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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
02/03/2017 |
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Data da última atualização: |
18/05/2022 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
CARDOZO JUNIOR, F. M.; CARNEIRO, R. F. V.; LEITE, L. F. C.; ARAUJO, A. S. F. |
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Afiliação: |
FRANCISCO M. CARDOZO JUNIOR, UFPI; ROMERO F. V. CARNEIRO, UFPI; LUIZ FERNANDO CARVALHO LEITE, CPAMN; ADEMIR S. F. ARAUJO, UFPI. |
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Título: |
Soil carbon pools in different pasture systems. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Spanish Journal of Agricultural Research, v. 14, n. 1, e0902, 2016. |
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Páginas: |
5 p. |
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DOI: |
http://dx.doi.org/10.5424/sjar/2016141-7939 |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this study was to assess the carbon pools of a tropical soil where the native forest was replaced with different pasture systems. We studied five pasture production systems, including four monoculture systems with forage grasses such as Andropogon, Brachiaria, Panicum, and Cynodon, and an agroforestry system as well as a native vegetation plot. Greater availability of fulvic acid was detected in the agroforestry system as compared with that in the other systems. Higher lability of C was detected in the Andropogon system during the dry and rainy seasons and during the dry season in Cynodon. During the dry season, all pastures systems showed deficits in the net removal of atmospheric CO2. The structure and practices of the agroforestry system enables more carbon to be sequestered in the soil as compared with the monoculture pasture, suggesting that it is an important practice to mitigate climatic change and to improve soil quality. |
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Palavras-Chave: |
Sistema agroflorestal; Substâncias húmicas. |
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Thesagro: |
Carbono. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/156905/1/ShortCommunicationLFernandoSpanishJournalAgricRes2016.pdf
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Marc: |
LEADER 01609naa a2200217 a 4500
001 2065861
005 2022-05-18
008 2016 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.5424/sjar/2016141-7939$2DOI
100 1 $aCARDOZO JUNIOR, F. M.
245 $aSoil carbon pools in different pasture systems.$h[electronic resource]
260 $c2016
300 $a5 p.
520 $aThe aim of this study was to assess the carbon pools of a tropical soil where the native forest was replaced with different pasture systems. We studied five pasture production systems, including four monoculture systems with forage grasses such as Andropogon, Brachiaria, Panicum, and Cynodon, and an agroforestry system as well as a native vegetation plot. Greater availability of fulvic acid was detected in the agroforestry system as compared with that in the other systems. Higher lability of C was detected in the Andropogon system during the dry and rainy seasons and during the dry season in Cynodon. During the dry season, all pastures systems showed deficits in the net removal of atmospheric CO2. The structure and practices of the agroforestry system enables more carbon to be sequestered in the soil as compared with the monoculture pasture, suggesting that it is an important practice to mitigate climatic change and to improve soil quality.
650 $aCarbono
653 $aSistema agroflorestal
653 $aSubstâncias húmicas
700 1 $aCARNEIRO, R. F. V.
700 1 $aLEITE, L. F. C.
700 1 $aARAUJO, A. S. F.
773 $tSpanish Journal of Agricultural Research$gv. 14, n. 1, e0902, 2016.
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pesca e Aquicultura; Embrapa Unidades Centrais. |
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Data corrente: |
20/04/2011 |
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Data da última atualização: |
17/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
AVANZI, J. C.; NORTON, L. D.; SILVA, M. L. N.; CURI, N.; OLIVEIRA, A. H.; SILVA, M. A. da. |
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Afiliação: |
JUNIOR CESAR AVANZI, CNPASA; LLOYD DARRELL NORTON, USDA; MARX LEANDRO NAVES SILVA, UNIVERSIDADE FEDERAL DE LAVRAS; NILTON CURI, UNIVERSIDADE FEDERAL DE LAVRAS; ANNA HOFFMANN OLIVEIRA, UNIVERSIDADE FEDERAL DE LAVRAS; MAYESSE APARECIDA DA SILVA, UNIVERSIDADE FEDERAL DE LAVRAS. |
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Título: |
Aggregate stability in soils cultivated with eucalyptus. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 46, n. 1, p. 89-96, jan. 2011. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to evaluate the aggregate stability of tropical soils under eucalyptus plantation and native vegetation, and assess the relationships between aggregate stability and some soil chemical and physical properties. Argisols, Cambisol, Latosols and Plinthosol within three eucalyptus-cultivated regions, in the states of Espírito Santo, Rio Grande do Sul and Minas Gerais, Brazil, were studied. For each region, soils under native vegetation were compared to those under minimum tillage with eucalyptus cultivation. The aggregate stability was measured using the high‑energy moisture characteristic (HEMC) technique, i.e., the moisture release curve at very low suctions. This method compares the resistance of aggregates to slaking on a relative scale from zero to one. Thus, the aggregate stability from different soils and management practices can be directly compared. The aggregate stability ratio was greater than 50% for all soils, which shows that the aggregate stability index is high, both in eucalyptus and native vegetation areas. This suggests that soil management adopted for eucalyptus cultivation does not substantially modify this property. In these soils, the aggregate stability ratio does not show a good relationship with clay or soil organic matter contents. However, soil organic matter shows a positive relationship with clay content and cation exchange capacity. |
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Palavras-Chave: |
Curva característica de umidade em alta energia; Eucalyptus sp; Forest systems; High-energy moisture characteristic curve; Sistema florestal; Sward structure. |
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Thesagro: |
Eucalipto; Floresta; Solo tropical; Umidade. |
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Thesaurus NAL: |
Eucalyptus; Forest soils; tropical soils. |
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Categoria do assunto: |
--
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/43772/1/Avanzi2011.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/168472/1/Aggregate-stability-in-soils.pdf
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Marc: |
LEADER 02375naa a2200337 a 4500
001 1903131
005 2024-01-17
008 2011 bl uuuu u00u1 u #d
100 1 $aAVANZI, J. C.
245 $aAggregate stability in soils cultivated with eucalyptus.
260 $c2011
520 $aThe objective of this work was to evaluate the aggregate stability of tropical soils under eucalyptus plantation and native vegetation, and assess the relationships between aggregate stability and some soil chemical and physical properties. Argisols, Cambisol, Latosols and Plinthosol within three eucalyptus-cultivated regions, in the states of Espírito Santo, Rio Grande do Sul and Minas Gerais, Brazil, were studied. For each region, soils under native vegetation were compared to those under minimum tillage with eucalyptus cultivation. The aggregate stability was measured using the high‑energy moisture characteristic (HEMC) technique, i.e., the moisture release curve at very low suctions. This method compares the resistance of aggregates to slaking on a relative scale from zero to one. Thus, the aggregate stability from different soils and management practices can be directly compared. The aggregate stability ratio was greater than 50% for all soils, which shows that the aggregate stability index is high, both in eucalyptus and native vegetation areas. This suggests that soil management adopted for eucalyptus cultivation does not substantially modify this property. In these soils, the aggregate stability ratio does not show a good relationship with clay or soil organic matter contents. However, soil organic matter shows a positive relationship with clay content and cation exchange capacity.
650 $aEucalyptus
650 $aForest soils
650 $atropical soils
650 $aEucalipto
650 $aFloresta
650 $aSolo tropical
650 $aUmidade
653 $aCurva característica de umidade em alta energia
653 $aEucalyptus sp
653 $aForest systems
653 $aHigh-energy moisture characteristic curve
653 $aSistema florestal
653 $aSward structure
700 1 $aNORTON, L. D.
700 1 $aSILVA, M. L. N.
700 1 $aCURI, N.
700 1 $aOLIVEIRA, A. H.
700 1 $aSILVA, M. A. da
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 46, n. 1, p. 89-96, jan. 2011.
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Embrapa Pesca e Aquicultura (CNPASA) |
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