Pinus afforestation in South Brazilian highlands: soil chemical attributes and organic matter composition
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000200007 |
Resumo: | In the last three decades, exotic tree species are being introduced in the natural pastures of the highlands located at the northeastern part of Rio Grande do Sul State (RS), Brazil. This alteration of land use may impart drastic changes in the soil attributes. In this context, this work aimed to evaluate the impact of Pinus taeda afforestation on soil chemical attributes and organic matter (SOM) composition in Leptosols from Campos de Cima da Serra, RS. Soil samples under eight year old (Pi8) and 30 year old (Pi30) Pinus plantations and under native pasture (NP) were studied. Contents of exchangeable cations and of micronutrients and soil pH were determined. The SOM composition was investigated by means of elemental analyses and FTIR spectroscopy. The soil under pasture had a higher content of nutrients and of SOM in comparison to Pinus soils, reflecting the higher input and decomposition rate of the below ground added residue in the grassland environment. The SOM in pasture soils showed a higher content of carbohydrate and of structures derived from microbial metabolism. Besides the depletion of nutrients and of SOM, Pinus afforestation affected the SOM quality: following afforestation, the proportion of chemically recalcitrant structures and of carboxylic groups increased, whereas N-containing groups decreased. |
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Scientia Agrícola (Online) |
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Pinus afforestation in South Brazilian highlands: soil chemical attributes and organic matter compositionFTIR spectroscopyhumificationexchangeable cationpasturesrecalcitranceIn the last three decades, exotic tree species are being introduced in the natural pastures of the highlands located at the northeastern part of Rio Grande do Sul State (RS), Brazil. This alteration of land use may impart drastic changes in the soil attributes. In this context, this work aimed to evaluate the impact of Pinus taeda afforestation on soil chemical attributes and organic matter (SOM) composition in Leptosols from Campos de Cima da Serra, RS. Soil samples under eight year old (Pi8) and 30 year old (Pi30) Pinus plantations and under native pasture (NP) were studied. Contents of exchangeable cations and of micronutrients and soil pH were determined. The SOM composition was investigated by means of elemental analyses and FTIR spectroscopy. The soil under pasture had a higher content of nutrients and of SOM in comparison to Pinus soils, reflecting the higher input and decomposition rate of the below ground added residue in the grassland environment. The SOM in pasture soils showed a higher content of carbohydrate and of structures derived from microbial metabolism. Besides the depletion of nutrients and of SOM, Pinus afforestation affected the SOM quality: following afforestation, the proportion of chemically recalcitrant structures and of carboxylic groups increased, whereas N-containing groups decreased.Escola Superior de Agricultura "Luiz de Queiroz"2011-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000200007Scientia Agricola v.68 n.2 2011reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162011000200007info:eu-repo/semantics/openAccessDick,Deborah PinheiroLeite,Simone BenvenutiDalmolin,Ricardo Simão DinizAlmeida,Henrique CesarKnicker,Heikeeng2011-03-31T00:00:00Zoai:scielo:S0103-90162011000200007Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2011-03-31T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Pinus afforestation in South Brazilian highlands: soil chemical attributes and organic matter composition |
title |
Pinus afforestation in South Brazilian highlands: soil chemical attributes and organic matter composition |
spellingShingle |
Pinus afforestation in South Brazilian highlands: soil chemical attributes and organic matter composition Dick,Deborah Pinheiro FTIR spectroscopy humification exchangeable cation pastures recalcitrance |
title_short |
Pinus afforestation in South Brazilian highlands: soil chemical attributes and organic matter composition |
title_full |
Pinus afforestation in South Brazilian highlands: soil chemical attributes and organic matter composition |
title_fullStr |
Pinus afforestation in South Brazilian highlands: soil chemical attributes and organic matter composition |
title_full_unstemmed |
Pinus afforestation in South Brazilian highlands: soil chemical attributes and organic matter composition |
title_sort |
Pinus afforestation in South Brazilian highlands: soil chemical attributes and organic matter composition |
author |
Dick,Deborah Pinheiro |
author_facet |
Dick,Deborah Pinheiro Leite,Simone Benvenuti Dalmolin,Ricardo Simão Diniz Almeida,Henrique Cesar Knicker,Heike |
author_role |
author |
author2 |
Leite,Simone Benvenuti Dalmolin,Ricardo Simão Diniz Almeida,Henrique Cesar Knicker,Heike |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Dick,Deborah Pinheiro Leite,Simone Benvenuti Dalmolin,Ricardo Simão Diniz Almeida,Henrique Cesar Knicker,Heike |
dc.subject.por.fl_str_mv |
FTIR spectroscopy humification exchangeable cation pastures recalcitrance |
topic |
FTIR spectroscopy humification exchangeable cation pastures recalcitrance |
description |
In the last three decades, exotic tree species are being introduced in the natural pastures of the highlands located at the northeastern part of Rio Grande do Sul State (RS), Brazil. This alteration of land use may impart drastic changes in the soil attributes. In this context, this work aimed to evaluate the impact of Pinus taeda afforestation on soil chemical attributes and organic matter (SOM) composition in Leptosols from Campos de Cima da Serra, RS. Soil samples under eight year old (Pi8) and 30 year old (Pi30) Pinus plantations and under native pasture (NP) were studied. Contents of exchangeable cations and of micronutrients and soil pH were determined. The SOM composition was investigated by means of elemental analyses and FTIR spectroscopy. The soil under pasture had a higher content of nutrients and of SOM in comparison to Pinus soils, reflecting the higher input and decomposition rate of the below ground added residue in the grassland environment. The SOM in pasture soils showed a higher content of carbohydrate and of structures derived from microbial metabolism. Besides the depletion of nutrients and of SOM, Pinus afforestation affected the SOM quality: following afforestation, the proportion of chemically recalcitrant structures and of carboxylic groups increased, whereas N-containing groups decreased. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-04-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000200007 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000200007 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-90162011000200007 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
dc.source.none.fl_str_mv |
Scientia Agricola v.68 n.2 2011 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1748936462399700992 |