CARACTERIZAÇÃO DOS SOLOS E LIMITAÇÕES DE USO EM UMA TOPOSSEQUÊNCIA NA BAIXADA LITORÂNEA FLUMINENSE, RJ

• DOI: 10.22533/at.ed.1781917103

• Palavras-chave: Susceptibilidade a erosão; Solos arenosos; Drenagem

• Keywords: Soil erosion; Sandy soils; Drainage

• Abstract:

  Baixada Fluminense region is

  inserted in the “Mar de Morros” Domain, and

  the topography is one of the main factors

  Características do Solo e sua Interação com as Plantas 2 Capítulo 3 26

  responsible for soil variability. In addition, the parente material, basically acid rocks,

  strongly influences soil attributes. The objective of this study was to characterize the soil

  attributes of a toposequence in the Baixada Fluminense, to interpret the main limitations

  of land use, as well recommendations to minimize soil degradation. A toposequence

  was selected and trenches were opened at the positions shoulder (P1), backslope

  (P2), footslope (P3) and toeslope (P4). Morphological description and analysis of

  physical and chemical attributes were performed. Soils have low fertility due to the

  nature of the parent material; high susceptibility to erosion associated with textural

  gradient; low water storage capacity and cation retention due to the predominance of

  sandy texture and; oxygen deficiency in the lowland under poor drainage condition. The

  main recommended practices are the cultivation of perennial crops and maintenance

  of mulch, minimizing the erosion processes; organic matter management, increasing

  cation and water retention; cultivation of plants adapted to poor drainage condition and/

  or implementation of drainage systems.

• Número de páginas: 15