嘉陵江流域经济空间分异研究

认识流域经济空间分异特征是科学决策、促进流域经济可持续发展的关键。以嘉陵江流经的主要县市为研究单元，选取度量嘉陵江流域经济发展的10个指标，运用主成分分析揭示流域经济差异，并用Geoda软件提供的空间分析方法揭示流域经济差异的空间分异特征。分析结果表明：流域内经济发展水平差异显著，并在地理空间上存在集聚性；流域内基本形成了“点 轴”式空间结构，且存在两个明显的经济热点区--绵 渝“双核区”，以及一个较大的经济盲区，即陕西、甘肃、四川三省交界处的边缘区域。在此基础上分析了影响流域空间经济分异的主要原因，提出盲点区与热点区的发展策略，防止流域内“极化”效应加剧，为缩小流域经济差距，促进流域经济协调发展提供基础依据.

STUDY ON THE ECONOMIC SPATIAL DIFFERENCES IN JIALING RIVER BASIN

Understanding the characteristics of spatial 〖JP2〗differentiation in the basin is a key to make a scientific〖JP〗 decision and promote sustainable basin economic development.Based on 10 economic indices in the main countries and cities which Jialing River flows through，this paper calculates the general score of basin economic level by using SPSS，and analyzes the spatial differences of basin economic level by means of  spatial analysis provided by Geoda.The analysis shows that there are great  differences in the economic level，and the geographical concentration exists in the basin economic.A “point axis” spatial structure has been basically formed，and there are two economic hot spot，that is “Mianyang Chongqing” dual nuclei zone，as well as a economic blind zone which is a border district at the junction of Shanxi，Gansu and Sichuan province.Based on the status of the spatial differentiation of Jialing River basin,this article gives the main reasons for the  differentiation and puts forward several proposals on hot spot and blind zone,in order to prevent the acceleration of the “polarization” effect,and to provide evidence for the harmonious development of basin economic