EVOLUTION OF THE SOUTH-EASTERN MESHCHYORA DURING THE HOLOCENE

The paper presents new results of paleo-landscapes studies in the south-eastern part of the Meschera Lowlands. The reconstruction of changes in the landscape structure of the South-Eastern Meschera in the Middle and Late Holocene was realized on the basis of pollen and plant macrofossil analysis and radiocarbon dating of peat deposits of a key site, located in the Klepikovsky district of theRyazanregion. The obtained palaeogeographical data and results of detailed mapping of the present-day landscapes, as well as the relationships between specific feature of relief, sediments, soils and vegetation cover allow compiling schematic paleo-landscape maps for the most important time periods of the Holocene, representing local geosystems. The obtained data show, that the dominant moraine fluvio-glacial undulating plains with relatively narrow sand layer over till deposits were the most sensitive to climatic changes. The complete sequences of vegetation changes during the Holocene are typical to these geosystems, i.e. birch-pine forests (the Early Holocene), broadleaf and mixed broadleaf-pine forests (the Middle Holocene) and spruce-pine forests (the Late Holocene). At the same time, the local geosystems with thick fluvio-glacial sand deposits escaped the significant changes despite temperature and precipitation variations during the last 8000 years.

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