Methods for the assessment of humic substances quality in forest soils

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F06%3A16355" target="_blank" >RIV/60460709:41210/06:16355 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Methods for the assessment of humic substances quality in forest soils

Original language description

This paper is focused on soil organic mater quality assessment in acid forest soils. Soil samples were collected in the Jizera Mountains region. Vegetation cover ofsampling sites was formed by spruce or beech monocultures. Humus quality was assessed by theratio of absorabances of pyrophosphate soil extract at the wavelengths of 400 and 600 nm (A400/A600). Humus fractionnation was performed on selected soil samples. DRIFT spectra of individual fractions were measured. Higher pH and lower C and N contentes were found in beech forest than in spruce forest. A400/A600 well correlates with C and N contents (r= 0.510*** and 0.615***, respectively), C and N content increases as to humus quality decreases. DRIFT spectra of fulvic acids turned out to be unsiutable for describing differences in humus quality. DRIFT spectra of humic acids and humin were hence more suitable. The difference between spruce and beech forest was found in 1514.cm.-1(C=C bounds of benzene rings) and 1550 cm-1(N-H bounds

Czech name

Metody stanovení kvality humusových látek v lesních půdách

Czech description

This paper is focused on soil organic matter quality assessment in acid forest soils. Soil samples were collected in the Jizera Mountains region. Vegetation cover ofsampling sites was formed by spruce or beech monocultures. Humus quality was assessed bytheratio of absorabances of pyrophosphate soil extract at the wavelengths of 400 and 600 nm (A400/A600). Humus fractionnation was performed on selected soil samples. DRIFT spectra of individual fractions were measured. Higher pH and lower C and N contentes were found in beech forest than in spruce forest. A400/A600 well correlates with C and N contents (r= 0.510*** and 0.615***, respectively), C and N content increases as to humus quality decreases. DRIFT spectra of fulvic acids turned out to be unsiutable for describing differences in humus quality. DRIFT spectra of humic acids and humin were hence more suitable. The difference between spruce and beech forest was found in 1514.cm.-1(C=C bounds of benzene rings) and 1550 cm-1(N-H bounds

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DF - Pedology

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Soil and Water Research

ISSN

1801-5395

e-ISSN

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Volume of the periodical

1

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

7

Pages from-to

3-9

UT code for WoS article

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EID of the result in the Scopus database

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