Distribution and fluxes as macrodetritus of phosphorus in red mangroves, Sepetiba Bay, Brazil

    loading  Checking for direct PDF access through Ovid


The distribution and dynamics of phosphorus have been studied in the mangroves of Sepetiba Bay, Brazil. Leaf fall contributes 3.0 kg P ha−1yr−1 to the sediment. The total above ground biomass of the R. mangle stand was about 65.3 t ha−1, the P accumulation was 3.9 kg P ha−1 where 63% of the total P-biomass was accumulated in the leaves. The biomass of below ground roots was about 8.2 tha−1 and accumulated 16% of total P-biomass. Sediment contained 452 kg P ha−1 where P combined with calcium (P-Ca) was the main fraction (260 kg ha−1). The annual flux of P as litter fall was small (< 1%) compared to total P in the sediment reservoir. The annual export of P by macrodetritus corresponds to 0.05% of the total sediment reservoir.

Related Topics

    loading  Loading Related Articles