| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Territorial. |
|
Data corrente: |
04/10/2011 |
|
Data da última atualização: |
03/05/2019 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso |
|
Autoria: |
BEUCHLE, R.; EVA, H. D.; MIRANDA, E. E. de; HOLLER, W. A.; OSHIRO, O. T.; ACHARD, F. |
|
Afiliação: |
RENÉ BEUCHLE, JOINT RESEARCH CENTRE OF THE EUROPEAN COMMISSION; HUGH DOUGLAS EVA, JOINT RESEARCH CENTRE OF THE EUROPEAN COMMISSION; EVARISTO EDUARDO DE MIRANDA, CNPM; WILSON ANDERSON HOLLER, CNPM; OSVALDO TADATOMO OSHIRO, CNPM; FRÉDERIC ACHARD, JOINT RESEARCH CENTRE OF THE EUROPEAN COMMISSION. |
|
Título: |
Global tropical forest cover change assessment with medium spatial stellite imagery using a systematic sample grid - data, methods and first results. |
|
Ano de publicação: |
2011 |
|
Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 15., 2011, Curitiba. Anais... São José dos Campos: INPE, 2011. |
|
Páginas: |
p. 2981-2988. |
|
Idioma: |
Português |
|
Conteúdo: |
At the Joint Research Centre (JRC) of the European Commission, a methodology has been developed to monitor the pan-tropical forest cover with remote sensing data for the years 1990-2000-2005 in Latin America, Southeast Asia and Africa on the basis of over 4000 sample units sample units with a dimension of 20 km by 20 km located at every full latitude and longitude degree confluence. From the Landsat Thematic Mapper (TM) and Enhanced Thematic Mapper (ETM) instruments, images with low cloud impact from the epochs around the years 1990, 2000 and 2005 were selected and subsets covering the sample units were cut-out, pre-processed, segmented and classified in five different land cover classes in order to build global and regional statistics on tropical forest cover change. The data was validated in three steps, internal correction of wrongly classified objects, external (national or regional) expert validation and internal harmonization of the data. In this paper, the data collection and the workflow of the forest cover change assessment for the epochs 1990 and 2000 is presented. Parts of the results for the Brazilian Amazon have been validated by comparing with interpretations of corresponding samples carried out by the Instituto Nacional de Pesquisas Espaciais (INPE), showing a very high correlation. Further, the figure produced by INPE through the PRODES program on gross deforestation for the years 1990-2000 was compared to the figure calculated on basis of the JRC results for the respective area, where the JRC estimate that was ca. 10% higher than the INPE estimate. MenosAt the Joint Research Centre (JRC) of the European Commission, a methodology has been developed to monitor the pan-tropical forest cover with remote sensing data for the years 1990-2000-2005 in Latin America, Southeast Asia and Africa on the basis of over 4000 sample units sample units with a dimension of 20 km by 20 km located at every full latitude and longitude degree confluence. From the Landsat Thematic Mapper (TM) and Enhanced Thematic Mapper (ETM) instruments, images with low cloud impact from the epochs around the years 1990, 2000 and 2005 were selected and subsets covering the sample units were cut-out, pre-processed, segmented and classified in five different land cover classes in order to build global and regional statistics on tropical forest cover change. The data was validated in three steps, internal correction of wrongly classified objects, external (national or regional) expert validation and internal harmonization of the data. In this paper, the data collection and the workflow of the forest cover change assessment for the epochs 1990 and 2000 is presented. Parts of the results for the Brazilian Amazon have been validated by comparing with interpretations of corresponding samples carried out by the Instituto Nacional de Pesquisas Espaciais (INPE), showing a very high correlation. Further, the figure produced by INPE through the PRODES program on gross deforestation for the years 1990-2000 was compared to the figure calculated on basis of the JRC results for... Mostrar Tudo |
|
Palavras-Chave: |
Object-based classification; Tropical forest cover. |
|
Thesaurus Nal: |
Landsat; monitoring. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/42854/1/Miranda-SBSR.pdf
|
|
Marc: |
LEADER 02365nam a2200229 a 4500
001 1902317
005 2019-05-03
008 2011 bl uuuu u00u1 u #d
100 1 $aBEUCHLE, R.
245 $aGlobal tropical forest cover change assessment with medium spatial stellite imagery using a systematic sample grid - data, methods and first results.
260 $aIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 15., 2011, Curitiba. Anais... São José dos Campos: INPE$c2011
300 $ap. 2981-2988.
520 $aAt the Joint Research Centre (JRC) of the European Commission, a methodology has been developed to monitor the pan-tropical forest cover with remote sensing data for the years 1990-2000-2005 in Latin America, Southeast Asia and Africa on the basis of over 4000 sample units sample units with a dimension of 20 km by 20 km located at every full latitude and longitude degree confluence. From the Landsat Thematic Mapper (TM) and Enhanced Thematic Mapper (ETM) instruments, images with low cloud impact from the epochs around the years 1990, 2000 and 2005 were selected and subsets covering the sample units were cut-out, pre-processed, segmented and classified in five different land cover classes in order to build global and regional statistics on tropical forest cover change. The data was validated in three steps, internal correction of wrongly classified objects, external (national or regional) expert validation and internal harmonization of the data. In this paper, the data collection and the workflow of the forest cover change assessment for the epochs 1990 and 2000 is presented. Parts of the results for the Brazilian Amazon have been validated by comparing with interpretations of corresponding samples carried out by the Instituto Nacional de Pesquisas Espaciais (INPE), showing a very high correlation. Further, the figure produced by INPE through the PRODES program on gross deforestation for the years 1990-2000 was compared to the figure calculated on basis of the JRC results for the respective area, where the JRC estimate that was ca. 10% higher than the INPE estimate.
650 $aLandsat
650 $amonitoring
653 $aObject-based classification
653 $aTropical forest cover
700 1 $aEVA, H. D.
700 1 $aMIRANDA, E. E. de
700 1 $aHOLLER, W. A.
700 1 $aOSHIRO, O. T.
700 1 $aACHARD, F.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Territorial (CNPM) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Meio Ambiente. |
|
Data corrente: |
19/03/1996 |
|
Data da última atualização: |
30/07/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
VALARINI, P. J. |
|
Afiliação: |
PEDRO JOSE VALARINI, CNPMA. |
|
Título: |
Efeito do tratamento de sementes de arroz (Oryza sativa L.) com diferentes níveis de infecção por Helminthosporium oryzae sobre a emergência e ataque de pós emergência. |
|
Ano de publicação: |
1987 |
|
Fonte/Imprenta: |
Summa Phytopathologica, v.13, n.1-2, p.15, jan./jun. 1987. |
|
Idioma: |
Português |
|
Conteúdo: |
Amostras de sementes de arroz da cultivar IAC-25 com niveis de infeccao por Helminthosporium oryzae variando 12,5 a 69,5% foram tratadas com os fungicidas quintozone 75 PM , 300g do produto por 100 Kg de sementes e iprodione + thiram (20 PM + 60 PS) 250g, visando estabelecer o nivel de infeccao de sementes a partir do qual se justifica o tratamento. Os resultados mostraram que a partir de 14,5% de infeccao o tratamento reduziu significantemente a infeccao de sementes. A partir desse nivel houve elevacao significativa da emergencia fazendo, porem, excecao os niveis de 21,5 e 22,5%. Houve reducao significativa de sintomas de pos-emergencia em todos os niveis com a mistura iprodine + thiram, enquanto que com quintozone foi observada reducao em apenas alguns que embora nao se tenha observado efeito do tratamento de sementes com 21,5 e 22,5% de infeccao, os efeitos sobre a emergencia a partir de 14,5% e a presenca de sintomas a partir de baixos niveis de infeccao. |
|
Palavras-Chave: |
Fungicidas; Post emergence; Seed; Sementes; Treatment. |
|
Thesagro: |
Arroz; Emergência; Helminthosporium Oryzae; Infecção; Tratamento. |
|
Thesaurus NAL: |
fungicides; infection; rice. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01779naa a2200277 a 4500
001 1012447
005 2021-07-30
008 1987 bl uuuu u00u1 u #d
100 1 $aVALARINI, P. J.
245 $aEfeito do tratamento de sementes de arroz (Oryza sativa L.) com diferentes níveis de infecção por Helminthosporium oryzae sobre a emergência e ataque de pós emergência.
260 $c1987
520 $aAmostras de sementes de arroz da cultivar IAC-25 com niveis de infeccao por Helminthosporium oryzae variando 12,5 a 69,5% foram tratadas com os fungicidas quintozone 75 PM , 300g do produto por 100 Kg de sementes e iprodione + thiram (20 PM + 60 PS) 250g, visando estabelecer o nivel de infeccao de sementes a partir do qual se justifica o tratamento. Os resultados mostraram que a partir de 14,5% de infeccao o tratamento reduziu significantemente a infeccao de sementes. A partir desse nivel houve elevacao significativa da emergencia fazendo, porem, excecao os niveis de 21,5 e 22,5%. Houve reducao significativa de sintomas de pos-emergencia em todos os niveis com a mistura iprodine + thiram, enquanto que com quintozone foi observada reducao em apenas alguns que embora nao se tenha observado efeito do tratamento de sementes com 21,5 e 22,5% de infeccao, os efeitos sobre a emergencia a partir de 14,5% e a presenca de sintomas a partir de baixos niveis de infeccao.
650 $afungicides
650 $ainfection
650 $arice
650 $aArroz
650 $aEmergência
650 $aHelminthosporium Oryzae
650 $aInfecção
650 $aTratamento
653 $aFungicidas
653 $aPost emergence
653 $aSeed
653 $aSementes
653 $aTreatment
773 $tSumma Phytopathologica$gv.13, n.1-2, p.15, jan./jun. 1987.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Meio Ambiente (CNPMA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
