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Colluvisols as a Component of Erosional and Accumulative Soil Cover Structures of East Lithuania

By Bauziene Ieva


About 30 % of Lithuania is undulating and hilly. Under the influence of water and agriculture operations, soil erosion in hilly landscape changes the environment components. New soil parent material (colluvium) emerges. In some parts of hilly Lithuania, colluvium composes more than 20 % of the soil parent material. According to the former Lithuanian soil classification the soils developed on talus colluvium (deluvium) were deliuvial soils. Deliuvial soils as a first level classification unit was distinguished by Dokuchiajev and in the new Russian soil classification (2000). Deliuvial and aluvial soils are in one group of deposited soils in Poland soil classification. There are colluvial soils in the first classification level in Germany and France. In this article we’ll use the term “colluvisol”, because it’s more appropriate for international scientific terminology. In Lithuania, soils formed on colluvium are named fluvic cambisols according FAO soil classification. That is incorrect with regard to the profile construction and from the point of view of the genetic processes. We found no colluvisols with cambic diagnostic horizon in the uplands of East Lithuania. There are cases where fluvic soil material in the profiles of colluvisols is expressed in more than 50 cm of the profile. It is diagnostic property of fluvisols. Colluvisols differ from fluvisols by location. It is not necessary for colluvisols to be located in a river valley. Some properties of colluvisols depend o

Topics: erosion, potential, accumulation, colluvium, fluvisol, regosol
Year: 2014
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