Fire promotes functional plant diversity and modifies soil carbon dynamics in tropical savanna

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorthe University of Oklahoma-
Autor(es): dc.contributorTechnical University of Munich-
Autor(es): dc.creatorTeixeira, Juliana-
Autor(es): dc.creatorSouza, Lara-
Autor(es): dc.creatorLe Stradic, Soizig-
Autor(es): dc.creatorFidelis, Alessandra-
Data de aceite: dc.date.accessioned2025-08-21T22:44:59Z-
Data de disponibilização: dc.date.available2025-08-21T22:44:59Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-03-15-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.scitotenv.2021.152317-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/223110-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/223110-
Descrição: dc.descriptionFire is an evolutionary environmental filter in tropical savanna ecosystems altering functional diversity and associated C pools in the biosphere and fluxes between the atmosphere and biosphere. Therefore, alterations in fire regimes (e.g. fire exclusion) will strongly influence ecosystem processes and associated dynamics. In those ecosystems C dynamics and functions are underestimated by the fire-induced offset between C output and input. To determine how fire shapes ecosystem C pools and fluxes in an open savanna across recently burned and fire excluded areas, we measured the following metrics: (I) plant diversity including taxonomic (i.e. richness, evenness) and plant functional diversity (i.e. functional diversity, functional richness, functional dispersion and community weighted means); (II) structure (i.e. above- and below-ground biomass, litter accumulation); and (III) functions related to C balance (i.e. net ecosystem carbon dioxide (CO2) exchange (NEE), ecosystem transpiration (ET), soil respiration (soil CO2 efflux), ecosystem water use efficiency (eWUE) and total soil organic C (SOC). We found that fire promoted aboveground live and belowground biomass, including belowground organs, coarse and fine root biomass and contributed to higher biomass allocation belowground. Fire also increased both functional diversity and dispersion. NEE and total SOC were higher in burned plots compared to fire-excluded plots whereas soil respiration recorded lower values in burned areas. Both ET and eWUE were not affected by fire. Fire strongly favored functional diversity, fine root and belowground organ biomass in piecewise SEM models but the role of both functional diversity and ecosystem structure to mediate the effect of fire on ecosystem functions remain unclear. Fire regime will impact C balance, and fire exclusion may lead to lower C input in open savanna ecosystems.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionNational Geographic Society-
Descrição: dc.descriptionLaboratory of Vegetation Ecology Department of Biodiversity Bioscience Institute São Paulo State University (Unesp), Av. 24 A 1515-
Descrição: dc.descriptionOklahoma Biological Survey & Department of Microbiology and Plant Biology the University of Oklahoma, 111 E. Chesapeake Street-
Descrição: dc.descriptionChair of Restoration Ecology Department of Life Science Systems Technical University of Munich, Emil-Ramann-Str. 6-
Descrição: dc.descriptionLaboratory of Vegetation Ecology Department of Biodiversity Bioscience Institute São Paulo State University (Unesp), Av. 24 A 1515-
Descrição: dc.descriptionCNPq: CNPq 141715/2018-9-
Descrição: dc.descriptionCNPq: CNPq 303988/2018-5-
Descrição: dc.descriptionFAPESP: FAPESP 2015/06743-0-
Descrição: dc.descriptionNational Geographic Society: NGS 51903C-18-
Idioma: dc.languageen-
Relação: dc.relationScience of the Total Environment-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAbove and belowground interactions-
Palavras-chave: dc.subjectCarbon dynamics-
Palavras-chave: dc.subjectFire-prone ecosystems-
Palavras-chave: dc.subjectFunctional diversity-
Palavras-chave: dc.subjectNeotropical savanna-
Palavras-chave: dc.subjectResilience-
Título: dc.titleFire promotes functional plant diversity and modifies soil carbon dynamics in tropical savanna-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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