A5057833486- Environmental and biological studies
- Growth and nutrition in plants
- Plant Water Relations and Carbon Dynamics
- Soil Management and Crop Yield
- Soybean genetics and cultivation
- Agricultural and Food Sciences
- Agricultural pest management studies
- Geography and Environmental Studies
- Leaf Properties and Growth Measurement
- Hydrology and Watershed Management Studies
- Solar Radiation and Photovoltaics
- Forest ecology and management
- Remote Sensing in Agriculture
- Plant responses to elevated CO2
- Climate change impacts on agriculture
- Soil Moisture and Remote Sensing
- Seed Germination and Physiology
- Climate variability and models
- Irrigation Practices and Water Management
- Date Palm Research Studies
- Soil Geostatistics and Mapping
- Water Quality Monitoring Technologies
- Water resources management and optimization
- Oil Palm Production and Sustainability
- Precipitation Measurement and Analysis
Universidade Federal Rural da Amazônia
2011-2024
Secretaria do Meio Ambiente
2023-2024
Brazilian Institute of Environment and Renewable Natural Resources
2024
Universidade Federal do Oeste do Pará
2023-2024
Instituto Sócioambiental
2018-2023
Universidade Federal do Rio Grande do Norte
2023
Universidade Federal de Mato Grosso do Sul
2023
Universidade Federal de Mato Grosso
2023
Universidade de Cuiabá
2023
National Institute for Space Research
2023
The analysis of gross primary production (GPP) is crucial to better understand CO2 exchanges between terrestrial ecosystems and the atmosphere, while quantification water-use efficiency (WUE) allows for estimation compensation carbon gained water lost by ecosystem. Understanding these dynamics essential comprehend responses environments ongoing climatic changes. objective present study was analyze, through AMERIFLUX LBA network measurements, variability GPP WUE in four distinct tropical...
ABSTRACT Cowpea has great socioeconomic importance in the northeastern part of Pará state. However, order to provide suitable irrigation management during dry period this region requires solid information regarding water demand by regional crops. This research aims determine demand, crop coefficient (Kc) and uncoupling factor different development stages cowpea northeast Pará. The evapotranspiration (ETc) was measured drainage lysimeters. coupled reference (ETo) obtain coefficients, which...
Energy and water dynamics are crucial for citrus development in the Eastern Amazon. This study aimed to determine energy balance, demand, crop coefficient of acid lime northeast region Pará. A micrometeorological tower was installed center experimental area monitor meteorological variables between October 2020 December 2021. The balance demand were obtained by Bowen ratio method. Kc determined reference evapotranspiration. results indicate that 63% available used latent heat rainiest period,...
ABSTRACT The cowpea bean presents low productivity in the Pará state, Brazil, due to soil fertility and climatic adversity, mainly water deficiency. aim of this study was evaluate yield gap northeast Para state response deficit during its reproductive phase. experiment carried out Castanhal, PA, 2015 2016. A randomized block design with six repetitions four treatments used; where T1 consisted 100% replacement crop evapotranspiration (ETc), T2 50%, T3 25% T4 without irrigation, determined at...
ABSTRACT The state of Pará is the main regional producer cowpea, but its yield still low compared to other states Northern region such as Amazonas and Tocantins, due management adopted water regime during cycle, since cultivation conducted on a rainfed basis. objective this study was evaluate how deficit imposed reproductive stage interferes in cowpea use efficiency under climatic conditions Castanhal, Pará, Brazil, for agricultural planning purposes. experiment carried out northeastern dry...
ABSTRACT This study aimed to calibrate and test the SARRA-H (Système d’Analyse Régionale des Risques Agroclimatologiques) crop model for cowpea, as well conducting a climate risk zoning this in region located Eastern Amazon, allowing identification of locations sowing dates that favor production considering both water deficit probability occurrence severe rains during harvest period. The was calibrated validated with data from experiments conducted between 2013 2016 municipality Castanhal,...
With few measurement sites and a great need to validate satellite data characterize the exchange of energy carbon fluxes in tropical forest areas, quantified by Net Ecosystem Exchange (NEE) associated with phenological measurements, there is an increasing for studies aimed at characterizing Amazonian environment its biosphere–atmosphere interaction, considering accelerated deforestation recent years. Using from flux tower Caxiuanã-PA (2005–2008), climatic data, CO2 estimated eddy covariance,...
Os regimes térmicos e hídricos do solo se comportam de maneiras diferentes em anos ocorrência dos fenômenos El Niño, La niña ano não nenhum dois fenômenos. Para estudar estes comportamentos utilizou-se dados totais horários mensais da precipitação pluviométrica, médios temperatura nas profundidades 2cm 10cm umidade 5cm 20cm, para os representativos eventos pesquisados. resultados mostram que o sob a influência fenômeno apresentou maiores valores menores solo, quando comparado com esteve...
Resumo O feijão-caupi é uma leguminosa bastante cultivada no Norte e Nordeste do Brasil, mas Pará, a cultura apresenta baixa produtividade, devido à fertilidade dos solos especialmente deficiência hídrica. trabalho teve como objetivo avaliar o efeito de distintos níveis hídrica acumulada durante fase reprodutiva nas trocas gasosas feijão-caupi. experimento foi conduzido em Castanhal-Pa, 2015 2016, um delineamento blocos ao acaso, com seis repetições quatro tratamentos correspondentes...
Abstract The objective of this work was to deter mine the base temperatures, thermal time requirements, and length main reproductive growth stages acai palm (Euterpe oleracea) in northeast state Pará, eastern Amazon, Brazil. experiment carried out from 2017 2019 a 10 ha plantation, using time-series analysis. Plant phenology monitored weekly, local weather conditions were daily. lower upper temperatures 12.92 32.46°C, respectively, for pre-flowering; 13.50 32.23°C flowering; 12.14 32.55°C...
Abstract This study aims to determine the cowpea efficiency in absorbing and using solar radiation according different irrigation depths under climatic conditions of northeast Pará State. The experiment was carried out on 2014 2016 an experimental design randomized blocks, which consisted six blocks with four treatments, reproductive phase were applied, as follows: T100, T50, T25 e T0, that corresponded 100%, 50%, 25% 0% crop evapotranspiration, respectively. absorbed photosynthetically...
The present work evaluated the Aquacrop model as a tool for climate risk analysis and yield prediction of cowpea, cultivated in dystrophic yellow oxisol. was previously calibrated validated two harvests, order to simulate biomass considering four applied water blades over its reproductive period. good achieved results prove model’s efficiency this kind simulation. After validation, simulation cowpea based on meteorological data (2003 2014), soil crop management 12 harvests performed. Two...
Cowpea (Vigna unguiculata (L.) Walp.) is a leguminous species widely cultivated in northern and northeastern Brazil. In the state of Pará, this crop still has low productivity due to several factors, such as soil fertility climatic adversity, especially water deficiency. Therefore, present study aimed at evaluating physiological parameters cowpea plants under different depths. The experiment was conducted Castanhal/Pará between 2015 2016. A randomized block design applied with six...
ABSTRACT Cowpeas are of high socioeconomic importance in the North and Northeast regions Brazil, whereby search for alternatives that offer increased productivity with financial returns has become an important challenge. Thus, objective this study was to estimate evaluate economic indicators cowpea production 2015 2016 when applying drip irrigation different depths. Irrigation treatments were based on crop evapotranspiration (ETc). The experiment laid a randomized complete blocks design four...
Abstract We investigate the balance of radiation and energy over a lime orchard in Eastern Amazon how it relates to environmental conditions. found that trees aged between 6 7 years old reflect 11.0% 14.5% incoming shortwave radiation, latent heat flux corresponds 57.6% 66.6% daily net dry season (August - November) 2020, 2021, respectively. The soil represents 1% 2% radiation. Evapotranspiration was much lower than reference evapotranspiration from August November 2019 2020. increased...
Flow in the Capim River watershed, located state of Pará, Brazil, was estimated using Soil and Water Assessment Tool (SWAT) model order to determine its use efficiency. The meteorological data (from 2000 2010) were collected from an automatic station municipality Paragominas. pluviometric fluviometric are available at National Agency (ANA) website. Overall results show Efficiency Coefficient (Eff) values 0.65 (for sub-basin 5) 0.87 for entire investigated period. also a reduction Eff...
O extrativismo de produtos florestais não madeireiros na Amazônia é uma atividade que expõe o trabalhador a riscos ambientais podem afetar sua saúde e segurança no trabalho. objetivo deste estudo foi identificar os impactos psicofisiológicos físicos da coleta do fruto açaizeiro Oriental. Estudo realizado pela aplicação questionários semiabertos entrevistas estruturadas baseadas partir protocolos software Ergolândia versão 6.0 33 coletores Ilha Combú, Belém/PA. Os identificados foram:...
ABSTRACT Determining the optimal sowing window (OSW) based on climate variability associated with El Nino-Southern Oscillation (ENSO) can provide valuable information for agricultural planning in tropics. This study aimed to calibrate, evaluate and apply CROPGRO-Soybean model determining OSW across ENSO phases soybean-producing areas Pará State, northern Brazil. First, was calibrated evaluated using experimental data collected field, between 2006 2009. In this process, estimates showed a...
Este artigo descreve o desenvolvimento e implementação de uma estação meteorológica automática embarcada baseada no microcontrolador ESP8266 NodeMCU V3 na plataforma IoT ThingSpeak, em Belém - PA. Foram coletados dados temperatura umidade, velocidade do vento precipitação usando os sensores AM2301, SEN017 PB10, respectivamente, durante período 13/05/2022-14/05/2022, realizando leituras horárias conforme a referência Instituto Nacional Meteorologia (INMET) local, armazenando visualizando por...
The culture of açaí (Euterpe oleraceae M.), originating from floodplain areas, was planted on dry land in many properties Pará, Brazil, making necessary the use irrigation. To irrigate adequately with less waste, it is that studies aim at increasing efficiency water this sector, and one ways to do so estimate evapotranspiration (ET). objective study actual daily using Surface Energy Balance Algorithm for Land (SEBAL) eastern Amazonia. Six images Landsat 8 satellite were used, estimates SEBAL...
Water availability is a crucial factor in the final productivity of cowpea. The objective this work was to evaluate production and components cowpea under different irrigation depths Amazonian conditions. experiment carried out at School Farm Federal Rural University Amazonia, municipality Castanhal-PA, using cultivar BR3 Tracuateua, from September November 2014, 2015, 2016. experimental design conducted on six blocks four treatments, where 0, 25, 50, 100% crop evapotranspiration were...
O presente trabalho faz um estudo sobre os Índices de Anomalia Chuva (IAC) e suas relações com desastres naturais na cidade Marabá no sudeste do Pará, Amazônia Oriental. Foram usados dados precipitação pluviométrica média mensal dos anos 1973 a 2017 da Marabá, oriundos Instituto Brasileiro Meteorologia (INMET), informações básicas respeito Gestão Riscos Desastres Naturais região Marabá. Estes foram obtidos por meio Geografia Estatística (IBGE), simulados modelo climático Coupled Climate Mode...