EMBRAPA FLORESTAS | Soil macrofauna communities in various land use systems in Ponta Grossa, Paraná, Brazil

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Soil macrofauna communities were evaluated in in October 2012 and April of 2013 in a number of land use systems in Ponta Grossa county, Paraná state, Brazil. At the Fazenda Modelo managed by the Instituto Agronômico do Paraná (IAPAR), samples were taken in three land use systems as part of a long-term integrated production systems experiment initiated in 2006: 1) an agrosilvopastoral system with rows of Eucalyptus dunnii and annual grain cropping (maize, soybean) in the summer and Lolium multiflorum (Italian ryegrass) grazed pasture in the winter performed in the interrow; 2) an agropastoral system with grain cropping (maize, soybean) in the summer and grazed Italian ryegrass in the winter; 3) a permanent pasture of native grasses. Each of these systems was replicated 3 times, and eight samples were taken in each plot. At the Embrapa research station, two land uses were evaluated, with 24 samples taken in each area: 1) a minimum-tillage grain crop production system; and 2) a 20-year old Eucalyptus dunnii tree plantation. Samples were taken using the standard methodology of the Tropical Soil Biology and Fertility Programme (TSBF), where soil (down to 20 cm depth) and litter fauna were hand-sorted from monoliths of 25x25 cm, and the abundance of a total of 42 taxa was assessed.

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