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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
08/04/2022 |
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Data da última atualização: |
11/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, L. J. da; DICK, D. P.; NECKEL, D.; NÓBREGA, G. N.; RODRIGUES, R. de A. R.; BARBOSA, R. I.; CORDEIRO, R. C. |
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Afiliação: |
LIBÉRIO JUNIO DA SILVA, UFF; DEBORAH PINHEIRO DICK, UFRGS; DJENNIFER NECKEL, UFRGS; GABRIEL NUTO NÓBREGA, UFF; RENATO DE ARAGAO RIBEIRO RODRIGUES, CNPS; REINALDO IMBROZIO BARBOSA, INPA; RENATO CAMPELLO CORDEIRO, UFF. |
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Título: |
Effects of fire on soil organic matter in northern Amazonian forest fragments. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Acta Amazonica, v. 52, n. 1, p. 13-22, 2022. |
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DOI: |
https://doi.org/10.1590/1809-4392202100133 |
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Idioma: |
Inglês |
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Conteúdo: |
Forest fires incorporate pyrogenic organic matter into the soil, affecting the characteristics of soil organic matter (SOM) due to its high aromaticity, increasing its renewal time. However, the factors that control the concentration of pyrogenic organic matter and its chemical composition and structure are still little known. Forest fragments dispersed in a savanna matrix of the northern Brazilian Amazon are frequently impacted by fires, which can affect the composition of SOM within the fragments. The aim of this study was to analyse the chemical composition of SOM in the border and interior of six forest fragments in the Roraima savanna, in the northern Brazilian Amazon. Soil samples were collected at 10-cm intervals up to 1 m in depth at the border and in the interior of each fragment. Soil organic material concentration was determined with 10% HF solution and its elemental composition, thermogravimetric index, and 13C CPMAS NMR spectroscopic analysis were determined. There was no significant difference in the aromaticity index between border and interior. The concentration of alkyl C structures between border (22 to 25%) and interior (19 to 29%) indicated the occurrence of medium-intensity fires in the study area. The thermogravimetric analysis showed no significant difference in the thermal stability of SOM between border and interior. Our results showed no pronounced difference in SOM quality up to 1 m depth between the border and the interior of the evaluated forest fragments, indicating that this compartment is stable throughout the fragments. Incêndios florestais incorporam matéria orgânica pirogênica ao solo, afetando as características da matéria orgânica do solo (MOS), devido a sua alta aromaticidade. Porém, os fatores que controlam a composição química e a estrutura da matéria orgânica pirogência ainda são pouco conhecidos. Fragmentos florestais dispersos em uma matriz de savana na Amazônia setentrional brasileira são freqüentemente impactados por incêndios, que podem afetar a composição da MOS nos fragmentos. O objetivo deste estudo foi analisar a composição química da MOS na borda e no interior de seis fragmentos florestais situados na savana de Roraima, norte da Amazônia brasileira. Amostras de solo foram coletadas em intervalos de 10 cm até 1 m de profundidade na borda e no interior de cada fragmento. A concentração da MOS foi determinada com solução de HF a 10% e sua composição elementar, índice termogravimétrico e análise espectroscópica de 13C CPMAS RMN foram determinados. Não houve diferença significativa no índice de aromaticidade entre borda e interior. A concentração de estruturas alquil C entre a borda (22 a 25%) e o interior (19 a 29%) indicou a ocorrência de incêndios de média intensidade na área de estudo. A análise termogravimétrica não mostrou diferença significativa na estabilidade térmica da matéria orgânica do solo entre a borda e o interior. Nossos resultados não mostraram diferença pronunciada na qualidade da MOS até 1 m de profundidade entre a borda e o interior dos fragmentos florestais avaliados, indicando que este compartimento é estável ao longo dos fragmentos. MenosForest fires incorporate pyrogenic organic matter into the soil, affecting the characteristics of soil organic matter (SOM) due to its high aromaticity, increasing its renewal time. However, the factors that control the concentration of pyrogenic organic matter and its chemical composition and structure are still little known. Forest fragments dispersed in a savanna matrix of the northern Brazilian Amazon are frequently impacted by fires, which can affect the composition of SOM within the fragments. The aim of this study was to analyse the chemical composition of SOM in the border and interior of six forest fragments in the Roraima savanna, in the northern Brazilian Amazon. Soil samples were collected at 10-cm intervals up to 1 m in depth at the border and in the interior of each fragment. Soil organic material concentration was determined with 10% HF solution and its elemental composition, thermogravimetric index, and 13C CPMAS NMR spectroscopic analysis were determined. There was no significant difference in the aromaticity index between border and interior. The concentration of alkyl C structures between border (22 to 25%) and interior (19 to 29%) indicated the occurrence of medium-intensity fires in the study area. The thermogravimetric analysis showed no significant difference in the thermal stability of SOM between border and interior. Our results showed no pronounced difference in SOM quality up to 1 m depth between the border and the interior of the evaluated forest ... Mostrar Tudo |
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Palavras-Chave: |
Aromaticity index; Composição elementar; FTIR; Índice de aromaticidade. |
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Thesagro: |
Incêndio Florestal. |
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Thesaurus Nal: |
Elemental composition; Forest fires. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1142011/1/Effects-of-fire-on-soil-organic-matter-2022.pdf
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Marc: |
LEADER 04077naa a2200289 a 4500
001 2142011
005 2022-04-11
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/1809-4392202100133$2DOI
100 1 $aSILVA, L. J. da
245 $aEffects of fire on soil organic matter in northern Amazonian forest fragments.$h[electronic resource]
260 $c2022
520 $aForest fires incorporate pyrogenic organic matter into the soil, affecting the characteristics of soil organic matter (SOM) due to its high aromaticity, increasing its renewal time. However, the factors that control the concentration of pyrogenic organic matter and its chemical composition and structure are still little known. Forest fragments dispersed in a savanna matrix of the northern Brazilian Amazon are frequently impacted by fires, which can affect the composition of SOM within the fragments. The aim of this study was to analyse the chemical composition of SOM in the border and interior of six forest fragments in the Roraima savanna, in the northern Brazilian Amazon. Soil samples were collected at 10-cm intervals up to 1 m in depth at the border and in the interior of each fragment. Soil organic material concentration was determined with 10% HF solution and its elemental composition, thermogravimetric index, and 13C CPMAS NMR spectroscopic analysis were determined. There was no significant difference in the aromaticity index between border and interior. The concentration of alkyl C structures between border (22 to 25%) and interior (19 to 29%) indicated the occurrence of medium-intensity fires in the study area. The thermogravimetric analysis showed no significant difference in the thermal stability of SOM between border and interior. Our results showed no pronounced difference in SOM quality up to 1 m depth between the border and the interior of the evaluated forest fragments, indicating that this compartment is stable throughout the fragments. Incêndios florestais incorporam matéria orgânica pirogênica ao solo, afetando as características da matéria orgânica do solo (MOS), devido a sua alta aromaticidade. Porém, os fatores que controlam a composição química e a estrutura da matéria orgânica pirogência ainda são pouco conhecidos. Fragmentos florestais dispersos em uma matriz de savana na Amazônia setentrional brasileira são freqüentemente impactados por incêndios, que podem afetar a composição da MOS nos fragmentos. O objetivo deste estudo foi analisar a composição química da MOS na borda e no interior de seis fragmentos florestais situados na savana de Roraima, norte da Amazônia brasileira. Amostras de solo foram coletadas em intervalos de 10 cm até 1 m de profundidade na borda e no interior de cada fragmento. A concentração da MOS foi determinada com solução de HF a 10% e sua composição elementar, índice termogravimétrico e análise espectroscópica de 13C CPMAS RMN foram determinados. Não houve diferença significativa no índice de aromaticidade entre borda e interior. A concentração de estruturas alquil C entre a borda (22 a 25%) e o interior (19 a 29%) indicou a ocorrência de incêndios de média intensidade na área de estudo. A análise termogravimétrica não mostrou diferença significativa na estabilidade térmica da matéria orgânica do solo entre a borda e o interior. Nossos resultados não mostraram diferença pronunciada na qualidade da MOS até 1 m de profundidade entre a borda e o interior dos fragmentos florestais avaliados, indicando que este compartimento é estável ao longo dos fragmentos.
650 $aElemental composition
650 $aForest fires
650 $aIncêndio Florestal
653 $aAromaticity index
653 $aComposição elementar
653 $aFTIR
653 $aÍndice de aromaticidade
700 1 $aDICK, D. P.
700 1 $aNECKEL, D.
700 1 $aNÓBREGA, G. N.
700 1 $aRODRIGUES, R. de A. R.
700 1 $aBARBOSA, R. I.
700 1 $aCORDEIRO, R. C.
773 $tActa Amazonica$gv. 52, n. 1, p. 13-22, 2022.
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Registro original: |
Embrapa Solos (CNPS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
28/02/2020 |
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Data da última atualização: |
17/04/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
C - 0 |
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Autoria: |
LOPES, M. J. dos S.; DIAS FILHO, M. B.; CASTRO, T. H. dos R.; SILVA, E. F. da; RÊGO, M. C. F.; SILVA, G. B. da. |
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Afiliação: |
Monyck Jeane dos Santos Lopes, MPEG; MOACYR BERNARDINO DIAS FILHO, CPATU; Thomaz Henrique dos Reis Castro, UFRA; Edilson Ferreira da Silva, MPEG; Marcela Cristiane Ferreira Rêgo, UFRA; Gisele Barata da Silva, UFRA. |
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Título: |
Impacts of plant growth-promoting rhizobacteria on tropical forage grass in Brazil. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Agricultural Studies, v. 8, n. 1, p. 342-356, 2020. |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this study was to evaluate the effects of plant growth-promoting rhizobacteria effects on anatomical characteristics and nutritional value of Brachiaria (Syn. Urochloa) brizantha cv. BRS Piatã. The experimental design applied was completely randomized design with three treatments: (1) non-inoculated unfertilized-control plants (C-), (2) non-inoculated fertilized-control plants (C+) and (3) B. brizantha inoculated with Pseudomonas fluorescens (BRM-32111) and Burkholderia pyrrocinia (BRM-32113). The following parameters were evaluated at 35 days after seedling emergence: biomass production, plant height, net photosynthesis (A), water-use efficiency (WUE), chlorophyll (SPAD), anatomical and nutritional. The rhizobacteria modified the anatomy of the leaf, culm and roots of B. brizantha. They also increased the chlorophyll content, A, WUE, total soluble carbohydrates, starch and crude protein contents, N, P, Mg and Fe concentrations, plant height, root area and biomass production. Therefore, we conclude that co-inoculation with P. fluorescens (BRM-32111) and B. pyrrocinia (BRM-32113) modified the anatomy and biochemistry of B. brizantha, promoting growth and nutrient accumulation. Therefore, these findings set up the basis for additional exploratory studies, using these rhizobacteria as biotechnological innovation with potential of use as biofertilizer in B. brizantha, aiming higher productivity and nutritive value in a more eco-friendly and sustainable pasture production system. MenosThe aim of this study was to evaluate the effects of plant growth-promoting rhizobacteria effects on anatomical characteristics and nutritional value of Brachiaria (Syn. Urochloa) brizantha cv. BRS Piatã. The experimental design applied was completely randomized design with three treatments: (1) non-inoculated unfertilized-control plants (C-), (2) non-inoculated fertilized-control plants (C+) and (3) B. brizantha inoculated with Pseudomonas fluorescens (BRM-32111) and Burkholderia pyrrocinia (BRM-32113). The following parameters were evaluated at 35 days after seedling emergence: biomass production, plant height, net photosynthesis (A), water-use efficiency (WUE), chlorophyll (SPAD), anatomical and nutritional. The rhizobacteria modified the anatomy of the leaf, culm and roots of B. brizantha. They also increased the chlorophyll content, A, WUE, total soluble carbohydrates, starch and crude protein contents, N, P, Mg and Fe concentrations, plant height, root area and biomass production. Therefore, we conclude that co-inoculation with P. fluorescens (BRM-32111) and B. pyrrocinia (BRM-32113) modified the anatomy and biochemistry of B. brizantha, promoting growth and nutrient accumulation. Therefore, these findings set up the basis for additional exploratory studies, using these rhizobacteria as biotechnological innovation with potential of use as biofertilizer in B. brizantha, aiming higher productivity and nutritive value in a more eco-friendly and sustainable pasture product... Mostrar Tudo |
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Thesagro: |
Biofertilizante; Brachiaria; Gramínea; Gramínea Forrageira; Nutriente; Pastagem; Produção. |
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Thesaurus NAL: |
Forage; Plant growth-promoting rhizobacteria. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/211282/1/16077-59028-1-PB.pdf
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Marc: |
LEADER 02352naa a2200289 a 4500
001 2120640
005 2020-04-17
008 2020 bl uuuu u00u1 u #d
100 1 $aLOPES, M. J. dos S.
245 $aImpacts of plant growth-promoting rhizobacteria on tropical forage grass in Brazil.$h[electronic resource]
260 $c2020
520 $aThe aim of this study was to evaluate the effects of plant growth-promoting rhizobacteria effects on anatomical characteristics and nutritional value of Brachiaria (Syn. Urochloa) brizantha cv. BRS Piatã. The experimental design applied was completely randomized design with three treatments: (1) non-inoculated unfertilized-control plants (C-), (2) non-inoculated fertilized-control plants (C+) and (3) B. brizantha inoculated with Pseudomonas fluorescens (BRM-32111) and Burkholderia pyrrocinia (BRM-32113). The following parameters were evaluated at 35 days after seedling emergence: biomass production, plant height, net photosynthesis (A), water-use efficiency (WUE), chlorophyll (SPAD), anatomical and nutritional. The rhizobacteria modified the anatomy of the leaf, culm and roots of B. brizantha. They also increased the chlorophyll content, A, WUE, total soluble carbohydrates, starch and crude protein contents, N, P, Mg and Fe concentrations, plant height, root area and biomass production. Therefore, we conclude that co-inoculation with P. fluorescens (BRM-32111) and B. pyrrocinia (BRM-32113) modified the anatomy and biochemistry of B. brizantha, promoting growth and nutrient accumulation. Therefore, these findings set up the basis for additional exploratory studies, using these rhizobacteria as biotechnological innovation with potential of use as biofertilizer in B. brizantha, aiming higher productivity and nutritive value in a more eco-friendly and sustainable pasture production system.
650 $aForage
650 $aPlant growth-promoting rhizobacteria
650 $aBiofertilizante
650 $aBrachiaria
650 $aGramínea
650 $aGramínea Forrageira
650 $aNutriente
650 $aPastagem
650 $aProdução
700 1 $aDIAS FILHO, M. B.
700 1 $aCASTRO, T. H. dos R.
700 1 $aSILVA, E. F. da
700 1 $aRÊGO, M. C. F.
700 1 $aSILVA, G. B. da
773 $tJournal of Agricultural Studies$gv. 8, n. 1, p. 342-356, 2020.
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Embrapa Amazônia Oriental (CPATU) |
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| 161. |  | 5153958, ANNALS OF MATHEMATICAL STATISTICS, Institute of Mathematical Statistics, Ann Arbor, Mich., US
Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Unidades Centrais. |   |
| 163. | | 0905093, ANUARIO ESTATISTICO DO AMAPA, Secretaria de Planejamento e Coordenacao, Macapa, AP
Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Amapá; Embrapa Amazônia Oriental. | |
| 164. | | 0350129, ARCHIV FUR TIERZUCHT, Akademi Verlag, Dummerstof-Alemanha
Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Suínos e Aves. | |
| 165. | | 1350046, ARROZ (BOGOTA), Federacion Nacional de Arroceros, Bogota, CO
Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Agropecuária Oeste; Embrapa Amapá; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Meio-Norte; Embrapa Solos. | |
| 166. | | 0600633, AUSTRALIAN SEPTORIA NEWSLETTER, Wheat Industry Research Council of Australia, Australia
Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Trigo. | |
| 168. | | 0900360, BAHIA RURAL, Cooperativa Central Instituto de Pecuaria da Bahia, Salvador, BA
Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Semiárido. | |
| 170. | | 2450182, BIOTECHNOLOGY AND DEVELOPMENT MONITOR, Dept. of International Relations and Public International Law of University Amsterdam, Amsterdam-Holanda
Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Amapá; Embrapa Meio Ambiente; Embrapa Soja; Embrapa Trigo. | |
| 172. | | 0900808, BRASIL MOAGEIRO, Acao Moageira, Porto Alegre-RS
Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Trigo. | |
| 174. | | 2000160, CAHIERS DE MEDECINE VETERINAIRE, Societe Parisiense d'Expansion Chimique, Paris-Franca
Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Amazônia Oriental. | |
| 175. | | 5151638, CALIFORNIA TOMATO GROWER, California Tomato Growers Association, California-CA
Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Hortaliças. | |
| 177. | | 0901626, SUÍNOS & CIA, Campinas - SP
Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Suínos e Aves. |  |
| 178. | | 2000090, CHIMIE ANALYTIQUE, Societe de Productions Documentaires, Malmaison-Franca
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| 179. | | 5150982, COLEOPTERISTS BULLETIN, Coleopterists Society, Chicago-IL
Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Acre; Embrapa Algodão; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Gado de Corte; Embrapa Meio Norte / UEP-Parnaíba; Embrapa Semiárido; Embrapa Soja; Embrapa Suínos e Aves; Embrapa Trigo. MenosCatálogo Coletivo de Periódicos Embrapa; Embrapa Acre; Embrapa Algodão; Embrapa Amazônia Oriental; Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Gado de Corte; Embrapa Meio Norte / UEP-Parnaíba; Embrapa Semiárido; Embrapa Soja... Mostrar Todas | |
| 180. | | 3600041, COMERCIO EXTERIOR. MEXICO, Banco Nacional de Comercio Exterior, Mexico-DF
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