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

Journal of Hydrology and Hydromechanics

Buchkina Natalya P.¹  Igaz Dušan²  Horák Ján²  Pauková Žaneta³  Šimanský Vladimír⁴  Juriga Martin⁴  Kolenčík Marek⁴  Šrank Dušan⁴  Šurda Peter⁵  Uzarowicz Łukasz⁶ 

[1] Agrophysical Research Institute, 14 Grazhdansky prospect, 195220St. Petersburg, Russian Federation.;Department of Biometeorology and Hydrology, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture, Tr. A. Hlinku 2, 94901Nitra, Slovakia.;Department of Ecology, Faculty of European Studies and Regional Development, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76Nitra, Slovakia.;Department of Soil Science, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Tr. A. Hlinku 2, 949 76Nitra, Slovakia.;Institute of Hydrology, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04Bratislava, Slovakia.;Warsaw University of Life Sciences SGGW, Faculty of Agriculture and Biology, Department of Soil Environment Sciences, Nowoursynowska Str. 159, building no. 37, 02-776Warsaw, Poland.;

关键词: soil structure;    soil organic carbon;    labile carbon;    aggregate stability;    biochar;    n fertilizer;   

DOI  :  10.2478/johh-2018-0033

来源: DOAJ

【 摘 要 】

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).

【 授权许可】

Unknown