Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 4
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Brazilian Amazon: a significant five year drop in deforestation rates but figures are on the rise again. Repositório Alice
MALINGREAU, J. P.; H. D. EVA; MIRANDA, E. E. de.
Brazilian officials have recently announced that, after a five year lull, deforestation rates are again on the rise in the Legal Amazon (INPE 2011). While this may come as no surprise to some, it is still useful to examine the conditions which have led to the unexpected success by the authorities in reducing deforestation over the previous 5 years. The more so in that these years were characterized by rising agricultural commodity prices, usually a key driver in deforestation dynamics. We argue here that, despite the strong efforts by national and regional authorities to control deforestation processes a reversal of the trend was bound to occur as new policies were set into motion during the relatively quiet deforestation period to accommodate the economic...
Tipo: Artigo de periódico Palavras-chave: Legal Amazon; Deforestation.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1123998
Imagem não selecionada

Imprime registro no formato completo
Land use and vegetation cover on native symbionts and interactions with cowpea AGRIAMBI
Rocha,Beatriz C. F.; Santos,Enésia O. da S.; Santos,José G. D.; Takako,Adriana K.; Castro,Fabio J..
ABSTRACT Arbuscular mycorrhizal fungi and rhizobia are important components of agroecosystems and they respond to human interference. The objective of this study was to investigate native communities of those microorganisms in soil collected under the native forest, four pastures (Brachiaria brizantha, Panicum maximum, Arachis pintoi and Stylosanthes guianensis) and a fallow soil after maize cultivation, in interaction with cowpea (Vigna unguculata). The cowpea grew in a greenhouse until flowering. They were randomly distributed depending on soil, in five replications. The lowest mycorrhizal fungi sporulation and mycorrhizal root colonization occurred under the Panicum and forest soil. In the soils under forest and Stylosanthes, the cowpea did not exhibit...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Arbuscular mycorrhiza; Rhizobia; Legal Amazon; Nodulation.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000200116
Imagem não selecionada

Imprime registro no formato completo
Multivariate Analysis and Machine Learning in Properties of Ultisols (Argissolos) of Brazilian Amazon Rev. Bras. Ciênc. Solo
Souza,Cristiano Marcelo Pereira de; Thomazini,André; Schaefer,Carlos Ernesto Gonçalves Reynaud; Veloso,Gustavo Vieira; Moreira,Guilherme Musse; Fernandes Filho,Elpídio Inácio.
ABSTRACT: Ultisols are the most common soil order in the Brazilian Amazon. The Legal Amazon (LA) has an area of 5 × 106 km2, with few accessible areas, which restricts studies of soils at a detailed level. The pedological properties can be estimated more efficiently using statistical procedures and machine learning techniques, tools which are capable of recognizing patterns in a large soil database. We analyzed the main chemical and physical properties of the B horizons of the Ultisols of the Brazilian Amazon, as well as the spatial variability of the most explanatory properties of these horizons. Physical and chemical data of 1,068 profiles of the RadamBrasil Project were used. A principal component analysis (PCA) was applied and the most explanatory...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Legal Amazon; Principal component analysis; Morphostructural domains; Climatic zones.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100317
Imagem não selecionada

Imprime registro no formato completo
Reforestation feasibility in area formerly used for cattle rasing in the state of Rondonia, Northwest Brasilian Amazon. Repositório Alice
GAMA, M. de M. B.; ROCHA, R. B.; SALMAN, A. K. D.; MENDES, A. M.; FIGUEIRO, M. R..
Assim, o objetivo deste trabalho foi avaliar o estabelecimento de espécies arbóreas nativas no reflorestamento de área de pastagem anteriormente destinada à criação intensiva de gado no Estado de Rondônia.
Tipo: Artigo de periódico Palavras-chave: Legal Amazon; The Brazilan Forest Code; Environmental Adequacy; Amazônia Legal; Código Florestal Brasileiro; Adequação Ambiental.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/978679
Registros recuperados: 4
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional