Primary production in papyrus (Cyperus papyrus L.) of Rubondo Island, Lake Victoria, Tanzania
2007
Mnaya, Bakari | Asaeda, Takashi | Kiwango, Yustina | Ayubu, Elisamehe
Above- and below-ground production and morphological characteristics of papyrus wetlands were measured at monthly intervals from July 2005 to June 2006 at Rubondo Island, Lake Victoria, Tanzania. The average value of live culm biomass (5,789 ± 435 g DW m-²) was higher than that of umbel biomass (2,902 ± 327 g DW m-²) by 50%. Root to rhizome means biomass value ratio was 1:1.8, rhizome biomass (4,144 ± 452 g DW m-²) being higher than roots biomass (2,254 ± 314 g DW m-²) by 45%. Direct proportion was observed between shoot density and culm-unit (culms and umbels) biomass. The average value of detritus/litter biomass (1,306 ± 315 g DW m-²) was less than total aerial biomass by 86%. The values of biomass are average of 12 sampling months from July 2005 to June 2006.
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