{ons into the said problem were carried out on experimental flooding plots in various regions of Central and Eastern Ciscaucasia. Plot No. I was situated in the Primanychskie steppes in the region of Divnoe Village, plot No. 2 in the Ter'ek-Kum interfluve near Steppnoe village, and plot No. 3 on the third terrace of the Terek River (Nadterechnaya Fiat), southeast of h[ozdok. Those soils of different regions of Ciscaucasis substantially differ from each other. The soils of the Primanychskie steppes are represented by foams }m~ing an aggTegate granular te:~ure, the clay minerals of which mainly consist of hydromica with an admixture of montmoril]onite. These soils are characterized by a high content of gypsum in the composition of the water-soluble salts and a relatively high value of absorption capacity {I0-15 mg• equiv), and approxin~.ately an equal content of Ca and Na in the eomposihon of adsorbed cations.