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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
29/01/2008 |
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Data da última atualização: |
18/03/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
ARAÚJO FILHO, M. da C.; MENESES, P. R.; SANO, E. E. |
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Afiliação: |
MILTON DA COSTA ARAÚJO FILHO, UNIVERSIDADE DE BRASÍLIA; PAULO ROBERTO MENESES, UNIVERSIDADE DE BRASÍLIA; EDSON EYJI SANO, CPAC. |
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Título: |
Proposta de um sistema hierárquico de classificação de cobertura da terra baseado na análise de imagens de satélite. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 13., 2007, Florianópolis. Anais... São José dos Campos: INPE, 2007. p. 2291-2298. |
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Idioma: |
Português |
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Conteúdo: |
ABSTRACT -Land cover maps are essential to conduct programs of environmental monitoring, biodiversity conservation and land occupation. In Brazil, there are no specific rules to guide the development of such maps. Consequently, there is a tendency of each institution to create its own system to attend its specific needs. This study presents a new land cover classification system based on a single date, multispectral Landsat image and suitable for scales varying from 1.1,000,000 to 1:100,000. Visual image interpretation and field inspection allowed the identification of four spectral land cover classes at the 1:1,000,000 scale: water bodies, natural vegetation covers, planted vegetation covers, constructed surfaces and others. At the 1:500,000, 1:250,000 and 1:100,000 scales, these classes were splited into 10, 19 and 22 subclasses, respectively. Results showed that the Landsat imagery is useful for land cover mapping proposals in the exploratory, surveying and semidetailed levels |
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Palavras-Chave: |
Cobertura da terra; Sistema de classificação. |
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Thesagro: |
Sensoriamento Remoto. |
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Thesaurus Nal: |
Landsat; Remote sensing. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/570545/1/Proposta-sistema-hierarquico-2007.pdf
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Marc: |
LEADER 01697nam a2200193 a 4500
001 1570545
005 2023-03-18
008 2007 bl uuuu u00u1 u #d
100 1 $aARAÚJO FILHO, M. da C.
245 $aProposta de um sistema hierárquico de classificação de cobertura da terra baseado na análise de imagens de satélite.
260 $aIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 13., 2007, Florianópolis. Anais... São José dos Campos: INPE, 2007. p. 2291-2298.$c2298
520 $aABSTRACT -Land cover maps are essential to conduct programs of environmental monitoring, biodiversity conservation and land occupation. In Brazil, there are no specific rules to guide the development of such maps. Consequently, there is a tendency of each institution to create its own system to attend its specific needs. This study presents a new land cover classification system based on a single date, multispectral Landsat image and suitable for scales varying from 1.1,000,000 to 1:100,000. Visual image interpretation and field inspection allowed the identification of four spectral land cover classes at the 1:1,000,000 scale: water bodies, natural vegetation covers, planted vegetation covers, constructed surfaces and others. At the 1:500,000, 1:250,000 and 1:100,000 scales, these classes were splited into 10, 19 and 22 subclasses, respectively. Results showed that the Landsat imagery is useful for land cover mapping proposals in the exploratory, surveying and semidetailed levels
650 $aLandsat
650 $aRemote sensing
650 $aSensoriamento Remoto
653 $aCobertura da terra
653 $aSistema de classificação
700 1 $aMENESES, P. R.
700 1 $aSANO, E. E.
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Registro original: |
Embrapa Cerrados (CPAC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
18/11/2022 |
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Data da última atualização: |
23/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 4 |
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Autoria: |
REIS, H. P. G; GIROTO. A. S.; GUIMARÃES, G. G. F.; PUTTI, F. F.; PAVINATO, P. S.; TELES, A. P.; RIBEIRO, C.; FERNANDES, D. M. |
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Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
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Título: |
Role of slow-release phosphate nanofertilizers in forage nutrition and phosphorus lability. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
ACS Agricultural Science & Technology, v. 2, 2022. |
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Páginas: |
564–572 |
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DOI: |
10.1021/acsagscitech.2c00012 |
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Idioma: |
Inglês |
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Conteúdo: |
Up to 80% of the applied phosphorus via fertilizers can be lost to the environment through adsorption and precipitation reactions. Although nanoparticulated fertilizers can improve phosphate efficiency, they should be kept with no agglomeration, e.g., by dispersing urea (nanocomposite), which also provides nitrogen for plants. Thus, we evaluated the phosphorus dynamics in the soil and nutrient supply to Panicum maximum cv. ?BRS Zuri? (Zuri grass) through three model nanocomposite fertilizers, hydroxyapatite (HAP), Bayovar rock phosphate (BAY), or triple superphosphate (TSP), dispersed in urea ́ −starch matrices in granular form. The experiments were done in pot experiments, analyzing the chemical composition of forage and soil after each cut. After four cuts, the treatment with the TSP nanocomposite resulted in a higher number of tillers and a higher root dry matter. However, HAP and its composites showed a similar performance to TSP in the first cut for these parameters. Plants grown with TSP have absorbed more phosphorus than those supplemented by nanocomposites (considering similar dry matter yields), which suggests that the release of nutrients from nanocomposites is better adjusted to plants? needs, promoting a better phosphorus use efficiency |
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Palavras-Chave: |
Phosphate fertilizer efficiency; Zuri grass. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02036naa a2200253 a 4500
001 2148463
005 2024-01-23
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1021/acsagscitech.2c00012$2DOI
100 1 $aREIS, H. P. G
245 $aRole of slow-release phosphate nanofertilizers in forage nutrition and phosphorus lability.$h[electronic resource]
260 $c2022
300 $a564–572
520 $aUp to 80% of the applied phosphorus via fertilizers can be lost to the environment through adsorption and precipitation reactions. Although nanoparticulated fertilizers can improve phosphate efficiency, they should be kept with no agglomeration, e.g., by dispersing urea (nanocomposite), which also provides nitrogen for plants. Thus, we evaluated the phosphorus dynamics in the soil and nutrient supply to Panicum maximum cv. ?BRS Zuri? (Zuri grass) through three model nanocomposite fertilizers, hydroxyapatite (HAP), Bayovar rock phosphate (BAY), or triple superphosphate (TSP), dispersed in urea ́ −starch matrices in granular form. The experiments were done in pot experiments, analyzing the chemical composition of forage and soil after each cut. After four cuts, the treatment with the TSP nanocomposite resulted in a higher number of tillers and a higher root dry matter. However, HAP and its composites showed a similar performance to TSP in the first cut for these parameters. Plants grown with TSP have absorbed more phosphorus than those supplemented by nanocomposites (considering similar dry matter yields), which suggests that the release of nutrients from nanocomposites is better adjusted to plants? needs, promoting a better phosphorus use efficiency
653 $aPhosphate fertilizer efficiency
653 $aZuri grass
700 1 $aGIROTO. A. S.
700 1 $aGUIMARÃES, G. G. F.
700 1 $aPUTTI, F. F.
700 1 $aPAVINATO, P. S.
700 1 $aTELES, A. P.
700 1 $aRIBEIRO, C.
700 1 $aFERNANDES, D. M.
773 $tACS Agricultural Science & Technology$gv. 2, 2022.
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