During the"13th Five-Year Plan"period,the water quality of the coastal waters of Dalian City was good,and the concentration of inorganic nitrogen in the main pollution indicators showed an overall downward trend.But there was still an inorganic nitrogen pollution problem in some bays.On the basis of a comprehensive analysis of the spatial-temporal characteristics of water quality and inorganic nitrogen in coastal waters,the causes are analyzed in depth from the aspects of comprehensive management measures of sea areas,water quality of rivers entering the sea and the flux of pollutants into the sea,and geographical characteristics of bays.Practical prevention and control measures are proposed for continuous improvement of the environmental quality of sea areas.
关键词
近岸海域/时空特征/无机氮/防治措施
Key words
coastal waters/spatial-temporal characteristics/inorganic nitrogen/prevention and control measures
维普
万方数据