应用SMT法对崇明村镇级河道沉积物中的磷形态进行了分析,揭示了沉积物中磷的形态分布及潜在转化趋势.结果表明,沉积物中的磷主要以无机磷(IP)的形态存在,占总磷(TP)的85％以上,有机磷(OP)的含量较低,仅为9.93％～18.45％；而在无机磷中,磷灰石态无机磷(AP)是主要的赋存形态,占IP的70％以上；pH与AP呈极显著正相关,是沉积物理化性质中的重要指标,对磷的潜在环境行为有重要影响.%The fraction distribution and potential transformation of Phosphorus ( P) in sediments of rivers in Chongming' s village were analyzed by dint of SMT method. The results showed that the inorganic phosphorus (IP) , accounting for more than 85% of Total P (TP), was the predominant fraction of total phosphorus (TP), while the organic phosphorus (OP) in TP only ranged from 9.93% to 18.45% ; while AP was main fractions in IP, over 88% ; pH value, of significant positive correlation to AP , would be important indexes on the physical and chemical properties of sediments, which impacted on the potential environmental behavior of P fractions.
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