Soil fauna under eucalypt stands of different ages in the Savanna of Piauí

Autores

  • Catharina Teixeira Cortez Mestando em Agronomia, Universidade Federal do Piauí, Campus Ministro Petrônio Portela, CEP: 60049-550, Teresina, PI,
  • Leovanio Rodrigues Barbosa Mestrando em Solos e Nutrição de Plantas, Universidade Federal do Piauí, Campus Cinobelina Elvas, CEP: 64.030370, Bom Jesus, PI.
  • Gildean Portela Morais Mestrando em Solos e Nutrição de Plantas, Universidade Federal do Ceará, Campus Pici, CEP: 60440-554, Fortaleza, CE
  • Luís Alfredo Pinheiro Leal Nunes Professor Associado, Universidade Federal do Piauí; Campus Ministro Petrônio Portela, CEP: 60049-550, Teresina, PI,
  • Ademir Sérgio Ferreira de Araújo Professor Associado, Universidade Federal do Piauí; Campus Ministro Petrônio Portela, CEP: 60049-550, Teresina, PI,
  • Maria Elisabeth Fernandes Correia Pesquisadora do Embrapa Agrobiologia. CEP 23890-000, Seropédica, RJ

DOI:

https://doi.org/10.15361/1984-5529.2015v43n3p280-286

Resumo

The reforestation with eucalyptus has increased significantly in the Brazilian Savanah and it can promote changes on soil biological properties, mainly soil fauna. Thus, the aim of this study was to evaluate the com­position of soil fauna in areas with Eucalyptus plantations of different ages compared with native savanna. The study was conducted in Eucalytptus plantations aged one, two, three and four years and area with native forest was taken as reference. Soil fauna was collected in the dry and rainy season to evaluate the number of individuals from different taxonomic groups, richness, uniformity and diversity. The highest num­ber of soil fauna was found in eucalyptus plantations with one year old at both seasons. However, the rich­ness did not differ between seasons. In areas where with eucalyptus plantations with one and two years old showed 90% of individuals represented by Coleoptera and Formicidae, which contributed for decreasing in fauna uniformity. The implantation of Eucalyptus early reduced the diversity and uniformity of soil fauna; however, there was a recovery of this biological attribute after two years of reforestation.

Biografia do Autor

Luís Alfredo Pinheiro Leal Nunes, Professor Associado, Universidade Federal do Piauí; Campus Ministro Petrônio Portela, CEP: 60049-550, Teresina, PI,

Departamento de Engenharia Agrícola e Solos

Publicado

08/07/2015

Edição

Seção

Solos e Nutrição de Plantas - Soils and Plant Nutrition