A5054252186- Soil Management and Crop Yield
- Geography and Environmental Studies
- Environmental Sustainability and Education
- Soil erosion and sediment transport
- Soil Carbon and Nitrogen Dynamics
- Growth and nutrition in plants
- Iron oxide chemistry and applications
- Soil Geostatistics and Mapping
- Geochemistry and Geologic Mapping
- Amazonian Archaeology and Ethnohistory
- Healthcare during COVID-19 Pandemic
- Geotechnical Engineering and Analysis
- Geotechnical Engineering and Soil Stabilization
- Insect and Arachnid Ecology and Behavior
- Insect Utilization and Effects
- Rural Development and Agriculture
- Forest Ecology and Biodiversity Studies
- Indigenous Health and Education
- Soil and Unsaturated Flow
- Forest ecology and management
- Urban and sociocultural dynamics
- Environmental and biological studies
- Clay minerals and soil interactions
- Business and Management Studies
- Dam Engineering and Safety
Universidade Federal do Amazonas
2013-2025
Universidade de São Paulo
2005-2016
Instituto de Pesquisas Jardim Botânico do Rio de Janeiro
2013
Ministério da Agricultura
2013
Amazon (United States)
2013
Brazilian Agricultural Research Corporation
2013
Universidade de Brasília
2013
As várzeas do rio Solimões são áreas inundáveis com predomínio de Gleissolos, onde se estabeleceu grande parte da população rural Estado Amazonas. Os objetivos deste trabalho foram caracterizar e classificar cinco perfis distribuídos em três bacia Médio Amazonas, localizados nas dos municípios Manacapuru Iranduba. Após a descrição morfológica solos, coletaram-se amostras seus horizontes para caracterização física, química mineralógica. Similarmente, todos os apresentaram expressiva gleização...
RESUMO: As áreas utilizadas para disposição de resíduos sólidos urbanos - normalmente representados pelos "lixões" são focos potenciais poluição, influenciando negativamente na qualidade vida, saúde humana e ambiental nas regiões sob sua influência. O objetivo deste estudo foi avaliar as alterações no solo da água área Humaitá, Amazonas. realizado em mata nativa, campo natural sólidos, curso d'águas próximos à sólidos. Os baixos teores argila encontrados o torna inadequado metais pesados...
Na região amazônica, pastagens formadas e conduzidas de forma inadequada perdem a produtividade durante os primeiros anos em razão superpastejo, ausência adubação manutenção emprego espécies inadequadas para as condições edafoflorísticas da região. O objetivo deste estudo foi quantificar modificações ocasionadas por diferentes sistemas manejo nos atributos físicos um Latossolo Vermelho-Amarelo (LVA), sob pastagem degradada no Estado Rondônia, RO. Os utilizados tratamentos foram: T =...
Large areas of Plinthosols with ferruginous materials such as plinthite and/or petroplinthite are fairly common in the Brazilian Amazon basin. This work was carried out to investigate chemical behavior, mineralogical composition and weathering stage four representative soil profiles petroplinthite, Iranduba, AM (Central Amazon). Three well-drained at high elevations were studied (P1, Plinthic Vetic Ferralsol; P2 P3, Endopetric Plinthosol) a contrasting poorly drained (P4 Haplic Plinthosol),...
Translator Solos arenosos que ocorrem próximo a centros urbanos são impactados pela atividade exploratória da mineração. No Amazonas essas áreas estão associadas Campinaranas, cuja fragilidade do ecossistema torna importante ampliação de conhecimento para compor planos restauração eficientes. O objetivo deste estudo foi caracterizar e classificar solos sob Campinaranas dois municípios região metropolitana Manaus. Foram selecionadas cinco em Manaus Presidente Figueiredo, onde perfis foram...
Due to the narrow window of ideal moisture conditions required for collecting undisturbed soil samples from hardsetting horizons in field, this study compared efficiency an alternative method core removal laboratory with that traditional field by using measurements bulk density data (Db). In a first sampling, cylinders were removed sampler field. second large blocks Kubiena-type zinc (brass) boxes Volumetric cylinder these manual hydraulic pump. There no differences between Db values...
The management of caiçaras by indigenous peoples in the “Lavrado” (savannas) region Roraima is a practice that increases soil fertility. Caiçaras are temporary corrals where farmers keep cattle at night for certain period, when enriched manure addition. In periods these areas not used as corrals, they may be planted with different plants species. addition, adjacent to receive runoff and also crop production. study evaluated changes physical chemical characteristics resulting from supply...
Objective: The objective of this study was to evaluate edaphic beetles’ abundance, diversity indexes and composition dependence in different land-use systems (LUS) under tropical climate conditions. Method: We surveyed three LUS such as primary forest fragment (FFP), agroforestry system (SAF) conventional agricultural cultivation (CAC) Eastern Amazon. beetles were collected using pitfall traps, identified the family taxonomic level classified into trophic guilds (carnivore, detritivore,...
The aim of this work was to evaluate the effects variations in soil compaction on stability slope embankments fish farms used aquaculture. Computational modeling performed using RocScience Slide 6.0 program, simulating filling scenarios, fast lowering and stationary regimes for full operation farms. data these simulations were obtained from characterization tests laboratory. geometry levees, inclination slopes crest width height, also necessary modeling, field technical projects. generated a...
Biochar has been identified as a conditioner for the physical, chemical and biological properties of soil. In this perspective, it is reckoned that when added in long term, material may condition improvements physical agricultural soils. As result, objective work was to quantify changes attributes soil after thirteen years addition biochar Yellow Dystrophic Oxisol Central Amazon, ecosystem Brazil. thirteen-year experiment (2006-2019) with rotation crops, clayey increasing doses biochar, were...
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