| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
06/11/2014 |
|
Data da última atualização: |
18/10/2022 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso |
|
Autoria: |
ALVES, R. N. B.; MODESTO JUNIOR, M. de S.; SILVA, E. S. A. |
|
Afiliação: |
RAIMUNDO NONATO BRABO ALVES, CPATU; MOISES DE SOUZA MODESTO JUNIOR, CPATU; ENILSON SOLANO ALBUQUERQUE SILVA, CPATU. |
|
Título: |
Roça sem fogo: alternativa agroecológica de ciclagem de nutrientes com uso da leguminosa Ingá edulis Mart. para produção de mandioca. |
|
Ano de publicação: |
2010 |
|
Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE MEIO AMBIENTE DE POÇOS DE CALDAS, 7.; ENCONTRO DE APICULTORES DO SUL DE MINAS, 1., 2010, Poços de Caldas. Anais... Poços de Caldas: GSC, 2010. |
|
Idioma: |
Português |
|
Conteúdo: |
Como Alternativa ao sistema tradicional de cultivo, baseado na utilização de agroquímicos, este trabalho avaliou os custos da formação de jardim de reciclagem com a leguminosa Inga edulis como planta recicladora de nutrientes, em um sistema agroecológico para produção de mandioca. O experimento foi conduzido no campo experimental da Embrapa Amazônia Oriental, no Município de Moju, PA, em Latossolo amarelo de textura arenosa em elevado estado de degradação. O ingá foi plantado em duas parcelas de 20m x 50m nos espaçamentos de 5m x 5m e 10m x 10m. Nas entrelinhas foi realizado o plantio de mandioca avaliado aos 15 meses de idade. A produtividade média de mandioca nos dois sistemas foi de 24 t/ha. A análise financeira demonstrou viabilidade do sistema proposto onde a margem bruta foi de R$ 896,46 e R$ 979,53 e a relação benefício/custo de 1,30 e 1,34 para o maior e menor espaçamento respectivamente. O plantio do ingá no espaçamento de 5m x 5m foi mais eficiente na cobertura do solo. |
|
Palavras-Chave: |
Agroecologia; Ciclagem de nutriente. |
|
Thesagro: |
Leguminosa; Mandioca. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/111110/1/roca-fogo.pdf
|
|
Marc: |
LEADER 01744nam a2200181 a 4500
001 1999388
005 2022-10-18
008 2010 bl uuuu u00u1 u #d
100 1 $aALVES, R. N. B.
245 $aRoça sem fogo$balternativa agroecológica de ciclagem de nutrientes com uso da leguminosa Ingá edulis Mart. para produção de mandioca.$h[electronic resource]
260 $aIn: CONGRESSO NACIONAL DE MEIO AMBIENTE DE POÇOS DE CALDAS, 7.; ENCONTRO DE APICULTORES DO SUL DE MINAS, 1., 2010, Poços de Caldas. Anais... Poços de Caldas: GSC$c2010
520 $aComo Alternativa ao sistema tradicional de cultivo, baseado na utilização de agroquímicos, este trabalho avaliou os custos da formação de jardim de reciclagem com a leguminosa Inga edulis como planta recicladora de nutrientes, em um sistema agroecológico para produção de mandioca. O experimento foi conduzido no campo experimental da Embrapa Amazônia Oriental, no Município de Moju, PA, em Latossolo amarelo de textura arenosa em elevado estado de degradação. O ingá foi plantado em duas parcelas de 20m x 50m nos espaçamentos de 5m x 5m e 10m x 10m. Nas entrelinhas foi realizado o plantio de mandioca avaliado aos 15 meses de idade. A produtividade média de mandioca nos dois sistemas foi de 24 t/ha. A análise financeira demonstrou viabilidade do sistema proposto onde a margem bruta foi de R$ 896,46 e R$ 979,53 e a relação benefício/custo de 1,30 e 1,34 para o maior e menor espaçamento respectivamente. O plantio do ingá no espaçamento de 5m x 5m foi mais eficiente na cobertura do solo.
650 $aLeguminosa
650 $aMandioca
653 $aAgroecologia
653 $aCiclagem de nutriente
700 1 $aMODESTO JUNIOR, M. de S.
700 1 $aSILVA, E. S. A.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
05/09/2003 |
|
Data da última atualização: |
02/12/2022 |
|
Autoria: |
MORAN, E. F.; BRONDIZIO, E. S.; TUCKER, J. M.; SILVA-FORSBERG, M. C. da; McCRACKEN, S.; FALESI, I. |
|
Afiliação: |
Emilio F. Moran, Anthropological Center for Training and Research on Global Environmental Change, Indiana University; Eduardo S. Brondizio, Anthropological Center for Training and Research on Global Environmental Change, Indiana University; Joanna M. Tucker, Center for Latin American Studies, University of Arizona; Maria Clara da Silva-Forsberg, School of Public and Environmental Affairs, Indiana University; Stephen McCracken, Anthropological Center for Training and Research on Global Environmental Change, Indiana University; ITALO CLAUDIO FALESI, CPATU. |
|
Título: |
Effects of soil fertility and land-use on forest succession in Amazonia. |
|
Ano de publicação: |
2000 |
|
Fonte/Imprenta: |
Forest Ecology and Management, v. 139, n. 1/3, p. 93-108, Dec. 2000. |
|
DOI: |
http://dx.doi.org/10.1016/S0378-1127(99)00337-0 |
|
Idioma: |
Inglês |
|
Conteúdo: |
This paper examines the role of soil fertility and land-use history on the rates of forest successional regrowth in five regions of the Amazon Basin. Sites are located in the Bragantina Region, Tomé Açú Region, Altamira Region and Marajó Region of the State of Pará, Brazil and in a region of the Colombian Vaupés. Methods used included vegetation inventories of successional and mature forests, soil sampling, ethnographic assessment of land-use histories, and land cover classification based on multi-temporal Landsat Thematic Mapper digital satellite data. The paper examines inter-regional differences, intra-regional differences, and Basin-wide differences in rates of forest regrowth. Inter-regional differences are best explained by the differences between areas in soil fertility, whereas intra-regional differences are best explained by the differential impact of land-use history on forest recovery. Basin-wide differences in rates of succession can best be captured by differences in tree height, and secondarily by differences in basal area. In inter-regional comparisons we found that ultisols, oxisols, and spodosols present similar rates of regrowth, but considerably slower rates when compared to alfisols. During the first 5?10 years of regrowth, alfisol areas have average stand height 1 m higher, and this difference doubles after 15 years of regrowth. In intra-regional comparisons, using one region as an example, we found that land-use differences are most able to explain differences. Areas that had been in swidden agriculture grew back at a rate of 1.5 m per year, as compared with 0.45 m per year for areas that had experienced mechanized land preparation, and 0.62 m per year for areas that had been in pasture. In Basin-wide comparisons we have been able to discriminate three distinct stages of secondary succession using structural criteria, across both soil and land-use types with height as the most predictive criteria of overall structural development. By comparing our five sites? data with that of other investigators, the paper proposes Basin-wide patterns of regrowth for each of three structural stages of secondary succession that facilitate linking the field vegetation data to remotely-sensed data of land cover. MenosThis paper examines the role of soil fertility and land-use history on the rates of forest successional regrowth in five regions of the Amazon Basin. Sites are located in the Bragantina Region, Tomé Açú Region, Altamira Region and Marajó Region of the State of Pará, Brazil and in a region of the Colombian Vaupés. Methods used included vegetation inventories of successional and mature forests, soil sampling, ethnographic assessment of land-use histories, and land cover classification based on multi-temporal Landsat Thematic Mapper digital satellite data. The paper examines inter-regional differences, intra-regional differences, and Basin-wide differences in rates of forest regrowth. Inter-regional differences are best explained by the differences between areas in soil fertility, whereas intra-regional differences are best explained by the differential impact of land-use history on forest recovery. Basin-wide differences in rates of succession can best be captured by differences in tree height, and secondarily by differences in basal area. In inter-regional comparisons we found that ultisols, oxisols, and spodosols present similar rates of regrowth, but considerably slower rates when compared to alfisols. During the first 5?10 years of regrowth, alfisol areas have average stand height 1 m higher, and this difference doubles after 15 years of regrowth. In intra-regional comparisons, using one region as an example, we found that land-use differences are most able to explain diff... Mostrar Tudo |
|
Palavras-Chave: |
Brasil; Sucessão ecológica. |
|
Thesagro: |
Desmatamento; Fertilidade do Solo; Floresta; Uso da Terra. |
|
Thesaurus NAL: |
Amazonia. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 03080naa a2200277 a 4500
001 1403687
005 2022-12-02
008 2000 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/S0378-1127(99)00337-0$2DOI
100 1 $aMORAN, E. F.
245 $aEffects of soil fertility and land-use on forest succession in Amazonia.$h[electronic resource]
260 $c2000
520 $aThis paper examines the role of soil fertility and land-use history on the rates of forest successional regrowth in five regions of the Amazon Basin. Sites are located in the Bragantina Region, Tomé Açú Region, Altamira Region and Marajó Region of the State of Pará, Brazil and in a region of the Colombian Vaupés. Methods used included vegetation inventories of successional and mature forests, soil sampling, ethnographic assessment of land-use histories, and land cover classification based on multi-temporal Landsat Thematic Mapper digital satellite data. The paper examines inter-regional differences, intra-regional differences, and Basin-wide differences in rates of forest regrowth. Inter-regional differences are best explained by the differences between areas in soil fertility, whereas intra-regional differences are best explained by the differential impact of land-use history on forest recovery. Basin-wide differences in rates of succession can best be captured by differences in tree height, and secondarily by differences in basal area. In inter-regional comparisons we found that ultisols, oxisols, and spodosols present similar rates of regrowth, but considerably slower rates when compared to alfisols. During the first 5?10 years of regrowth, alfisol areas have average stand height 1 m higher, and this difference doubles after 15 years of regrowth. In intra-regional comparisons, using one region as an example, we found that land-use differences are most able to explain differences. Areas that had been in swidden agriculture grew back at a rate of 1.5 m per year, as compared with 0.45 m per year for areas that had experienced mechanized land preparation, and 0.62 m per year for areas that had been in pasture. In Basin-wide comparisons we have been able to discriminate three distinct stages of secondary succession using structural criteria, across both soil and land-use types with height as the most predictive criteria of overall structural development. By comparing our five sites? data with that of other investigators, the paper proposes Basin-wide patterns of regrowth for each of three structural stages of secondary succession that facilitate linking the field vegetation data to remotely-sensed data of land cover.
650 $aAmazonia
650 $aDesmatamento
650 $aFertilidade do Solo
650 $aFloresta
650 $aUso da Terra
653 $aBrasil
653 $aSucessão ecológica
700 1 $aBRONDIZIO, E. S.
700 1 $aTUCKER, J. M.
700 1 $aSILVA-FORSBERG, M. C. da
700 1 $aMcCRACKEN, S.
700 1 $aFALESI, I.
773 $tForest Ecology and Management$gv. 139, n. 1/3, p. 93-108, Dec. 2000.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
