Morphological characteristics, humus and nutrient content of recent and buried soils of the Inozemtsevo mound

The main objective of the work was to identify evolutionary changes in profile recent and buried soil Holocene, content humus composition mobile forms nutrients solonetzol- silted black insufficiently wetted zone Stavropol Krai. research carried out near village Inozemtsevo, soils study area are formed on marine sediments. A 1.5-metre-high grave erected more than 5,000 years ago. At a distance 150 metres, an incision made virgin soils. According morphological characteristics, medium saline fused powered soils, while evolved into weakly low They distinguished by lower thickness brown, rather black, colouring. There is BC horizon which absent paleosoils. New formation carbonates gypsum noted only B2 horizons. organic matter 5-6% decreases 6-7 times paleosoils upper Recent depleted phosphorus, but enriched potassium. Differences sulphur due some salinity In trace elements, differences between studied significant, especially zinc, cobalt molybdenum. Consequently, during period 5 thousand years, soil-absorbing complex impoverished these microelements.