Metody stanovení kvality humusových látek v lesních půdách

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Methods for the assessment of humic substances quality in forest soils

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Methods for the assessment of humic substances quality in forest soils

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DF - Pedologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název periodika

Soil and Water Research

ISSN

1801-5395

e-ISSN

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Svazek periodika

1

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

3-9

Kód UT WoS článku

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EID výsledku v databázi Scopus

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