Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 3
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Characterization and Classification of Soils under Forest and Pasture in an Agroextractivist Project in Eastern Amazonia Rev. Bras. Ciênc. Solo
Zenero,Mariana Delgado Oliveira; Silva,Laura Fernanda Simões da; Castilho,Selene Cristina de Pierri; Vidal,Alix; Grimaldi,Michel; Cooper,Miguel.
ABSTRACT: Knowledge of soils in the Amazon rainforest is becoming increasingly essential due to dynamics adopted by farmers that substitute forest for pastures, together with growing pressure from diverse segments of society towards adoption of sustainable production systems. The objective of this study was to characterize the soils along two toposequences, one under forest (F) and the other under pasture (P), and to verify how the change in land use influences soil attributes, evaluating their inclusion in the Brazilian Soil Classification System (SiBCS). The soils were sampled in pits located at the summit, backslope and footslope positions for morphological, chemical, physical, and clay mineralogy analysis. The results show that the soils are chemically...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Argissolos; Ultisols; Southeast of Pará; Soil classification; Saprolitic character; Aquic with episaturation (epirredóxico) character.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100314
Imagem não selecionada

Imprime registro no formato completo
Influence of crust formation under natural rain on physical attributes of soils with different textures Rev. Bras. Ciênc. Solo
Castilho,Selene Cristina de Pierri; Cooper,Miguel; Juhász,Carlos Eduardo Pinto.
One of the main negative anthropic effects on soil is the formation of crusts, resulting in soil degradation. This process of physical origin reduces soil water infiltration, causing increased runoff and consequently soil losses, water erosion and/or soil degradation. The study and monitoring of soil crusts is important for soil management and conservation, mainly in tropical regions where research is insufficient to explain how soil crusts are formed and how they evolve. The purpose of this study was to monitor these processes on soils with different particle size distributions. Soil crusts on a sandy/sandy loam Argissolo Vermelho-Amarelo (Typic Hapludult), sandy loam Latossolo Vermelho-Amarelo (Typic Hapludox) and a clayey Nitossolo Vermelho eutroférrico...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Surface crusting; Soil roughness; Micromorphology.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000600006
Imagem não selecionada

Imprime registro no formato completo
Sediment morphology and distribution in a restored riparian forest Scientia Agricola
Momoli,Renata Santos; Cooper,Miguel; Castilho,Selene Cristina de Pierri.
Sediment distribution patterns of riparian zones reflect the deposition dynamics and the type of deposition event. The purpose of this study is to characterize the morphology and distribution of sediments deposited in a restored riparian forest that were transported from adjacent areas cropped with sugar-cane. In order to study the deposition processes in a riparian forest located in the county of Iracemápolis state of São Paulo, Brazil, soil samples were collected on a transect for micromorphological as well as particle size distribution analyses, using Folk & Ward statistical parameters. Soil samples were dispersed with NaOH + sodium hexametaphosphate and water. The dispersion in water was made to simulate field transport conditions. Particle...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Deposition; Particle size distribution; Image analysis.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000500006
Registros recuperados: 3
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