Multivariate analysis of soil fauna under different soil tillage and crop management systems

• Autor(es):

  Baretta, Dilmar (Escola Superior de Agricultura Luiz de Queiroz. Dep. de Solos e Nutrição de Plantas);

  Mafra, Álvaro Luiz (Universidade do Estado de Santa Catarina. Centro de Ciências Agroveterinárias);

  Santos, Julio Cesar Pires (Universidade do Estado de Santa Catarina. Centro de Ciências Agroveterinárias);

  Amarante, Cassandro Vidal Talamini do (Universidade do Estado de Santa Catarina. Centro de Ciências Agroveterinárias);

  Bertol, Ildegardis (Universidade do Estado de Santa Catarina. Centro de Ciências Agroveterinárias).

• Fonte:

  Pesquisa Agropecuária Brasileira; volume 41, número 11, páginas 1675-1679. Novembro 2006.

• Assuntos:

  biodiversity;

  bioindicators;

  no-tillage;

  conventional tillage;

  mesofauna;

  macrofauna.

• Resumo:

  The objective of this work was to evaluate the effect of different soil tillage and crop management systems on soil fauna groups, by means of multivariate analysis. In the canonical discriminant analysis the conservation soil management systems with crop succession were discriminated in relation to other treatments with crop rotation. The groups Acarina, Hymenoptera, Isopoda, and Collembola, and the Shannon index (H) showed the highest contribution for the discrimination between treatments. The correspondence analysis showed a strong association between Acarina and Hymenoptera groups with the treatment no-tillage with crop succession, and between Collembola group with the conventional tillage system.

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