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Registro Completo |
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
08/01/2021 |
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Data da última atualização: |
08/01/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MEDEIROS, A. de S.; MAIA, S. M. F.; SANTOS, T. C. dos; GOMES, T. C. de A. |
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Afiliação: |
ALADAIR DE SOUZA MEDEIROS; STOECIO MALTA FERREIRA MAIA; THIAGO CANDIDO DOS SANTOS; TAMARA CLAUDIA DE ARAUJO GOMES, CPATC. |
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Título: |
Losses and gains of soil organic carbon in grasslands in the Brazilian semi-arid region. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Scientia Agricola, v.78, n.3, e20190076, 2021. |
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ISSN: |
1678-992X |
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Idioma: |
Inglês |
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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. |
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Thesagro: |
Carbono; Matéria Orgânica; Pastagem; Solo. |
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Thesaurus Nal: |
Carbon; Organic matter; Soil. |
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Categoria do assunto: |
-- |
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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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Registro original: |
Embrapa Tabuleiros Costeiros (CPATC) |
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Registro |
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URL |
Voltar
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
06/04/2016 |
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Data da última atualização: |
04/11/2016 |
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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: |
WITTER, R.; MARTINS, T. F.; CAMPOS, A. K.; MELO, A. L. T.; CORREA, S. H. R.; MORGADO, T. O.; WOLF, R. W.; MAY JUNIOR, J. A.; STRUSSMANNE, C.; AGUIAR, D. M.; ROSSI, R. V.; SEMEDO, T. B. F.; CAMPOS, Z.; DESBIEZ, A. L. J.; LABRUNA, M. B.; PACHECO, R. C. |
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Afiliação: |
Rute Witter, Universidade Federal de Mato Grosso; Thiago F. Martins, Universidade de São Paulo; Artur K. Campos, Universidade Federal de Viçosa; Andréia L.T. Melo, Universidade Federal de Mato Grosso; Sandra H. R. Corrêa, Universidade Federal de Mato Grosso; Thaís O. Morgado, Universidade Federal de Mato Grosso; Rafael W. Wolf, Universidade Federal de Mato Grosso; Joares A. May-Júnior, Universidade do Sul de Santa Catarina; Christine Strüssmanne, Universidade Federal de Mato Grosso; Daniel M. Aguiar, Universidade Federal de Mato Grosso; Rogério V. Rossi, Universidade Federal de Mato Grosso; Thiago B. F. Semedo, Universidade Federal de Mato Grosso; ZILCA MARIA DA SILVA CAMPOS, CPAP; Arnaud L. J. Desbiez, Royal Zoological Society of Scotland; Marcelo B. Labruna, Universidade de São Paulo; Richard C. Pacheco, Universidade Federal de Mato Grosso. |
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Título: |
Rickettsial infection in ticks (Acari:Ixodidae) of wild animals in midwestern Brazil. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Ticks and Tick-borne Diseases, v. 7, p. 415-423, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Ticks collected in the last two decades from free-living and captive wild animals from 28 municipalities of the Brazilian state of Mato Grosso were identified and tested using molecular methods for the presence of rickettsial agents. A total of 4467 ticks (229 larvae, 1676 nymphs, 1565 males, 997 females) represent-ing 27 ixodid species were collected from 235 species of amphibians, reptiles, birds, and mammals from three different ecoregions (Pantanal, Cerrado, and Amazonia). The species Amblyomma parkeri, Ambly-omma romitii, Amblyomma varium and Ixodes luciae are reported for the first time in the state of Mato Grosso. Amongst 538 ticks tested by molecular methods for rickettsial infection, we detected ?Candidatus Rickettsia amblyommii infecting Amblyomma cajennense sensu stricto and Amblyomma coelebs, Rickettsia sp. strain Atlantic rainforest infecting Amblyomma ovale, Rickettsia sp. strain NOD infecting Amblyomma nodosum, and ?Candidatus Rickettsia andeanae infecting Amblyomma sculptum. Our results represent an impressive expansion of knowledge on tick fauna and rickettsiae and are essential for understanding the ecology of ticks and tick-borne diseases in the Neotropical region, particularly in midwestern Brazil. |
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Thesagro: |
Carrapato; Cerrado; Parasito de animal. |
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Thesaurus NAL: |
Pantanal; Tick infestations; Ticks. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02229naa a2200373 a 4500
001 2042683
005 2016-11-04
008 2016 bl uuuu u00u1 u #d
100 1 $aWITTER, R.
245 $aRickettsial infection in ticks (Acari$bIxodidae) of wild animals in midwestern Brazil.
260 $c2016
520 $aTicks collected in the last two decades from free-living and captive wild animals from 28 municipalities of the Brazilian state of Mato Grosso were identified and tested using molecular methods for the presence of rickettsial agents. A total of 4467 ticks (229 larvae, 1676 nymphs, 1565 males, 997 females) represent-ing 27 ixodid species were collected from 235 species of amphibians, reptiles, birds, and mammals from three different ecoregions (Pantanal, Cerrado, and Amazonia). The species Amblyomma parkeri, Ambly-omma romitii, Amblyomma varium and Ixodes luciae are reported for the first time in the state of Mato Grosso. Amongst 538 ticks tested by molecular methods for rickettsial infection, we detected ?Candidatus Rickettsia amblyommii infecting Amblyomma cajennense sensu stricto and Amblyomma coelebs, Rickettsia sp. strain Atlantic rainforest infecting Amblyomma ovale, Rickettsia sp. strain NOD infecting Amblyomma nodosum, and ?Candidatus Rickettsia andeanae infecting Amblyomma sculptum. Our results represent an impressive expansion of knowledge on tick fauna and rickettsiae and are essential for understanding the ecology of ticks and tick-borne diseases in the Neotropical region, particularly in midwestern Brazil.
650 $aPantanal
650 $aTick infestations
650 $aTicks
650 $aCarrapato
650 $aCerrado
650 $aParasito de animal
700 1 $aMARTINS, T. F.
700 1 $aCAMPOS, A. K.
700 1 $aMELO, A. L. T.
700 1 $aCORREA, S. H. R.
700 1 $aMORGADO, T. O.
700 1 $aWOLF, R. W.
700 1 $aMAY JUNIOR, J. A.
700 1 $aSTRUSSMANNE, C.
700 1 $aAGUIAR, D. M.
700 1 $aROSSI, R. V.
700 1 $aSEMEDO, T. B. F.
700 1 $aCAMPOS, Z.
700 1 $aDESBIEZ, A. L. J.
700 1 $aLABRUNA, M. B.
700 1 $aPACHECO, R. C.
773 $tTicks and Tick-borne Diseases$gv. 7, p. 415-423, 2016.
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Embrapa Pantanal (CPAP) |
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