数字经济与清洁能源发展时空耦合及其驱动因素

Spatial-Temporal Coupling of Digital Economy and Clean Energy Development and Its Driving Factors

我国经济正处于新旧动能转换的关键时期,推动数字经济与清洁能源产业的深度融合,对于保障国家能源安全至关重要,同时也是构建人与自然和谐共生的现代化经济体系的重要途径。该文运用投影寻踪模型测算2010—2021年中国30个省域的数字经济与清洁能源发展指数,利用耦合协调度模型、核密度估计和地理探测器分析二者的时空耦合协调发展特征和驱动因素。结果表明:①研究期内我国省域数字经济与清洁能源整体处于快速发展阶段,但存在区域发展不平衡现象,数字经济发展水平呈现东强西弱分布格局,清洁能源与此相反;②分维度看,数字经济各子系统与清洁能源耦合协调水平逐年提高,其中产业数字化的耦合协调进程最快,分区域看,各区域数字经济和清洁能源的耦合协调水平均呈上升趋势;③从单因子探测看,信息化程度是影响二者耦合协调关系的核心驱动因素,从交互探测看,科技创新和资源禀赋的交互驱动力对两者耦合协调发展的影响最大。

At the current critical moment when China′s economy is in the transformation of old and new kinetic energy,promoting the deep integration of digital economy and clean energy industry is not only crucial to ensuring national energy security,but also an important way to build a modernized economic system in which human beings and nature coexist harmoniously.This paper applies the projection tracing model to measure the development index of digital economy and clean energy in 30 provinces(municipalities and autonomous regions)in China from 2010 to 2021,and analyzes the spatio-temporal coupling and coordinated development characteristics and driving factors of the two by using the coupling coordination degree model,kernel density estimation and geographical detector.The results are shown as follows.①During the study period,China′s provincial digital economy and clean energy as a whole are in a rapid development stage,but there is a regional development imbalance,the development level of digital economy shows a distribution pattern of strong in the east and weak in the west,but the clean energy is the opposite.②From the perspective of dimensions,the coupling and coordination level of each subsystem of digital economy and clean energy has increased year by year,in which the coupling and coordination process of industrial digitization is the fastest.From the perspective of regions,the coupling and coordination level of digital economy and clean energy in each region is on the rise.③The analysis of geographical detector shows that informatization is the core driver affecting the coupling and coordination relationship between the two,and the interactive driving force of scientific and technological innovation and resource endowment has the greatest impact on the coupling and coordination development of the two.