Simulating soil carbon and nitrogen trends under an integrated system in the Brazilian Cerrado
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/62574 |
Resumo: | Management systems that include trees tend to provide higher amounts of plant biomass to the soil, contributing to the increase in carbon (C) and nitrogen (N) stocks. This study simulated C and N stocks and their compartments in a crop-livestock-forest integration system in the edafoclimatic conditions of the Maranhão Cerrado using the Century 4.5 model. The evaluated areas were native Cerrado vegetation (NV) and crop-livestock-forest integration (CLFI). The calibration process gradually modified the model parameters to better fit the simulated and observed soil C and N stocks. The best fit between the data was obtained after changes in the main parameters (DEC3(2), DEC4, and DEC5) that controlled the rate of decomposition of soil organic matter. C and N stocks increased by 14% and 15%, respectively, over 14 years after replacing NV with CLFI. The slow compartment of C presented greater sensitivity to changes in management, with an increase of 47% compared with that of NV. The active compartment increased by 31% and the passive compartment remained constant for over 14 years. Future scenarios, where pasture was maintained between the eucalyptus trees and the scenario that allowed the soybean, corn, and Brachiaria rotation between the trees, were more effective, accumulating approximately 37 Mg C ha-1. The continuous contribution of residues from the trees and pasture increased C and N stocks in the long-term in the slow fraction, where the total organic carbon increased from 32 to 36 Mg ha-1 when NV was replaced with CLFI. The model predicted the C and N stocks with accuracies ranging from 1 to 11% of the observed values |
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Simulating soil carbon and nitrogen trends under an integrated system in the Brazilian CerradoSimulating soil carbon and nitrogen trends under an integrated system in the Brazilian Cerradosoil organic matter; Century 4.5 model; carbon stocks; nitrogen stocksoil organic matter; Century 4.5 model; carbon stocks; nitrogen stockManagement systems that include trees tend to provide higher amounts of plant biomass to the soil, contributing to the increase in carbon (C) and nitrogen (N) stocks. This study simulated C and N stocks and their compartments in a crop-livestock-forest integration system in the edafoclimatic conditions of the Maranhão Cerrado using the Century 4.5 model. The evaluated areas were native Cerrado vegetation (NV) and crop-livestock-forest integration (CLFI). The calibration process gradually modified the model parameters to better fit the simulated and observed soil C and N stocks. The best fit between the data was obtained after changes in the main parameters (DEC3(2), DEC4, and DEC5) that controlled the rate of decomposition of soil organic matter. C and N stocks increased by 14% and 15%, respectively, over 14 years after replacing NV with CLFI. The slow compartment of C presented greater sensitivity to changes in management, with an increase of 47% compared with that of NV. The active compartment increased by 31% and the passive compartment remained constant for over 14 years. Future scenarios, where pasture was maintained between the eucalyptus trees and the scenario that allowed the soybean, corn, and Brachiaria rotation between the trees, were more effective, accumulating approximately 37 Mg C ha-1. The continuous contribution of residues from the trees and pasture increased C and N stocks in the long-term in the slow fraction, where the total organic carbon increased from 32 to 36 Mg ha-1 when NV was replaced with CLFI. The model predicted the C and N stocks with accuracies ranging from 1 to 11% of the observed valuesManagement systems that include trees tend to provide higher amounts of plant biomass to the soil, contributing to the increase in carbon (C) and nitrogen (N) stocks. This study simulated C and N stocks and their compartments in a crop-livestock-forest integration system in the edafoclimatic conditions of the Maranhão Cerrado using the Century 4.5 model. The evaluated areas were native Cerrado vegetation (NV) and crop-livestock-forest integration (CLFI). The calibration process gradually modified the model parameters to better fit the simulated and observed soil C and N stocks. The best fit between the data was obtained after changes in the main parameters (DEC3(2), DEC4, and DEC5) that controlled the rate of decomposition of soil organic matter. C and N stocks increased by 14% and 15%, respectively, over 14 years after replacing NV with CLFI. The slow compartment of C presented greater sensitivity to changes in management, with an increase of 47% compared with that of NV. The active compartment increased by 31% and the passive compartment remained constant for over 14 years. Future scenarios, where pasture was maintained between the eucalyptus trees and the scenario that allowed the soybean, corn, and Brachiaria rotation between the trees, were more effective, accumulating approximately 37 Mg C ha-1. The continuous contribution of residues from the trees and pasture increased C and N stocks in the long-term in the slow fraction, where the total organic carbon increased from 32 to 36 Mg ha-1 when NV was replaced with CLFI. The model predicted the C and N stocks with accuracies ranging from 1 to 11% of the observed valuesUniversidade Estadual de Maringá2023-10-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6257410.4025/actasciagron.v46i1.62574Acta Scientiarum. Agronomy; Vol 46 No 1 (2024): Publicação contínua; e62574Acta Scientiarum. Agronomy; v. 46 n. 1 (2024): Publicação contínua; e625741807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/62574/751375156520Copyright (c) 2024 Acta Scientiarum. Agronomyhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessVogado, Renato Falconeres Souza, Henrique Antunes de Althoff, Tiago Diniz Menezes, Rômulo Simões Cezar Gualberto, Adriano Veniciús Santana Cunha, João Rodrigues da Leite, Luiz Fernando Carvalho 2024-02-08T19:40:28Zoai:periodicos.uem.br/ojs:article/62574Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2024-02-08T19:40:28Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Simulating soil carbon and nitrogen trends under an integrated system in the Brazilian Cerrado Simulating soil carbon and nitrogen trends under an integrated system in the Brazilian Cerrado |
title |
Simulating soil carbon and nitrogen trends under an integrated system in the Brazilian Cerrado |
spellingShingle |
Simulating soil carbon and nitrogen trends under an integrated system in the Brazilian Cerrado Vogado, Renato Falconeres soil organic matter; Century 4.5 model; carbon stocks; nitrogen stock soil organic matter; Century 4.5 model; carbon stocks; nitrogen stock |
title_short |
Simulating soil carbon and nitrogen trends under an integrated system in the Brazilian Cerrado |
title_full |
Simulating soil carbon and nitrogen trends under an integrated system in the Brazilian Cerrado |
title_fullStr |
Simulating soil carbon and nitrogen trends under an integrated system in the Brazilian Cerrado |
title_full_unstemmed |
Simulating soil carbon and nitrogen trends under an integrated system in the Brazilian Cerrado |
title_sort |
Simulating soil carbon and nitrogen trends under an integrated system in the Brazilian Cerrado |
author |
Vogado, Renato Falconeres |
author_facet |
Vogado, Renato Falconeres Souza, Henrique Antunes de Althoff, Tiago Diniz Menezes, Rômulo Simões Cezar Gualberto, Adriano Veniciús Santana Cunha, João Rodrigues da Leite, Luiz Fernando Carvalho |
author_role |
author |
author2 |
Souza, Henrique Antunes de Althoff, Tiago Diniz Menezes, Rômulo Simões Cezar Gualberto, Adriano Veniciús Santana Cunha, João Rodrigues da Leite, Luiz Fernando Carvalho |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Vogado, Renato Falconeres Souza, Henrique Antunes de Althoff, Tiago Diniz Menezes, Rômulo Simões Cezar Gualberto, Adriano Veniciús Santana Cunha, João Rodrigues da Leite, Luiz Fernando Carvalho |
dc.subject.por.fl_str_mv |
soil organic matter; Century 4.5 model; carbon stocks; nitrogen stock soil organic matter; Century 4.5 model; carbon stocks; nitrogen stock |
topic |
soil organic matter; Century 4.5 model; carbon stocks; nitrogen stock soil organic matter; Century 4.5 model; carbon stocks; nitrogen stock |
description |
Management systems that include trees tend to provide higher amounts of plant biomass to the soil, contributing to the increase in carbon (C) and nitrogen (N) stocks. This study simulated C and N stocks and their compartments in a crop-livestock-forest integration system in the edafoclimatic conditions of the Maranhão Cerrado using the Century 4.5 model. The evaluated areas were native Cerrado vegetation (NV) and crop-livestock-forest integration (CLFI). The calibration process gradually modified the model parameters to better fit the simulated and observed soil C and N stocks. The best fit between the data was obtained after changes in the main parameters (DEC3(2), DEC4, and DEC5) that controlled the rate of decomposition of soil organic matter. C and N stocks increased by 14% and 15%, respectively, over 14 years after replacing NV with CLFI. The slow compartment of C presented greater sensitivity to changes in management, with an increase of 47% compared with that of NV. The active compartment increased by 31% and the passive compartment remained constant for over 14 years. Future scenarios, where pasture was maintained between the eucalyptus trees and the scenario that allowed the soybean, corn, and Brachiaria rotation between the trees, were more effective, accumulating approximately 37 Mg C ha-1. The continuous contribution of residues from the trees and pasture increased C and N stocks in the long-term in the slow fraction, where the total organic carbon increased from 32 to 36 Mg ha-1 when NV was replaced with CLFI. The model predicted the C and N stocks with accuracies ranging from 1 to 11% of the observed values |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-10-11 |
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 |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/62574 10.4025/actasciagron.v46i1.62574 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/62574 |
identifier_str_mv |
10.4025/actasciagron.v46i1.62574 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/62574/751375156520 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2024 Acta Scientiarum. Agronomy https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2024 Acta Scientiarum. Agronomy https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 46 No 1 (2024): Publicação contínua; e62574 Acta Scientiarum. Agronomy; v. 46 n. 1 (2024): Publicação contínua; e62574 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
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1799305901286359040 |