摘要
对江苏省姜堰市溱湖水体中的氮磷含量进行了为期1年的调查研究。结果表明,溱湖总氮处于Ⅲ类水平,氨氮及总磷处于Ⅱ类水平,且在2012年上半年内氮磷浓度随时间下降,下半年则上升。溱湖国家湿地公园湖东区水域的氮磷浓度与流入湖东区入口处的氮磷浓度相比升高。上半年入水口氮磷浓度高于出水口,下半年则相反,全年入水口总氮、氨氮、总磷浓度均值分别为1.183 mg/L、0.274 mg/L、0.12mg/L,出水口均值分别为0.998 mg/L、0.237 mg/L、0.108 mg/L,溱湖湿地对水体中氮磷具有一定的去除作用。
The water quality of Qinhu Lake was monitored from January 2012 to December 2012. Annual mean concentration of total nitrogen （TN） was HI class level, concentration of total phosphorus （TP） and ammonia nitrogen （NI-I3-N） were II class level. Statistics also show that, the three indexes are decreasing gradually with time in the first half year, while rising in the second half year. The content of nitrogen and phosphorus in east area of Qinhu National Wetland Park are more than that in the entrance of east region. The content of nitrogen and phosphorus in water inlet is higher than that in water outlet in the first half year. Conversely, the content of nitrogen and phosphorus in water inlet is lower than that in water outlet in the second half year.Average concentration of TN, NHr-N and TP in water inlet were 1.183mgoL-4, 0.274mgoL4 and 0.12mgoL respectively, and those in water outlet were 0.998 mgoL-1, 0.237 mgoL-1 and 0.0 108 mgoL4 respectively. Thus, Qinhu Wetland plays a role to remove nitrogen and phosphorus in water of Qinhu Lake.
出处
《中国资源综合利用》
2013年第7期40-43,共4页
China Resources Comprehensive Utilization
基金
江苏省环境监测科研基金项目(1118)
江苏高校优势学科建设工程资助项目
关键词
溱湖湿地
氮磷
时空变化
qinhu wetland
nitrogen and Phosphorus
spatial and temporal changes
