AVALIAÇÃO DA FERTILIDADE DO SOLO E DE HABITATS AQUÁTICOS NA AGROVILA DE MACAPAZINHO, CASTANHAL, PA

• Published in: Holos (Natal, RN) RN), 2021-01, Vol.37 (3), p.1-19
• Main Authors: R Cardoso, D F S, C Barbosa, I C Da, Pinheiro, V J F, da Silva, E R M, De L Rodrigues, R R
• Format: Article
• Language: Portuguese
• Subjects: Aquatic habitats; River banks; Rural areas; Soil fertility; Water resources
• ISSN: 1518-1634; 1807-1600
• DOI: 10.15628/holos.2021.10773

ABSTRACT In Pará, family agriculture brings jobs and income to the countryside, that's why there are several agrovillages in the state, such as Macapazinho located in the municipality of Castanhal, where the use of agricultural and water resources is routine for several families. The objective of this research was to evaluate results of fertility analysis in samples collected from agricultural areas of small farmers of the agrovillage and to verify anthropic changes in aquatic habitats on the banks of the Apeú river, a river that cuts through the agrovillage and serves as a resource for its inhabitants. Alterations in the natural habitats were observed in all five secsions of the Apeú River analyzed, especially the secsion in the center of the agrovillage of Macapazinho, which proved to be the most affected by anthropic activities KEYWORDS: Os parámetros determinados foram: pH (adimensional) que foi determinado por trés extratores diferentes H2O, KCl (1 mol.L-1) e CaCl (0,01 mol.L-1), condutividade elétrica (microsiemens por centímetro - mS.cm-1), umidade (grama por grama - g.g-1), acidez potencial (centimol de carga por quilograma - cmolc.kg-1), alumínio trocável (centimol de carga por quilograma - cmolc.kg-1), cálcio trocável (centimol de carga por quilograma - cmolc.kg-1), magnésio trocável (centimol de carga por quilograma - cmolc.kg-1), matéria orgánica (gramas por quilograma - g.kg-1) e granulometria.