On the Tamariceta ramosissimae Formation in the Ecotone Systems of the Northwestern Caspian Lowland

Communities of the Tamariceta ramosissimae formation are found everywhere in the ecotone systems of reservoirs of the Caspian lowland of Kalmykia. The formation consists of 5 classes of associations and 23 associations. Tamarix ramosissima cenoses occur in fluctuation, dynamic and distant ecotone blocks and are confined to solonchaks, solonchaks solonets. The most characteristic are the Tamaricaceta ramosissima graminosa and Tamariceta ramosissima suffruticulosa communities. Zonal features are characterized by the distribution of communities from north to south and southeast. They differ in phytocenotic and species composition.