中小城市环城游憩地圈层分析方法研究——以延吉市为例

STUDY ON THE ANANLYSIS METHODS OF RECREATIONAL RING STRUCTURE AROUND THE MEDIUM AND SMALL CITIES——A Case Study of Yanji City

随着城市化进程的加快和居民游憩需求的增大,中小城市环城游憩地也迅速发展起来并呈现一定的分布形态,本文通过环城游憩地圈层分析方法的探讨,深化对延吉市城市游憩空间结构系统和城市空间结构的理解,强化对中小城市环城游憩带研究方法的探索。通过回转半径、缓冲分析、成本路径、网络分析、圈层插值五种方法,对比分析延吉市环城游憩地的分布情况及最佳游憩半径等,以上几种分析方法各有利弊和长短,随着计算机技术水平的提高和人们对环城游憩圈层结构研究的深入,环城游憩地圈层分析方法也会有进一步的创新和突破。

With the acceleration of urbanization and the increasing recreational demand of residents,the recreational spots around medium and small cities also developed rapidly and showed particular distribution patterns.By the exploration of analysis method about recreational ring around Yanji City,we could get better understanding about the systems of urban spatial structure and recreation spatial structure of the medium and small city which is similar as Yanji City.By using the analysis methods of turning radius,buffer analysis,cost path,network analysis,point interpolation in ring structure,we compared the spatial structure of recreational areas and the best distance of recreation behavior around Yanji City,The results showed that the analysis method of the point interpolation in ring structure could be fit for the analysis of the recreational needs of residents,and could reflect the characteristics of the recreational spots distribution objectively.In spite of its normativeness and popularity,the best distance of recreation behavior which based on the turning radius analysis methods just considered the Euclidean distance between the recreation center and the recreational spots unilaterally.The cost path analysis method which based on Digital elevation model Considered the terrain elements fully,and the network analysis method which based on the transport topology network of urban and rural took into account of the feasibility of recreation behavior well.but the quantitative recreational radius and the minimum cost routing couldn＇t explained the geographical distribution characteristics caused by the recreational spots around the medium and small cities.With the development of computer technology,and the study of recreational ring structure in depth,there would be further innovation and breakthrough in the methodology of recreational ring structure analysis.