Study of hydrological conditions of slope soils by means of sedimentary petrology tools - working hypothesis
2005
Belej, J.(Technicka univerzita Zvolen (Slovak Republic). Lesnicka fakulta | Pichler, V. | Gregor, J.
This article deals with the role of soil skeleton regarding the physical-chemical parameters of soils, with emphasis on porosity and permeability characteristics of pore network of forest soils in slope deposits rich in soil skeleton. It is stated the tools of sedimentary petrology (e.g. the tools of optical porosimetry) can be used for evaluation of the quality, homogeneity and coordination number of pore spaces existing in soil skeleton -- via analyze of pore area to pore throat ratio and pore throat-to pore coordination ratio of soil skeleton. The figures presented in this article confirm the existence of high effective porosity in the sedimentary rocks of the Western Carpathians representing the source material of soil skeleton. Optical porosity analyse of sedimentary rocks reveals high diversity of classes and categories of optical porosity existing in these rocks which can probably in very efficient way to communicate with similar ones pore network existing in the fine earth fraction of soils. In conclusion, our findings suggest the soil skeleton and its pore network regarding the fine earth is not inert, but play important role in soils as (i) both transportation routes and reservoirs of soil water, (ii) chemical reactors on the interface soil water -- soil -- skeleton, (iii) the sources of cation Exchange capacity, (iv) sink of protons.
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