第 卷第 期 ， 41 the coordinated development of regional economy and the environment caused ， by the excessive standard of the pollution characteristics in the marine water environment a sewage outlet in the sea area of ， ， Yancheng City Jiangsu Province was taken as an example. From the perspective of land-sea collaborative control a two-dimensional ， ， tidal current mathematical model was adopted based on the response relationship of pollutant concentration field inorganic ， nitrogen and active phosphate were selected as the research objects the maximum allowable emissions of marine specific pollutants under proposed 90% quality assurance can be obtained. The allowable emissions for inorganic nitrogen and active ， ， phosphate were 196. 03 t /a and 254. 59 t /a respectively in the case of terrigenous pollutants into the sea emission reduction
