02760naa a2200145 a 450000100080000000500110000800800410001910000190006024501190007926000090019852020320020770000280223970000260226777303210229313150992008-10-08       2008    bl uuuu     u00u1 u    #d1 aRIBEIRO, L. P.  aChemical fertilization on soil and litter fauna in a reforested area in the North of Rio de Janeiro State, Brazil.  c2008  aThe Brazilian soils has a rich biodiversity, however, due the deforestation and the continued use of those areas for agriculture and livestock, it is providing a wide range of modifications in soil physical, chemistry and biological properties modificating the natural habitat of soil micro, meso and macrofaunal communities. The objective of this work was study the influence of chemical fertilization on soil fauna abundance and diversity, giving emphasis to the communities of meso and macrofauna, in an area reforested with a leguminous specie (Acacia auriculiformes), Conceição de Macabu, RJ, Brazil. The experimental area has two plots of 36 m2, a plot used as control and second, was fertilized with simple superphosphate and potassium chloride. The soil and litter samples were transferred for a Berlese-Tüllgren funnels. The soil and litter fauna was analyzed under binocular glass. The animals in each soil and litter samples were identified at great taxonomic groups (class, order or family) and quantified. Two sampling were done with an interval of two months (March and May 2007), where it was observed in litter samples larger density (number of individuals for m2) in fertilized area (first collection: 36%, second: 64%). However, in the second sampling it was observed a density reduction in area without fertilization (54 for 46%). In the first soil sampling, the largest density was verified in area without fertilizer (58%), but in the second one these results were modified, happening an increase of individuals number in fertilized area (67%). The Shannon and Pielou indexes and the fauna richness showed that the diversity of groups found in those areas were homogenous without great modifications in this period. In spite of the small time of evaluation, it is possible to infer that the use of fertilization can modify the number of individuals. Besides, it is necessary to verify to what extention the use of chemical fertilization can alter the distribution of different groups in an recovery area1 aGAMA-RODRIGUES, E. F.da1 aGAMA-RODRIGUES, A. C.  tIn: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM.