Phosphorus and organic carbon in the sediments of a polluted subtropical estuary,and the influence of coastal reclamation |
| |
| Authors: | GB Thompson SK Yeung |
| |
| Institution: | Fisheries Research Station, Aberdeen, Hong Kong |
| |
| Abstract: | In July 1978, total phosphorus and organic carbon were determined in the sediments of Tolo Harbour, a sewage-polluted estuary in north-east Hong Kong. Concentrations were correlated with % silt-clay in each of three areas. Phosphorus concentrations were highest in central Tolo Harbour, lower by about 1.5μg at. P g?1 in the outer estuary, Tolo Channel, and lowest in the polluted inner reaches near large coastal reclamations. The latter values, about 3.0 μg at. P g?1 lower than in central Tolo Harbour, might reflect a selective adsorption of phosphate by reclamation sediments. Organic carbon concentrations were high in the inner reaches and decreased towards the outer channel. Correlations between phosphorus and organic carbon were compared with a published correlation for the east coast of England: in Hong Kong, phosphorus concentrations showed a smaller increase as organic carbon increased, and reached only one-third of the English values as organic carbon approached 2.0%. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
