Abstract
In this paper we presents the characteristics of selected physical and water properties of four arable soils situated within the range of the predicted depression cone of “Tomislawice” lignite open-cast mine. In the sampled soil material of undisturbed and disturbed structure following properties were determined: texture, particle density, bulk density, total porosity, hygroscopic moistures, maximal hygroscopic capacity, saturated hydraulic conductivity, potentials of water bonding in soil, total and readily available waters, total retention in the soil layers of 0-50 and 0-100 cm, drainage porosity and content of organic matter. Study soils were developed from sands, sandy loams and sapric peat material. All of the analyzed soil properties were determined by clay fraction or organic matter content in particular. In the most of the investigated soils high field water capacity and wide scopes of total and readily available water were recorded. Measured saturated hydraulic conductivity was typical for arable soils with similar origin. Study soils showed a precipitation water regime and probably won’t be exposed to drainage degradation caused by open-cast mine.
Highlights
The assessment of stage and scope of dehydrating degradation is a complex problem
The aim of the paper was to assess the current state of various type of arable soils adjacent to “Tomisławice” lignite open-cast mine, based on the selected physical and water properties determination
In accordance with the FAO-WRB classification (IUSS Working Group 2015), the studied soils were classified as Gleyic Phaeozem, Humic Gleysol, Murshic Sapric Histosol and Ochric Arenosol
Summary
The assessment of stage and scope of dehydrating degradation is a complex problem. The process of degradation may be caused by either intentional or unplanned dehydration. Since damages claims in respect of degradation of arable lands’ productivity often concern farms located significantly far from the open-cast mine, preliminary inventory research must cover vast areas, which generates very high (difficult to accept by an ordering party) cost of expertise (Rząsa et al 1999). In such cases a procedure of preliminary soil cover identification should be applied for each vast territory and, on the basis of this documentation, parts of it should be identified as insusceptible to open-cast dehydration degradation and excluded from further, more detailed research (Mocek et al 2000). The aim of the paper was to assess the current state of various type of arable soils adjacent to “Tomisławice” lignite open-cast mine, based on the selected physical and water properties determination
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