Advances on ecosystem models of marine ecosystem and coastal engineering

Through previous studies,the main research method is obtained,by establishing ecosystem models based on the experiment and observation.In this paper,the marine ecosystem model research results have been summarized,and it is found that the primary productivity model is the main direction of the pure ecological model and the ecosystem dynamical model is a inevitable trend of the future marine ecosystem.Meanwhile,the largescale marine construction projects have made a great impact on marine ecosystems in our country,while related ecosystem impact forecasting model is still less,so it seems especially important to improve the marine ecosystem forecasting capacity in order to effectively reduce the ecosystem impact which the coastal construction projects make on.