地理科学进展 ›› 2011, Vol. 30 ›› Issue (4): 485-490.doi: 10.11820/dlkxjz.2011.04.012

• 城市与旅游地理 • 上一篇    下一篇

基于逆向重力模型的城市质量测算及其影响因子分析

金凤君1, 刘鹤1,2, 许旭1,2   

  1. 1. 中国科学院区域可持续发展分析与模拟重点实验室中国科学院地理科学与资源研究所,北京100101;
    2. 中国科学院研究生院,北京100049
  • 收稿日期:2010-10-01 修回日期:2011-01-01 出版日期:2011-04-25 发布日期:2011-04-25
  • 通讯作者: 刘鹤, E-mail: liuh.08b@igsnrr.ac.cn E-mail:liuh.08b@igsnrr.ac.cn
  • 作者简介:金凤君(1961-),男,内蒙古宁城县人,研究员,博士生导师。主要研究方向为交通运输地理与区域经济学。E-mail: jinfj@igsnrr.ac.cn
  • 基金资助:

    国家自然科学基金重点项目(40635026)。

Nodal Attractions Estimation and Their Influencing Factors Based on Reverse Gravity Mode

JIN Fengjun1, LIU He1,2, XU Xu1,2   

  1. 1. Key Laboratory of Regional Sustainable Development Modeling, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2010-10-01 Revised:2011-01-01 Online:2011-04-25 Published:2011-04-25

摘要: 基于逆向重力模型及标准代数算法,利用城际O-D客流矩阵和铁路最短距离矩阵,测算了28 个省会城市和 直辖市的城市质量。在此基础上,采用相关系数及线性回归等统计方法,研究了人口、GDP等因素对城市质量的 影响。研究发现,城市质量总体上呈现由东向西递减的趋势,其等级结构呈现“纺锤体”特征。诸多影响因素中, 从业人员是刻度城市质量的最佳指标,交通枢纽的城市地位对“轴—辐”网络城市质量具有重要影响。城市质量 的线性拟合方面,复合指标比单一指标具有更好的解释力。

关键词: 标准代数算法, 城市质量, 逆向重力模型, 铁路O-D客流

Abstract: Based on a reverse gravity model, endogenous nodal attractions of 28 cities are estimated using the algebraic method with a Chinese railway passenger database with known exogenous spatial interaction and impedance. Then nodal attributes that contribute to the nodal attractions are examined using correlation index and linear regression function. We find that the 28 cities'nodal attractions show a decreasing trend from east to west and the hierarchical structure presents a "spindle" feature. Among many factors, the employees is the best indicator of nodal attractions and whether the city is a transport hub or not has an important influence on its nodal attraction in the "axis - spoke" network. The linear fitting results of nodal attractions indicate that the composite index can achieve better fitting effect than a single indicator.

Key words: nodal attraction, railway passenger flow O-D matrix, reverse gravity mode, the algebraic method