The reflective capacity of hortic antrosols | Отражательная способность агроземов культурных
2012
Bubnova, T.V., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute for Soil Science and Agrochemistry | Drobysh, S.V., Design Institute Belgiprozem, Minsk (Belarus) | Gorbacheva, E.V., Belarus State Academy of Agriculture, Gorki (Belarus)
Soil color is one of the most comprehensible morphological characteristic of the soil, according to which genetic horizons in soil profile are detached. All changes of soil color reflect internal developments of soil material. Soil mapping in field conditions is always made visually; ocular definition of soil color is made by comparison of real color characteristics and standard color control gage. International Munsell book of Color is used to be the control gage. But Munsell book of Color allows determining only three indexes: hue, degree of saturation and augmentation ratio, which appear insufficient for full evaluation of soil colors. The most objective and comprehensive evaluation of soil horizons may be carried out with the help of curves of spectral reflecting capacity in visual spectral band, i.e. in 400 750 nm diapason. The results of the research of spectrum reflecting capacity of the Hortic Antrosols of sandy textural composition are presented. Average statistical definitions of spectral-photometric coefficients of Hortic Antrosols are shown. Data of spectral reflecting capacity of soils confirm the following hypothesis: cultivated sod-podzolic soils, natural for Belarusian conditions, lose their classification qualities and transform into a new soil type, classified as independent kind - Hortic Antrosols.
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