Navegando por Assunto "Mangifera indica L."

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Acesso aberto (Open Access)
Estimativa da evapotranspiração em uma área de plantio de mangueira no nordeste do Pará: uma abordagem integrada com os métodos de Bowen e modelo METRIC-EEFLUX.
(Universidade Federal do Pará, 2024-03-22) MOREIRA, Antonio Carlos Novaes; SOUSA, Adriano Marlison Leão de; http://lattes.cnpq.br/4371199443425884; https://orcid.org/0000-0002-2809-5318
The research presents a comparative evaluation of the water consumption of mango in the Northeast region of Pará, highlighting the importance of evapotranspiration estimation for the study of the hydrological cycle and sustainability of agricultural. The use of traditional methods, such as the Bowen Ratio Method, and remote sensing techniques, specifically the METRIC EEFLUX model, are explored to estimate the crop’s Evapotranspiration. This revealed an influence of the Tommy Atkins mango orchard on the water dynamics in Cuiarana, Pará. The ETr varied notably between the crops, with an average daily consumption of 4.59 mm and 4.84 mm, respectively, for Crops 1 and 2. The study offers an in-depth understanding of the local hydrological cycle, with the orchard contributing about 185,958 m³ to the cycle. The analysis of ETr through METRIC-EEFLUX revealed notable spatial and temporal variability, with some discrepancies in relation to the Bowen method. Despite a strong positive correlation, METRIC EEFLUX tended to overestimate ETr. The performance of the METRIC-EEFLUX model was classified as “poor”, highlighting the need for continuous improvement and specific calibration for the Amazon region. The study emphasizes the need for continuous research to improve the accuracy of water estimates, providing valuable insights for the effective management of water resources.
Acesso aberto (Open Access)
Water requirement estimate for the reproductive period of mango orchads in the northeast of the state of Pará, Brasil
(Universidade Federal do Pará, 2016-09) SOUZA, Paulo Jorge de Oliveira Ponte de; RODRIGUES, Juliana Chagas; SOUSA, Adriano Marlisom Leão de; LIMA, Renata Trindade de; ROCHA, Edson José Paulino da; ORTEGA-FARIAS, Samuel
The aim of this study was to estimate the water consumption in mango orchard during its phenological stages in the northeastern of the State of Pará, Brazil. For this purpose, it was installed and instrumented a micrometeorological tower in a mango orchard, cv. Tommy Atkins, of 22 years old, with data collected during the crops of 2010/2011 and of 2011/2012. The actual crop evapotranspiration was estimated from the energy balance using the Bowen ratio technique. The crops were subjected to different weather conditions, consequently, some differences in the Bowen ration values were observed. The evapotranspiration suffered influences of meteorological conditions during the period. The actual crop evapotranspiration during its reproductive period ranged between 402.9 and 420 mm with a mean daily water consumption of 3.8 mm at flowering, of 4.25 mm at fruit fall, of 3.56 mm at fruit formation, of 3.0 mm at fruit maturation and of 3.73 mm for the whole period.