Monetary Evaluation On Marine Environmental Capacity

Ocean plays an important role in the process of human society development, it not only provides wealth resources for human life and production, as well as broad space, but also provides a variety of human services in form of comfort, entertainment and many others functions. Accept and recycle waste (pollution) generated by human is one of the ocean's main functions. In a sense, marine environmental capacity is the most precious environmental resource that human gets from the ocean. Coastal waters are the closest area to the land, and have a close relationship with human activity. In the recent two decades of rapid economic development, urbanization, population growth and coastal zone migration, the pressure on coastal waters is more and more increasing while the marine environment capacity is more and more scarce. This dissertation gives a comprehensive study for the value of marine environmental capacity from theoretical analysis, evaluation methods, and case studies etc.In this dissertation, interdisciplinary approaches and methods are used. Based on the theories of Environmental Economics, Economics, Oceanography, Environmental Management, and Environmental Science etc, combined with approaches of reference research, data analysis, social research and case study, we discuss the evaluation methods and other related matters of marine environmental capacity, establish a evaluation system. Xiamen sea area has been selected as case study area. The main achievements of the dissertation are as follows:Firstly, define the definition of marine environmental capacity; analyze its characteristics which include resource-based, usefulness, renewable, scarcity, and distribution of heterogeneity. On this basis, use Labor value theory, Utility value theory, Existence value theory and Ecological value theory to discuss value existence, value composition and influencing factors of marine environmental capacity. At a given time, the main impact factors include natural factors, social factors, economic factors and technological factors. Secondly, for the specificity marine environmental capacity resource, propose three evaluation methods: the shadow price model, substitute market method and fuzzy comprehensive evaluation model, analysis and compare their advantages and disadvantages. On this basis, built evaluation system of marine environmental capacity includes substitute market method and fuzzy comprehensive evaluation model combined substitute market method.Thirdly, apply the built evaluation method of marine environmental capacity to Xiamen West Sea and Tong'an Bay case study. The result shows: the total value of marine environmental capacity in Xiamen West Sea and Tong'an Bay accounts for billion Yuan in one year and tens of billion Yuan in 50 years. As a renewable resource, marine environmental capacity can be sustainable if used reasonably and bring huge benefit for human being. This paper proposes related suggestions on how to use and protect marine environmental capacity based on the actual situation of Xiamen West Sea and Tong'an Bay.Fourthly, the dissertation tries to combine the fuzzy comprehensive evaluation model with substitute market method and has a useful discussion, illustrates the method is of certain operability. Compared with substitute market method, this model has advantages of considering different influencing factors and reflects the value change of these factors on marine environmental capacity in different times.