SPATIAL VARIABILITY AND TEMPORARY QUALITY WELL WATER IN IRRIGATION FIELDS IN REGION SEMIARID

This study aimed to analyze the influence of variability space - time in the quality of groundwater in the Irrigated Perimeter of Baixo Acaraú. This study considered the waters of 10 deep wells used in irrigation Irrigated Lower Acaraú. The investigated parameters were HCO3- , Ca2+, Cl-, Mg2+, K+, N...

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Bibliographic Details
Published in:Revista brasileira de agricultura irrigada 2017-01, Vol.11 (2), p.1348
Main Authors: Leonaria Luna Silva de Carvalho, Claudivan Feitosa de Lacerda, Eunice Maia de Andrade, Fernando Bezerra Lopes, Júnior, Manoel Valnir, Moura de Carvalho, Clayton
Format: Article
Language:Portuguese
Subjects:
Agricultural management
Agrochemicals
Calcium
Chlorides
Cluster analysis
Collections
Composition
Deep wells
Dissolved solids
Fertilizers
Groundwater
Irrigation
Irrigation water
Leaching
Magnesium
Multivariate statistical analysis
pH effects
Salts
Seasonal variations
Seasonality
Soil
Spatial variations
Statistical analysis
Statistical methods
Variability
Water analysis
Water quality
Water sampling
Well water
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Summary:This study aimed to analyze the influence of variability space - time in the quality of groundwater in the Irrigated Perimeter of Baixo Acaraú. This study considered the waters of 10 deep wells used in irrigation Irrigated Lower Acaraú. The investigated parameters were HCO3- , Ca2+, Cl-, Mg2+, K+, Na+, SO42-, CE, pH, RAS, Dissolved Solids and Fe, with collections made in June 2015 and November 2015. In the determination of the hydrochemical composition, the water samples were grouped according to their degree of similarity, for that it was applied to the technique of multivariate statistical analysis of hierarchical grouping, using software SPSS 16.0. The cluster analysis formed 3 groups and the mean of the attributes were compared by the T test at the P
ISSN:1982-7679