利用限制性综合指数法分析宁波市大陆海岸线综合利用格局

Analysis on Comprehensive Utilization Pattern of Coastlines in Ningbo by Restrictive Comprehensive Index Method

海岸线在陆海交界中扮演着重要角色,蕴含了丰富的旅游资源、近海资源、生产资源,是一种生态保护性的稀缺资源。从海岸带区域的自然、环境、社会经济等方面,综合选取13个评价因子,采用改进后的限制性综合指数法,从海岸线综合利用类型和空间集聚特征两个维度,分析宁波市大陆海岸线综合利用格局。结果表明:①生态、生活和生产3种海岸线综合利用类型长度的占比分别为14.10%、47.44%和38.46%;②象山县范围内的生态岸线和生产岸线所占比例分别为65.37%和39.40%;宁海县范围内的生活岸线所占比例最大,为34.90%;③宁波市海岸线综合利用空间集聚特征呈现为“中部生态与生活,外部生产,内蓝外红”,生态与生活岸线主要集中分布于杭州湾、象山港和三门湾3大湾区域,生产岸线主要集聚于东部海岸带。

Coastlines play a vital role in the land-sea junction,which contain rich tourism resources,offshore resources and production resources. They are scarce resources for ecological protection. 13 evaluation factors are selected from the natural,environmental and socio-economic aspects of the coastal zone,and the improved restricted comprehensive index method is used to analyze the comprehensive utilization of the mainland coastlines in Ningbo in terms of comprehensive utilization type and spatial agglomeration characteristics. The research results show that:Firstly,the proportions of the length of ecological,living and productive coastlines are 14. 10%,47. 44%and 38. 46%,respectively. Secondly,the proportion of ecological shorelines and productive shorelines in Xiangshan County is 65. 37% and 39. 40%,respectively. The proportion of living coastlines in Ninghai County is the largest,which is 34. 90%. Thirdly,the spatial agglomeration characteristics of comprehensive utilization suitability of coastlines in Ningbo are“ecology and life in the middle,productive outside,blue lines inside and red lines outside”. The ecological and living coastlines are mainly distributed in Hangzhou Bay,Xiangshan Port and Sanmen Bay,and the productive shorelines are mainly concentrated in the eastern coast.