Changes in organic molecular marker signatures in soils amended with biochar during a three-year experiment with maize on a Fluvisol
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...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2022-12-01
|
| Series: | Journal of Hydrology and Hydromechanics |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/johh-2022-0025 |
| _version_ | 1811213387690934272 |
|---|---|
| author | Atanassova Irena Harizanova Milena Benkova Maya Doerr Stefan H. |
| author_facet | Atanassova Irena Harizanova Milena Benkova Maya Doerr Stefan H. |
| author_sort | Atanassova Irena |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-04-12T05:44:49Z |
| format | Article |
| id | doaj.art-fbd57198b5114cb380aaa3eea4e6421f |
| institution | Directory Open Access Journal |
| issn | 1338-4333 |
| language | English |
| last_indexed | 2024-04-12T05:44:49Z |
| publishDate | 2022-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Journal of Hydrology and Hydromechanics |
| spelling | doaj.art-fbd57198b5114cb380aaa3eea4e6421f2022-12-22T03:45:29ZengSciendoJournal of Hydrology and Hydromechanics1338-43332022-12-0170440140910.2478/johh-2022-0025Changes in organic molecular marker signatures in soils amended with biochar during a three-year experiment with maize on a FluvisolAtanassova Irena0Harizanova Milena1Benkova Maya2Doerr Stefan H.3Institute of Soil Science, Agrotechnologies and Plant Protection, Department of Agrochemistry, Agroecology and Soil Tillage, 7 Shosse Bankya Str., Sofia 1331, Bulgaria.Institute of Soil Science, Agrotechnologies and Plant Protection, Department of Agrochemistry, Agroecology and Soil Tillage, 7 Shosse Bankya Str., Sofia 1331, Bulgaria.Institute of Soil Science, Agrotechnologies and Plant Protection, Department of Agrochemistry, Agroecology and Soil Tillage, 7 Shosse Bankya Str., Sofia 1331, Bulgaria.Department of Geography, College of Science, Swansea University, Singleton Park, Swansea SA2 8PP, UK.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.https://doi.org/10.2478/johh-2022-0025biocharorganic molecular markersfluvisol |
| spellingShingle | Atanassova Irena Harizanova Milena Benkova Maya Doerr Stefan H. Changes in organic molecular marker signatures in soils amended with biochar during a three-year experiment with maize on a Fluvisol Journal of Hydrology and Hydromechanics biochar organic molecular markers fluvisol |
| title | 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_short | 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 |
| topic | biochar organic molecular markers fluvisol |
| url | https://doi.org/10.2478/johh-2022-0025 |
| work_keys_str_mv | AT atanassovairena changesinorganicmolecularmarkersignaturesinsoilsamendedwithbiocharduringathreeyearexperimentwithmaizeonafluvisol AT harizanovamilena changesinorganicmolecularmarkersignaturesinsoilsamendedwithbiocharduringathreeyearexperimentwithmaizeonafluvisol AT benkovamaya changesinorganicmolecularmarkersignaturesinsoilsamendedwithbiocharduringathreeyearexperimentwithmaizeonafluvisol AT doerrstefanh changesinorganicmolecularmarkersignaturesinsoilsamendedwithbiocharduringathreeyearexperimentwithmaizeonafluvisol |