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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
16/12/2013 |
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Data da última atualização: |
20/10/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
VENTURIERI, A.; COELHO, A. dos S.; THALES, M. C.; BACELAR, M. D. R. |
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Afiliação: |
ADRIANO VENTURIERI, CPATU; Andréa dos Santos Coelho, BOLSISTA CPATU/CNPQ; Marcelo Cordeiro Thales, MPEG; Maria Denise Ribeiro Bacelar, IBGE. |
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Título: |
Análise da expansão da agricultura de grãos na região de Santarém e Belterra, Oeste do estado do Pará. |
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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. |
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Páginas: |
p. 7003-7010. |
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Idioma: |
Português |
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Conteúdo: |
The images obtained from orbital platforms have been used for the analysis of many occupation processes of the Amazon region along the years. Nevertheless, analyses that have only one date of passage portray just a point in time and, for that, do not explain the occupation process of the region. The evolution of the mechanical agriculture in the towns of Belterra and Santarém, in the west side of Pará state, is causing a series of conflicts between the producers and the environmental movements because of the hypothesis of the expansion of the cultivated area in detriment of the areas of forest formation. Through a time series analysis that uses images from the sensors MSS and TM Landsat from 1975, 1986, 1997, 1999, 2004 and 2005, using digital classification and an intense field work, it was possible to observe the dynamic of the use and the discovery of the land. The results show that there was a reduction of 25% of the forest in the last 30 years. Although the main landscape is the forest formation, it was found that the use of the land with the most occupied area are the regions destinated to the agriculture and cattle activities and which are related to the producers of different levels of technology who try to combine a series of productive systems, aiming the diversity of the natural resources. In addition, it was possible to observe that, unlike other regions in the Amazon, the areas of secondary vegetation presented a high growth in the analyzed time period. Finally it is noticed that the culture of grains was implemented, mostly, in areas that were altered and used for pasture, secondary vegetation and agriculture and livestock activities (related to small and medium producers), having been converted a total of 435 km2 of forest from the year of 1999 to 2004, representing 8% of the total planted area in that year. Although we notice a smaller impact in the environmental context, the direct conversion of the agriculture and livestock class into the grain plantation seems to indicate a process of land concentration and migration of smallholder farmers to the urban areas and/ or new fronts of occupation. This social impact, already observed in Santarém suburbs, should be object of study for the government, mainly concerning the elaboration and implementation of a specific agricultural politics for the Amazon and should enable the smallholder farmer the maintenance of his land and food production. MenosThe images obtained from orbital platforms have been used for the analysis of many occupation processes of the Amazon region along the years. Nevertheless, analyses that have only one date of passage portray just a point in time and, for that, do not explain the occupation process of the region. The evolution of the mechanical agriculture in the towns of Belterra and Santarém, in the west side of Pará state, is causing a series of conflicts between the producers and the environmental movements because of the hypothesis of the expansion of the cultivated area in detriment of the areas of forest formation. Through a time series analysis that uses images from the sensors MSS and TM Landsat from 1975, 1986, 1997, 1999, 2004 and 2005, using digital classification and an intense field work, it was possible to observe the dynamic of the use and the discovery of the land. The results show that there was a reduction of 25% of the forest in the last 30 years. Although the main landscape is the forest formation, it was found that the use of the land with the most occupied area are the regions destinated to the agriculture and cattle activities and which are related to the producers of different levels of technology who try to combine a series of productive systems, aiming the diversity of the natural resources. In addition, it was possible to observe that, unlike other regions in the Amazon, the areas of secondary vegetation presented a high growth in the analyzed time period. Finally ... Mostrar Tudo |
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Palavras-Chave: |
Cultura de grãos. |
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Thesagro: |
Sensoriamento Remoto. |
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Thesaurus Nal: |
Amazonia. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/94124/1/7003-7010.pdf
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Marc: |
LEADER 03126nam a2200193 a 4500
001 1974089
005 2022-10-20
008 2007 bl uuuu u00u1 u #d
100 1 $aVENTURIERI, A.
245 $aAnálise da expansão da agricultura de grãos na região de Santarém e Belterra, Oeste do estado do Pará.$h[electronic resource]
260 $aIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 13., 2007, Florianópolis. Anais... São José dos Campos: INPE$c2007
300 $ap. 7003-7010.
520 $aThe images obtained from orbital platforms have been used for the analysis of many occupation processes of the Amazon region along the years. Nevertheless, analyses that have only one date of passage portray just a point in time and, for that, do not explain the occupation process of the region. The evolution of the mechanical agriculture in the towns of Belterra and Santarém, in the west side of Pará state, is causing a series of conflicts between the producers and the environmental movements because of the hypothesis of the expansion of the cultivated area in detriment of the areas of forest formation. Through a time series analysis that uses images from the sensors MSS and TM Landsat from 1975, 1986, 1997, 1999, 2004 and 2005, using digital classification and an intense field work, it was possible to observe the dynamic of the use and the discovery of the land. The results show that there was a reduction of 25% of the forest in the last 30 years. Although the main landscape is the forest formation, it was found that the use of the land with the most occupied area are the regions destinated to the agriculture and cattle activities and which are related to the producers of different levels of technology who try to combine a series of productive systems, aiming the diversity of the natural resources. In addition, it was possible to observe that, unlike other regions in the Amazon, the areas of secondary vegetation presented a high growth in the analyzed time period. Finally it is noticed that the culture of grains was implemented, mostly, in areas that were altered and used for pasture, secondary vegetation and agriculture and livestock activities (related to small and medium producers), having been converted a total of 435 km2 of forest from the year of 1999 to 2004, representing 8% of the total planted area in that year. Although we notice a smaller impact in the environmental context, the direct conversion of the agriculture and livestock class into the grain plantation seems to indicate a process of land concentration and migration of smallholder farmers to the urban areas and/ or new fronts of occupation. This social impact, already observed in Santarém suburbs, should be object of study for the government, mainly concerning the elaboration and implementation of a specific agricultural politics for the Amazon and should enable the smallholder farmer the maintenance of his land and food production.
650 $aAmazonia
650 $aSensoriamento Remoto
653 $aCultura de grãos
700 1 $aCOELHO, A. dos S.
700 1 $aTHALES, M. C.
700 1 $aBACELAR, M. D. R.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
20/09/2002 |
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Data da última atualização: |
21/03/2019 |
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Autoria: |
ASSIS, A. G. de; SOUZA, R. M. de; VILLAÇA, H. de A.; MARCELLINO, A. |
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Afiliação: |
AIRDEM GONÇALVES DE ASSIS, Estação Experimental de Água Limpa/Setor de Nutrição Animal; RONALDO MENDES DE SOUZA, Estação Experimental de Água Limpa; HERMENEGILDO DE ASSIS VILLAÇA, Estação Experimental de Água Limpa/Setor de Nutrição Animal; ARNALDO MARCELLINO, Estação Experimental de Água Limpa. |
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Título: |
Efeito de duas suplementações energético-proteicas, no desenvolvimento ponderal de novilhos mestiços, em confinamento. |
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Ano de publicação: |
1976 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 11, n. 5, p. 13-16, 1976. |
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Série: |
(Zootecnia). |
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Idioma: |
Português |
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Notas: |
Título em inglês: Effect of two energy-protein supplements on the performance of cross-breed steers in feedlot. |
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Conteúdo: |
Em experimento conduzido em Coronel Pacheco, MG, de 26 de junho a 2 de outubro de 1973, com a finalidade de observar a eficiência de duas suplementações na engorda de bovinos em confinamento, na época seca, foram utilizados 16 novilhos mestiços holandês x zebu, castrados, com idade inicial de 30 meses e peso vivo em torno de 350 kg. os animais,k após um período de adaptação de 20 dias, foram submetidos aos seguintes tratamentos: A) melço (955) + uréia (5%), e B) melaço (50%) + cama de galinheiro (50%). Todos os animais foram suplementados, à vontade, com palhada de milho + capim-angola (Brachiaria purpuracens) picados, e mistura mineral (sal comum e farinha de ossos mineralizada na proporção de 1:1). Os ganhos de peso observados foram de 0,289 e 0,556 kg/an/dia para os tratamentos A e B, respectivamente, sendo que só este último apresentou resultado econômico positivo. Estes resultados permitiram concluir que a mistura melaço + cama de galinheiro foi superior à mistura melaço + uréia tanto nutricional, quanto economicamente. |
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Palavras-Chave: |
Brachiaria purpuracens; capim-angola; novilhos mestiços; palhada de milho; Suplementação energético-proteica. |
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Thesagro: |
Cama de Galinheiro; Confinamento; Engorda; Melaço; Uréia. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/194750/1/Efeito-de-duas-suplementacoes-energetico-proteica.pdf
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Marc: |
LEADER 02070naa a2200301 a 4500
001 1108467
005 2019-03-21
008 1976 bl uuuu u00u1 u #d
100 1 $aASSIS, A. G. de
245 $aEfeito de duas suplementações energético-proteicas, no desenvolvimento ponderal de novilhos mestiços, em confinamento.
260 $c1976
490 $a(Zootecnia).
500 $aTítulo em inglês: Effect of two energy-protein supplements on the performance of cross-breed steers in feedlot.
520 $aEm experimento conduzido em Coronel Pacheco, MG, de 26 de junho a 2 de outubro de 1973, com a finalidade de observar a eficiência de duas suplementações na engorda de bovinos em confinamento, na época seca, foram utilizados 16 novilhos mestiços holandês x zebu, castrados, com idade inicial de 30 meses e peso vivo em torno de 350 kg. os animais,k após um período de adaptação de 20 dias, foram submetidos aos seguintes tratamentos: A) melço (955) + uréia (5%), e B) melaço (50%) + cama de galinheiro (50%). Todos os animais foram suplementados, à vontade, com palhada de milho + capim-angola (Brachiaria purpuracens) picados, e mistura mineral (sal comum e farinha de ossos mineralizada na proporção de 1:1). Os ganhos de peso observados foram de 0,289 e 0,556 kg/an/dia para os tratamentos A e B, respectivamente, sendo que só este último apresentou resultado econômico positivo. Estes resultados permitiram concluir que a mistura melaço + cama de galinheiro foi superior à mistura melaço + uréia tanto nutricional, quanto economicamente.
650 $aCama de Galinheiro
650 $aConfinamento
650 $aEngorda
650 $aMelaço
650 $aUréia
653 $aBrachiaria purpuracens
653 $acapim-angola
653 $anovilhos mestiços
653 $apalhada de milho
653 $aSuplementação energético-proteica
700 1 $aSOUZA, R. M. de
700 1 $aVILLAÇA, H. de A.
700 1 $aMARCELLINO, A.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 11, n. 5, p. 13-16, 1976.
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Embrapa Unidades Centrais (AI-SEDE) |
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