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Spatial variability structure of soil CO2 emission and soil attributes in a sugarcane area

dc.contributor.authorBicalho, E. S. [UNESP]
dc.contributor.authorPanosso, A. R. [UNESP]
dc.contributor.authorTeixeira, D. D. B. [UNESP]
dc.contributor.authorMiranda, J. G. V.
dc.contributor.authorPereira, G. T. [UNESP]
dc.contributor.authorLa Scala, N. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal da Bahia (UFBA)
dc.date.accessioned2014-12-03T13:10:35Z
dc.date.available2014-12-03T13:10:35Z
dc.date.issued2014-05-01
dc.description.abstractSoil CO2 emission (F-CO2) is influenced by chemical, physical and biological factors that affect the production of CO2 in the soil and its transport to the atmosphere. F-CO2 varies in time and space depending on environmental conditions, including the management of the agricultural area. The aim of this study was to investigate the spatial variability structure of F-CO2 and soil attributes in a mechanically harvested sugarcane area (green harvest) using fractal dimension (D-F) derived from isotropic variograms at different scales (fractograms). F-CO2 showed an overall average of 1.51 mu mol CO2 m(-2) s(-1) and correlated significantly (P < 0.05) with soil physical attributes, such as soil bulk density, air-filled pore space, macroporosity and microporosity. Topologically significant DF values were obtained from the characterization of F-CO2 at medium and large scales (above 20 m), with values of 2.92 and 2.90, respectively. The variations in D-F with scales indicate that the spatial variability structure of F-CO2 was similar to that observed for soil temperature and total pore volume and was the inverse of that observed for other soil attributes, such as soil moisture, soil bulk density, microporosity, air-filled pore space, silt and clay content, pH, available phosphorus and the sum of bases. Thus, the spatial variability structure of F-CO2 presented a significant relationship with the spatial variability structure for most soil attributes, indicating the possibility of using fractograms as a tool to better describe the spatial dependence of variables along the scale. (C) 2014 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Estadual Paulista, Dept Ciencias Exatas, FCAV UNESP, BR-14884900 Jaboticabal, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Matemat, FEIS UNESP, BR-15385000 Ilha Solteira, SP, Brazil
dc.description.affiliationUniv Fed Bahia, UFBA, Inst Fis, BR-40210340 Salvador, BA, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Ciencias Exatas, FCAV UNESP, BR-14884900 Jaboticabal, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Matemat, FEIS UNESP, BR-15385000 Ilha Solteira, SP, Brazil
dc.format.extent206-215
dc.identifierhttp://dx.doi.org/10.1016/j.agee.2014.03.043
dc.identifier.citationAgriculture Ecosystems & Environment. Amsterdam: Elsevier Science Bv, v. 189, p. 206-215, 2014.
dc.identifier.doi10.1016/j.agee.2014.03.043
dc.identifier.issn0167-8809
dc.identifier.lattes7053426037771460
dc.identifier.lattes1449605928537533
dc.identifier.urihttp://hdl.handle.net/11449/112280
dc.identifier.wosWOS:000336821200024
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofAgriculture Ecosystems & Environment
dc.relation.ispartofjcr3.541
dc.relation.ispartofsjr1,747
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectSoil respirationen
dc.subjectGeostatisticsen
dc.subjectFractal dimensionen
dc.subjectMechanized harvesten
dc.titleSpatial variability structure of soil CO2 emission and soil attributes in a sugarcane areaen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dspace.entity.typePublication
unesp.author.lattes7053426037771460
unesp.author.lattes1449605928537533
unesp.author.lattes2134397589741043[2]
unesp.author.orcid0000-0001-9916-1696[2]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Engenharia, Ilha Solteirapt
unesp.departmentCiências Exatas - FCAVpt
unesp.departmentMatemática - FEISpt

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