Nitrous oxide emissions in silvopastoral systems: Key driving variables and seasonality
Silvopastoral systems are suggested to be important strategies for mitigating greenhouse gas emissions. However, little information is available on the effects of these systems on soil nitrous oxide (N2O) production. Expanding the knowledge of N2O emissions and the responses of key variables that dr...
| Autores: | , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2022 |
| País: | Brasil |
| Institución: | Universidade Estadual Paulista (UNESP) |
| Repositorio: | Repositório Institucional da UNESP |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unesp.br:11449/234081 |
| Acceso en línea: | http://dx.doi.org/10.1016/j.agrformet.2022.108851 http://hdl.handle.net/11449/234081 |
| Access Level: | acceso abierto |
| Palabra clave: | Greenhouse gas emission mixed pasture N loss N2O driving variable N2O seasonality |
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Nitrous oxide emissions in silvopastoral systems: Key driving variables and seasonalityGreenhouse gas emissionmixed pastureN lossN2O driving variableN2O seasonalitySilvopastoral systems are suggested to be important strategies for mitigating greenhouse gas emissions. However, little information is available on the effects of these systems on soil nitrous oxide (N2O) production. Expanding the knowledge of N2O emissions and the responses of key variables that drive N2O production are essential for understanding nitrogen loss. To quantify these factors in the silvopastoral system (Eucalyptus grandis × Megathyrsus maximus) and the monoculture (Megathyrsus maximus Guinea Massai grass), we conducted a 4-year field assessment. The experimental design was a completely randomized block with two factors: (1) monoculture (MONO) and silvopastoral systems with tree rows of 12 m (SP1) and 6 m (SP2), and (2) two seasons (rainy and dry), with 5 repetitions. Emissions were quantified using the closed static chamber methodology and gas chromatography analysis. In the wet summer, the silvopasture system differed from MONO, while in the dry winter, only the SP1 group differed from the monoculture; N2O emissions were higher during the rainy season. The MONO treatment revealed larger N2O fluxes in the first year of evaluation, whereas the silvopasture systems peaked in a later year. A significant positive Pearson correlation was found between N2O fluxes and soil moisture (r=0.89; P < 0.001) and soil temperature (r=0.76; P< 0.01). Our study showed that the effect of the silvopastoral system was season-dependent. N2O emissions increased over the years in silvopastoral systems, as opposed to the monoculture, and were driven by soil moisture and temperature.Departament of Animal Science College of Agricultural and Veterinarian Science São Paulo State University Via de Acesso Professor Paulo Donato Castelane Castellane S/N Vila IndustrialDepartament of Exactal Ciences and Engineer College of Agricultural and Veterinarian Science São Paulo State University Via de Acesso Professor Paulo Donato Castelane Castellane S/N Vila IndustrialDepartment of Agronomy Institute of Food and Agricultural Sciences University of FloridaEmbrapa Agrobiologia, Rodovia BR-465, Km, 7Departament of Animal Science College of Agricultural and Veterinarian Science São Paulo State University Via de Acesso Professor Paulo Donato Castelane Castellane S/N Vila IndustrialDepartament of Exactal Ciences and Engineer College of Agricultural and Veterinarian Science São Paulo State University Via de Acesso Professor Paulo Donato Castelane Castellane S/N Vila IndustrialUniversidade Estadual Paulista (UNESP)University of FloridaEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)2022-05-01T13:11:37Z2022-05-01T13:11:37Z2022-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.agrformet.2022.108851Agricultural and Forest Meteorology, v. 316.0168-1923http://hdl.handle.net/11449/23408110.1016/j.agrformet.2022.1088512-s2.0-85123865704Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAgricultural and Forest Meteorologyinfo:eu-repo/semantics/openAccessCardoso, Abmael da Silva [UNESP]Alari, Fernando de Oliveira [UNESP]de Andrade, Nomaiací [UNESP]Nascimento, Tiago da Silva [UNESP]van Cleef, Flavia de Oliveira ScarpinoAlves, Bruno José RodriguesRuggieri, Ana Cláudia [UNESP]Malheiros, Euclides Braga [UNESP]2024-06-07T18:38:49Zoai:repositorio.unesp.br:11449/234081Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-06-07T18:38:49Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
| dc.title.none.fl_str_mv |
Nitrous oxide emissions in silvopastoral systems: Key driving variables and seasonality |
| title |
Nitrous oxide emissions in silvopastoral systems: Key driving variables and seasonality |
| spellingShingle |
Nitrous oxide emissions in silvopastoral systems: Key driving variables and seasonality Cardoso, Abmael da Silva [UNESP] Greenhouse gas emission mixed pasture N loss N2O driving variable N2O seasonality |
| title_short |
Nitrous oxide emissions in silvopastoral systems: Key driving variables and seasonality |
| title_full |
Nitrous oxide emissions in silvopastoral systems: Key driving variables and seasonality |
| title_fullStr |
Nitrous oxide emissions in silvopastoral systems: Key driving variables and seasonality |
| title_full_unstemmed |
Nitrous oxide emissions in silvopastoral systems: Key driving variables and seasonality |
| title_sort |
Nitrous oxide emissions in silvopastoral systems: Key driving variables and seasonality |
| dc.creator.none.fl_str_mv |
Cardoso, Abmael da Silva [UNESP] Alari, Fernando de Oliveira [UNESP] de Andrade, Nomaiací [UNESP] Nascimento, Tiago da Silva [UNESP] van Cleef, Flavia de Oliveira Scarpino Alves, Bruno José Rodrigues Ruggieri, Ana Cláudia [UNESP] Malheiros, Euclides Braga [UNESP] |
| author |
Cardoso, Abmael da Silva [UNESP] |
| author_facet |
Cardoso, Abmael da Silva [UNESP] Alari, Fernando de Oliveira [UNESP] de Andrade, Nomaiací [UNESP] Nascimento, Tiago da Silva [UNESP] van Cleef, Flavia de Oliveira Scarpino Alves, Bruno José Rodrigues Ruggieri, Ana Cláudia [UNESP] Malheiros, Euclides Braga [UNESP] |
| author_role |
author |
| author2 |
Alari, Fernando de Oliveira [UNESP] de Andrade, Nomaiací [UNESP] Nascimento, Tiago da Silva [UNESP] van Cleef, Flavia de Oliveira Scarpino Alves, Bruno José Rodrigues Ruggieri, Ana Cláudia [UNESP] Malheiros, Euclides Braga [UNESP] |
| author2_role |
author author author author author author author |
| dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) University of Florida Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) |
| dc.subject.por.fl_str_mv |
Greenhouse gas emission mixed pasture N loss N2O driving variable N2O seasonality |
| topic |
Greenhouse gas emission mixed pasture N loss N2O driving variable N2O seasonality |
| description |
Silvopastoral systems are suggested to be important strategies for mitigating greenhouse gas emissions. However, little information is available on the effects of these systems on soil nitrous oxide (N2O) production. Expanding the knowledge of N2O emissions and the responses of key variables that drive N2O production are essential for understanding nitrogen loss. To quantify these factors in the silvopastoral system (Eucalyptus grandis × Megathyrsus maximus) and the monoculture (Megathyrsus maximus Guinea Massai grass), we conducted a 4-year field assessment. The experimental design was a completely randomized block with two factors: (1) monoculture (MONO) and silvopastoral systems with tree rows of 12 m (SP1) and 6 m (SP2), and (2) two seasons (rainy and dry), with 5 repetitions. Emissions were quantified using the closed static chamber methodology and gas chromatography analysis. In the wet summer, the silvopasture system differed from MONO, while in the dry winter, only the SP1 group differed from the monoculture; N2O emissions were higher during the rainy season. The MONO treatment revealed larger N2O fluxes in the first year of evaluation, whereas the silvopasture systems peaked in a later year. A significant positive Pearson correlation was found between N2O fluxes and soil moisture (r=0.89; P < 0.001) and soil temperature (r=0.76; P< 0.01). Our study showed that the effect of the silvopastoral system was season-dependent. N2O emissions increased over the years in silvopastoral systems, as opposed to the monoculture, and were driven by soil moisture and temperature. |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022-05-01T13:11:37Z 2022-05-01T13:11:37Z 2022-04-01 |
| dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.agrformet.2022.108851 Agricultural and Forest Meteorology, v. 316. 0168-1923 http://hdl.handle.net/11449/234081 10.1016/j.agrformet.2022.108851 2-s2.0-85123865704 |
| url |
http://dx.doi.org/10.1016/j.agrformet.2022.108851 http://hdl.handle.net/11449/234081 |
| identifier_str_mv |
Agricultural and Forest Meteorology, v. 316. 0168-1923 10.1016/j.agrformet.2022.108851 2-s2.0-85123865704 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
Agricultural and Forest Meteorology |
| dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
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Universidade Estadual Paulista (UNESP) |
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UNESP |
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UNESP |
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Repositório Institucional da UNESP |
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Repositório Institucional da UNESP |
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Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
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repositoriounesp@unesp.br |
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1853671405919404032 |
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15.301603 |