Field-scale spatial correlation between contents of iron oxides and CO2 emission in an Oxisol cultivated with sugarcane
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000200157&lng=en&nrm=iso&tlng=en http://hdl.handle.net/11449/129819 |
Resumo: | Soil CO2 emission (FCO2) is one of the main sources of carbon release into the atmosphere. Moreover, FCO2 is related to soil attributes governing the transfer of gases from soil to the atmosphere. This study aimed firstly to describe the spatial variability of hematite (Hm), goethite (Gt), iron extracted with sodium dithionite-citrate-bicarbonate (Fe-d) contents, soil CO2 emission (FCO2) and free-water porosity (FWP) and secondly, to develop statistical models to predict the above mentioned factors in an Oxisol cultivated under manual harvesting of sugarcane (Saccharum spp.) in southeastern Brazil. The study was conducted on an irregular 50 m x 50 m grid containing 89 points, each 0.5-10 m apart. The 0-0.1 m soil layer at each sampling point was used to assess soil FCO2, moisture and total pore volume. The results were subjected to descriptive statistical and geostatistical analyses using auto-and cross-semivariograms. All soil attributes exhibited a spatial dependence structure and the experimental semivariograms fitted spherical and exponential models. The Gt content was the individual attribute that exhibited the highest linear and spatial correlation, especially with FCO2. We were able to use diffuse reflectance spectroscopy to map large areas, which allows for easy identification and estimation of soil attributes such as FCO2 and FWP. Geostatistical techniques faciltate the interpretation of spatial relationships between soil respiration and the examined properties. |
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Field-scale spatial correlation between contents of iron oxides and CO2 emission in an Oxisol cultivated with sugarcaneHematiteGoethiteSoil respirationGeostatisticsCross-semivariogramsSoil CO2 emission (FCO2) is one of the main sources of carbon release into the atmosphere. Moreover, FCO2 is related to soil attributes governing the transfer of gases from soil to the atmosphere. This study aimed firstly to describe the spatial variability of hematite (Hm), goethite (Gt), iron extracted with sodium dithionite-citrate-bicarbonate (Fe-d) contents, soil CO2 emission (FCO2) and free-water porosity (FWP) and secondly, to develop statistical models to predict the above mentioned factors in an Oxisol cultivated under manual harvesting of sugarcane (Saccharum spp.) in southeastern Brazil. The study was conducted on an irregular 50 m x 50 m grid containing 89 points, each 0.5-10 m apart. The 0-0.1 m soil layer at each sampling point was used to assess soil FCO2, moisture and total pore volume. The results were subjected to descriptive statistical and geostatistical analyses using auto-and cross-semivariograms. All soil attributes exhibited a spatial dependence structure and the experimental semivariograms fitted spherical and exponential models. The Gt content was the individual attribute that exhibited the highest linear and spatial correlation, especially with FCO2. We were able to use diffuse reflectance spectroscopy to map large areas, which allows for easy identification and estimation of soil attributes such as FCO2 and FWP. Geostatistical techniques faciltate the interpretation of spatial relationships between soil respiration and the examined properties.Graduate Program in Plant Production, UNESP/JaboticabalFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Sao Paulo State Univ FCAV, BR-14883292 Jaboticabal, SP, BrazilSao Paulo State Univ FEIS, BR-15385000 Ilha Solteira, SP, BrazilSao Paulo State Univ FCAV, BR-14883292 Jaboticabal, SP, BrazilSao Paulo State Univ FEIS, BR-15385000 Ilha Solteira, SP, BrazilUniv Sao PaoloUniversidade Estadual Paulista (Unesp)Rabelo de Souza Bahia, Angelica Santos [UNESP]Marques Junior, Jose [UNESP]Panosso, Alan Rodrigo [UNESP]Camargo, Livia Arantes [UNESP]Siqueira, Diego Silva [UNESP]Teixeira, Daniel De Bortoli [UNESP]La Scala Junior, Newton [UNESP]2015-10-22T07:14:28Z2015-10-22T07:14:28Z2015-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article157-166application/pdfhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000200157&lng=en&nrm=iso&tlng=enScientia Agricola. Cerquera Cesar: Univ Sao Paolo, v. 72, n. 2, p. 157-166, 2015.0103-9016http://hdl.handle.net/11449/12981910.1590/0103-9016-2014-0142S0103-90162015000200157WOS:000352544600007S0103-90162015000200157.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScientia Agricola0,578info:eu-repo/semantics/openAccess2024-06-07T14:23:13Zoai:repositorio.unesp.br:11449/129819Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:20:48.621239Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Field-scale spatial correlation between contents of iron oxides and CO2 emission in an Oxisol cultivated with sugarcane |
title |
Field-scale spatial correlation between contents of iron oxides and CO2 emission in an Oxisol cultivated with sugarcane |
spellingShingle |
Field-scale spatial correlation between contents of iron oxides and CO2 emission in an Oxisol cultivated with sugarcane Rabelo de Souza Bahia, Angelica Santos [UNESP] Hematite Goethite Soil respiration Geostatistics Cross-semivariograms |
title_short |
Field-scale spatial correlation between contents of iron oxides and CO2 emission in an Oxisol cultivated with sugarcane |
title_full |
Field-scale spatial correlation between contents of iron oxides and CO2 emission in an Oxisol cultivated with sugarcane |
title_fullStr |
Field-scale spatial correlation between contents of iron oxides and CO2 emission in an Oxisol cultivated with sugarcane |
title_full_unstemmed |
Field-scale spatial correlation between contents of iron oxides and CO2 emission in an Oxisol cultivated with sugarcane |
title_sort |
Field-scale spatial correlation between contents of iron oxides and CO2 emission in an Oxisol cultivated with sugarcane |
author |
Rabelo de Souza Bahia, Angelica Santos [UNESP] |
author_facet |
Rabelo de Souza Bahia, Angelica Santos [UNESP] Marques Junior, Jose [UNESP] Panosso, Alan Rodrigo [UNESP] Camargo, Livia Arantes [UNESP] Siqueira, Diego Silva [UNESP] Teixeira, Daniel De Bortoli [UNESP] La Scala Junior, Newton [UNESP] |
author_role |
author |
author2 |
Marques Junior, Jose [UNESP] Panosso, Alan Rodrigo [UNESP] Camargo, Livia Arantes [UNESP] Siqueira, Diego Silva [UNESP] Teixeira, Daniel De Bortoli [UNESP] La Scala Junior, Newton [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Rabelo de Souza Bahia, Angelica Santos [UNESP] Marques Junior, Jose [UNESP] Panosso, Alan Rodrigo [UNESP] Camargo, Livia Arantes [UNESP] Siqueira, Diego Silva [UNESP] Teixeira, Daniel De Bortoli [UNESP] La Scala Junior, Newton [UNESP] |
dc.subject.por.fl_str_mv |
Hematite Goethite Soil respiration Geostatistics Cross-semivariograms |
topic |
Hematite Goethite Soil respiration Geostatistics Cross-semivariograms |
description |
Soil CO2 emission (FCO2) is one of the main sources of carbon release into the atmosphere. Moreover, FCO2 is related to soil attributes governing the transfer of gases from soil to the atmosphere. This study aimed firstly to describe the spatial variability of hematite (Hm), goethite (Gt), iron extracted with sodium dithionite-citrate-bicarbonate (Fe-d) contents, soil CO2 emission (FCO2) and free-water porosity (FWP) and secondly, to develop statistical models to predict the above mentioned factors in an Oxisol cultivated under manual harvesting of sugarcane (Saccharum spp.) in southeastern Brazil. The study was conducted on an irregular 50 m x 50 m grid containing 89 points, each 0.5-10 m apart. The 0-0.1 m soil layer at each sampling point was used to assess soil FCO2, moisture and total pore volume. The results were subjected to descriptive statistical and geostatistical analyses using auto-and cross-semivariograms. All soil attributes exhibited a spatial dependence structure and the experimental semivariograms fitted spherical and exponential models. The Gt content was the individual attribute that exhibited the highest linear and spatial correlation, especially with FCO2. We were able to use diffuse reflectance spectroscopy to map large areas, which allows for easy identification and estimation of soil attributes such as FCO2 and FWP. Geostatistical techniques faciltate the interpretation of spatial relationships between soil respiration and the examined properties. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-22T07:14:28Z 2015-10-22T07:14:28Z 2015-03-01 |
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://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000200157&lng=en&nrm=iso&tlng=en Scientia Agricola. Cerquera Cesar: Univ Sao Paolo, v. 72, n. 2, p. 157-166, 2015. 0103-9016 http://hdl.handle.net/11449/129819 10.1590/0103-9016-2014-0142 S0103-90162015000200157 WOS:000352544600007 S0103-90162015000200157.pdf |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000200157&lng=en&nrm=iso&tlng=en http://hdl.handle.net/11449/129819 |
identifier_str_mv |
Scientia Agricola. Cerquera Cesar: Univ Sao Paolo, v. 72, n. 2, p. 157-166, 2015. 0103-9016 10.1590/0103-9016-2014-0142 S0103-90162015000200157 WOS:000352544600007 S0103-90162015000200157.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Scientia Agricola 0,578 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
157-166 application/pdf |
dc.publisher.none.fl_str_mv |
Univ Sao Paolo |
publisher.none.fl_str_mv |
Univ Sao Paolo |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1808128499544752128 |