Trial for reconstructing ecological environments in Central Eurasia during a recent millennium

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Extensive surveys on distribution patterns of soils and vegetation were carried out in the foothills and mountain slopes of the Tienshan and Altai Mountains in order to give basic information on relationships between them and climatic conditions. In each of the study regions, as elevation increased, soil-forming environments commonly shifted from dry to moist or more leaching conditions. In both the Tienshan and Altai Mountains, a west-to-east transition toward drier moisture conditions was clearly observed. Based on these results, combining with past climatic data, the regional mapping of soils and vegetation in different historical periods were realized.