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| 4. |  | SILVA, D. M. da; ALMEIDA, A. S. de; GUIDUCCI FILHO, E.; CAPORAL, F. R. Extensão rural. In: HENZ, G. P.; ALCÂNTARA, F. A. de; RESENDE, F. V. (Ed). Produção orgânica de hortaliças: o produtor pergunta, a Embrapa responde. Brasília, DF: Embrapa Informações Técnologicas, 2007. p. 285-294. (Coleção 500 perguntas, 500 respostas).| Biblioteca(s): Embrapa Hortaliças. |
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| 7. | | SILVA, R.; MANOSSO, O.; PADOVAN, M. P.; SAGRILO, E.; ALMEIDA, A. S. de; LOBO, P. M. Sistema agroflorestal no Assentamento Itamarati: um instrumento pedagógico para a construção do conhecimento em agroecologia. In: SEMINÁRIO DE AGROECOLOGIA DE MATO GROSSO DO SUL, 2., 2008, Dourados. A construção participativa da agroecologia em Mato Grosso do Sul: anais. Dourados: Embrapa Agropecuária Oeste, 2008. 1 CD-ROM.| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 10. | | ALMEIDA, A. S. de; SOUZA, D. D. de; SANTOS, L. G.; SAMPAIO NETO, A.; LIMA, J. R. F. de. O protagonismo de mulheres na cooperativa agropecuária familiar de Canudos, Uauá e Curaçá-BA (Coopercuc). In: SOUZA, M. M. A. de; DINIZ, L. F. A. C.; SILVA, J. C. S.; CLEMENTINO, V. D. R.; FIGUEIREDO NETO, A. Desenvolvimento do semiárido: organizações, gestão, inovação & empreendedorismo. Belo Horizonte: Poisson, 2021. v. 2 cap. 3, p. 31-45| Biblioteca(s): Embrapa Semiárido. |
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| 11. | | COSTA, R. de C. do N.; ALMEIDA, A. S. de; OLIVEIRA, C. H. A. de; SILVA, L. M. da; ARAÚJO, E. A. de. Avaliação de métodos de determinação da densidade em solos de diferentes atividades da fração argila (TA e TB) do município de Rio Branco, Estado do Acre. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA PIBIC/PIBITI EMBRAPA ACRE, 1., 2013, Rio Branco, AC. Anais... Rio Branco, AC: Embrapa Acre, 2013. 6 p.| Biblioteca(s): Embrapa Acre. |
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| 12. | | VIEIRA, I. C. G.; ALMEIDA, A. S. de; DAVIDSON, E. A.; STONE, T. A.; CARVALHO, C. J. R. de; GUERRERO, J. B. Classifying successional forests using landsat spectral properties and ecological characteristics in eastern Amazônia. Remote Sensing of Environment, v. 87, n. 4, p. 470-481, 2003. il.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 13. | | ALMEIDA, A. S. de; VIEIRA, I. C. G.; DAVIDSON, E. A.; STONE, T. A.; CARVALHO, C. J. R. de; GUERRERO, J. B. Classifying successional forests using landsat spectral properties and ecological characteristics to evaluate recent trends in land cover and carbon loss in eastern Amazonia. In: CONFERÊNCIA CIENTÍFICA INTERNACIONAL DO LBA, 2., 2002, Manaus. Resumos. Manaus: LBA, 2002. Não paginado.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 14. | | BASTOS, E. B. B.; BARRETO, I. C.; ALMEIDA, A. S. de; NUNES, R. de S.; TEODORO, A. V.; SENA FILHO, J. G. de. Determinação da atividade acaricida e repelência do óleo essencial de Vitex gardineriana em sistemas microemulsionados para o controle do ácaro-da-necrosedo coqueiro Aceria guerreronis. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA E PÓS-GRADUAÇÃO DA EMBRAPA TABULEIROS COSTEIROS, 9., 2019, Aracaju. Anais... Aracaju: Embrapa Tabuleiros Costeiros; Brasília, DF: Embrapa, 2019. Editor Técnico: Ronaldo Souza Resende. p. 30. Resumo.| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 15. | | PADOVAN, M. P.; ROSCOE, R.; ALMEIDA, A. S. de; ARMANDO, M. S.; MIRANDA, D. de; RANGEL, M. A. S.; URCHEI, M. A. Experiências com sistemas agroflorestais diversificados no Centro-Sul de Mato Grosso do Sul. In: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 7., 2009, Luziânia. Diálogo e integração de saberes em sistemas agroflorestais para sociedades sustentáveis: anais. [Luziânia]: Sociedade Brasileira de Sistemas Agroflorestais; [Brasília, DF]: EMATER-DF: Embrapa, 2009. 1 CD-ROM.| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 16. | | PADOVAN, M. P.; ROSCOE, R.; ALMEIDA, A. S. de; ARMANDO, M. S.; MIRANDA, D. de; RANGEL, M. A. S.; URCHEI, M. A. Experiências com sistemas agroflorestais diversificados no Centro-Sul de Mato Grosso do Sul. In: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 7., 2009, Luziânia. Diálogo e integração de saberes em sistemas agroflorestais para sociedades sustentáveis: anais. [Luziânia]: Sociedade Brasileira de Sistemas Agroflorestais; [Brasília, DF]: EMATER-DF: Embrapa, 2009.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 17. | | ALMEIDA, A. S. de; COELHO, C. R.; SA, M. S. de; BENTO, E. de S.; WISNIEWSKI JUNIOR, A.; TEODORO, A. V.; XAVIER, H. S.; SENA FILHO, J. G. de. Biomonitoring the Vitex gardneriana Shauer (Lamiaceae) toxic effects to shed light on bioactive compounds against a major coconut pest mite. American Journal of Plant Sciences, v. 12, p. 1601-1612, 2021.| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 18. | | SILVA, L. M. da; COSTA, R. de K. do N.; ALMEIDA, A. S. de; OLIVEIRA, C. H. A. de; ARAÚJO, E. A. de; TAVARES, O. C. H.; PEREIRA, M. G.; SANTOS, O. A. Q. dos. Avaliação de métodos de determinação da densidade de solo em amostras com diferentes atividades da fração argila coletadas no município de Rio Branco, estado do Acre. Rio Branco, AC: Embrapa Acre, 2020. 21 p. (Embrapa Acre. Boletim de pesquisa e desenvolvimento, 62). Selo ODS 15.| Biblioteca(s): Embrapa Acre. |
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| 19. | | RANGEL, M. A. S.; LOUREIRO, E. de S.; ALMEIDA, A. S. de; ALVES, H. de C.; ONO, F. B.; LOBO, P. M.; MARIANI, M. A.; PESSOA, L. G. A.; SILVA, A. J. da S. Avaliação participativa do controle de cigarrinhas das pastagens com a aplicação do fungo Metarhizium anisopliae (Metsch.) Sorok. In: CONGRESSO BRASILEIRO DE AGROECOLOGIA, 5., 2007, Guarapari. Guarapari: Associação Brasileira de Agroecologia, 2007. Trabalho/RBA - 2007 - 1144| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 20. | | SILVA, D. A. S. da; FERREIRA, R. L. C.; GUEDES, M. C.; SOUSA, C. S. C. de; LIMA, R. B. de; ALMEIDA, A. S. de; SILVA, E. F. da. Cost of opportunity: economic competitiveness of community forest management by land use. Nativa, v. 5, n. 4, p. 277-282, jul./ago. 2017.| Biblioteca(s): Embrapa Amapá. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
08/07/2005 |
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Data da última atualização: |
30/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
VIEIRA, I. C. G.; ALMEIDA, A. S. de; DAVIDSON, E. A.; STONE, T. A.; CARVALHO, C. J. R. de; GUERRERO, J. B. |
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Afiliação: |
IMA CÉLIA G. VIEIRA, MPEG; ARLETE SILVA DE ALMEIDA, MPEG; ERIC A. DAVIDSON, The Woods Hole Research Center; THOMAS A. STONE, The Woods Hole Research Center; CLAUDIO JOSE REIS DE CARVALHO, CPATU; JOSÉ BENITO GUERRERO, Instituto de Pesquisa Ambiental da Amazônia. |
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Título: |
Classifying successional forests using landsat spectral properties and ecological characteristics in eastern Amazônia. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Remote Sensing of Environment, v. 87, n. 4, p. 470-481, 2003. |
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Descrição Física: |
il. |
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DOI: |
http://dx.doi.org/10.1016/j.rse.2002.09.002 |
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Idioma: |
Inglês |
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Conteúdo: |
Secondary forests may become increasingly important as temporary reservoirs of genetic diversity, stocks of carbon and nutrients, and moderators of hydrologic cycles in the Amazon Basin as agricultural lands are abandoned and often later cleared again for agriculture. We studied a municipality in northeastern Pará, Brazil, that has been settled for over a century and where numerous cycles of slash and burn agriculture have occurred. The forests were grouped into young (3?6 years), intermediate (10?20 years), advanced (40?70 years), and mature successional stages using 1999 Landsat 7 ETM imagery. Supervised classification of the imagery showed that these forest classes occupied 22%, 13%, 9%, and 6% of the area, respectively. Although this area underwent widespread deforestation many decades ago, forest of some type covers about 50% of the area. Row crops, tree crops, and pastures cover 8%, 20%, and 22%, respectively. The best separation among land covers appeared in a plot of NDVI versus band 5 reflectance. The same groupings of successional forests were derived independently from indices of similarity among tree species composition. Measured distributions of tree height and diameter also covaried with these successional classes, with the young forests having nearly uniform distributions, whereas multiple height and diameter classes were present in the advanced successional forests. Biomass accumulated more slowly in this secondary forest chronosequence than has been reported for other areas, which explains why the 70-year-old forests here were still distinguishable from mature forests using spectral properties. Rates of forest regrowth may vary across regions due to differences in edaphic, climatic, and historical land-use factors, thus rendering most relationships among spectral properties and forest age site-specific. Successional status, as characterized by species composition, biomass, and distributions of heights and diameters, may be superior to stand age as a means of stratifying these forests for characterization of spectral properties. MenosSecondary forests may become increasingly important as temporary reservoirs of genetic diversity, stocks of carbon and nutrients, and moderators of hydrologic cycles in the Amazon Basin as agricultural lands are abandoned and often later cleared again for agriculture. We studied a municipality in northeastern Pará, Brazil, that has been settled for over a century and where numerous cycles of slash and burn agriculture have occurred. The forests were grouped into young (3?6 years), intermediate (10?20 years), advanced (40?70 years), and mature successional stages using 1999 Landsat 7 ETM imagery. Supervised classification of the imagery showed that these forest classes occupied 22%, 13%, 9%, and 6% of the area, respectively. Although this area underwent widespread deforestation many decades ago, forest of some type covers about 50% of the area. Row crops, tree crops, and pastures cover 8%, 20%, and 22%, respectively. The best separation among land covers appeared in a plot of NDVI versus band 5 reflectance. The same groupings of successional forests were derived independently from indices of similarity among tree species composition. Measured distributions of tree height and diameter also covaried with these successional classes, with the young forests having nearly uniform distributions, whereas multiple height and diameter classes were present in the advanced successional forests. Biomass accumulated more slowly in this secondary forest chronosequence than has been reported... Mostrar Tudo |
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Thesagro: |
Biodiversidade; Biomassa; Desmatamento; Ecologia Florestal; Floresta Secundaria; Sensoriamento Remoto. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
-- |
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Marc: |
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008 2003 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.rse.2002.09.002$2DOI
100 1 $aVIEIRA, I. C. G.
245 $aClassifying successional forests using landsat spectral properties and ecological characteristics in eastern Amazônia.$h[electronic resource]
260 $c2003
300 $cil.
520 $aSecondary forests may become increasingly important as temporary reservoirs of genetic diversity, stocks of carbon and nutrients, and moderators of hydrologic cycles in the Amazon Basin as agricultural lands are abandoned and often later cleared again for agriculture. We studied a municipality in northeastern Pará, Brazil, that has been settled for over a century and where numerous cycles of slash and burn agriculture have occurred. The forests were grouped into young (3?6 years), intermediate (10?20 years), advanced (40?70 years), and mature successional stages using 1999 Landsat 7 ETM imagery. Supervised classification of the imagery showed that these forest classes occupied 22%, 13%, 9%, and 6% of the area, respectively. Although this area underwent widespread deforestation many decades ago, forest of some type covers about 50% of the area. Row crops, tree crops, and pastures cover 8%, 20%, and 22%, respectively. The best separation among land covers appeared in a plot of NDVI versus band 5 reflectance. The same groupings of successional forests were derived independently from indices of similarity among tree species composition. Measured distributions of tree height and diameter also covaried with these successional classes, with the young forests having nearly uniform distributions, whereas multiple height and diameter classes were present in the advanced successional forests. Biomass accumulated more slowly in this secondary forest chronosequence than has been reported for other areas, which explains why the 70-year-old forests here were still distinguishable from mature forests using spectral properties. Rates of forest regrowth may vary across regions due to differences in edaphic, climatic, and historical land-use factors, thus rendering most relationships among spectral properties and forest age site-specific. Successional status, as characterized by species composition, biomass, and distributions of heights and diameters, may be superior to stand age as a means of stratifying these forests for characterization of spectral properties.
650 $aAmazonia
650 $aBiodiversidade
650 $aBiomassa
650 $aDesmatamento
650 $aEcologia Florestal
650 $aFloresta Secundaria
650 $aSensoriamento Remoto
700 1 $aALMEIDA, A. S. de
700 1 $aDAVIDSON, E. A.
700 1 $aSTONE, T. A.
700 1 $aCARVALHO, C. J. R. de
700 1 $aGUERRERO, J. B.
773 $tRemote Sensing of Environment$gv. 87, n. 4, p. 470-481, 2003.
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