Distribution and forms of phosphorus in tidal flat sediments of the Yangtze Estuary and coast

摘要

The distribution and forms of phosphorus (P) were investigated in the tidal flat sedi- ments of the Yangtze Estuary and coast. The total P contents in surface sediments range from 18.0 to 31.4 μmol · g~-1 along the southern coast. The spatial and temporal distribution of P in tidal flats is closely related to the location and pollution resources, especially in association with the variation of hydrodynamic conditions. Significant variations in the forms of P in different sites were observed.