Data/hora: 19/06/2024 21:50:02

Biblioteca(s): | Embrapa Florestas.
Data corrente: | 08/10/2008
Data da última atualização: | 08/10/2008
Autoria: | RIBEIRO, L. P.; GAMA-RODRIGUES, E. F.da; GAMA-RODRIGUES, A. C.
Título: | Chemical fertilization on soil and litter fauna in a reforested area in the North of Rio de Janeiro State, Brazil.
Ano de publicação: | 2008
Fonte/Imprenta: | In: 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.
Idioma: | Inglês

Conteúdo:

The 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 area

Categoria do assunto: | --
Registro original: | Embrapa Florestas (CNPF)
Exemplares: | CNPF - (43872-1) - UPE - PL - -- - CD0305 -  -  - DIS