TRANSFERABLE PHOSPHORUS IN SEDIMENTS OF THE HUANGHE RIVER ESTUARY'S ADJACENT WATERS

摘要

Based on a new idea for research on cycling of marine biogenic elements, this study showed that only the leachable form phosphorus in natural grain sizes marine sediments constitutes the transferable phosphorous in the sediments. The transferable phosphorus content in the natural grain sizes surface sediments in the Huanghe River estuary adjacent waters ranges from 58.5-69.8 μg/g, account- ing for only 9.1/100-11.0/100 of the total phosphorus content, whereas the leachable form ("transferable") phosphorus content in the sediment after it was totally ground into powder was found to be 454.8 - 529.2 μg/g, accounting for 73.4/100-89.1/100 of the total phosphorus.