Response of soil organic carbon and water-stable aggregates to different biochar treatments including nitrogen fertilization

Autor: Šimanský Vladimír, Igaz Dušan, Horák Ján, Šurda Peter, Kolenčík Marek, Buchkina Natalya P., Uzarowicz Łukasz, Juriga Martin, Šrank Dušan, Pauková Žaneta
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Journal of Hydrology and Hydromechanics, Vol 66, Iss 4, Pp 429-436 (2018)
Druh dokumentu: article
ISSN: 0042-790X
DOI: 10.2478/johh-2018-0033
Popis: Recent studies show that biochar improves physical properties of soils and contributes to the carbon sequestration. In contrast to most other studies on biochar, the present study comprise a long-term field experiment with a special focus on the simultaneous impact of N-fertilizer to soil structure parameters and content of soil organic carbon (SOC) since SOC has been linked to improved aggregate stability. However, the question remains: how does the content of water-stable aggregates change with the content of organic matter? In this paper we investigate the effects of biochar alone and in a combination with N-fertilizer (i) on the content of water-stable macro- (WSAma) and micro-aggregates (WSAmi) as well as soil structure parameters; and (ii) on the contents of SOC and labile carbon (CL) in water-stable aggregates (WSA).
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