Fractal dimension and anisotropy of soil CO2 emission in a mechanically harvested sugarcane production area

Detalhes bibliográficos
Autor(a) principal: Miranda, Garcia Vivas
Data de Publicação: 2012
Outros Autores: Panosso, Alan Rodrigo, Perillo, Luciano Ito, Ferraudo, Antônio Sérgio, Pereira, Gener Tadeu, Miranda, José Garcia Vivas, Scala Junior, Newton La
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/16062
Resumo: Texto completo: acesso restrito. p. 8–16
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spelling Miranda, Garcia VivasPanosso, Alan RodrigoPerillo, Luciano ItoFerraudo, Antônio SérgioPereira, Gener TadeuMiranda, José Garcia VivasScala Junior, Newton LaMiranda, Garcia VivasPanosso, Alan RodrigoPerillo, Luciano ItoFerraudo, Antônio SérgioPereira, Gener TadeuMiranda, José Garcia VivasScala Junior, Newton La2014-09-11T17:52:37Z20120167-1987http://repositorio.ufba.br/ri/handle/ri/16062v. 124Texto completo: acesso restrito. p. 8–16Soil CO2 emissions (FCO2) are spatially dependent, and their spatial structure varies in different directions along the soil surface (anisotropy). This anisotropy, which can result from several pedological factors that are directly related to soil carbon dynamics, is affected by soil management. In this study, the anisotropies of the spatial variability of soil CO2 emissions and of other soil properties were determined for a sugarcane production area under mechanical harvest, when crop residues are left on soil surface, located in the northeastern part of the state of São Paulo, Brazil. The anisotropic characterization of variables was performed by deriving the fractal dimension (DF) from experimental semivariograms calculated at angles of 0°, 45°, 90° and 135° from the between crop line direction (0°). The mean FCO2 was 2.19 μmol m−2 s−1, and values were significantly lower in the 0° direction. A principal component analysis was applied to study soil properties and the first principal component was mainly related to soil physical properties and FCO2. A multiple regression analysis indicated that air-filled pore space (AFPS) was the main factor affecting the spatial variability of FCO2 in all directions. The AFPS DF values were significantly lower in the direction in which sugarcane crops were planted, indicating anisotropy of this property and greater homogeneity in this direction. Even after rainfall, there was no change in the structure of spatial variability as expressed by the values of DF. The results indicate that in sugarcane areas, several factors inherent to soil forming processes and management practices during harvest and seeding were responsible for the observed anisotropy, which affected soil CO2 emissions.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-07-29T15:38:09Z No. of bitstreams: 1 Garcia Vivas Miranda.pdf: 512514 bytes, checksum: 29bb0918b72f7da17aefe1c22de0903e (MD5)Approved for entry into archive by Alda Lima da Silva (sivalda@ufba.br) on 2014-09-11T17:52:37Z (GMT) No. of bitstreams: 1 Garcia Vivas Miranda.pdf: 512514 bytes, checksum: 29bb0918b72f7da17aefe1c22de0903e (MD5)Made available in DSpace on 2014-09-11T17:52:37Z (GMT). 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dc.title.pt_BR.fl_str_mv Fractal dimension and anisotropy of soil CO2 emission in a mechanically harvested sugarcane production area
dc.title.alternative.pt_BR.fl_str_mv Soil and Tillage Research
title Fractal dimension and anisotropy of soil CO2 emission in a mechanically harvested sugarcane production area
spellingShingle Fractal dimension and anisotropy of soil CO2 emission in a mechanically harvested sugarcane production area
Miranda, Garcia Vivas
Soil respiration
Geostatistic
Autocorrelation
Semivariogram
Heterogeneity
title_short Fractal dimension and anisotropy of soil CO2 emission in a mechanically harvested sugarcane production area
title_full Fractal dimension and anisotropy of soil CO2 emission in a mechanically harvested sugarcane production area
title_fullStr Fractal dimension and anisotropy of soil CO2 emission in a mechanically harvested sugarcane production area
title_full_unstemmed Fractal dimension and anisotropy of soil CO2 emission in a mechanically harvested sugarcane production area
title_sort Fractal dimension and anisotropy of soil CO2 emission in a mechanically harvested sugarcane production area
author Miranda, Garcia Vivas
author_facet Miranda, Garcia Vivas
Panosso, Alan Rodrigo
Perillo, Luciano Ito
Ferraudo, Antônio Sérgio
Pereira, Gener Tadeu
Miranda, José Garcia Vivas
Scala Junior, Newton La
author_role author
author2 Panosso, Alan Rodrigo
Perillo, Luciano Ito
Ferraudo, Antônio Sérgio
Pereira, Gener Tadeu
Miranda, José Garcia Vivas
Scala Junior, Newton La
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Miranda, Garcia Vivas
Panosso, Alan Rodrigo
Perillo, Luciano Ito
Ferraudo, Antônio Sérgio
Pereira, Gener Tadeu
Miranda, José Garcia Vivas
Scala Junior, Newton La
Miranda, Garcia Vivas
Panosso, Alan Rodrigo
Perillo, Luciano Ito
Ferraudo, Antônio Sérgio
Pereira, Gener Tadeu
Miranda, José Garcia Vivas
Scala Junior, Newton La
dc.subject.por.fl_str_mv Soil respiration
Geostatistic
Autocorrelation
Semivariogram
Heterogeneity
topic Soil respiration
Geostatistic
Autocorrelation
Semivariogram
Heterogeneity
description Texto completo: acesso restrito. p. 8–16
publishDate 2012
dc.date.issued.fl_str_mv 2012
dc.date.accessioned.fl_str_mv 2014-09-11T17:52:37Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufba.br/ri/handle/ri/16062
dc.identifier.issn.none.fl_str_mv 0167-1987
dc.identifier.number.pt_BR.fl_str_mv v. 124
identifier_str_mv 0167-1987
v. 124
url http://repositorio.ufba.br/ri/handle/ri/16062
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.pt_BR.fl_str_mv http://dx.doi.org/ 10.1016/j.still.2012.04.005
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
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instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
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reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
bitstream.url.fl_str_mv https://repositorio.ufba.br/bitstream/ri/16062/1/Garcia%20Vivas%20Miranda.pdf
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