Application of the PSR Model to the Assessment of Island Ecosystem

Islands are one of the important parts of the ocean country,with their high economic value and equity value.It makes sense to strengthen the management and the protection of islands.The management of islands should be based on ecosystem,island ecosystem assessment is the precondition of island ecosystem-based management.At present,there isn't an integrated indicator system for island ecosystem assessment.In this paper,first,the characteristics of island ecosystem were described.Second,the concept and content of PSR model were discussed.Third,the functions of PSR model to the assessment of island ecosystem were analysed.Finally,an indicator system for island ecosystem assessment,which based on the PSR model was built up,through the principles of indicator system establishing.What have done in this paper may offer some references to further study.