太湖流域氮磷大气湿沉降特征研究  

Atmospheric Wet Deposition Characteristics of Nitrogen and Phosphorus Nutrients in Taihu Lake Basin

作　　者：王骏飞[1] 刘宁锴[1] 王燕[1] WANG Jun-fei;LIU Ning-kai;WANG Yan(Jiangsu Provincial Environmental Monitoring Center,Nanjing,Jiangsu 210036,China)

机构地区：[1]江苏省环境监测中心

出　　处：《污染防治技术》2019年第5期19-25,共7页Pollution Control Technology

基　　金：国家“十二五”水体污染控制与治理科技重大专项(2012ZX07101-001-02)

摘　　要：2013年6月-2014年5月,采集太湖流域6个测点的湿沉降样品,测定其中的氮磷含量,计算湿沉降率和年沉降量。研究表明,西部湖区的TN和NH4^+-N湿沉降浓度较其他湖区高,北部浓度TP湿沉降浓度较其他湖区高,不同形态N和TP的月均质量浓度均表现为冬季高,夏季最低,春秋季节不同形态N和TP沉降率高于其他季节。大气中总氮湿沉降输入太湖湖体的总量为3907.7t,总磷湿沉降输入太湖湖体的总量为61.77t,对太湖水环境影响及富营养化的贡献不容小视。In order to measure the nitrogen and phosphorus concentration,calculate the wet deposition rates and annual settlements,wet sediment samples were collected from 6 measuring points in Taihu Lake basin from June 2013 to May 2014.The results showed that the concentrations of TN and NH4^+-N in the western lake region were higher than others,the concentration of TP in the northern lake region was higher than others.The average mass concentrations of different forms of N and TP were both higher in winter and lower in summer,the settlement rates of different forms of N and TP in spring and autumn were higher than other seasons.The total amount of atmospheric TN and TP input to Taihu Lake is 3907.7 tons and 61.77 tons respectively.Their contribution to the water environment and eutrophication of Taihu Lake cannot be ignored.

关 键 词：太湖 氮磷湿沉降 沉降特征 

分 类 号：X51[环境科学与工程—环境工程]