| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
12/06/2015 |
|
Data da última atualização: |
27/01/2016 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso |
|
Autoria: |
COSTA, C. R. da; LUZ, N. B. da; ARAKI, H.; OLIVEIRA, Y. M. M. de; ROSOT, M. A. D.; GARRASTAZU, M. C.; KRUEGER, C. P. |
|
Afiliação: |
Clauber Rogério da Costa, UFPR; Naíssa Batista da Luz, ONU/FAO; Hideo Araki, UFPR; YEDA MARIA MALHEIROS DE OLIVEIRA, CNPF; MARIA AUGUSTA DOETZER ROSOT, CNPF; MARILICE CORDEIRO GARRASTAZU, CNPF; Claudia Pereira Krueger, UFPR. |
|
Título: |
Análise da exatidão cartográfica das imagens Rapideye adotadas no Inventário Florestal Nacional do Brasil (IFN-BR). |
|
Ano de publicação: |
2015 |
|
Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 17., 2015, João Pessoa. Anais... São José dos Campos: INPE, 2015. |
|
Páginas: |
p. 3289-3296. |
|
Descrição Física: |
Disponível online. |
|
Idioma: |
Português |
|
Conteúdo: |
The National Brazil's Forest Inventory (IFN-BR), conducted by the Brazilian Forest Service (SFB) with support from the FAO (Food and Agriculture Organization - UN) was established aiming to enable continuous monitoring of forest resources, providing information to support the definition of public policy and management and conservation of these resources. Embrapa Forestry in conjunction with the SFB and the FAO seeks to develop a methodology for landscape analysis in the context of IFN-BR. Both are being used for RapidEye images (level 3A) and tested different remote sensing techniques. In this context, this work aims at analyzing the geometric accuracy between 6 scenes acquired in 2011 and 2012. For both a field survey using GPS receivers monofrequency by the absolute method for precise point (PPP) was conducted and implemented a program in Matlab platform capable of calculating the parameters of displacement and the RMS (root mean square error) of each image relative to the ground. Are also calculated the means and variances of the displacements relative to the ground of the images of 2011 and 2012. |
|
Palavras-Chave: |
Análise cartográfica; Brasil; Imagem de satélite; Inventário Florestal Nacional; National Forest Inventory; Rapideye. |
|
Thesaurus Nal: |
accuracy; Brazil. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/125277/1/2015-Yeda-SBSR-AnaliseExatidao.pdf
|
|
Marc: |
LEADER 02083nam a2200289 a 4500
001 2017532
005 2016-01-27
008 2015 bl uuuu u00u1 u #d
100 1 $aCOSTA, C. R. da
245 $aAnálise da exatidão cartográfica das imagens Rapideye adotadas no Inventário Florestal Nacional do Brasil (IFN-BR).$h[electronic resource]
260 $aIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 17., 2015, João Pessoa. Anais... São José dos Campos: INPE$c2015
300 $ap. 3289-3296.$cDisponível online.
520 $aThe National Brazil's Forest Inventory (IFN-BR), conducted by the Brazilian Forest Service (SFB) with support from the FAO (Food and Agriculture Organization - UN) was established aiming to enable continuous monitoring of forest resources, providing information to support the definition of public policy and management and conservation of these resources. Embrapa Forestry in conjunction with the SFB and the FAO seeks to develop a methodology for landscape analysis in the context of IFN-BR. Both are being used for RapidEye images (level 3A) and tested different remote sensing techniques. In this context, this work aims at analyzing the geometric accuracy between 6 scenes acquired in 2011 and 2012. For both a field survey using GPS receivers monofrequency by the absolute method for precise point (PPP) was conducted and implemented a program in Matlab platform capable of calculating the parameters of displacement and the RMS (root mean square error) of each image relative to the ground. Are also calculated the means and variances of the displacements relative to the ground of the images of 2011 and 2012.
650 $aaccuracy
650 $aBrazil
653 $aAnálise cartográfica
653 $aBrasil
653 $aImagem de satélite
653 $aInventário Florestal Nacional
653 $aNational Forest Inventory
653 $aRapideye
700 1 $aLUZ, N. B. da
700 1 $aARAKI, H.
700 1 $aOLIVEIRA, Y. M. M. de
700 1 $aROSOT, M. A. D.
700 1 $aGARRASTAZU, M. C.
700 1 $aKRUEGER, C. P.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Pesca e Aquicultura. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
|
Data corrente: |
14/02/2019 |
|
Data da última atualização: |
14/02/2019 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
KOHMANN, M. M.; SOLLENBERGER, L. E.; DUBEUX JUNIOR, J. C. B.; SILVEIRA, M. L.; MORENO, L. S. B.; SILVA, L. S. da; ARYAL, P. |
|
Afiliação: |
MARTA M. KOHMANN, UNIVERSITY OF FLORIDA, Gainesville-FL; LYNN E. SOLLENBERGER, UNIVERSITY OF FLORIDA, Gainesville-FL; JOSE C. B. DUBEUX JUNIOR, UNIVERSITY OF FLORIDA, Marianna-FL; MARIA L. SILVEIRA, UNIVERSITY OF FLORIDA, Ona-FL; LEONARDO SIMOES DE BARROS MORENO, CNPASA; LILIANE S. DA SILVA, UNIVERSITY OF FLORIDA, Gainesville-FL; PARMESHWOR ARYAL, UNIVERSITY OF FLORIDA, Gainesville-FL. |
|
Título: |
Nitrogen fertilization and proportion of legume affect litter decomposition and nutrient return in grass pastures. |
|
Ano de publicação: |
2018 |
|
Fonte/Imprenta: |
Crop Science, v. 58, n. 5, p. 2138-2148, Sept./Oct. 2018. |
|
ISSN: |
0011-183X |
|
DOI: |
10.2135/cropsci2018.01.0028 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Warm-climate grasslands are often N limited. Legume litter decomposition can contribute significantly to N input in grazing systems, but its contribution depends on litter deposition, decomposition, and chemical composition. We evaluated these responses for 2 yr in unfertilized (BG) and fertilized (BGN; 50 kg N ha−1) bahiagrass (Paspalum notatum Flügge) monocultures and in mixed swards of bahiagrass plus the legume rhizoma peanut (Arachis glabrata Benth.). Legume?grass mixture litter had greater initial N concentration (26 g N kg−1 organic matter [OM]) and lower C/N ratio (22) than BG and BGN, which did not differ from each other (18 g N kg−1 OM, C/N ratio of 31). Litter biomass relative decay rate was greater for mixtures than for bahiagrass monocultures. As a result, less biomass and N remained at the end of incubation in mixtures (62 and 76%, respectively) than in monocultures (69 and 80%, respectively). Litter deposition rate was similar across treatments, but faster decomposition and greater N concentration for legume?grass mixtures resulted in larger litter N release than in monocultures (44 and 26 kg ha−1, respectively). At the end of incubation, remaining litter biomass and remaining N decreased with increasing litter legume proportion, whereas litter N concentration and litter decay rate increased. Results indicate that legume?grass mixtures are an alternative to N fertilizer for increasing N cycling through plant litter in grasslands, and although litter deposition rates were similar across treatments, increasing legume proportion in mixtures is likely to be associated with greater litter N release. MenosWarm-climate grasslands are often N limited. Legume litter decomposition can contribute significantly to N input in grazing systems, but its contribution depends on litter deposition, decomposition, and chemical composition. We evaluated these responses for 2 yr in unfertilized (BG) and fertilized (BGN; 50 kg N ha−1) bahiagrass (Paspalum notatum Flügge) monocultures and in mixed swards of bahiagrass plus the legume rhizoma peanut (Arachis glabrata Benth.). Legume?grass mixture litter had greater initial N concentration (26 g N kg−1 organic matter [OM]) and lower C/N ratio (22) than BG and BGN, which did not differ from each other (18 g N kg−1 OM, C/N ratio of 31). Litter biomass relative decay rate was greater for mixtures than for bahiagrass monocultures. As a result, less biomass and N remained at the end of incubation in mixtures (62 and 76%, respectively) than in monocultures (69 and 80%, respectively). Litter deposition rate was similar across treatments, but faster decomposition and greater N concentration for legume?grass mixtures resulted in larger litter N release than in monocultures (44 and 26 kg ha−1, respectively). At the end of incubation, remaining litter biomass and remaining N decreased with increasing litter legume proportion, whereas litter N concentration and litter decay rate increased. Results indicate that legume?grass mixtures are an alternative to N fertilizer for increasing N cycling through plant litter in grasslands, and al... Mostrar Tudo |
|
Thesagro: |
Biomassa; Decomposição; Fertilizante Nitrogenado; Nitrogênio; Pastagem. |
|
Thesaurus NAL: |
Grasslands; Nitrogen fertilizers; Nutrient requirements; Pastures; Plant litter. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
Marc: |
LEADER 02660naa a2200337 a 4500
001 2105968
005 2019-02-14
008 2018 bl uuuu u00u1 u #d
022 $a0011-183X
024 7 $a10.2135/cropsci2018.01.0028$2DOI
100 1 $aKOHMANN, M. M.
245 $aNitrogen fertilization and proportion of legume affect litter decomposition and nutrient return in grass pastures.$h[electronic resource]
260 $c2018
520 $aWarm-climate grasslands are often N limited. Legume litter decomposition can contribute significantly to N input in grazing systems, but its contribution depends on litter deposition, decomposition, and chemical composition. We evaluated these responses for 2 yr in unfertilized (BG) and fertilized (BGN; 50 kg N ha−1) bahiagrass (Paspalum notatum Flügge) monocultures and in mixed swards of bahiagrass plus the legume rhizoma peanut (Arachis glabrata Benth.). Legume?grass mixture litter had greater initial N concentration (26 g N kg−1 organic matter [OM]) and lower C/N ratio (22) than BG and BGN, which did not differ from each other (18 g N kg−1 OM, C/N ratio of 31). Litter biomass relative decay rate was greater for mixtures than for bahiagrass monocultures. As a result, less biomass and N remained at the end of incubation in mixtures (62 and 76%, respectively) than in monocultures (69 and 80%, respectively). Litter deposition rate was similar across treatments, but faster decomposition and greater N concentration for legume?grass mixtures resulted in larger litter N release than in monocultures (44 and 26 kg ha−1, respectively). At the end of incubation, remaining litter biomass and remaining N decreased with increasing litter legume proportion, whereas litter N concentration and litter decay rate increased. Results indicate that legume?grass mixtures are an alternative to N fertilizer for increasing N cycling through plant litter in grasslands, and although litter deposition rates were similar across treatments, increasing legume proportion in mixtures is likely to be associated with greater litter N release.
650 $aGrasslands
650 $aNitrogen fertilizers
650 $aNutrient requirements
650 $aPastures
650 $aPlant litter
650 $aBiomassa
650 $aDecomposição
650 $aFertilizante Nitrogenado
650 $aNitrogênio
650 $aPastagem
700 1 $aSOLLENBERGER, L. E.
700 1 $aDUBEUX JUNIOR, J. C. B.
700 1 $aSILVEIRA, M. L.
700 1 $aMORENO, L. S. B.
700 1 $aSILVA, L. S. da
700 1 $aARYAL, P.
773 $tCrop Science$gv. 58, n. 5, p. 2138-2148, Sept./Oct. 2018.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pesca e Aquicultura (CNPASA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
