Biochar effect on the mineralization of soil organic matter
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/9849 |
Resumo: | The objective of this work was to verify whether the addition of biochar to the soil affects the degradation of litter and of soil organic matter (SOM). In order to investigate the effect of biochar on the mineralization of barley straw, soil was incubated with 14C-labelled barley straw with or without unlabelled biochar. To investigate the effect of straw on the mineralization of biochar, soil was incubated with 14C-labelled biochar with or without straw. In addition, to investigate the effect of biochar on old SOM, a soil labelled by applying labelled straw 40 years ago was incubated with different levels of biochar. All experiments had a control treatment, without any soil amendment. The effect of biochar on the straw mineralization was small and nonsignificant. Without biochar, 48±0.2% of the straw carbon was mineralized within the 451 days of the experiment. In comparison, 45±1.6% of C was mineralized after biochar addition of 1.5 g kg-1. In the SOM‑labelled soil, the organic matter mineralized more slowly with the increasing doses of biochar. Biochar addition at 7.7 g kg-1 reduced SOM mineralization from 6.6 to 6.3%, during the experimental period. The addition of 15.5 g kg-1 of biochar reduced the mineralized SOM to 5.7%. There is no evidence of increased degradation of either litter or SOM due to biochar addition; consequently, there is no evidence of decreased stability of SOM. |
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Biochar effect on the mineralization of soil organic matterBiochar effect on the mineralization of soil organic matteranthropogenic dark earth; organic matter stability; priming effect; radiocarbonterra preta de índio; estabilidade da matéria orgânica; efeito “priming”; radiocarbonoThe objective of this work was to verify whether the addition of biochar to the soil affects the degradation of litter and of soil organic matter (SOM). In order to investigate the effect of biochar on the mineralization of barley straw, soil was incubated with 14C-labelled barley straw with or without unlabelled biochar. To investigate the effect of straw on the mineralization of biochar, soil was incubated with 14C-labelled biochar with or without straw. In addition, to investigate the effect of biochar on old SOM, a soil labelled by applying labelled straw 40 years ago was incubated with different levels of biochar. All experiments had a control treatment, without any soil amendment. The effect of biochar on the straw mineralization was small and nonsignificant. Without biochar, 48±0.2% of the straw carbon was mineralized within the 451 days of the experiment. In comparison, 45±1.6% of C was mineralized after biochar addition of 1.5 g kg-1. In the SOM‑labelled soil, the organic matter mineralized more slowly with the increasing doses of biochar. Biochar addition at 7.7 g kg-1 reduced SOM mineralization from 6.6 to 6.3%, during the experimental period. The addition of 15.5 g kg-1 of biochar reduced the mineralized SOM to 5.7%. There is no evidence of increased degradation of either litter or SOM due to biochar addition; consequently, there is no evidence of decreased stability of SOM.The objective of this work was to verify whether the addition of biochar to the soil affects the degradation of litter and of soil organic matter (SOM). In order to investigate the effect of biochar on the mineralization of barley straw, soil was incubated with 14C-labelled barley straw with or without unlabelled biochar. To investigate the effect of straw on the mineralization of biochar, soil was incubated with 14C-labelled biochar with or without straw. In addition, to investigate the effect of biochar on old SOM, a soil labelled by applying labelled straw 40 years ago was incubated with different levels of biochar. All experiments had a control treatment, without any soil amendment. The effect of biochar on the straw mineralization was small and nonsignificant. Without biochar, 48±0.2% of the straw carbon was mineralized within the 451 days of the experiment. In comparison, 45±1.6% of C was mineralized after biochar addition of 1.5 g kg‑1. In the SOM‑labelled soil, the organic matter mineralized more slowly with the increasing doses of biochar. Biochar addition at 7.7 g kg‑1 reduced SOM mineralization from 6.6 to 6.3%, during the experimental period. The addition of 15.5 g kg‑1 of biochar reduced the mineralized SOM to 5.7%. There is no evidence of increased degradation of either litter or SOM due to biochar addition; consequently, there is no evidence of decreased stability of SOM.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraGluds LegatBruun, SanderEL-Zahery, Tarek2012-06-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/9849Pesquisa Agropecuaria Brasileira; v.47, n.5, maio 2012: 3rd International Biochar Conference; 665-671Pesquisa Agropecuária Brasileira; v.47, n.5, maio 2012: 3rd International Biochar Conference; 665-6711678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAengporhttps://seer.sct.embrapa.br/index.php/pab/article/view/9849/6913https://seer.sct.embrapa.br/index.php/pab/article/view/9849/7432https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/9849/5126https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/9849/5127https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/9849/5129https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/9849/8119https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/9849/8120info:eu-repo/semantics/openAccess2012-08-02T14:40:46Zoai:ojs.seer.sct.embrapa.br:article/9849Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2012-08-02T14:40:46Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Biochar effect on the mineralization of soil organic matter Biochar effect on the mineralization of soil organic matter |
title |
Biochar effect on the mineralization of soil organic matter |
spellingShingle |
Biochar effect on the mineralization of soil organic matter Bruun, Sander anthropogenic dark earth; organic matter stability; priming effect; radiocarbon terra preta de índio; estabilidade da matéria orgânica; efeito “priming”; radiocarbono |
title_short |
Biochar effect on the mineralization of soil organic matter |
title_full |
Biochar effect on the mineralization of soil organic matter |
title_fullStr |
Biochar effect on the mineralization of soil organic matter |
title_full_unstemmed |
Biochar effect on the mineralization of soil organic matter |
title_sort |
Biochar effect on the mineralization of soil organic matter |
author |
Bruun, Sander |
author_facet |
Bruun, Sander EL-Zahery, Tarek |
author_role |
author |
author2 |
EL-Zahery, Tarek |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Gluds Legat |
dc.contributor.author.fl_str_mv |
Bruun, Sander EL-Zahery, Tarek |
dc.subject.por.fl_str_mv |
anthropogenic dark earth; organic matter stability; priming effect; radiocarbon terra preta de índio; estabilidade da matéria orgânica; efeito “priming”; radiocarbono |
topic |
anthropogenic dark earth; organic matter stability; priming effect; radiocarbon terra preta de índio; estabilidade da matéria orgânica; efeito “priming”; radiocarbono |
description |
The objective of this work was to verify whether the addition of biochar to the soil affects the degradation of litter and of soil organic matter (SOM). In order to investigate the effect of biochar on the mineralization of barley straw, soil was incubated with 14C-labelled barley straw with or without unlabelled biochar. To investigate the effect of straw on the mineralization of biochar, soil was incubated with 14C-labelled biochar with or without straw. In addition, to investigate the effect of biochar on old SOM, a soil labelled by applying labelled straw 40 years ago was incubated with different levels of biochar. All experiments had a control treatment, without any soil amendment. The effect of biochar on the straw mineralization was small and nonsignificant. Without biochar, 48±0.2% of the straw carbon was mineralized within the 451 days of the experiment. In comparison, 45±1.6% of C was mineralized after biochar addition of 1.5 g kg-1. In the SOM‑labelled soil, the organic matter mineralized more slowly with the increasing doses of biochar. Biochar addition at 7.7 g kg-1 reduced SOM mineralization from 6.6 to 6.3%, during the experimental period. The addition of 15.5 g kg-1 of biochar reduced the mineralized SOM to 5.7%. There is no evidence of increased degradation of either litter or SOM due to biochar addition; consequently, there is no evidence of decreased stability of SOM. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-06-15 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/9849 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/9849 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/9849/6913 https://seer.sct.embrapa.br/index.php/pab/article/view/9849/7432 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/9849/5126 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/9849/5127 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/9849/5129 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/9849/8119 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/9849/8120 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.47, n.5, maio 2012: 3rd International Biochar Conference; 665-671 Pesquisa Agropecuária Brasileira; v.47, n.5, maio 2012: 3rd International Biochar Conference; 665-671 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416689340121088 |