Central Asian landscape-geochemical arena of accumulation and translocation of pedogenic carbonic compounds

The soils of the mountains and plains of Central Asia can be grouped into three formations in relation to the total reserves and the ratio between organic and mineral carbonic compounds in them: (1) carbonate-carbonic, (2) organic-carbonate-carbonic, and (3) highly organic-carbonic. A wealth of pedogenic carbonates from topsoils of arid plain territories is involved in eolian migration due to the activity of deflation processes. Erosion and deflation of soils within subarid foothills and low mountains provide for eolian and water migration of pedo- and lithogenic carbonates as well as of humus-enriched fine earth. Erosion and cryogenic deflation of high mountain soils in humid regions attributes to the runoff of humus- and silica-enriched substances in mountain rivers. Sediments suspended in waters of mountain rivers and irrigation channels are deposited on plain in the form of modern alluvial and irrigation sediments that contain twice as much humus as background Gray-Brown and Takyr-like desert soils.