Title:	The function of the soil macrofauna in decomposition processes in central Amazonian polyculture systems and forests.
Authors:	HOFER, H. BECK, L. FORSTER, B. GARCIA, M. HANAGARTH, W. LUIZAO, F. LUIZAO, R. MARTIUS, C. MORAIS, J. W. ROMBKE, J.
Affiliation:	Staatlisches Museum fur Naturkunde Karlsruhe; ECT Oekotoxikologie GmbH; Embrapa Amazonia Ocidental; INPA; Center for Development and Research-ZEF.
Date Issued:	2000
Citation:	In: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS, 2000, Hamburg. Program and abstracts... Hamburg: University, 2000.
Pages:	p. 26.
Description:	A study of macrofauna and decompositon in three central Amazonian ecosystems (a primary and a secondary forest and tow polyculture tree plantations) has shown the high importance of the macrofauna for the litter decompostion. Macrofauna biomass was highest in the primary forest and lowest in the secondary forest. It differed strongly between the two polyculture areas, probably due to different microclimatic conditions near the ground as influenced principally by density of secondary vegetation (cover) and shading by the neighboring forest. Litter decompositon in the central Amazon polycultures follows the same principles than in primary forest, e.g. the macrofauna regulates the decompostion rates. However the structure of the decomposer community differs clearly and lower decomposition rates and higher C/N-ratios show that the fauna in anthropogenic systems does not reach the same efficiency in decomposition and nutrient transfer.
Thesagro:	Biomassa Deterioração do Solo Fauna Edáfica Floresta Tropical Úmida Serapilheira Recuperação do Solo
NAL Thesaurus:	environmental degradation biomass forest litter soil fauna tropical rain forests
Keywords:	Brasil Amazonas Manaus Reclamation
Type of Material:	Resumo em anais e proceedings
Access:	openAccess
Appears in Collections:	Resumo em anais de congresso (CPAA)