Abstract
On the basis of the topographic maps from 1933, 1951 and 1962 (sc 1:10 000, 1:25 000 and 1:100 000, respectively) and the satellite image from 2014 (sc 1:10 000), we determined changes in the channel of the small Brynica river (Southern Poland) as well as in the land-use pattern along this river valley after its melioration. Terrain regulation and drainage brought about an intensification of the overland runoff, and a decrease in irrigation of the territory. Due to soil overdrying, some tracts of the valley are experiencing a moisture deficiency. Peat drying can lead to negative consequences, because shallow peats mostly occur on the study territory. Disappearance of peaty soils acts to decrease the degree of suitability of the riverside territories for economic purposes as well as their capacity for recovery. The schematic map of vegetation distribution along the river valley prior to and after melioration as compiled from results of field observations displays differences between mosaic quasi-natural vegetation and areas of typical agrocenoses. The preservation of the natural values along the Brynica valley is possible through balanced economic management, while the differentiation of topography contributes to creating favorable conditions for the formation of biodiversity.
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Original Russian Text © O. Rahmonov, V.A. Snytko, T. Szczypek, 2016, published in Geografiya i Prirodnye Resursy, 2016, Vol. 37, No. 4, pp. 191-197.
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Rahmonov, O., Snytko, V.A. & Szczypek, T. Influence of melioration in natural ecological processes of a small river valley (Poland). Geogr. Nat. Resour. 37, 379–384 (2016). https://doi.org/10.1134/S1875372816040132
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DOI: https://doi.org/10.1134/S1875372816040132