基于陆海统筹的渤海山东省近岸海域总氮总量控制研究

总氮为山东省渤海近岸海域总量控制的主要污染物，本文利用输出系数法评估了陆源污染物入海总量，研究了总氮陆源入海时空分布格局。结合山东省渤海近岸海水水质目标，运用入海负荷最优化法，本研究得到12条主要河流的总氮允许入海量为86,184 t/a，为达成渤海综合治理攻坚战的水质目标，总氮需减排60,505 t/a。基于陆海统筹考虑，本文分配了研究范围内各地市总氮削减量。本研究对有效改善山东省渤海近岸海域环境质量具有重要参考价值。

Study on total nitrogen quantity control in Shandong province coastal area of Bohai Sea based on land and sea coordination

In this paper, total nitrogen is determined as the main pollutant for total quantity control in the coastal area of Bohai Sea in Shandong province. The total quantity of land-based pollutants into the sea is evaluated by using the output coefficient method, and the source and spatial-temporal distribution pattern of land-based pollutants into the sea are clarified. Combined with the coastal water quality target, the allowable inflow of 12 main rivers is calculated to be 86,184 tons/year by using the optimization method of sea load. In order to achieve the water quality goal of Bohai Sea pollution control, it is necessary to reduce the emission by 60,505 tons/year. Plan the land and sea as a whole, the total nitrogen reduction of cities in the study area was allocated. This study has important reference value for effectively improving the environmental quality of Bohai Coastal Waters in Shandong province.