Parameters of labile organic carbon as the indicatorsof the stability of soil organic matter under different land use

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43310%2F25%3A43926517" target="_blank" >RIV/62156489:43310/25:43926517 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.17221/119/2024-SWR" target="_blank" >https://doi.org/10.17221/119/2024-SWR</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/119/2024-SWR" target="_blank" >10.17221/119/2024-SWR</a>

Result language

angličtina

Original language name

Parameters of labile organic carbon as the indicatorsof the stability of soil organic matter under different land use

Original language description

The labile fractions of organic carbon (OC), which are a reflection of the properties of soil and its use, appear to be suitable parameters for their use as indicators. The aim of this study was to determine the reliable and relatively simple indicators for detecting the chemical and physical stabilizations of OC, which would respond sensitively to land use. The study includes forest ecosystem (FE) and agroecosystem (AE) with different tillage intensities (reduced tillage, RT and conventional tillage, CT) on real farms. Parameters of the labile C and N were tested. For a depth of &lt; 0.1 m in the FE, the hot water extractable organic carbon (HWEOC) for chemical stabilization and labile nitrogen (NL) for physical stabilization appear as the most suitable indicators. Higher values of HWEOC indicate the OC stabilization by decreasing decomposition, pH or by increasing carbonates, recalcitrant fractions, and higher values of NL by OC incorporation into the silt fraction and larger macro-aggregates. In the AE with RT, these are the HWEOC for chemical stabilization and carbon pool index (CPI) or index of carbon lability (LIC) for physical stabilization. Higher values of CPI and LIC indicate the stabilization by the formation of size-optimal dry-sieved (DSA; 1-3 mm) and wet-sieved (WSA; 1-2 mm) soil aggregates. In the AE with CT, it was the NL. Its higher values point to the stabilization through the carbonates, alkaline cations, size-fraction of &gt; 0.01 mm and the formation of DSA (1-3 mm). For a depth of &lt; 0.3 m in the AE, these are the CL (for RT), higher value of which points to the stabilization by clay and alkaline cations, and HWEOC (for CT), higher value of which indicates the stabilization in the conditions of the soil acidification.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

40104 - Soil science

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

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

1805-9384

Volume of the periodical

20

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

17

Pages from-to

52-68

UT code for WoS article

001390219500001

EID of the result in the Scopus database

2-s2.0-85215400150