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Changes in organic molecular marker signatures in soils amended with biochar during a three-year experiment with maize on a Fluvisol

Irena Atanassova, Milena Harizanova, Maya Benkova, Stefan Doerr Orcid Logo

Journal of Hydrology and Hydromechanics, Volume: 70, Issue: 4, Pages: 401 - 409

Swansea University Author: Stefan Doerr Orcid Logo

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DOI (Published version): 10.2478/johh-2022-0025

Abstract

Biochar is widely used as a soil amendment to improve soil properties and as a tool to absorb net carbon from the atmosphere. In this study we determined the signatures of organic molecular markers in soil following the incorporation of 5 and 10 t/ha biochar in a Fluvisol, cultivated with maize at t...

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Published in: Journal of Hydrology and Hydromechanics
ISSN: 1338-4333
Published: Walter de Gruyter GmbH 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa62175
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spelling 2022-12-30T13:21:24.5558061 v2 62175 2022-12-15 Changes in organic molecular marker signatures in soils amended with biochar during a three-year experiment with maize on a Fluvisol 575eb5094f2328249328b3e43deb5088 0000-0002-8700-9002 Stefan Doerr Stefan Doerr true false 2022-12-15 SGE Biochar is widely used as a soil amendment to improve soil properties and as a tool to absorb net carbon from the atmosphere. In this study we determined the signatures of organic molecular markers in soil following the incorporation of 5 and 10 t/ha biochar in a Fluvisol, cultivated with maize at the experimental field of the ISSAPP "N. Poushkarov"institute in Bulgaria. The n-alkane distribution in the biochar treated soils was uni- or bimodal maximizing at n-C17 alkane, n-C18 or C18 branched alkanes, i.e. there was an imprint of biomass burning, e.g. from the biochar due to predominance of short chain (< C20) homologues and increased microbial activity (presence of branched alkanes). This is also confirmed by the values for the average chain length (ACL) of n-alkanes which indicated prevalence of homologues of shorter chain (20-21 C atoms) in the variants of longer biochar residence time. There was evidence of trans-13-docosenamide, which originated from biochar. Fatty acids and fatty alcohols distributions also implicate microbial contribution to soil organic matter (SOM), supporting the suggestion that biochar addition can improve soil microbiological status. Journal Article Journal of Hydrology and Hydromechanics 70 4 401 409 Walter de Gruyter GmbH 1338-4333 Biochar; Organic molecular markers; Fluvisol 1 12 2022 2022-12-01 10.2478/johh-2022-0025 COLLEGE NANME Geography COLLEGE CODE SGE Swansea University The study was financially supported by the Project KP 06-H26/7 (2018-2021) of the NSF of the Ministry of Education and Science in Bulgaria. 2022-12-30T13:21:24.5558061 2022-12-15T10:18:12.5637993 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography Irena Atanassova 1 Milena Harizanova 2 Maya Benkova 3 Stefan Doerr 0000-0002-8700-9002 4 62175__26088__e2b446b47d1e41b6bca62bdff61e0612.pdf 62175.pdf 2022-12-15T14:38:00.4281851 Output 645839 application/pdf Version of Record true ©2022 Irena Atanassova et al., published by Sciendo. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence. true eng http://creativecommons.org/licenses/by-nc-nd/4.0/
title Changes in organic molecular marker signatures in soils amended with biochar during a three-year experiment with maize on a Fluvisol
spellingShingle Changes in organic molecular marker signatures in soils amended with biochar during a three-year experiment with maize on a Fluvisol
Stefan Doerr
title_short Changes in organic molecular marker signatures in soils amended with biochar during a three-year experiment with maize on a Fluvisol
title_full Changes in organic molecular marker signatures in soils amended with biochar during a three-year experiment with maize on a Fluvisol
title_fullStr Changes in organic molecular marker signatures in soils amended with biochar during a three-year experiment with maize on a Fluvisol
title_full_unstemmed Changes in organic molecular marker signatures in soils amended with biochar during a three-year experiment with maize on a Fluvisol
title_sort Changes in organic molecular marker signatures in soils amended with biochar during a three-year experiment with maize on a Fluvisol
author_id_str_mv 575eb5094f2328249328b3e43deb5088
author_id_fullname_str_mv 575eb5094f2328249328b3e43deb5088_***_Stefan Doerr
author Stefan Doerr
author2 Irena Atanassova
Milena Harizanova
Maya Benkova
Stefan Doerr
format Journal article
container_title Journal of Hydrology and Hydromechanics
container_volume 70
container_issue 4
container_start_page 401
publishDate 2022
institution Swansea University
issn 1338-4333
doi_str_mv 10.2478/johh-2022-0025
publisher Walter de Gruyter GmbH
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Geography{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Geography
document_store_str 1
active_str 0
description Biochar is widely used as a soil amendment to improve soil properties and as a tool to absorb net carbon from the atmosphere. In this study we determined the signatures of organic molecular markers in soil following the incorporation of 5 and 10 t/ha biochar in a Fluvisol, cultivated with maize at the experimental field of the ISSAPP "N. Poushkarov"institute in Bulgaria. The n-alkane distribution in the biochar treated soils was uni- or bimodal maximizing at n-C17 alkane, n-C18 or C18 branched alkanes, i.e. there was an imprint of biomass burning, e.g. from the biochar due to predominance of short chain (< C20) homologues and increased microbial activity (presence of branched alkanes). This is also confirmed by the values for the average chain length (ACL) of n-alkanes which indicated prevalence of homologues of shorter chain (20-21 C atoms) in the variants of longer biochar residence time. There was evidence of trans-13-docosenamide, which originated from biochar. Fatty acids and fatty alcohols distributions also implicate microbial contribution to soil organic matter (SOM), supporting the suggestion that biochar addition can improve soil microbiological status.
published_date 2022-12-01T04:21:35Z
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score 11.016235

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