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Variability of Soil Properties in Eroded Agricultural Landscape
 
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Department of Agri-Food Engineering and Environmental Management, Faculty of Civil Engineering and Environmental Sciences, Białystok University of Technology, ul. Wiejska 45A, 15-351 Białystok, Poland
 
 
Publication date: 2020-01-01
 
 
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Agnieszka Wysocka-Czubaszek   

Department of Agri-Food Engineering and Environmental Management, Faculty of Civil Engineering and Environmental Sciences, Białystok University of Technology, ul. Wiejska 45A, 15-351 Białystok, Poland
 
 
J. Ecol. Eng. 2020; 21(1):72-80
 
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ABSTRACT
Erosion strongly influences soil properties and affects the intra-field variation of nutrients not only in steep young morainic landscapes but also on gentle slopes of old-glacial landscapes. The aim of the study was the evaluation of changes in plant-available nutrient contents in the complex old-glacial eroded landscape of the Bielska Plain in the north-eastern part of Poland. The soil samples were collected from soil profiles located along the transect beginning on the flat summit of the kame hummock extending through south-facing convex slope, the toeslope and footslope and further through the north-facing uniform slope. The content of plant-available forms of phosphorus (Pdl) and potassium (Kdl) and mineral forms of nitrogen (NH4-N and NO3-N) were determined in every soil profile. Soils located in various landscape positions were characterized with different fertility. In soil located on the toeslope the content of NO3-N, Pdl and Kdl was high, while soil located on the summit was rich in NH4-N and poor in plant-available forms of K and P. The erosional distribution of plant-available N, P and K enhances the variation of nutrient content within one field and contributes to high variability of crops.
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