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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
07/05/2019 |
Data da última atualização: |
29/11/2023 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
BIANCHINI, F.; BIANCHINI, P. C.; ALMEIDA, L. R. S.; TAURA, T. A.; BARRETO, R. M. F. |
Afiliação: |
FABRICIO BIANCHINI, CPATSA; PAOLA CORTEZ BIANCHINI, CPATSA; Lucas Ricardo S. Almeida; TATIANA AYAKO TAURA, CPATSA; Rebeca Mascarenhas Fonseca Barreto. |
Título: |
Análise da cobertura vegetal e áreas antropizadas no território da Comunidade Fundo de Pasto Ouricuri, Uauá, BA, Brasil. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
In: SIMPÓSIO DO BIOMA CAATINGA, 2., 2018, Petrolina. Anais... Petrolina: Embrapa Semiárido, 2019. |
Páginas: |
p. 410-411. |
Série: |
(Embrapa Semiárido. Documentos, 287). |
Idioma: |
Português |
Conteúdo: |
Uma comunidade Fundo de Pasto é caracterizada pela ocupação tradicional de um território, com organização social baseada em relações de parentesco, uso coletivo extrativista e de criação animal na Caatinga. |
Palavras-Chave: |
Agrobiodiversidade; Comunidade Fundo de Pasto; Desenvolvimento territorial; Fundo de pasto. |
Thesagro: |
Caatinga; Cobertura Vegetal. |
Thesaurus Nal: |
Biodiversity; Rural communities; Rural development; Savannas. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/197229/1/Fabricio.pdf
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Marc: |
LEADER 01210nam a2200301 a 4500 001 2108795 005 2023-11-29 008 2019 bl uuuu u00u1 u #d 100 1 $aBIANCHINI, F. 245 $aAnálise da cobertura vegetal e áreas antropizadas no território da Comunidade Fundo de Pasto Ouricuri, Uauá, BA, Brasil.$h[electronic resource] 260 $aIn: SIMPÓSIO DO BIOMA CAATINGA, 2., 2018, Petrolina. Anais... Petrolina: Embrapa Semiárido$c2019 300 $ap. 410-411. 490 $a(Embrapa Semiárido. Documentos, 287). 520 $aUma comunidade Fundo de Pasto é caracterizada pela ocupação tradicional de um território, com organização social baseada em relações de parentesco, uso coletivo extrativista e de criação animal na Caatinga. 650 $aBiodiversity 650 $aRural communities 650 $aRural development 650 $aSavannas 650 $aCaatinga 650 $aCobertura Vegetal 653 $aAgrobiodiversidade 653 $aComunidade Fundo de Pasto 653 $aDesenvolvimento territorial 653 $aFundo de pasto 700 1 $aBIANCHINI, P. C. 700 1 $aALMEIDA, L. R. S. 700 1 $aTAURA, T. A. 700 1 $aBARRETO, R. M. F.
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Embrapa Semiárido (CPATSA) |
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Registro Completo
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
05/01/2017 |
Data da última atualização: |
08/10/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
ARAUJO, J. K. S.; SOUZA JÚNIOR, V. S. de; MARQUES, F. A.; VORONEY, P.; SOUZA, R. A. da S. |
Afiliação: |
JANE KELLY SILVA ARAUJO, UFRPE; VALDOMIRO SEVERINO DE SOUZA JÚNIOR, UFRPE; FLAVIO ADRIANO MARQUES, CNPS; PAUL VORONEY, School of Environmental Sciences, University of Guelph; REGILENE ANGELICA DA SILVA SOUZA, UFRA. |
Título: |
Assessment of carbon storage under rainforests in Humic Hapludox along a climosequence extending from the Atlantic coast to the highlands of northeastern Brazil. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Science of The Total Environment, v. 568, p. 339-349, Oct. 2016. |
DOI: |
https://doi.org/10.1016/j.scitotenv.2016.06.025 |
Idioma: |
Inglês |
Conteúdo: |
An understanding of the stock of soil organic carbon (SOC) in the umbric epipedon of Oxisols located in the tropical forests surrounded by a semi-arid region is limited but essential because of their importance in the global cycle of carbon (C). The purpose of this study was to assess the effects of climatic (temperature and rainfall), soil organic matter (SOM) composition and litter on the stability of C in surfaces and subsurfaces in five Humic Oxisols along a 475-km climo sequence from 143 to 963m a.s.l. in a tropical environment in northeastern Brazil. Weassessed vertical changes in SOC; soil total nitrogen (N); C from the microbial biomass; 13C, 15N and the humified composition of SOM; the composition of the humin (HUM) fraction by Fourier Transform Infrared (FTIR); and Thermogravimetry (TG) and Differential Scanning Calorimetry (DSC) at depth. The elemental and isotopic composition of the litter samples were analyzed in all areas studied. The results indicated that the current climate and recalcitrant organic compounds are not preponderant factors in the formation of the umbric epipedon, as suggested by the partial influence of temperature and rainfall on SOM. In addition, SOM was dominated by easily decomposable compounds, as indicated by the predominance of aliphatic C-H groups in the HUM fraction in the FTIR spectra; by the thermal oxidation through DSC-TG, which revealed that approximately 50% of the HUM was composed easily decomposable compounds; and by the high proportion of organic C present in the microbial biomass. Values of 13C showed a predominance of C3 plant-C in SOM where as 15N patterns indicated that N dynamics differ among the profiles and drive the accumulation of C. These findings can help to characterize the susceptibility of these soils to changes in climate and land use and the implications for the sequestration of soil C. MenosAn understanding of the stock of soil organic carbon (SOC) in the umbric epipedon of Oxisols located in the tropical forests surrounded by a semi-arid region is limited but essential because of their importance in the global cycle of carbon (C). The purpose of this study was to assess the effects of climatic (temperature and rainfall), soil organic matter (SOM) composition and litter on the stability of C in surfaces and subsurfaces in five Humic Oxisols along a 475-km climo sequence from 143 to 963m a.s.l. in a tropical environment in northeastern Brazil. Weassessed vertical changes in SOC; soil total nitrogen (N); C from the microbial biomass; 13C, 15N and the humified composition of SOM; the composition of the humin (HUM) fraction by Fourier Transform Infrared (FTIR); and Thermogravimetry (TG) and Differential Scanning Calorimetry (DSC) at depth. The elemental and isotopic composition of the litter samples were analyzed in all areas studied. The results indicated that the current climate and recalcitrant organic compounds are not preponderant factors in the formation of the umbric epipedon, as suggested by the partial influence of temperature and rainfall on SOM. In addition, SOM was dominated by easily decomposable compounds, as indicated by the predominance of aliphatic C-H groups in the HUM fraction in the FTIR spectra; by the thermal oxidation through DSC-TG, which revealed that approximately 50% of the HUM was composed easily decomposable compounds; and by the high p... Mostrar Tudo |
Palavras-Chave: |
Biomassa microbiana; Carbono profundo; FTIR; Lixo; Nitrogênio do solo; Semiárido. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02734naa a2200253 a 4500 001 2059966 005 2021-10-08 008 2016 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.scitotenv.2016.06.025$2DOI 100 1 $aARAUJO, J. K. S. 245 $aAssessment of carbon storage under rainforests in Humic Hapludox along a climosequence extending from the Atlantic coast to the highlands of northeastern Brazil.$h[electronic resource] 260 $c2016 520 $aAn understanding of the stock of soil organic carbon (SOC) in the umbric epipedon of Oxisols located in the tropical forests surrounded by a semi-arid region is limited but essential because of their importance in the global cycle of carbon (C). The purpose of this study was to assess the effects of climatic (temperature and rainfall), soil organic matter (SOM) composition and litter on the stability of C in surfaces and subsurfaces in five Humic Oxisols along a 475-km climo sequence from 143 to 963m a.s.l. in a tropical environment in northeastern Brazil. Weassessed vertical changes in SOC; soil total nitrogen (N); C from the microbial biomass; 13C, 15N and the humified composition of SOM; the composition of the humin (HUM) fraction by Fourier Transform Infrared (FTIR); and Thermogravimetry (TG) and Differential Scanning Calorimetry (DSC) at depth. The elemental and isotopic composition of the litter samples were analyzed in all areas studied. The results indicated that the current climate and recalcitrant organic compounds are not preponderant factors in the formation of the umbric epipedon, as suggested by the partial influence of temperature and rainfall on SOM. In addition, SOM was dominated by easily decomposable compounds, as indicated by the predominance of aliphatic C-H groups in the HUM fraction in the FTIR spectra; by the thermal oxidation through DSC-TG, which revealed that approximately 50% of the HUM was composed easily decomposable compounds; and by the high proportion of organic C present in the microbial biomass. Values of 13C showed a predominance of C3 plant-C in SOM where as 15N patterns indicated that N dynamics differ among the profiles and drive the accumulation of C. These findings can help to characterize the susceptibility of these soils to changes in climate and land use and the implications for the sequestration of soil C. 653 $aBiomassa microbiana 653 $aCarbono profundo 653 $aFTIR 653 $aLixo 653 $aNitrogênio do solo 653 $aSemiárido 700 1 $aSOUZA JÚNIOR, V. S. de 700 1 $aMARQUES, F. A. 700 1 $aVORONEY, P. 700 1 $aSOUZA, R. A. da S. 773 $tScience of The Total Environment$gv. 568, p. 339-349, Oct. 2016.
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