水体沉积物磷形态及释放风险分析——以苏州工业园水体为例  

Phosphorus Forms and Release Risk of Waterbody Sediment from Suzhou Industrial Park

作　　者：李振国 余光辉 张勇 宋焱 蒋梦娇 

机构地区：[1]湖南科技大学资源环境与安全工程学院,湖南湘潭411201

出　　处：《中国环境管理干部学院学报》2017年第6期46-49,共4页Journal of Environmental Management College of China

基　　金：国家自然科学基金项目<沉水植物根际效应对沉积物磷稳定性的调控机制>(41403070);湖南省教育厅资助科研项目<沉水植物对水-沉积物界面磷迁移的调控机制>(16A068);地理空间信息湖南省工程实验室开放基金资助项目<湘江流域土壤;沉积物和作物的重金属污染调查>(2014GISNELJJ003)

摘　　要：应用SMT法测定了苏州工业园内水体沉积物各形态磷的含量,并对沉积物磷的释放风险进行了评估。结果表明园区内水体沉积物磷污染较严重,吴淞江沉积物中总磷(TP)含量最高,达到了1 604.59 mg/kg;沉积物中磷主要赋存形态为生物可利用磷,其中金鸡湖沉积物中生物可利用磷占比最高,占总磷含量的59.59%,湖泊水体流动性较弱,存在非常大的释放风险。The content of different forms of phosphorus in water sediment from Suzhou Industrial Park was determined by SMT method, and the release risk of phosphorus in sediment was evalua-ted. The results showed that the sedimental phosphorus pollution was more serious, the total phos-phorus （ TP） in the sediments of Wusong River was the highest, reached 1 604.59 mg/ kg. The main forms of phosphorus in sediments were bio -available phosphorus, and the highest proportion of bio-available phosphorus was found in the sediments of Jinji Lake, accounting for 59.59% of TP.

关 键 词：沉积物 磷形态 生物可利用磷 释放风险 苏州工业园 

分 类 号：X832[环境科学与工程—环境工程]