Please use this identifier to cite or link to this item:
Title: Biomass and primary-production of herbaceous plant communities in the Amazon floodplain
Authors: Junk, Wolfgang Johannes
Piedade, Maria Teresa Fernandez
Keywords: Floodplain
Primary Production
Brazil, Amazon River
Brazil, Manaus
South America, Amazonia
Hymenachne Amplexicaulis
Luziola Spruceana
Oryza Perennis
Paspalum Fasciculatum
Paspalum Repens
Issue Date: 1993
metadata.dc.publisher.journal: Hydrobiologia
metadata.dc.relation.ispartof: Volume 263, Número 3, Pags. 155-162
Abstract: The increase in biomass of different aquatic and terrestrial herbaceous plant communities was measured during various growth periods in the Amazon floodplain near Manaus. Maximum biomass varied from 4-11.2 t ha-1 dry weight in mixed annual terrestrial communities to 6-23 t ha-1 in aquatic annual species (Paspalum repens, Oryza perennis, Luziola spruceana and Hymenachne amplexicaulis) and 15.6-57.6 t ha-1 in communities of the perennial species Paspalum fasciculatum. Cumulative biomass of 3 successively growing annual species reached 30 t ha-1 a-1. Net primary production is considerably higher than maximum biomass. Paspalum fasciculatum reached 70 t during a growth period of 8 months. If one considers for annual species a monthly loss of 10-25% of the biomass, then net primary production in areas with three successive macrophyte communities and a cumulative maximum biomass of 30 t ha-1 is estimated to reach up to 50 t ha-1 a-1. Annual P/B ratio may reach about 3. © 1993 Kluwer Academic Publishers.
metadata.dc.identifier.doi: 10.1007/BF00006266
Appears in Collections:Artigos

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.