LAUSR

Abstract Coastline resources are a typical non-renewable resource, while Jiangsu Province has abundant coastal resources. In this paper, we constructs the optimal utilization model of coastal resources by means of Lagrangian function, and explains the model from the perspective of economic theory. On the basis of the above, this paper uses the optimal utilization model to analyze the resource utilization of coastline in Jiangsu Province, and finally draws the following conclusions: (1) Jiangsu provincial government should compare the gains from the development of the coastline resources with the income of other types of investment projects, in order to achieve the maximum effectiveness of limited funds. (2) Jiangsu provincial government should evaluate the quality of coastline resources, and then divide the level of them. A reasonable number of high-quality coastline can be exploited, while low-quality coastline can be protected as a strategic reserve resource.