十五里河底泥磷形态和磷释放分析  

Analysis of Phosphorus Forms and Phosphorus Release from Bottom Mud of Shiwuli River

作　　者：孙倩倩[1] 方涛[1] 笪春年[1] Sun Qianqian;Fang Tao;Da Chunnian(School of Biological Food and Environment,Hefei University,Hefei 230000,China)

机构地区：[1]合肥学院生物食品与环境学院,安徽合肥230000

出　　处：《黄山学院学报》2021年第5期81-83,共3页Journal of Huangshan University

摘　　要：采用SMT分离分析法,对十五里河底泥磷元素进行分级提取,分析底泥磷的形态特征与空间特征;并模拟在静态条件下,不同环境条件上覆水体对河流湖泊底泥磷释放过程的影响,结果表明十五里河TP含量为85.78-265.26mg/kg。对底泥中的磷进行形态分析,各形态磷平均浓度高低顺序为:IP>Or-P>Ca-P>(Al+Fe)-P>Exch-P,溶解氧对底泥中磷释放的影响较为显著,温度和pH对底泥中磷释放的影响次之。其中Or-P、(Al+Fe)-P受环境影响较大,而Ca-P相对比较稳定。Using SMT separation and analysis method,sediment of Shiwuli river is extracted by classification,and the morphological and spatial characteristics of phosphorus in the bottom mud were analyzed;The results show that the TP content of Shiwuli river is 85.78-265.26mg/kg.Through the morphological analysis of phosphorus in sediment,the order of average concentration of phosphorus in each form is:IP>or-p>Ca-P>(Al+Fe)-P>exch-p.The effect of dissolved oxygen on phosphorus release in sediment is more significant,followed by temperature and pH.Among them,or-p,(Al+Fe)-P is greatly affected by the environment,while Ca-P is relatively stable.

关 键 词：十五里河 底泥 磷形态 环境因素 

分 类 号：X824[环境科学与工程—环境工程]