Article
SUN Wei, CHEN Cheng
Ocean is basic environment and important resource for human survival and development.Nowadays,on the background of resources exhausting,environment deteriorating and population increasing,development of marine resources and economy has become a worldwide trend and national strategy choice.As the special transitional geographical area from ocean to land,coastal zone plays an important carrier and springboard role in the marine economic development.What's more,the coordination with the hinterland space is not only the important content in the coordinated implementation of the development strategy of land and sea,but also major initiative in improving the utilization efficiency of marine resource and the development quality of marine economy.The reasonable development and utilization of spatial resources in coastal zone is playing a more and more important role in the sustainable development of coastal cities.According to the natural, economic,and social characteristics of the area,the coastline and coastal zones can be divided into different spaces for proper coastal development and protection.Nowadays,using related division methods to get higher distribution efficiency of spatial resources has become a hot topic of geographical research.Most of the scholars construct the evaluation index system from the aspects of economic and ecological factors,and make some useful exploration and attempt on the division methods.However,there are some differences in the selection of indicators because of the natural specificity of the coastal zone and the need to attach emphasis on the overall strategy of land and ocean about the utilization of spatial resources.Taking the coastal zone in Ningbo as an example,this paper discusses the evaluation index system and division methods of spatial function regionalization about coastline and coastal zone.Based on the existing division methods,this paper focuses on technical methods of the division of evaluation unit,the selection and treatment of indicators, and so on.Specially,from the perspective of overall strategy of land and ocean,we evaluate the suitability of the coastline development including ecological suitability,production suitability and living suitability,and propose the spatial function regionalization of coastal zone.Then,we divide the coastal zone in Ningbo into ecological space,production space and living space,and propose adjustment directions and control requirements for the spatial layouts of different types of regions on the basis of the current situation of space exploitation in Ningbo.From the point of division methods,we find that the selection of indicators and data reliability has great influence on the scientific results.However,some incoming data, hydrological data and underwater terrain data are collected from data interpretation and related research reports,not the first-hand measured data.And this needs to be further supplemented in the following studies.Through this paper,we hope to provide a scientific basis for the spatial development and control of coastal zone.