How does the chemical composition of dung affect nitrous oxide and methane emissions in pasture soils?

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorThe University of Queensland-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.contributorUniversidade Federal de Mato Grosso do Sul (UFMS)-
Autor(es): dc.contributorUniversity of Wisconsin-
Autor(es): dc.creatorAmaral Júnior, Francisco Paulo-
Autor(es): dc.creatorSouza de Sousa, Camila Eduarda-
Autor(es): dc.creatorRafael de Almeida Moreira, Bruno-
Autor(es): dc.creatorRodrigues Alves, Bruno José-
Autor(es): dc.creatorLonghini, Vanessa Zirondi-
Autor(es): dc.creatorda Silva Cardoso, Abmael-
Autor(es): dc.creatorRuggieri, Ana Cláudia-
Data de aceite: dc.date.accessioned2025-08-21T18:54:19Z-
Data de disponibilização: dc.date.available2025-08-21T18:54:19Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jenvman.2024.123630-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/301644-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/301644-
Descrição: dc.descriptionThere is an important gap in how variations in herbivore dung composition affect GHG emissions on pastures, especially due to differences in dry matter (DM) and nitrogen contents. Oversimplifications can compromise the accuracy of mitigation strategies. This study aims to address this gap by investigating how the chemical composition of dung from different species influences GHG emissions in pasture systems. The results showed that drier dung led to higher cumulative N₂O emissions. The highest emissions were observed from goat at 9.47 mg N-N₂O g⁻1 dry soil, followed by sheep at 5.95 mg N-N₂O g⁻1 dry soil, beef cattle at 5.44 mg N₂O g⁻1 dry soil, dairy cattle at 2.67 mg N₂O g⁻1 dry soil, and horse at 0.83 mg N₂O g⁻1 dry soil. It was observed that higher dung moisture content generally corresponded to increased CH₄ emissions, except for horse dung. The highest cumulative CH₄ emission was for dairy cattle dung (8.29 mg C-CH₄ g⁻1 dry soil), followed by beef cattle (3.89 mg C-CH₄ g⁻1 dry soil), sheep (2.32 mg C-CH₄ g⁻1 dry soil), goats (1.89 mg C-CH₄ g⁻1 dry soil), and horses (1.66 mg C-CH₄ g⁻1 dry soil). Principal Component Analysis illustrated that PC1, named as diet quality, explained 61.9% of the variance, was positively correlated with N₂O and negatively correlated with fiber content and C/N ratio, while PC2, named as acetrophic and hydrogenotrophic methanogenesis, explained 19.6% of the variance, linking VS to reduced CH₄ emissions. This study establishes relationships between manure chemical composition and GHG emissions, filling a fundamental knowledge gap and supporting the development of cause-and-effect models.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionDepartment of Animal Science School of Agricultural and Veterinary Sciences Sao Paulo State University (UNESP), SP-
Descrição: dc.descriptionCentre for Crop Sciences Queensland Alliance for Agriculture and Food Innovation (QAAFI) The University of Queensland-
Descrição: dc.descriptionBrazilian Research Corporation (EMBRAPA), RJ-
Descrição: dc.descriptionFederal University of Mato Grosso Do Sul (UFMS), MS-
Descrição: dc.descriptionUniversity of Wisconsin-
Descrição: dc.descriptionDepartment of Animal Science School of Agricultural and Veterinary Sciences Sao Paulo State University (UNESP), SP-
Idioma: dc.languageen-
Relação: dc.relationJournal of Environmental Management-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAnimal excreta-
Palavras-chave: dc.subjectClimate change-
Palavras-chave: dc.subjectGlobal warming potential-
Palavras-chave: dc.subjectGreenhouse gas emissions-
Palavras-chave: dc.subjectLivestock-
Palavras-chave: dc.subjectSustainable development-
Título: dc.titleHow does the chemical composition of dung affect nitrous oxide and methane emissions in pasture soils?-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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