The Marine Ecosystem Health Of Dalian Neptune Nine Island

With urbanization, the constant speed, fully reflects the’Port city developed due to port and port is used by the city’. The development of marine resources near-shore land, is rapidly rising, resulting in waste of resources, environmental pollution and other adverse consequences. Accompanied by island development activities gradually increased, the island ecosystem structure, function planning and utilization, trophic structure and ecological capacity of island ecosystems, biodiversity, human development activities, there has been a lot of ecological problems.Island ecosystem health faces a serious threat.To this end, to carry out this research work, is one of China Island Protection Act requirements of ecological protection to protect the island environment, is also the livelihood of the event, and marine research scholars, the focus of attention。It is no doubt that, for the rational development and use of the islandnatural resources, planning and environmental protection, and management is of great significance.The research contents of this paper include:1. The narrative of the island ecosystems and biodiversityThis paper shows the island ecosystem structure and characteristics, functions and role of the rational development and progress of the island natural resources, ecosystem health, and evaluation criteria.2. Island method of ecosystem health assessmentThis thesis research and comparison on the basis of the evaluation model was constructed index system suitable for the characteristics of island ecosystems. The system contains only water quality, sediment, biological, and other representative indicators, calculation and evaluation of the results of scientific and objective.3.The case studies of island ecosystem health assessmentThrough the case of Neptune nine island ecosystem health, using the island ecosystem health assessment model to calculate the health level of the island the status quo, the evaluation value of50.8, is an sub-health state.In summary, the evaluation of ecosystem health of the Neptune nine island, strengthens ecological protection of the island, the creation of the evaluation system, and proposed island development of constructive comments, in order to carry out the island ecological planning and strengthen the management of island ecosystems to provide important scientific basis.