Fractal dimension and anisotropy of soil CO2 emission in an agricultural field during fallow
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/219559 |
Resumo: | The study of soil CO2 emission is a relevant task due to the fact that it is related to many environmental issues, especially the enhanced greenhouse effect. In this work we investigated the spatial variability structure of a bare soil CO2 emission in an area of 80 × 80 m, during twelve different days. Spatial and temporal variability analyses in the 65-point grid indicate that significant spatial heterogeneity is present in most of the days. Fractal dimension values varying from 2 to 2.88 was determined in a direction of 84.3±22.5°, which is close to perpendicular of crop lines. This effect seems to be related to the structure of temporal variability of soil CO2 emission, which presents a complex net of correlation with 83% of grid points connected within the same cluster, also with most of the points aligned perpendicular to crop lines. © 2009 Institute of Agrophysics, Polish Academy of Sciences. |
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Repositório Institucional da UNESP |
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Fractal dimension and anisotropy of soil CO2 emission in an agricultural field during fallowGreenhouse gasSoil CO2 fluxSoil respirationSpatial variabilityThe study of soil CO2 emission is a relevant task due to the fact that it is related to many environmental issues, especially the enhanced greenhouse effect. In this work we investigated the spatial variability structure of a bare soil CO2 emission in an area of 80 × 80 m, during twelve different days. Spatial and temporal variability analyses in the 65-point grid indicate that significant spatial heterogeneity is present in most of the days. Fractal dimension values varying from 2 to 2.88 was determined in a direction of 84.3±22.5°, which is close to perpendicular of crop lines. This effect seems to be related to the structure of temporal variability of soil CO2 emission, which presents a complex net of correlation with 83% of grid points connected within the same cluster, also with most of the points aligned perpendicular to crop lines. © 2009 Institute of Agrophysics, Polish Academy of Sciences.Agrarian and Veterinarian Faculty Säo Paulo State University (FCAV/UNESP), Via de Acesso Prof. Paulo Donato Castellane s/n. 14883-292, Jaboticabal, SPScience Faculty Coruńa University, Zapatteira, 15.071 CoruńaPhysics Faculty Federal University of Bahia, Salvador, BAAgrarian and Veterinarian Faculty Säo Paulo State University (FCAV/UNESP), Via de Acesso Prof. Paulo Donato Castellane s/n. 14883-292, Jaboticabal, SPUniversidade Estadual Paulista (UNESP)Coruńa UniversityUniversidade Federal da Bahia (UFBA)La Scala, N. [UNESP]Panosso, A. R. [UNESP]Pereira, G. T. [UNESP]Gonzalez, A. P.Miranda, J. G.V.2022-04-28T18:56:14Z2022-04-28T18:56:14Z2009-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article353-358International Agrophysics, v. 23, n. 4, p. 353-358, 2009.0236-8722http://hdl.handle.net/11449/2195592-s2.0-77952181405Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInternational Agrophysicsinfo:eu-repo/semantics/openAccess2022-04-28T18:56:14Zoai:repositorio.unesp.br:11449/219559Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T18:56:14Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Fractal dimension and anisotropy of soil CO2 emission in an agricultural field during fallow |
title |
Fractal dimension and anisotropy of soil CO2 emission in an agricultural field during fallow |
spellingShingle |
Fractal dimension and anisotropy of soil CO2 emission in an agricultural field during fallow La Scala, N. [UNESP] Greenhouse gas Soil CO2 flux Soil respiration Spatial variability |
title_short |
Fractal dimension and anisotropy of soil CO2 emission in an agricultural field during fallow |
title_full |
Fractal dimension and anisotropy of soil CO2 emission in an agricultural field during fallow |
title_fullStr |
Fractal dimension and anisotropy of soil CO2 emission in an agricultural field during fallow |
title_full_unstemmed |
Fractal dimension and anisotropy of soil CO2 emission in an agricultural field during fallow |
title_sort |
Fractal dimension and anisotropy of soil CO2 emission in an agricultural field during fallow |
author |
La Scala, N. [UNESP] |
author_facet |
La Scala, N. [UNESP] Panosso, A. R. [UNESP] Pereira, G. T. [UNESP] Gonzalez, A. P. Miranda, J. G.V. |
author_role |
author |
author2 |
Panosso, A. R. [UNESP] Pereira, G. T. [UNESP] Gonzalez, A. P. Miranda, J. G.V. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Coruńa University Universidade Federal da Bahia (UFBA) |
dc.contributor.author.fl_str_mv |
La Scala, N. [UNESP] Panosso, A. R. [UNESP] Pereira, G. T. [UNESP] Gonzalez, A. P. Miranda, J. G.V. |
dc.subject.por.fl_str_mv |
Greenhouse gas Soil CO2 flux Soil respiration Spatial variability |
topic |
Greenhouse gas Soil CO2 flux Soil respiration Spatial variability |
description |
The study of soil CO2 emission is a relevant task due to the fact that it is related to many environmental issues, especially the enhanced greenhouse effect. In this work we investigated the spatial variability structure of a bare soil CO2 emission in an area of 80 × 80 m, during twelve different days. Spatial and temporal variability analyses in the 65-point grid indicate that significant spatial heterogeneity is present in most of the days. Fractal dimension values varying from 2 to 2.88 was determined in a direction of 84.3±22.5°, which is close to perpendicular of crop lines. This effect seems to be related to the structure of temporal variability of soil CO2 emission, which presents a complex net of correlation with 83% of grid points connected within the same cluster, also with most of the points aligned perpendicular to crop lines. © 2009 Institute of Agrophysics, Polish Academy of Sciences. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-12-01 2022-04-28T18:56:14Z 2022-04-28T18:56:14Z |
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 |
International Agrophysics, v. 23, n. 4, p. 353-358, 2009. 0236-8722 http://hdl.handle.net/11449/219559 2-s2.0-77952181405 |
identifier_str_mv |
International Agrophysics, v. 23, n. 4, p. 353-358, 2009. 0236-8722 2-s2.0-77952181405 |
url |
http://hdl.handle.net/11449/219559 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
International Agrophysics |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
353-358 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803046303208308736 |