Methane concentrations and fluxes in agricultural and preserved tropical headwater streams

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorFederal University of ABC-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversity of Wisconsin-Madison-
Autor(es): dc.contributorUniversity of Maryland Center for Environmental Science-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorTaniwaki, Ricardo Hideo-
Autor(es): dc.creatorCunha, Davi Gasparini Fernandes-
Autor(es): dc.creatorBento, Camila Bolfarini-
Autor(es): dc.creatorMartinelli, Luiz Antonio-
Autor(es): dc.creatorStanley, Emily H.-
Autor(es): dc.creatorFiloso, Solange-
Autor(es): dc.creatorFerreira, Murilo de Souza-
Autor(es): dc.creatorFrança, Marcus Vinícius-
Autor(es): dc.creatorRibeiro Júnior, José Wagner-
Autor(es): dc.creatorSchiesari, Luis César-
Autor(es): dc.creatordo Carmo, Janaína Braga-
Data de aceite: dc.date.accessioned2025-08-21T17:54:33Z-
Data de disponibilização: dc.date.available2025-08-21T17:54:33Z-
Data de envio: dc.date.issued2023-03-02-
Data de envio: dc.date.issued2023-03-02-
Data de envio: dc.date.issued2022-10-19-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.scitotenv.2022.157238-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/242049-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/242049-
Descrição: dc.descriptionTropical streams have been intensively impacted by agricultural activities. Among the most important agricultural activities in Brazil, sugarcane production represents a large impact for economic development and for environmental conditions. Permeating sugarcane fields, several headwater streams can be affected by sugarcane cultivation, in special, aquatic biogeochemical cycles because of the deforestation, fertilization, crop residues and higher temperatures in the tropics. In this study, we analyzed the effects of sugarcane cultivation on methane fluxes and concentrations, assuming that carbon cycles are influenced by agricultural activities in headwater streams. Our study aimed to (1) measure methane fluxes and concentrations in tropical streams located in Southeastern Brazil, (2) Analyze whether seasonal cycles influence methane fluxes and concentrations, (3) Evaluate the influence of sugarcane cultivation on methane fluxes and (4) Analyze the association between water chemistry in the methane concentrations in tropical streams. We found mean fluxes of CH4 of 0.280 mmol m−2 d−1, with higher fluxes during the summer and in streams draining preserved catchments. The average CH4 concentrations were 0.695 μmol L−1, with higher values during the summer and in streams draining preserved catchments. Methane concentrations in the studied streams was influenced by dissolved oxygen (negatively), dissolved organic carbon (negatively), water velocity (positively) and conductivity (negatively). Methane concentrations were significantly higher than concentrations found in Temperate Grasslands, Savannas & Shrublands and similar to concentrations found in other tropical biomes (excluding Tropical & Subtropical Moist Broadleaf Forests which receives large amounts of organic inputs). We conclude that sugarcane influence methane concentrations and fluxes in tropical streams by reducing the organic matter availability provided by the native vegetation in soil and water.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCenter for Engineering Modelling and Applied Social Sciences Federal University of ABC, SP-
Descrição: dc.descriptionDepartamento de Hidráulica e Saneamento Escola de Engenharia de São Carlos Universidade de São Paulo, SP-
Descrição: dc.descriptionGraduate Program in Biotechnology and Environmental Monitoring Federal University of São Carlos, SP-
Descrição: dc.descriptionIsotopic Ecology Laboratory Center of Nuclear Energy in Agriculture University of São Paulo, SP-
Descrição: dc.descriptionCenter for Limnology University of Wisconsin-Madison-
Descrição: dc.descriptionChesapeake Biological Laboratory University of Maryland Center for Environmental Science-
Descrição: dc.descriptionInstituto de Biociências Universidade Estadual Paulista (Unesp), São Paulo-
Descrição: dc.descriptionEscola de Artes Ciências e Humanidades Universidade de São Paulo, SP-
Descrição: dc.descriptionInstituto de Biociências Universidade Estadual Paulista (Unesp), São Paulo-
Descrição: dc.descriptionFAPESP: 15/18790-3-
Descrição: dc.descriptionFAPESP: 17/02455-6-
Descrição: dc.descriptionCNPq: 407502/2018-1-
Idioma: dc.languageen-
Relação: dc.relationScience of the Total Environment-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAquatic ecosystem-
Palavras-chave: dc.subjectCarbon-
Palavras-chave: dc.subjectCerrado-
Palavras-chave: dc.subjectNitrogen-
Palavras-chave: dc.subjectSugarcane-
Palavras-chave: dc.subjectTropical savannas-
Título: dc.titleMethane concentrations and fluxes in agricultural and preserved tropical headwater streams-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.