The influence of biochar on the content of carbon and the chemical transformations of fallow and grassland humic acids

Abstract There is limited information regarding the effect of biochar (BioC) on the fertility of fallow and grassland soils, as well as on the properties of their humic acids (HAs). The objective of this study was to evaluate with a 3-year field experiment the influence of BioC on the organic matter...

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Autores principales:	Marta Cybulak, Zofia Sokołowska, Patrycja Boguta
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5444de493fd4453ca0a8014a0868003d
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spelling	oai:doaj.org-article:5444de493fd4453ca0a8014a0868003d2021-12-02T13:35:04ZThe influence of biochar on the content of carbon and the chemical transformations of fallow and grassland humic acids10.1038/s41598-021-85239-w2045-2322https://doaj.org/article/5444de493fd4453ca0a8014a0868003d2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85239-whttps://doaj.org/toc/2045-2322Abstract There is limited information regarding the effect of biochar (BioC) on the fertility of fallow and grassland soils, as well as on the properties of their humic acids (HAs). The objective of this study was to evaluate with a 3-year field experiment the influence of BioC on the organic matter (OM) in Haplic Luvisol. BioC (obtained via wood waste pyrolysis at 650 °C) was applied to the soil of subplots under fallow and grassland at doses of 0, 1, 2 and 3 kg m−2. The soil samples were collected eight times. The physicochemical properties were determined for the soil and BioC by analysing the density, pH, surface charge, ash, and organic carbon content. Based on the changes in the structure of the HAs and their quantity in the soils, the chemical properties of the HAs were determined. The maximum BioC dose caused an increase in the content of Corg and HAs. BioC did not influence the humification degree coefficients of the HAs originated from fallow, whereas in the grassland, there were significant changes observed in these coefficient values, indicating that BioC may stimulate and accelerate the humification process of soil HAs. Increasing the BioC doses caused an increase in the soil’s HA content, suggesting an increase in soil sorption capacity. The fluorescence data showed BioC addition to the soil caused an increase in the number of structures characterised by low molecular weight and a low degree of humification.Marta CybulakZofia SokołowskaPatrycja BogutaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Marta Cybulak Zofia Sokołowska Patrycja Boguta The influence of biochar on the content of carbon and the chemical transformations of fallow and grassland humic acids
description	Abstract There is limited information regarding the effect of biochar (BioC) on the fertility of fallow and grassland soils, as well as on the properties of their humic acids (HAs). The objective of this study was to evaluate with a 3-year field experiment the influence of BioC on the organic matter (OM) in Haplic Luvisol. BioC (obtained via wood waste pyrolysis at 650 °C) was applied to the soil of subplots under fallow and grassland at doses of 0, 1, 2 and 3 kg m−2. The soil samples were collected eight times. The physicochemical properties were determined for the soil and BioC by analysing the density, pH, surface charge, ash, and organic carbon content. Based on the changes in the structure of the HAs and their quantity in the soils, the chemical properties of the HAs were determined. The maximum BioC dose caused an increase in the content of Corg and HAs. BioC did not influence the humification degree coefficients of the HAs originated from fallow, whereas in the grassland, there were significant changes observed in these coefficient values, indicating that BioC may stimulate and accelerate the humification process of soil HAs. Increasing the BioC doses caused an increase in the soil’s HA content, suggesting an increase in soil sorption capacity. The fluorescence data showed BioC addition to the soil caused an increase in the number of structures characterised by low molecular weight and a low degree of humification.
format	article
author	Marta Cybulak Zofia Sokołowska Patrycja Boguta
author_facet	Marta Cybulak Zofia Sokołowska Patrycja Boguta
author_sort	Marta Cybulak
title	The influence of biochar on the content of carbon and the chemical transformations of fallow and grassland humic acids
title_short	The influence of biochar on the content of carbon and the chemical transformations of fallow and grassland humic acids
title_full	The influence of biochar on the content of carbon and the chemical transformations of fallow and grassland humic acids
title_fullStr	The influence of biochar on the content of carbon and the chemical transformations of fallow and grassland humic acids
title_full_unstemmed	The influence of biochar on the content of carbon and the chemical transformations of fallow and grassland humic acids
title_sort	influence of biochar on the content of carbon and the chemical transformations of fallow and grassland humic acids
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/5444de493fd4453ca0a8014a0868003d
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The influence of biochar on the content of carbon and the chemical transformations of fallow and grassland humic acids

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