Gabriel Siqueira Tavares Fernandes

ORCID: 0000-0002-0781-1696
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About
Contact & Profiles
Research Areas
  • Geography and Environmental Studies
  • Environmental and biological studies
  • Agricultural and Food Sciences
  • Growth and nutrition in plants
  • Remote Sensing in Agriculture
  • Coconut Research and Applications
  • Environmental Sustainability and Education
  • Soil Management and Crop Yield
  • Soybean genetics and cultivation
  • Banana Cultivation and Research
  • Botanical Research and Applications
  • Plant Water Relations and Carbon Dynamics
  • Soil erosion and sediment transport
  • Irrigation Practices and Water Management
  • Agricultural pest management studies
  • Rural Development and Agriculture
  • Leaf Properties and Growth Measurement
  • Plant Physiology and Cultivation Studies
  • Bee Products Chemical Analysis
  • Moringa oleifera research and applications
  • Photovoltaic System Optimization Techniques
  • Urban Heat Island Mitigation
  • Peanut Plant Research Studies
  • Oil Palm Production and Sustainability
  • Agriculture Sustainability and Environmental Impact

Universidade Federal Rural da Amazônia
2021-2025

Instituto Sócioambiental
2023

Universidade Federal Rural de Pernambuco
2019-2022

Universidade Federal do Piauí
2018

The objective of this study was to evaluate the causes and consequences changes in water flow São Francisco River, on border between states Sergipe Alagoas, a Brazilian semiarid region. For this, we used images from Landsat-8 satellite, OLI sensor, with spatial resolution 30 ​m. results found reveal two distinct behaviors region Low watershed, first encompassing more homogeneous areas greater environmental preservation located West second heterogeneous severe degradation east In general, due...

10.1016/j.indic.2020.100084 article EN cc-by-nc-nd Environmental and Sustainability Indicators 2020-10-27

The coconut crop (Cocos nucifera L.) is essential in humid tropical regions, contributing to the economy and food security. However, its perennial nature makes it sensitive climate variability, particularly extreme events that affect productivity. This study evaluated impacts of climatic on productivity dwarf green northeastern Pará, analyzing rainy (PC—December July) less (PMC—August November) periods between 2015 2023. Meteorological experimental data were used, including variables such as...

10.3390/agriengineering7020033 article EN cc-by AgriEngineering 2025-01-30

In spaced crop systems, understanding the interactions between different types of vegetation in agroecosystem and solar radiation is essential for surface dynamics. This study aimed to both seasonally spatially quantify characterize components balance cultivation green dwarf coconut. The experiment was conducted Santa Izabel do Pará, Brazil, monitored following meteorological parameters: rainfall, incident global (Rg), net (Rn). Landsat 8 satellite images were obtained 2021 2023, estimates...

10.3390/agriengineering7030088 article EN cc-by AgriEngineering 2025-03-19

ABSTRACT Understanding the green dwarf coconut palm development is essential to improve its management. This study aimed characterize and understand seasonality of yield under rainfed irrigated conditions in northeastern region Pará state, Brazil. The longitudinal transverse diameters, fruit mass yield, addition number live leaves, bunches, fruits bunches nº 11 14 female fowers were monitored. coconuts between 20 22 showed larger dimensions biomass (fresh dry). partition production...

10.1590/1983-40632024v5477037 article EN cc-by Pesquisa Agropecuária Tropical 2024-01-01

Inadequate management of the irrigation system has compromised yield and favoured degradation waste water resources. To ensure efficient management, providing increases, sustainability in use resources reduction production costs, studies about demand coconut palms are needed. The objective this study was to determine energy partition, crop evapotranspiration (ETc), simple coefficients (Kc) green dwarf Santa Izabel do Pará, Brazil. experiment carried out a plantation at Reunidas Sococo Farm,...

10.1590/1678-4499.20230160 article EN Bragantia 2024-01-01

Evapotranspiration is an important process for nature and human activities that involve the soil-plant-atmosphere complex, knowledge about topic of evapotranspiration crucial. The MATOPIBA region occupies areas states Maranhão, Tocantins, Piauí Bahia a significant part Cerrado region. Currently, this has been undergoing major changes in its vegetation cover caused by opening implementation agricultural crops. In sense, objective review was to discuss native Cerrado, as well present...

10.26848/rbgf.v16.1.p050-062 article PT cc-by Revista Brasileira de Geografia Física 2023-01-05

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,...

10.1590/1807-1929/agriambi.v28n2e272180 article EN cc-by Revista Brasileira de Engenharia Agrícola e Ambiental 2024-01-05

ABSTRACT: The growing demand for coconut water has led to the expansion of irrigated green dwarf cultivation; however, inefficient use contributed degradation and waste resources, making fundamental studies aiming optimize water. objective this study was determine physical productivity palms under climatic conditions Santa Izabel do Pará, eastern Amazonia, Brazil. experiment carried out from 2020 2021, in a plantation spaced 7.5 m x triangle, at Fazenda Reunidas Sococo, with an area...

10.1590/0103-8478cr20230416 article EN cc-by Ciência Rural 2024-01-01

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...

10.1590/1807-1929/agriambi.v27n8p618-624 article EN cc-by Revista Brasileira de Engenharia Agrícola e Ambiental 2023-05-15

The objective of this study was to analyze the seasonal behavior vegetation cover and its response variation meteorological elements in microregion Tomé-Açu, Eastern Amazon. area refers Pará. MODIS sensor images were processed analyzed on Google Earth Engine QGIS 3.18.1 software apply NDVI, EVI LAI indices. Results showed that Microregion Tomé-Açu has well-defined seasonality, with evident indices throughout year. three indexes higher values dry season period lower rainy Seasonality a...

10.11137/1982-3908_2023_46_53630 article EN cc-by Anuário do Instituto de Geociências 2023-05-17

A caracterização climática de uma região permite a recomendação e determinação um melhor manejo culturas agrícolas. Nesse sentido, objetivou-se identificar mudanças na classificação aptidão agroclimática da cidade Bom Jesus-Piauí, em diferentes cenários climáticos. O município integra do Semiárido Piauiense, possuindo clima quente úmido. Na composição balanço hídrico climatológico (BHC), calculado pelo método Thornthwaite & Mather, utilizaram-se os conjuntos dados das normais...

10.24221/jeap.5.1.2020.2801.038-048 article PT Journal of Environmental Analysis and Progress 2020-01-13

The objective of this work was to characterize the fractionation Photosynthetically Active Radiation (PAR) and its interaction with vegetation cover a portion Seasonally Dry Tropical Forest at end rainy season in Northeast Brazil. leaf area index correlated each component PAR radiation balance find best fit models. Second-order polynomial models were used identify relationship between components LAI. It observed that reflected, absorbed, transmitted, reflected by soil absorbed canopy varied...

10.26848/rbgf.v14.4.p2486-2508 article EN Revista Brasileira de Geografia Física 2021-08-23

Phenological processes are strongly affected by environmental conditions. In this study we investigate the phenological patterns of six tree/shrub species in three Caatinga fragments and analyze influence rainfall air temperature on these processes. Circular statistics was used to vegetative reproductive phenophases over 12 months (dry rainy seasons) years 2016 2017 2018 2019. Spearman's linear correlation test (r) applied verify meteorological variables two stages for each species. All...

10.1590/2179-8087-floram-2021-0032 article EN cc-by Floresta e Ambiente 2022-01-01

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...

10.3390/w15061073 article EN Water 2023-03-10

Áreas agrícolas vêm se intensificando no Estado do Piauí, esse desenvolvimento resulta em danos à vegetação nativa, causando impactos ambientais. Estudos que avaliem esses impactos, são de extrema relevância para quantificar as modificações causadas na superfície. Assim, objetivou-se identificar mudanças da cobertura solo e avaliar seus balanço radiação, índices temperatura superfície área expansão agrícola sudoeste Piauí. A avaliada está inserida município Baixa Grande Ribeiro, utilizou-se...

10.21680/2447-3359.2021v7n1id19704 article PT cc-by-nc-sa Revista de Geociências do Nordeste 2021-03-17

Os estudos morfométricos auxiliam no planejamento e gerenciamento de microbacias hidrográficas, determinando os parâmetros fisiográficos, relevo drenagem para avaliar o comportamento hidrológico da bacia. O presente estudo teve por objetivo caracterizar a morfometria microbacia hidrográfica do Açude Grande Caraúbas/RN. Foram utilizados delimitação automática bacia Modelo Digital Elevação (MDE), partir projeto TOPODATA, obtido junto ao Instituto Pesquisas Espaciais (INPE) utilizado SIG...

10.26848/rbgf.v15.1.p429-442 article PT Revista Brasileira de Geografia Física 2022-03-23

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...

10.3390/horticulturae8040335 article EN cc-by Horticulturae 2022-04-15

As espécies da família Cactaceae se destacam em razão de sua composição nutricional e ocorrência distintas partes do mundo. No entanto, o uso cactáceas como plantas alimentícias não convencionais (PANCs) ainda é pouco conhecido. Assim, objetivou-se investigar, a partir uma revisão sistemática, química mineral, além análise sensorial duas (Pereskia aculeata Pilosocereus gounellei) PANCs. Para tanto, bases dados foram consultadas onze artigos publicados nos últimos 10 anos (2012-2022)...

10.33448/rsd-v11i8.31289 article PT Research Society and Development 2022-06-24

O entendimento da complexidade dinâmica de trocas calor entre a vegetação e atmosfera é crucial para estudos meteorológicos, tendo em vista que alteração nos fluxos superfície pode ocasionar uma modificação climática. Dessa forma, objetivou-se caracterizar quantificar os componentes do balanço energia, bem como, verificar se heterogeneidade Caatinga possui influência no mesmo, partir das frações distintas, município Bom Jesus, Piauí. integra região Semiárido Piauiense, possuindo clima quente...

10.29150/jhrs.v9.3.p131-137 article PT cc-by Journal of Hyperspectral Remote Sensing 2019-12-11

Resumo Objetivou-se avaliar a adaptação de cultivares alface com base na metodologia dos graus-dia, em estufa, no vale do Gurguéia. O experimento foi conduzido ambiente protegido, Universidade Federal Piauí - UFPI/CPCE. delineamento adotado blocos ao acaso, sendo os tratamentos alface. As utilizadas foram: Simpson, Bruna, Palmas e Grand Rapids TBR. Os dados meteorológicos (temperatura ar, umidade relativa, pressão atmosférica, velocidade ventos precipitação) foram obtidos uma estação...

10.1590/0102-7786344064 article PT cc-by Revista Brasileira de Meteorologia 2019-12-01
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