摘要
选取pH、DO、CODCr、TN、TP等水质指标近10a的监测数据,采用单因子指数及内梅罗指数法,对东昌湖六湖区水质动态变化进行了分析研究。结果表明:pH、DO单因子指数在调查年度内呈波动中下降趋势,且均满足IV类水水质标准;TN、TP、CODCr三项指标单因子指数较大,对湖区水体质量影响较大,是造成东昌湖水体质量变化的主要原因,特别是TN、TP;内梅罗指数呈波动中下降趋势,表明东昌湖水质近10a内在逐步改善。最后在认真分析东昌湖水质动态变化状况的基础上,进一步提出了针对性的防治建议。
Dynamic changes of water quality of Dongchang Lake were analyzed according to nearly a decade of monitoring data of pH, DO, CODer, TN, and TP by using single factor index and Nemerow index method. The results showed below： the single factor index of pH and DO showed gradual upward trend and were in accordance with Class IV standard. The single factor index of CODcr, TN and TP were large and they had an important effect on dynamic changes of water quality of Dongchang Lake, especially TN and TP. Nemerow index displayed fluctuating downward trend, which demonstrated that water quality of Dongchang Lake gradually improved during 2001-2010. Finally, based on analyzing the condition of Dongchang Lake water quality dynamic changes carefully, further targeted prevention and treatment recommendations were put forward.
出处
《海洋湖沼通报》
CSCD
北大核心
2013年第1期181-186,共6页
Transactions of Oceanology and Limnology
基金
国家水体污染控制与治理科技重大专项(2009ZX07106-03)
聊城大学大学生科技文化创新项目(SRT11071HJ2
SF2012076
SF2012077
SF2012090)资助
关键词
东昌湖
水质动态变化
成因分析
Dongchang Lake
dynamic changes of water quality
cause analysis
