干旱区地理2011，Vol.34Issue(5)：809-819,11.
基于ESDA的兰州-西宁城镇密集区经济空间差异分析
Economic spatial disparities in Lanzhou- Xining CCA based on ESDA
摘要
Abstract
Lanzhou - Xining City-and-Town Concentrated Areas (CCA) is the most densely populated areas in Gansu and Qinghai provinces, and it plays an important role in promoting and driving economic and social development of Gansu and Qinghai provinces. Based on the systemic data, it is the first time that this paper made comprehensive analysis on economic spatial disparity in Lanzhou - Xining CCA by using methods of principal component a-nalysis and spatial autocorrelation analysis. It provides reliable basis of practice and theory for researching planning of Lanzhou - Xining CCA and promoting sustainable development of Lanzhou - Xining CCA. First of all: The 35 cities and towns in Lanzhou - Xining (CCA) are taken for research objects in this paper. We choose 12 indices (included per capita GDP, per capita fixed asset investment, average financial income, per capita social retail commodity total, per capita savings deposit balance, per capital annual net income of rural households, average salary of the workers at their posts,urbanization level,tertiary industry proportion,average industrial output value per person, speed of economic growth, GDP proportion of revenue) , which are characterized by economic development level of cities and towns and 4 time sections (1995,2000,2005,2008). By principal component analysis,we obtain each county economic development level index value across the four studied years, which is served as basis for analyzing economic spatial disparity in Lanzhou - Xining CCA. Afterwards, we have done research on economic spatial disparity in Lanzhou - Xining CCA based on the overall and local spatial autocorrelation analyses of exploratory spatial data analysis (ESDA). It can be concluded as follows:(1)During the 14 years from 1995 to 2008,there has been positive spatial autocorrelation about economic spatial disparity in Lanzhou - Xining CCA but no significantly, spa-tial agglomeration has been enhanced and spatial disparities of overall economy would have a tendency of shrinking with the development of economy;(2) Recent years, contrary to spatial disparities of overall economy, spatial disparities of local economy in Lanzhou - Xining CCA have a tendency of extending,and Lanzhou - Xining CCA is still in the transitional stage from polarization to proliferation; (3) Moran scatter plot shows that there are faster speed and better tendency of economic development in Qinghai CCA than Cansu recent years. The result of this research provides certain theoretical and realistic reference for optimizing the spatial layout of industry, setting up a reasonable urban system and promoting Lanzhou - Xining CCA sustainable social and economic developments. Analyzing economic spatial disparities in Lanzhou - Xining CCA based on ESDA are preliminary, there are several aspects for further research, such as making inspections for robustness of analysis results of existing by means of distance or other space weight defining standard; there may be different conclusions by analyzing the data of different spatial scale; ESDA statistical data that are mainly described in statistical data is in nature data-driven, so lacking of explanatory power of theoretical model.关键词
经济空间差异/ESDA/兰州-西宁城镇密集区Key words
economic spatial disparity/ESDA/Lanzhou-Xining CCA分类
管理科学引用本文复制引用
张志斌,李书娟,何伟,李小虎..基于ESDA的兰州-西宁城镇密集区经济空间差异分析[J].干旱区地理,2011,34(5):809-819,11.基金项目
国家自然科学基金项目(41161028) （41161028）
国家自然科学基金面上项目(40771054) （40771054）
甘肃省属高校基本科研业务费专项资金和西北师范大学青年骨干项目资助 （）
