Study On Emergy Analysis And Sustainability Development Of The Fishery Ecological System

Emergy analysis is one of an important ecological value measure theory and the economic evaluation of ecological system, and it is helpful for the adjustment of the relationship between ecological environment and economic development, can be used to scientific evaluation and rational utilization of natural resources, the results of economic development is great significance and has a strong guiding role to policy formulation as well as to predict the future development of the ecosystem.Firstly, paper is starting from the research background, then briefly elaborates the situation and the problems of fisheries development, and reviews the fishery ecosystem research progress at home and abroad, points out that the emergy analysis is great significance to sustainable development research of fisheries ecological system. Lastly makes an objective evaluation the emergy analysis development and existing problems, determines the purpose and significance of this study.Secondly, on the basis of a brief overview of the sustainable problem in the regional ecosystem, the paper systematically introduces the process and the specific steps of the emergy analysis of the fishery ecological system, then based on the actual characteristics of the fishery ecological system in Fujian, draws the energy flow diagram of the regional fisheries ecosystem, sets up the index system of regional fisheries ecological system. Combining with the characteristics of fishery production and the acquired data, and classify the value index respectively for expressing the fishery environment foundation level, fisheries economic development level, the fishermen living standard situation, thus for the development of fishery ecosystem comprehensive evaluation.Again, fishery ecological system in Fujian province as the research case, from fishery natural foundation level, fishery economy development level, fishermen living standard three angles of the ecosystem fishery in Fujian province in 2002-2011 to dynamic research value, in order to understand the development and the status quo of fisheries ecological system in Fujian province.Then, introducing the phase diagram method to the fishery ecological system in Fujian province, this paper studies from resource line, sensitive line, sustainable line to render the development of the fishery ecosystem, analysis the resources structure and efficiency of the fishery eco-system, and forecast the development direction of system to explore the correct road for the future sustainable development.Finally, on the basis of emergy analysis and phase diagram analysis, summarizes the development present situation and problems of the fishery eco-system in Fujian province, and puts forward some corresponding that are beneficial to the policy advice for the healthy development of the system in a long time.