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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sul. |
Data corrente: |
25/02/2014 |
Data da última atualização: |
25/02/2014 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
BRANCO, V. T. A.; MAZZOCATO, A. C.; SANTOS, D. da S. dos; MAIA, M. B.; SILVA, R. D. D. |
Afiliação: |
Vivian Teixeira Alves Branco; ANA CRISTINA MAZZOCATO, CPPSUL; Daiane da Silva dos Santos; Melissa Batista Maia; Renata Dill Duarte Silva. |
Título: |
Potencial germinativo de sementes de Bromus spp. do Banco Ativo de Germoplasma Forrageiras do Sul. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
In: SALÃO INTERNACIONAL DE ENSINO, EXTENSÃO E PESQUISA, 5., 2013, Bagé. Discussão, participação e cidadania: anais. Bagé: Unipampa, 2013. |
Idioma: |
Português |
Notas: |
SIEPE. |
Thesagro: |
Gramínea forrageira. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/98219/1/Branco-siepe.pdf
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Marc: |
LEADER 00643nam a2200169 a 4500 001 1981230 005 2014-02-25 008 2013 bl uuuu u00u1 u #d 100 1 $aBRANCO, V. T. A. 245 $aPotencial germinativo de sementes de Bromus spp. do Banco Ativo de Germoplasma Forrageiras do Sul.$h[electronic resource] 260 $aIn: SALÃO INTERNACIONAL DE ENSINO, EXTENSÃO E PESQUISA, 5., 2013, Bagé. Discussão, participação e cidadania: anais. Bagé: Unipampa$c2013 500 $aSIEPE. 650 $aGramínea forrageira 700 1 $aMAZZOCATO, A. C. 700 1 $aSANTOS, D. da S. dos 700 1 $aMAIA, M. B. 700 1 $aSILVA, R. D. D.
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Embrapa Pecuária Sul (CPPSUL) |
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Registro Completo
Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
Data corrente: |
08/01/2021 |
Data da última atualização: |
08/01/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
MEDEIROS, A. de S.; MAIA, S. M. F.; SANTOS, T. C. dos; GOMES, T. C. de A. |
Afiliação: |
ALADAIR DE SOUZA MEDEIROS; STOECIO MALTA FERREIRA MAIA; THIAGO CANDIDO DOS SANTOS; TAMARA CLAUDIA DE ARAUJO GOMES, CPATC. |
Título: |
Losses and gains of soil organic carbon in grasslands in the Brazilian semi-arid region. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Scientia Agricola, v.78, n.3, e20190076, 2021. |
ISSN: |
1678-992X |
Idioma: |
Inglês |
Conteúdo: |
Studies show that soil organic carbon (SOC) decreases between 3 % and 9 % in degraded grasslands in tropical regions, mainly due to the absence of techniques to enhance carbon contribution to soils. This study assessed SOC stock change factors for grassland management, specific to the semi-arid region of Brazil. These factors may contribute to a better understanding of SOC dynamics and could be used to improve inventories on GHG emissions. In addition, they could be used for updating default factors used by the Intergovernmental Panel on Climate Change. This study considers both soil sampling and a literature review, and comprises 27 paired comparisons, where the dataset was analyzed using a mixed linear model. For the grassland in the Brazilian semi-arid region, the SOC stock is reduced by between 12 % and 27 % due to inadequate management, overgrazing, and edaphoclimatic conditions of the Brazilian semiarid. However, this depends on aspects, such as land use and soil layer, which represents substantially more severe losses than in other regions of the country. We also found that losses occur during the first five years after conversion of native vegetation. The results also indicateda trend for SOC stocks to recover over time, reaching 4 % after 30 years of use as grassland, probably related to the long period without soil tillage and the role of gramineas root system. |
Thesagro: |
Carbono; Matéria Orgânica; Pastagem; Solo. |
Thesaurus NAL: |
Carbon; Organic matter; Soil. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/220073/1/Losses-and-gains.pdf
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Marc: |
LEADER 02085naa a2200253 a 4500 001 2129141 005 2021-01-08 008 2021 bl uuuu u00u1 u #d 022 $a1678-992X 100 1 $aMEDEIROS, A. de S. 245 $aLosses and gains of soil organic carbon in grasslands in the Brazilian semi-arid region.$h[electronic resource] 260 $c2021 520 $aStudies show that soil organic carbon (SOC) decreases between 3 % and 9 % in degraded grasslands in tropical regions, mainly due to the absence of techniques to enhance carbon contribution to soils. This study assessed SOC stock change factors for grassland management, specific to the semi-arid region of Brazil. These factors may contribute to a better understanding of SOC dynamics and could be used to improve inventories on GHG emissions. In addition, they could be used for updating default factors used by the Intergovernmental Panel on Climate Change. This study considers both soil sampling and a literature review, and comprises 27 paired comparisons, where the dataset was analyzed using a mixed linear model. For the grassland in the Brazilian semi-arid region, the SOC stock is reduced by between 12 % and 27 % due to inadequate management, overgrazing, and edaphoclimatic conditions of the Brazilian semiarid. However, this depends on aspects, such as land use and soil layer, which represents substantially more severe losses than in other regions of the country. We also found that losses occur during the first five years after conversion of native vegetation. The results also indicateda trend for SOC stocks to recover over time, reaching 4 % after 30 years of use as grassland, probably related to the long period without soil tillage and the role of gramineas root system. 650 $aCarbon 650 $aOrganic matter 650 $aSoil 650 $aCarbono 650 $aMatéria Orgânica 650 $aPastagem 650 $aSolo 700 1 $aMAIA, S. M. F. 700 1 $aSANTOS, T. C. dos 700 1 $aGOMES, T. C. de A. 773 $tScientia Agricola$gv.78, n.3, e20190076, 2021.
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