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Registro Completo |
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
13/03/2008 |
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Data da última atualização: |
22/08/2014 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
FERREIRA, J.; BATISTELLA, M. |
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Afiliação: |
Joice Ferreira (Embrapa Amazônia Oriental); Mateus Batistella (Embrapa Monitoramento por Satélite). |
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Título: |
Carbon sequestration by secondary forests at small farms along the Transamazon highway. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: CONFERÊNCIA REGIONAL SOBRE MUDANÇAS GLOBAIS: AMÉRICA DO SUL, 3., 2007. São Paulo. Resumos... São Paulo: IEA Instituto de Estudos Avançados da Universidade de São Paulo, 2007. |
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Páginas: |
1 p. |
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Idioma: |
Português |
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Conteúdo: |
Secondary tropical forest regrowth in abandoned agricultural areas is becoming a key element in the mitigation of global and regional climate change. In this study we focus on estimating the total aboveground biomass stored in secondary forests of distinct successional stages, following traditional cultivation by smallholders settled along the Transamazon highway, in Pará, Brazil. The study site is one of the several areas in the Amazon region assisted by the Brazilian government program called "Proambiente". Different actions have been developed by Proambiente wit the overall objective of conserving natural resources while enhancing sustainable production systems. In this study, ten small farms were investigated. Each area was georeferenced and land cover was classified based on Landsat TM images. Land use histories were obtained from interviews with the farmers. Eleven secondary forest patches with areas larger than 5ha were classified as initial or advanced stages, according to their structural attributes. A matere forest site was also studied for comparison. Three nested plots were established for each sampled area (i.e., squares of 10 x 10m, 3 x 3, and 1 x 1m). Aboveground biomass was estimated by a general model for the 573 stems measured in diameter and height. Altrough general models may present limitations, they can be useful as a first a approximation in the broad perspective of our study. Mean aboveground biomass was estimated as 45Mg ha-1 (SD=27) for forests in the initial successional stage and 100Mg ha-1 (SD=60) for forests in the advanced successional stage. Simulations for hypothetical farms with total area of 100ha showed a potential carbon sequestration varying from 937 tons of carbon (12.5% of the area with forests in the initial and 12.5% in the advanced stage) to 125 tons of carbon (5% of the area with successional forest in the initial stage). More than creating expectations towards a successful scenario of a global carbon market, these results can contribute to an assessment of environmental services provided by secondary forests in the Brazilian Amazon. MenosSecondary tropical forest regrowth in abandoned agricultural areas is becoming a key element in the mitigation of global and regional climate change. In this study we focus on estimating the total aboveground biomass stored in secondary forests of distinct successional stages, following traditional cultivation by smallholders settled along the Transamazon highway, in Pará, Brazil. The study site is one of the several areas in the Amazon region assisted by the Brazilian government program called "Proambiente". Different actions have been developed by Proambiente wit the overall objective of conserving natural resources while enhancing sustainable production systems. In this study, ten small farms were investigated. Each area was georeferenced and land cover was classified based on Landsat TM images. Land use histories were obtained from interviews with the farmers. Eleven secondary forest patches with areas larger than 5ha were classified as initial or advanced stages, according to their structural attributes. A matere forest site was also studied for comparison. Three nested plots were established for each sampled area (i.e., squares of 10 x 10m, 3 x 3, and 1 x 1m). Aboveground biomass was estimated by a general model for the 573 stems measured in diameter and height. Altrough general models may present limitations, they can be useful as a first a approximation in the broad perspective of our study. Mean aboveground biomass was estimated as 45Mg ha-1 (SD=27) for forests in t... Mostrar Tudo |
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Palavras-Chave: |
Abivegriund biomass; Brazilian Amamon; Carbon storage; Environmental Services. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/107102/1/2060.pdf
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Marc: |
LEADER 02778nam a2200181 a 4500
001 1017639
005 2014-08-22
008 2007 bl uuuu u00u1 u #d
100 1 $aFERREIRA, J.
245 $aCarbon sequestration by secondary forests at small farms along the Transamazon highway.
260 $aIn: CONFERÊNCIA REGIONAL SOBRE MUDANÇAS GLOBAIS: AMÉRICA DO SUL, 3., 2007. São Paulo. Resumos... São Paulo: IEA Instituto de Estudos Avançados da Universidade de São Paulo$c2007
300 $a1 p.
520 $aSecondary tropical forest regrowth in abandoned agricultural areas is becoming a key element in the mitigation of global and regional climate change. In this study we focus on estimating the total aboveground biomass stored in secondary forests of distinct successional stages, following traditional cultivation by smallholders settled along the Transamazon highway, in Pará, Brazil. The study site is one of the several areas in the Amazon region assisted by the Brazilian government program called "Proambiente". Different actions have been developed by Proambiente wit the overall objective of conserving natural resources while enhancing sustainable production systems. In this study, ten small farms were investigated. Each area was georeferenced and land cover was classified based on Landsat TM images. Land use histories were obtained from interviews with the farmers. Eleven secondary forest patches with areas larger than 5ha were classified as initial or advanced stages, according to their structural attributes. A matere forest site was also studied for comparison. Three nested plots were established for each sampled area (i.e., squares of 10 x 10m, 3 x 3, and 1 x 1m). Aboveground biomass was estimated by a general model for the 573 stems measured in diameter and height. Altrough general models may present limitations, they can be useful as a first a approximation in the broad perspective of our study. Mean aboveground biomass was estimated as 45Mg ha-1 (SD=27) for forests in the initial successional stage and 100Mg ha-1 (SD=60) for forests in the advanced successional stage. Simulations for hypothetical farms with total area of 100ha showed a potential carbon sequestration varying from 937 tons of carbon (12.5% of the area with forests in the initial and 12.5% in the advanced stage) to 125 tons of carbon (5% of the area with successional forest in the initial stage). More than creating expectations towards a successful scenario of a global carbon market, these results can contribute to an assessment of environmental services provided by secondary forests in the Brazilian Amazon.
653 $aAbivegriund biomass
653 $aBrazilian Amamon
653 $aCarbon storage
653 $aEnvironmental Services
700 1 $aBATISTELLA, M.
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Registro original: |
Embrapa Territorial (CNPM) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
14/06/2022 |
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Data da última atualização: |
11/07/2022 |
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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: |
CHENARD, M. G.; VALLE, M. D.; CUNHA, I. M. da; ALENCAR, N. X. de; LESSA, D. A. B.; SOUZA, G. N. de; CUNHA, N. C. da; CARVALHO, V. de A. N.; CALDAS, S. A.; HELAYEL, M. A. |
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Afiliação: |
MARINA GALINDO CHENARD, Universidade Federal Fluminense; MATHEUS DIAS VALLE, Universidade Federal Fluminense; ISABELLE MAGALHÃES DA CUNHA, Universidade Federal Fluminense; NAYRO XAVIER DE ALENCAR, Universidade Federal Fluminense; DANIEL AUGUSTO BARROSO LESSA, Universidade Federal Fluminense; GUILHERME NUNES DE SOUZA, CNPGL; NATHALIE COSTA DA CUNHA, Universidade Federal Fluminense; VIVIAN DE ASSUNÇÃO NOGUEIRA CARVALHO, Universidade Federal Rural do Rio de Janeiro; SAULO ANDRADE CALDAS, Universidade Federal Rural do Rio de Janeiro; MICHEL ABDALLA HELAYEL, Universidade Federal Fluminense. |
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Título: |
Validation of a portable glucose meter in blood glucose measurement in normoglycemic goats induced to hypoglycemia and hyperglycemia. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Small Ruminant Research, v. 214, 106741, 2022. |
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DOI: |
https://doi.org/10.1016/j.smallrumres.2022.106741 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to evaluate the precision and reliability of a portable glucose meter (PGM) in the blood glucose measurement of goats, healthy and induced to hypoglycemia and hyperglycemia. Sixty normoglycemic, 15 hyperglycemic and 15 hypoglycemic goats were subjected to blood collections and the samples were analyzed within 2 hours after the collection through PGM and enzymatic method (EM). For each test, sensitivity, specificity, and area under ROC were evaluated for two cut points for hypoglycemia and hyperglycemia. PGM has high accuracy and precision in blood glucose measurements of goats, providing satisfactory and reliable results when compared to EM. |
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Palavras-Chave: |
Glicemia; Medidor portátil; Método enzimático. |
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Thesagro: |
Cabra; Glicose. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01609naa a2200301 a 4500
001 2144039
005 2022-07-11
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.smallrumres.2022.106741$2DOI
100 1 $aCHENARD, M. G.
245 $aValidation of a portable glucose meter in blood glucose measurement in normoglycemic goats induced to hypoglycemia and hyperglycemia.$h[electronic resource]
260 $c2022
520 $aThe objective of this work was to evaluate the precision and reliability of a portable glucose meter (PGM) in the blood glucose measurement of goats, healthy and induced to hypoglycemia and hyperglycemia. Sixty normoglycemic, 15 hyperglycemic and 15 hypoglycemic goats were subjected to blood collections and the samples were analyzed within 2 hours after the collection through PGM and enzymatic method (EM). For each test, sensitivity, specificity, and area under ROC were evaluated for two cut points for hypoglycemia and hyperglycemia. PGM has high accuracy and precision in blood glucose measurements of goats, providing satisfactory and reliable results when compared to EM.
650 $aCabra
650 $aGlicose
653 $aGlicemia
653 $aMedidor portátil
653 $aMétodo enzimático
700 1 $aVALLE, M. D.
700 1 $aCUNHA, I. M. da
700 1 $aALENCAR, N. X. de
700 1 $aLESSA, D. A. B.
700 1 $aSOUZA, G. N. de
700 1 $aCUNHA, N. C. da
700 1 $aCARVALHO, V. de A. N.
700 1 $aCALDAS, S. A.
700 1 $aHELAYEL, M. A.
773 $tSmall Ruminant Research$gv. 214, 106741, 2022.
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