PHYSICAL-HYDRIC DYNAMICS OF A PEDOLOGICAL LATOSOL-NITOSOL SYSTEM

  • Vanderlei Leopold Magalhães Universidade Tecnológica Federal do Paraná
  • José Edézio da Cunha Universidade Estadual do Oeste do Paraná
  • Maria Teresa de Nóbrega Universidade Estadual de Maringá

Abstract

In order to comprehend the hydric dynamics of soils along the slopes, the research took place on a slope from Marechal Cândido Rondon, Paraná. Trenches were open to the macromorphological description, sample collection for physical, chemical and micromorphological analysis and quantification of hydraulic conductivity. In the top sector, Eutroferric Red Latosol was identified, and from the middle sector, the latosolic Distroferric Red Nitosol predominates. In micromorphological terms, the Ap and Bw horizons have presented two distinct types of arrangements: a continuous and/or discontinuous porphyric fabric with cavities and planar pores and other with enaulic fabric, with high connectivity - compound packing porosity. In the AB and nitic B horizons the enaulic fabric is less representative, prevailing the continuous porphyric fabrics, which make the pores less communicating. The Ap and Bw horizons have shown higher hydraulic conductivity, while AB and B nitic horizons had the lowest rates, reinforcing the notion that besides soil density, the pores arrangement directly interfereswith the hydric behavior of the pedological system.

Author Biographies

Vanderlei Leopold Magalhães, Universidade Tecnológica Federal do Paraná
Professor da Universidade Tecnológica Federal do Paraná - UTFPR, campus de Medianeira. Departamento de Ciências Biológicas e Ambientais. Av. Brasil, 4232, Parque Independência, CEP: 85884-000, Caixa-postal: 271, Medianeira, Paraná, Brasil. *Autor correspondente
José Edézio da Cunha, Universidade Estadual do Oeste do Paraná
Professor da Universidade Estadual do Oeste do Paraná - UNIOESTE, campus de Marechal Cândido Rondon. Programa de Pós-Graduação em Geografia. Rua Pernambuco, 1777, Centro, CEP: 85960-000, Marechal Cândido Rondon, Paraná, Brasil.
Maria Teresa de Nóbrega, Universidade Estadual de Maringá
Professora da Universidade Estadual de Maringá - UEM. Programa de Pós-Graduação em Geografia. Av. Colombo, 5790, Jd. Universitário Centro, CEP: 87020-900, Maringá, Paraná, Brasil
Published
15/09/2017
How to Cite
MAGALHÃES, Vanderlei Leopold; CUNHA, José Edézio da; NÓBREGA, Maria Teresa de. PHYSICAL-HYDRIC DYNAMICS OF A PEDOLOGICAL LATOSOL-NITOSOL SYSTEM. Mercator, Fortaleza, v. 16, sep. 2017. ISSN 1984-2201. Available at: <http://www.mercator.ufc.br/mercator/article/view/1809>. Date accessed: 06 apr. 2020. doi: https://doi.org/10.4215/rm2017.e16022.
Section
ARTICLES

Keywords

B nítico; B latossólico; Micromorfologia; Condutividade hidráulica; Nitic horizon; Latosolic B horizon; Micromorphology; Hydraulic conductivity; B nítico; B latosólico; Micromorfología; Conductividad hidráulica