Lisímetros de pesagem para medidas de evapotranspiração em estufa

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorMartins, Izabela Paiva-
Autor(es): dc.creatorde Faria, Rogério Teixeira-
Autor(es): dc.creatorPalaretti, Luiz Fabiano-
Autor(es): dc.creatorDalri, Alexandre Barcellos-
Autor(es): dc.creatorOliverio, Carolina-
Autor(es): dc.creatorLibardi, Luis Guilherme Polizel-
Data de aceite: dc.date.accessioned2025-08-21T17:56:11Z-
Data de disponibilização: dc.date.available2025-08-21T17:56:11Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2017-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.15809/irriga.2017v22n4p715-722-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/228526-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/228526-
Descrição: dc.descriptionWeighing lysimeters are used for the purpose of determining water balance components, especially for evapotranspiration and evaporation. Within all know methods, lysimeter is considered the most accurate, but in order to obtain reliable data, their calibration must be performed in situ. The objective of this work was to calibrate 12 lysimeters to verify measurements’ linearity and the existence of hysteresis, besides evaluating the equipment's accuracy. The lysimeters had diameter and depth of 30 cm, with one load cell in each lysimeter for determination of mass variation, connected to a data acquisition and storage system. The calibration was performed by comparing the load and unload know mass (kg) with the load cell reading (mV). The calibration data were linear, presenting a significant mass correlation in response to voltage. The angular and linear coefficients varied from 762.78 to 1187.8 kg mV-1 and -499.99 to -798.00 kg, respectively. The absolute error ranged from 0.03 to 0.54, showing a high accuracy of the lysimeters. The accuracy for mass variation was 0.79 mm and the Willmott concordance index was 0.99, showing the good agreement between the estimated and observed values. It can be concluded that lysimeters are suitable for crop evapotranspiration determination.-
Descrição: dc.descriptionDepartamento de Engenharia Rural Universidade Estadual Paulista - Campus Jaboticabal, Via de Acesso Professor Paulo Donato Castelane, Vila Industrial-
Descrição: dc.descriptionDepartamento de Engenharia Rural Universidade Estadual Paulista - Campus Jaboticabal, Via de Acesso Professor Paulo Donato Castelane, Vila Industrial-
Formato: dc.format715-722-
Idioma: dc.languagept_BR-
Relação: dc.relationIRRIGA-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectLisimetry-
Palavras-chave: dc.subjectLoad cell-
Palavras-chave: dc.subjectWater balance-
Título: dc.titleLisímetros de pesagem para medidas de evapotranspiração em estufa-
Título: dc.titleWeighing lysimeters for greenhouse evapotraspiration measurements-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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