
Экспериментально показана возможность объективной и надежной диагностики нижней границы старопахотного горизонта в залежных кислых сиаллитных профильно-дифференцированных почвах по гигроскопичности и цветовым характеристикам послойных образцов после удаления из них органического вещества пероксидом водорода. Граница определяется по излому на профильных кривых содержания гигроскопической влаги и значений хроматической составляющей цвета (тона, насыщенности).The possibility to objectively and reliably diagnose the lower boundary of the old-arable horizon in fallow acid siallitic soils with an eluvial-illuvial-differentiated profile has been demonstrated experimentally by determining the hygroscopicity and color characteristics of their layerwise samples following the removal of the soil organic matter by hydrogen peroxide. The boundary is defined by an inflection point on the profile curves of hygroscopic moisture content and chromatic components (hue, saturation).
ЗАЛЕЖНАЯ СВЕТЛО-СЕРАЯ ЛЕСНАЯ ПОЧВА,FALLOW LIGHT-GREY FOREST SOIL,УДАЛЕНИЕ ОРГАНИЧЕСКОГО ВЕЩЕСТВА,ORGANIC MATTER REMOVAL,ГИГРОСКОПИЧЕСКАЯ ВЛАЖНОСТЬ,HYGROSCOPIC MOISTURE,ЦВЕТОВЫЕ ХАРАКТЕРИСТИКИ В КООРДИНАТАХ CIELAB,CIELAB CHROMATICITY COORDINATES,НЕСИЛИКАТНЫЕ СОЕДИНЕНИЯ ЖЕЛЕЗА,NON-SILICATE COMPOUNDS OF FE
ЗАЛЕЖНАЯ СВЕТЛО-СЕРАЯ ЛЕСНАЯ ПОЧВА,FALLOW LIGHT-GREY FOREST SOIL,УДАЛЕНИЕ ОРГАНИЧЕСКОГО ВЕЩЕСТВА,ORGANIC MATTER REMOVAL,ГИГРОСКОПИЧЕСКАЯ ВЛАЖНОСТЬ,HYGROSCOPIC MOISTURE,ЦВЕТОВЫЕ ХАРАКТЕРИСТИКИ В КООРДИНАТАХ CIELAB,CIELAB CHROMATICITY COORDINATES,НЕСИЛИКАТНЫЕ СОЕДИНЕНИЯ ЖЕЛЕЗА,NON-SILICATE COMPOUNDS OF FE
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