摘要
采集2018年和2019年抚河故支断面的沉积物,测定其pH、总氮、总磷和有机质等指标,采用有机指数和有机氮污染指数法、单因子污染指数法和综合污染指数评价法对其污染程度进行评价。结果显示,2018年抚河沉积物中总氮、总磷和有机质平均含量分别为2.00、1.17和21.62 g/kg;2019年抚河沉积物中总氮、总磷和有机质平均含量分别为1.85、0.84和16.25 g/kg;两年的有机污染指数显示整体处于较清洁,但有机氮污染指数显示85%处于有机氮污染,总氮和总磷污染指数显示位点整体处于重度污染。综合污染指数(FF)评价结果均为重度污染。分析评价沉积物的污染情况,可为河道的污染及防治提供科学依据和支撑。
Sediments in the old branch of Fuhe River were collected in 2018 and 2019.The pH,content of total nitrogen(TN),total phosphorus(TP)and organic matter(OM)were measured.The pollution level of sediments was evaluated via organic and organic nitrogen index,single factor pollution index and comprehensive pollution index.The results showed that:the average contents of TN,TP and OM in 2018 were 2.00,1.17 and 21.62 g/kg.The average contents of TN,TP and OM in 2019 were 1.85,0.84 and 16.25 g/kg.The organic pollution index showed that most were classified as clean level,the evaluation of organic nitrogen pollution indexes showed that 85%sediments belong to organic nitrogen pollution.The single factor indexes showed most were in severe pollution in two years.And the comprehensive pollution indexes(FF)showed sediments were polluted heavily.Summing up sediment distribution and pollution characteristics can provide a scientific basis and support for river pollution prevention and control.
作者
向爱农
苏甜
刘方平
时红
廖伟
姜成名
XIANG Ai-nong;SU Tian;LIU Fang-ping;SHI Hong;LIAO Wei;JIANG Cheng-ming(Jiangxi Authority of Water Conservancy Project of the Yuanhuiqu, Xinyu 338000, Jiangxi Province, China;Jiangxi Center Station of Irrigation Experiment, Nanchang 330201, China)
出处
《中国农村水利水电》
北大核心
2020年第10期117-120,共4页
China Rural Water and Hydropower
基金
江西省重点研发计划项目(20171BBH80019)
江西省水利厅科技项目(KT201629)。
关键词
抚河故道
沉积物
有机氮污染
有机质
Fuhe River
sediment
organic nitrogen pollution
organic matter
作者简介
向爱农(1969-),男,高级工程师,主要从事水利工程建设与管理研究,E-mail:xan@gfpy.com;通讯作者:苏甜(1989-),女,工程师,硕士研究生,主要从事农村水环境研究,E-mail:leishist@163.com。
