Assessment on land-sea coupling coordination development for the Jiaozhou Bay area under the background of land-sea coordination
The coastal zone is the core area of land-sea coordinated development,it is very important to evaluate the land-sea coupling coordination degree for the coastal zone in order to promote the implementation of the land-sea coordination strategy.This paper quantitatively evaluates the degree of land-sea coupling coordination development of the Jiaozhou Bay area by constructing an evaluation index system for the land-sea coupling coordination.The results show that:from 2007 to 2021,the comprehensive score of Jiaozhou Bay's land and sea subsystem showed an overall upward trend.By 2015,the comprehensive development capacity of the sea area exceeded the land area and became the main force for land and marine development.The coordination level of land-sea development in Jiaozhou Bay has transitioned from"barely-coordinated development"to"well-coordinated development",and from"land-dominated"to"sea-dominated".Coordination of resource and environment carrying capacity and the development potential enhance the improvement of the development capacity of the complex land-sea system.At the same time,a System Dynamics(SD)simulation model of land-sea system was established to simulate the development trend of the variables under the background of land-sea coordination.The above study results provide a reference for the coastal zone to explore a new approach to achieve regional sustainable development under the background of land-sea coordination.