基于主成分的省域3E系统耦合协调度研究

An Empirical Study on Coupling Coordination Degree of Provincial 3E System Based on Principal Component Analysis

在信息时代大数据发展迅猛,海量的数据使得统计工作面临前所未有的挑战。从经济、能源、环境三个宏观层面出发,选取2003-2019年我国30个省市的各项指标,在主成分分析的基础上构建“经济-能源-环境”耦合系统(3E系统),探讨各个系统得分的时空差异,并分析系统的耦合协调度,旨在简化宏观高维数据,为宏观研究提供便利。研究结果发现:我国经济子系统在2003-2019年内逐年提升,而环境子系统得分与经济子系统相反,经济发达地区环境得分停滞不前,甚至有逐年下降的趋势,能源子系统各区域发展稳定;同时我国3E系统的耦合协调性处于高协调水平,经济子系统与环境子系统的耦合协调性是影响3E系统协调性的最主要原因,经济子系统在环境子系统与能源子系统间充当媒介作用。

With the rapid development of big data in the information age,the massive data make statistical work face unprecedented challenges.Starting from the three macro levels of economy,energy and environment,this paper selects various indicators of 30 provinces and cities in my country from 2003 to 2019,and builds an"economy energy environment"coupling system(3E system)on the basis of principal component analysis.The spatial and temporal differences in the scores of each system are discussed,and the coupling coordination degree of the system is analyzed,aiming to simplify macroscopic high dimensional data and facilitate macroscopic research.The research results show that:our country's economic subsystem has improved year by year from 2003 to 2019,while the score of environmental subsystem is opposite to that of economic subsystem.The environmental score of economically developed areas is stagnant,or even has a downward trend year by year,and the development of energy subsystem in each region is stable.At the same time,the coupling coordination of the country's 3E system is at a high level of coordination.The coupling coordination between the economic subsystem and the environmental subsystem is the most important factor affecting the coordination of the 3E system.The economic subsystem acts as a medium between the environmental subsystem and the energy subsystem effect.