Spatial variability structure of soil CO2 emission and soil attributes in a sugarcane area
dc.contributor.author | Bicalho, E. S. [UNESP] | |
dc.contributor.author | Panosso, A. R. [UNESP] | |
dc.contributor.author | Teixeira, D. D. B. [UNESP] | |
dc.contributor.author | Miranda, J. G. V. | |
dc.contributor.author | Pereira, G. T. [UNESP] | |
dc.contributor.author | La Scala, N. [UNESP] | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.contributor.institution | Universidade Federal da Bahia (UFBA) | |
dc.date.accessioned | 2014-12-03T13:10:35Z | |
dc.date.available | 2014-12-03T13:10:35Z | |
dc.date.issued | 2014-05-01 | |
dc.description.abstract | Soil 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.affiliation | Univ Estadual Paulista, Dept Ciencias Exatas, FCAV UNESP, BR-14884900 Jaboticabal, SP, Brazil | |
dc.description.affiliation | Univ Estadual Paulista, Dept Matemat, FEIS UNESP, BR-15385000 Ilha Solteira, SP, Brazil | |
dc.description.affiliation | Univ Fed Bahia, UFBA, Inst Fis, BR-40210340 Salvador, BA, Brazil | |
dc.description.affiliationUnesp | Univ Estadual Paulista, Dept Ciencias Exatas, FCAV UNESP, BR-14884900 Jaboticabal, SP, Brazil | |
dc.description.affiliationUnesp | Univ Estadual Paulista, Dept Matemat, FEIS UNESP, BR-15385000 Ilha Solteira, SP, Brazil | |
dc.format.extent | 206-215 | |
dc.identifier | http://dx.doi.org/10.1016/j.agee.2014.03.043 | |
dc.identifier.citation | Agriculture Ecosystems & Environment. Amsterdam: Elsevier Science Bv, v. 189, p. 206-215, 2014. | |
dc.identifier.doi | 10.1016/j.agee.2014.03.043 | |
dc.identifier.issn | 0167-8809 | |
dc.identifier.lattes | 7053426037771460 | |
dc.identifier.lattes | 1449605928537533 | |
dc.identifier.uri | http://hdl.handle.net/11449/112280 | |
dc.identifier.wos | WOS:000336821200024 | |
dc.language.iso | eng | |
dc.publisher | Elsevier B.V. | |
dc.relation.ispartof | Agriculture Ecosystems & Environment | |
dc.relation.ispartofjcr | 3.541 | |
dc.relation.ispartofsjr | 1,747 | |
dc.rights.accessRights | Acesso restrito | |
dc.source | Web of Science | |
dc.subject | Soil respiration | en |
dc.subject | Geostatistics | en |
dc.subject | Fractal dimension | en |
dc.subject | Mechanized harvest | en |
dc.title | Spatial variability structure of soil CO2 emission and soil attributes in a sugarcane area | en |
dc.type | Artigo | |
dcterms.license | http://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy | |
dcterms.rightsHolder | Elsevier B.V. | |
dspace.entity.type | Publication | |
unesp.author.lattes | 7053426037771460 | |
unesp.author.lattes | 1449605928537533 | |
unesp.author.lattes | 2134397589741043[2] | |
unesp.author.orcid | 0000-0001-9916-1696[2] | |
unesp.campus | Universidade Estadual Paulista (UNESP), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabal | pt |
unesp.campus | Universidade Estadual Paulista (UNESP), Faculdade de Engenharia, Ilha Solteira | pt |
unesp.department | Ciências Exatas - FCAV | pt |
unesp.department | Matemática - FEIS | pt |