Study on influence of reclamation of Tianjin Eco-City on marine environment
This paper collected the marine environmental monitoring data before and after the implementation of reclamation in the northern sea area encompassing Tianjin Eco-City.It examined the temporal and spatial distribution characteristics and investigated the impact of reclamation construction on the marine water environment combined with the implementation process of Tianjin Eco-City reclamation from 2010 to 2018.The results show that the ACI of the coastal waters north of Tianjin exhibits a downward trend during the whole reclamation cycle.The main pollutants in the north sea area of Tianjin are DIN,DIP and COD,and the content of heavy metals is not high.The input of pollutants from land source is the main source of pollutants in the pre-reclamation sea area,and the input of pollutants caused by the development activities in the adjacent sea area cannot be ignored.Reclamation leads to a decrease in the overall flow velocity of the sea area,and at the corners of the reclamation area,the diffusion conditions change sharply with the hydrological conditions,resulting in an increase in the dispersion of pollutant monitoring indicators in the sea area during the late reclamation period.
reclamationmarine environmentmathematical modelpollution controlpollution index
国家科技期刊平台
NSTL
万方数据
