关键词: 共生理论, Logistic模型, 经济生态系统, 沿海11省市

Abstract:

With the rapid development of China’s marine economy, a large number of human and capital flocked to the coastal area, which also resulted in the destruction of the marine ecological environment. Despite the response measures have been taken, but still with little success. Therefore, it is of great practical significance which could guide the economic and ecological construction of coastal areas in China to explore the internal mechanism between the marine economic development and the marine ecological construction. The marine composite system has both economic and ecological attributes, which can be regarded as a community(symbiosis environment) of two “populations” including marine economy and marine ecology(symbiotic unit), and the input of human capital will change the flow of elements(symbiotic matrix) between marine economy and marine ecology when it raises the density of one “population” which leading the symbiosis theory has its rationality in the study of the interaction between marine economy and marine ecology. Compared to the grasp of marine economy and ecological coordination degree on the whole, the calculation of symbiotic pattern can not only distinguish the development model of the marine composite system on the whole, but also can analyze the influence of marine economy and ecology due to the development model of symbiosis, to clear the direction of future development. In this article, the Pressure-State-Impact-Response(PSIR) model of marine composite has been established to evaluate the level of marine ecology, marine economy, and marine environmental capacity. We find that the ecological level and economic level of eleven provinces and cities in China’s coastal area are mostly steady and rising, and the environmental capacity remains basically stable from 2004 to 2013. On this basis, the symbiosis model of marine ecology and marine economy is discussed based on the Logistic model, and the results show that Tianjin and Shanghai have been out of resource demand model, and there marine economic and ecological symbiotic coefficient is less significant; In other nine provinces, Hebei, Jiangsu, Guangxi and Hainan are in reverse symbiosis patterns, Liaoning and Shandong, are in individual development patterns, while Zhejiang and Guangdong, showing the ecological benefit of commensalism patterns, and Fujian is economic suffer partial interest symbiosis pattern. Overall, China’s marine ecology and marine economic development still remain in the restricted or isolated development stage, especially the situation which achieving the promotion of marine economy by sacrificing marine ecological development is pervasive, and marine ecological construction can not support the development of marine economy effectively. At last, this article puts forward some relevant policy suggestions according to the marine economic and ecological symbiotic model, in order to provide theoretical basis for the future economic and ecological development in coastal provinces and cities.

Key words: symbiotic theory, logistic model, economic ecosystem, 11 coastal provinces and cities