基于尺度效应的城市化水平指标修正  

Reexamination of Indicators of Urbanization

作　　者：王丰龙[1] 刘云刚[1] 

机构地区：[1]中山大学地理科学与规划学院,广东省城市化与地理环境空间模拟重点实验室,广州510275

出　　处：《热带地理》2011年第4期403-408,共6页Tropical Geography

基　　金：国家自然科学基金项目(40701041);留学回国人员科研启动基金项目;广东省哲学社会科学十一五规划项目(09Q-01)

摘　　要：城市化率在表征城市化水平时受到历时性因素和空间性差异的局限和扭曲;前者表现在城市化率难以衡量城市化发展后期阶段的差异和国内不同时期的城市化政策对城市化率的系统性冲击,后者主要表现在地域分异下的个体效应和规模影响下的尺度效应。针对尺度效应,本文运用反演方法和地图方法,论证了城市化率在表征城市化水平时所受到尺度的两种影响;进而从规模修正和首位度修正的角度出发,构建了一个新的城市化指数PNUP。实证结果表明,该指数对于表达实际城市化水平及其空间差异的效果较好,能够解释和部分解决目前存在的一些理论争论,具有很好的应用和发展前景。As an indicator, urbanization rate causes a lot of paradoxes between current researches and the reality. It is limited and distorted by some chronological dynamics and spatial differences： the former problems are profoundly manifested in the neglect of variance between cities at late period and the great changes caused by historical policies on urbanization; the latter are mainly reflected as individual effects stemming from regional differences of different cities and scale effects rooted in the differenciated size of city regions, which can be evaluated and revised from theoretical level. To overcome the scale impacts from different sizes and urban systems, the authors propose a new urbanization index using the methods of retrieval and map, which contains the information of urbanization rate, population size and primacy ratio of the city in its region. The index has been empirically proved to perform better in representation of actual urbanization level and explanation of contradictions when depicting spatial patterns in China. The authors also make a brief analysis on relevant researches and give an outlook of the application of the index.

关 键 词：城市化率 个体效应 尺度效应 修正 城市化指数 

分 类 号：K902[历史地理—人文地理学]