Short-term spatiotemporal variation of soil CO2 emission, temperature, moisture and aeration in sugarcane field reform areas under the influence of precipitation events

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorBrazilian Center for Research in Energy and Materials (CNPEM)-
Autor(es): dc.contributorUniversity of Marília (UNIMAR)-
Autor(es): dc.creatorSilva, Elienai Ferreira da [UNESP]-
Autor(es): dc.creatorMoitinho, Mara Regina-
Autor(es): dc.creatorTeixeira, Daniel De Bortoli-
Autor(es): dc.creatorBicalho, Elton da Silva [UNESP]-
Autor(es): dc.creatorCastioni, Guilherme Adalberto Ferreira-
Autor(es): dc.creatorPereira, Gener Tadeu [UNESP]-
Autor(es): dc.creatorLa Scala, Newton [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:52:12Z-
Data de disponibilização: dc.date.available2022-02-22T00:52:12Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1111/sum.12633-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/208025-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/208025-
Descrição: dc.descriptionSoil CO2 emission (FCO2) in agricultural areas results from the interaction of different factors such as climate and soil conditions. Our objective was to investigate the spatiotemporal variation of FCO2, temperature (Tsoil), moisture (Msoil) and air-filled pore space (AFPS), as well as their interactions, during the sugarcane field reform. The study was conducted on a 90 × 90 m sampling grid with 100 points at 10 m spacings. Ten assessments of FCO2, Tsoil and Msoil were carried out at each point over a 28-day period. The greatest mean values of FCO2 (0.74 g m−2 hr−1) and Msoil (31.7%) were obtained on Julian day 276, 2013, being associated with precipitation events at the study site. Also, the smallest values of AFPS (19.17%) and Tsoil (20.90°C) were observed on the same day. The spatial variability of FCO2, Tsoil, Msoil and AFPS was best described by an adjusted spherical model, although an exponential model better fitted some results. The spatial pattern of all soil attributes showed little temporal persistency, indicating a high complexity for FCO2 during precipitation. Correlation maps assisted in identifying regions where Msoil and AFPS better controlled the emission process and where Tsoil was important. A major challenge for world agriculture is to increase the efficiency of conventional soil management practices. We highlight the importance of the spatial pattern of soil properties that directly influence the CO2 emission dynamics. Future mitigation actions should involve less intense tillage and ensure homogeneous applications of soil inputs, thereby reducing production costs and the contribution of these activities to CO2 emissions during the sugarcane field reform.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionSchool of Agricultural and Veterinary Studies São Paulo State University (FCAV–UNESP)-
Descrição: dc.descriptionBrazilian Biorenewables National Laboratory (LNBR) Brazilian Center for Research in Energy and Materials (CNPEM)-
Descrição: dc.descriptionUniversity of Marília (UNIMAR)-
Descrição: dc.descriptionSchool of Agricultural and Veterinary Studies São Paulo State University (FCAV–UNESP)-
Descrição: dc.descriptionFAPESP: 2014/03634-3-
Formato: dc.format658-670-
Idioma: dc.languageen-
Relação: dc.relationSoil Use and Management-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectgeostatistics-
Palavras-chave: dc.subjectsoil moisture-
Palavras-chave: dc.subjectsoil respiration-
Palavras-chave: dc.subjectsoil temperature-
Palavras-chave: dc.subjectsoil tillage-
Título: dc.titleShort-term spatiotemporal variation of soil CO2 emission, temperature, moisture and aeration in sugarcane field reform areas under the influence of precipitation events-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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