Mateja Muršec (Avtor), Jean Leveque (Avtor)

Povzetek

The effect of drip irrigation on the origin and size fraction of soil organic carbon was studied in the soils of an apple orchard (Malus domestica Borkh.) on hilly (20%) terrain in northeastern Slovenia in three slope positions (upslope, midslope and downslope), comparing irrigated with non-irrigated soils. Physical fractionation of soil organic carbon was performed on three soil layers (0–0.05, 0.05–0.15 and 0.15–0.30 m) in three size fractions: fraction A (> 0.0002 m), fraction B (0.0002‒0.00005 m) and fraction C (< 0.00005 m). Fraction A was the richest in soil organic carbon (7.7%), but fraction C was the dominant fraction in the total soil volume (86‒92%), making it the largest source of soil organic carbon (73%). The δ13C signature was performed to determine the existence of two different types (origins) of soil organic carbon: fresh and sedimentary. Fresh organic carbon dominates in the A fraction, while sedimentary organic carbon dominates in the C fraction and may contribute to higher structural stability, besides higher carbonates in the finest fraction. Irrigation mainly contributes to the higher stock of soil organic carbon (predominantly fresh and less sedimentary) in the coarse A fraction (21.14 t/ha in irrigated and 14.17 t/ha in non-irrigated soils).

Ključne besede

CaCO3;carbon isotopes;drip irrigation;physical fractionation;soil organic matter;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UM FKBV - Fakulteta za kmetijstvo in biosistemske vede
Založnik: Institute of Agricultural Economics and Information
UDK: 631.4
COBISS: 152677891 Povezava se bo odprla v novem oknu
ISSN: 1801-5395
Št. ogledov: 30
Št. prenosov: 2
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: ogljikovi izotopi;kapljično namakanje;fizikalna frakcionacija;organske snovi v tleh;
Vrsta dela (COBISS): Znanstveno delo
Strani: str. 81-88
Letnik: ǂVol. ǂ18
Zvezek: ǂNo. ǂ2
Čas izdaje: 2023
DOI: 10.17221/101/2022-SWR
ID: 22778434