Soil organic matter in fire-affected pastures and in an Araucaria forest in South-Brazilian Leptosols

The objective of this work was to evaluate the distribution pattern and composition of soil organic matter (SOM) and its physical pools of Leptosols periodically affected by fire over the last 100 years in South Brazil. Soil samples at 0-5, 5-10, and 10-15 cm depths were collected from the following...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Mariana da Luz Potes [verfasserIn] Deborah Pinheiro Dick [verfasserIn] Graciele Sarante Santana [verfasserIn] Michely Tomazi [verfasserIn] Cimélio Bayer [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch ; Spanisch ; Portugiesisch

Erschienen:	2012

Schlagwörter:	frações físicas estoque de carbono composição química recalcitrância química termo-decomposição

Übergeordnetes Werk:	In: Pesquisa Agropecuária Brasileira - Embrapa Informação Tecnológica, 2004, 47(2012), 5, Seite 707-715
Übergeordnetes Werk:	volume:47 ; year:2012 ; number:5 ; pages:707-715

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1590/S0100-204X2012000500011

Katalog-ID:	DOAJ037073958

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allfields	10.1590/S0100-204X2012000500011 doi (DE-627)DOAJ037073958 (DE-599)DOAJ0a204b2f3332413a88e0fd339364be56 DE-627 ger DE-627 rakwb eng spa por S1-972 Mariana da Luz Potes verfasserin aut Soil organic matter in fire-affected pastures and in an Araucaria forest in South-Brazilian Leptosols 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The objective of this work was to evaluate the distribution pattern and composition of soil organic matter (SOM) and its physical pools of Leptosols periodically affected by fire over the last 100 years in South Brazil. Soil samples at 0-5, 5-10, and 10-15 cm depths were collected from the following environments: native pasture without burning in the last year and grazed with 0.5 livestock per hectare per year (1NB); native pasture without burning in the last 23 years and grazed with 2.0 livestock per hectare per year (23NB); and an Araucaria forest (AF). Physical fractionation was performed with the 0-5 and 5-10 cm soil layers. Soil C and N stocks were determined in the three depths and in the physical pools, and organic matter was characterized by infrared spectroscopy and thermogravimetry. The largest C stocks in all depths and physical pools were found under the AF. The 23NB environment showed the lowest soil C and N stocks at the 5-15 cm depth, which was related to the end of burning and to the higher grazing intensity. The SOM of the occluded light fraction showed a greater chemical recalcitrance in 1NB than in 23NB. Annual pasture burning does not affect soil C stocks up to 15 cm of depth. frações físicas estoque de carbono composição química recalcitrância química termo-decomposição Agriculture (General) Deborah Pinheiro Dick verfasserin aut Graciele Sarante Santana verfasserin aut Michely Tomazi verfasserin aut Cimélio Bayer verfasserin aut In Pesquisa Agropecuária Brasileira Embrapa Informação Tecnológica, 2004 47(2012), 5, Seite 707-715 (DE-627)331758326 (DE-600)2053197-7 16783921 nnns volume:47 year:2012 number:5 pages:707-715 https://doi.org/10.1590/S0100-204X2012000500011 kostenfrei https://doaj.org/article/0a204b2f3332413a88e0fd339364be56 kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000500011&lng=en&tlng=en kostenfrei https://doaj.org/toc/1678-3921 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 47 2012 5 707-715
spelling	10.1590/S0100-204X2012000500011 doi (DE-627)DOAJ037073958 (DE-599)DOAJ0a204b2f3332413a88e0fd339364be56 DE-627 ger DE-627 rakwb eng spa por S1-972 Mariana da Luz Potes verfasserin aut Soil organic matter in fire-affected pastures and in an Araucaria forest in South-Brazilian Leptosols 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The objective of this work was to evaluate the distribution pattern and composition of soil organic matter (SOM) and its physical pools of Leptosols periodically affected by fire over the last 100 years in South Brazil. Soil samples at 0-5, 5-10, and 10-15 cm depths were collected from the following environments: native pasture without burning in the last year and grazed with 0.5 livestock per hectare per year (1NB); native pasture without burning in the last 23 years and grazed with 2.0 livestock per hectare per year (23NB); and an Araucaria forest (AF). Physical fractionation was performed with the 0-5 and 5-10 cm soil layers. Soil C and N stocks were determined in the three depths and in the physical pools, and organic matter was characterized by infrared spectroscopy and thermogravimetry. The largest C stocks in all depths and physical pools were found under the AF. The 23NB environment showed the lowest soil C and N stocks at the 5-15 cm depth, which was related to the end of burning and to the higher grazing intensity. The SOM of the occluded light fraction showed a greater chemical recalcitrance in 1NB than in 23NB. Annual pasture burning does not affect soil C stocks up to 15 cm of depth. frações físicas estoque de carbono composição química recalcitrância química termo-decomposição Agriculture (General) Deborah Pinheiro Dick verfasserin aut Graciele Sarante Santana verfasserin aut Michely Tomazi verfasserin aut Cimélio Bayer verfasserin aut In Pesquisa Agropecuária Brasileira Embrapa Informação Tecnológica, 2004 47(2012), 5, Seite 707-715 (DE-627)331758326 (DE-600)2053197-7 16783921 nnns volume:47 year:2012 number:5 pages:707-715 https://doi.org/10.1590/S0100-204X2012000500011 kostenfrei https://doaj.org/article/0a204b2f3332413a88e0fd339364be56 kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000500011&lng=en&tlng=en kostenfrei https://doaj.org/toc/1678-3921 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 47 2012 5 707-715
allfields_unstemmed	10.1590/S0100-204X2012000500011 doi (DE-627)DOAJ037073958 (DE-599)DOAJ0a204b2f3332413a88e0fd339364be56 DE-627 ger DE-627 rakwb eng spa por S1-972 Mariana da Luz Potes verfasserin aut Soil organic matter in fire-affected pastures and in an Araucaria forest in South-Brazilian Leptosols 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The objective of this work was to evaluate the distribution pattern and composition of soil organic matter (SOM) and its physical pools of Leptosols periodically affected by fire over the last 100 years in South Brazil. Soil samples at 0-5, 5-10, and 10-15 cm depths were collected from the following environments: native pasture without burning in the last year and grazed with 0.5 livestock per hectare per year (1NB); native pasture without burning in the last 23 years and grazed with 2.0 livestock per hectare per year (23NB); and an Araucaria forest (AF). Physical fractionation was performed with the 0-5 and 5-10 cm soil layers. Soil C and N stocks were determined in the three depths and in the physical pools, and organic matter was characterized by infrared spectroscopy and thermogravimetry. The largest C stocks in all depths and physical pools were found under the AF. The 23NB environment showed the lowest soil C and N stocks at the 5-15 cm depth, which was related to the end of burning and to the higher grazing intensity. The SOM of the occluded light fraction showed a greater chemical recalcitrance in 1NB than in 23NB. Annual pasture burning does not affect soil C stocks up to 15 cm of depth. frações físicas estoque de carbono composição química recalcitrância química termo-decomposição Agriculture (General) Deborah Pinheiro Dick verfasserin aut Graciele Sarante Santana verfasserin aut Michely Tomazi verfasserin aut Cimélio Bayer verfasserin aut In Pesquisa Agropecuária Brasileira Embrapa Informação Tecnológica, 2004 47(2012), 5, Seite 707-715 (DE-627)331758326 (DE-600)2053197-7 16783921 nnns volume:47 year:2012 number:5 pages:707-715 https://doi.org/10.1590/S0100-204X2012000500011 kostenfrei https://doaj.org/article/0a204b2f3332413a88e0fd339364be56 kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000500011&lng=en&tlng=en kostenfrei https://doaj.org/toc/1678-3921 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 47 2012 5 707-715
allfieldsGer	10.1590/S0100-204X2012000500011 doi (DE-627)DOAJ037073958 (DE-599)DOAJ0a204b2f3332413a88e0fd339364be56 DE-627 ger DE-627 rakwb eng spa por S1-972 Mariana da Luz Potes verfasserin aut Soil organic matter in fire-affected pastures and in an Araucaria forest in South-Brazilian Leptosols 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The objective of this work was to evaluate the distribution pattern and composition of soil organic matter (SOM) and its physical pools of Leptosols periodically affected by fire over the last 100 years in South Brazil. Soil samples at 0-5, 5-10, and 10-15 cm depths were collected from the following environments: native pasture without burning in the last year and grazed with 0.5 livestock per hectare per year (1NB); native pasture without burning in the last 23 years and grazed with 2.0 livestock per hectare per year (23NB); and an Araucaria forest (AF). Physical fractionation was performed with the 0-5 and 5-10 cm soil layers. Soil C and N stocks were determined in the three depths and in the physical pools, and organic matter was characterized by infrared spectroscopy and thermogravimetry. The largest C stocks in all depths and physical pools were found under the AF. The 23NB environment showed the lowest soil C and N stocks at the 5-15 cm depth, which was related to the end of burning and to the higher grazing intensity. The SOM of the occluded light fraction showed a greater chemical recalcitrance in 1NB than in 23NB. Annual pasture burning does not affect soil C stocks up to 15 cm of depth. frações físicas estoque de carbono composição química recalcitrância química termo-decomposição Agriculture (General) Deborah Pinheiro Dick verfasserin aut Graciele Sarante Santana verfasserin aut Michely Tomazi verfasserin aut Cimélio Bayer verfasserin aut In Pesquisa Agropecuária Brasileira Embrapa Informação Tecnológica, 2004 47(2012), 5, Seite 707-715 (DE-627)331758326 (DE-600)2053197-7 16783921 nnns volume:47 year:2012 number:5 pages:707-715 https://doi.org/10.1590/S0100-204X2012000500011 kostenfrei https://doaj.org/article/0a204b2f3332413a88e0fd339364be56 kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000500011&lng=en&tlng=en kostenfrei https://doaj.org/toc/1678-3921 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 47 2012 5 707-715
allfieldsSound	10.1590/S0100-204X2012000500011 doi (DE-627)DOAJ037073958 (DE-599)DOAJ0a204b2f3332413a88e0fd339364be56 DE-627 ger DE-627 rakwb eng spa por S1-972 Mariana da Luz Potes verfasserin aut Soil organic matter in fire-affected pastures and in an Araucaria forest in South-Brazilian Leptosols 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The objective of this work was to evaluate the distribution pattern and composition of soil organic matter (SOM) and its physical pools of Leptosols periodically affected by fire over the last 100 years in South Brazil. Soil samples at 0-5, 5-10, and 10-15 cm depths were collected from the following environments: native pasture without burning in the last year and grazed with 0.5 livestock per hectare per year (1NB); native pasture without burning in the last 23 years and grazed with 2.0 livestock per hectare per year (23NB); and an Araucaria forest (AF). Physical fractionation was performed with the 0-5 and 5-10 cm soil layers. Soil C and N stocks were determined in the three depths and in the physical pools, and organic matter was characterized by infrared spectroscopy and thermogravimetry. The largest C stocks in all depths and physical pools were found under the AF. The 23NB environment showed the lowest soil C and N stocks at the 5-15 cm depth, which was related to the end of burning and to the higher grazing intensity. The SOM of the occluded light fraction showed a greater chemical recalcitrance in 1NB than in 23NB. Annual pasture burning does not affect soil C stocks up to 15 cm of depth. frações físicas estoque de carbono composição química recalcitrância química termo-decomposição Agriculture (General) Deborah Pinheiro Dick verfasserin aut Graciele Sarante Santana verfasserin aut Michely Tomazi verfasserin aut Cimélio Bayer verfasserin aut In Pesquisa Agropecuária Brasileira Embrapa Informação Tecnológica, 2004 47(2012), 5, Seite 707-715 (DE-627)331758326 (DE-600)2053197-7 16783921 nnns volume:47 year:2012 number:5 pages:707-715 https://doi.org/10.1590/S0100-204X2012000500011 kostenfrei https://doaj.org/article/0a204b2f3332413a88e0fd339364be56 kostenfrei http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000500011&lng=en&tlng=en kostenfrei https://doaj.org/toc/1678-3921 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4367 GBV_ILN_4700 AR 47 2012 5 707-715
language	English Spanish Portuguese
source	In Pesquisa Agropecuária Brasileira 47(2012), 5, Seite 707-715 volume:47 year:2012 number:5 pages:707-715
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authorswithroles_txt_mv	Mariana da Luz Potes @@aut@@ Deborah Pinheiro Dick @@aut@@ Graciele Sarante Santana @@aut@@ Michely Tomazi @@aut@@ Cimélio Bayer @@aut@@
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callnumber-first	S - Agriculture
author	Mariana da Luz Potes
spellingShingle	Mariana da Luz Potes misc S1-972 misc frações físicas misc estoque de carbono misc composição química misc recalcitrância química misc termo-decomposição misc Agriculture (General) Soil organic matter in fire-affected pastures and in an Araucaria forest in South-Brazilian Leptosols
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topic_title	S1-972 Soil organic matter in fire-affected pastures and in an Araucaria forest in South-Brazilian Leptosols frações físicas estoque de carbono composição química recalcitrância química termo-decomposição
topic	misc S1-972 misc frações físicas misc estoque de carbono misc composição química misc recalcitrância química misc termo-decomposição misc Agriculture (General)
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title	Soil organic matter in fire-affected pastures and in an Araucaria forest in South-Brazilian Leptosols
ctrlnum	(DE-627)DOAJ037073958 (DE-599)DOAJ0a204b2f3332413a88e0fd339364be56
title_full	Soil organic matter in fire-affected pastures and in an Araucaria forest in South-Brazilian Leptosols
author_sort	Mariana da Luz Potes
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author_browse	Mariana da Luz Potes Deborah Pinheiro Dick Graciele Sarante Santana Michely Tomazi Cimélio Bayer
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title_sort	soil organic matter in fire-affected pastures and in an araucaria forest in south-brazilian leptosols
callnumber	S1-972
title_auth	Soil organic matter in fire-affected pastures and in an Araucaria forest in South-Brazilian Leptosols
abstract	The objective of this work was to evaluate the distribution pattern and composition of soil organic matter (SOM) and its physical pools of Leptosols periodically affected by fire over the last 100 years in South Brazil. Soil samples at 0-5, 5-10, and 10-15 cm depths were collected from the following environments: native pasture without burning in the last year and grazed with 0.5 livestock per hectare per year (1NB); native pasture without burning in the last 23 years and grazed with 2.0 livestock per hectare per year (23NB); and an Araucaria forest (AF). Physical fractionation was performed with the 0-5 and 5-10 cm soil layers. Soil C and N stocks were determined in the three depths and in the physical pools, and organic matter was characterized by infrared spectroscopy and thermogravimetry. The largest C stocks in all depths and physical pools were found under the AF. The 23NB environment showed the lowest soil C and N stocks at the 5-15 cm depth, which was related to the end of burning and to the higher grazing intensity. The SOM of the occluded light fraction showed a greater chemical recalcitrance in 1NB than in 23NB. Annual pasture burning does not affect soil C stocks up to 15 cm of depth.
abstractGer	The objective of this work was to evaluate the distribution pattern and composition of soil organic matter (SOM) and its physical pools of Leptosols periodically affected by fire over the last 100 years in South Brazil. Soil samples at 0-5, 5-10, and 10-15 cm depths were collected from the following environments: native pasture without burning in the last year and grazed with 0.5 livestock per hectare per year (1NB); native pasture without burning in the last 23 years and grazed with 2.0 livestock per hectare per year (23NB); and an Araucaria forest (AF). Physical fractionation was performed with the 0-5 and 5-10 cm soil layers. Soil C and N stocks were determined in the three depths and in the physical pools, and organic matter was characterized by infrared spectroscopy and thermogravimetry. The largest C stocks in all depths and physical pools were found under the AF. The 23NB environment showed the lowest soil C and N stocks at the 5-15 cm depth, which was related to the end of burning and to the higher grazing intensity. The SOM of the occluded light fraction showed a greater chemical recalcitrance in 1NB than in 23NB. Annual pasture burning does not affect soil C stocks up to 15 cm of depth.
abstract_unstemmed	The objective of this work was to evaluate the distribution pattern and composition of soil organic matter (SOM) and its physical pools of Leptosols periodically affected by fire over the last 100 years in South Brazil. Soil samples at 0-5, 5-10, and 10-15 cm depths were collected from the following environments: native pasture without burning in the last year and grazed with 0.5 livestock per hectare per year (1NB); native pasture without burning in the last 23 years and grazed with 2.0 livestock per hectare per year (23NB); and an Araucaria forest (AF). Physical fractionation was performed with the 0-5 and 5-10 cm soil layers. Soil C and N stocks were determined in the three depths and in the physical pools, and organic matter was characterized by infrared spectroscopy and thermogravimetry. The largest C stocks in all depths and physical pools were found under the AF. The 23NB environment showed the lowest soil C and N stocks at the 5-15 cm depth, which was related to the end of burning and to the higher grazing intensity. The SOM of the occluded light fraction showed a greater chemical recalcitrance in 1NB than in 23NB. Annual pasture burning does not affect soil C stocks up to 15 cm of depth.
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title_short	Soil organic matter in fire-affected pastures and in an Araucaria forest in South-Brazilian Leptosols
url	https://doi.org/10.1590/S0100-204X2012000500011 https://doaj.org/article/0a204b2f3332413a88e0fd339364be56 http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000500011&lng=en&tlng=en https://doaj.org/toc/1678-3921
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author2	Deborah Pinheiro Dick Graciele Sarante Santana Michely Tomazi Cimélio Bayer
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up_date	2024-07-03T23:49:13.661Z
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Soil organic matter in fire-affected pastures and in an Araucaria forest in South-Brazilian Leptosols

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