<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Pedological studies were carried out in the upper course of the Liviec River involving laboratory analyses of three profiles of hemic muck organic soil. The objective was to evaluate the basic properties (pH, crude ash content and carbon and nitrogen content) and to determine the speciation of carbon and nitrogen based on the sequential extraction with a neutral reagent (0.25M KCl) and two-stage acid hydrolysis at different concentrations of hydrogen ions (0.25M H2SO4 and 2.5M H2SO4).</p><p>
The muck horizons, in relation to the peat horizons, had a higher content of ash and a lower concentration of carbon and lower carbontonitrogen ratios. The reduction of acidity in the examined soil had a significant impact on a higher proportion of mineral nitrogen forms. The moorshing process caused by desiccation of the examined soil contributed to an increase in the proportion of soluble organic matter forms (extracted with 0.25M KCl) and easily hydrolysing organic forms (extracted with hydrolysis in 0.25M H2SO4).</p></abstract>

Pedological studies were carried out in the upper course of the Liviec River involving laboratory analyses of three profiles of hemic muck organic soil. The objective was to evaluate the basic properties (pH, crude ash content and carbon and nitrogen content) and to determine the speciation of carbon and nitrogen based on the sequential extraction with a neutral reagent (0.25M KCl) and two-stage acid hydrolysis at different concentrations of hydrogen ions (0.25M H2SO4 and 2.5M H2SO4).
The muck horizons, in relation to the peat horizons, had a higher content of ash and a lower concentration of carbon and lower carbontonitrogen ratios. The reduction of acidity in the examined soil had a significant impact on a higher proportion of mineral nitrogen forms. The moorshing process caused by desiccation of the examined soil contributed to an increase in the proportion of soluble organic matter forms (extracted with 0.25M KCl) and easily hydrolysing organic forms (extracted with hydrolysis in 0.25M H2SO4).

Carbon and nitrogen fractions in drained organic soils / Frakcje węgla i azotu w odwodnionych glebach organicznych

Department of Soil Science and Agricultural Chemistry, Siedlce University of Natural Sciences and Humanities, Prusa 14 St., 08-110 Siedlce

Environmental Protection and Natural Resources

Pedological studies were carried out in the upper course of the Liviec River involving laboratory analyses of three profiles of hemic muck organic soil. The...

Carbon and nitrogen fractions in drained organic soils / Frakcje węgla i azotu w odwodnionych glebach organicznych

Pubblicato online: 27 dic 2013

Pagine: 1 - 5

DOI: https://doi.org/10.2478/oszn-2013-0034

This content is open access.