Journal
SCIENCE IN CHINA SERIES B-CHEMISTRY
Volume 44, Issue -, Pages 190-196Publisher
SCIENCE PRESS
DOI: 10.1007/BF02884827
Keywords
phosphorus; distribution; forms; tidal flat sediments; Yangtze Estuary
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The distribution and forms of phosphorus (P) were investigated in the tidal flat sediments of the Yangtze Estuary and coast. The total P contents in surface sediments range from 18.0 to 31.4 mu mol.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. P bonded with Ca(Ca-P) is the dominant mineral form in all surface sediments, organic P(Org-P) is lower. Most P is of unstable form, suggesting that P has larger potential activity. P accumulation is the main behavior process between water and sediment in the coastal environment of the Yangtze Estuary.
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