中国数字基础设施发展对环境污染的影响研究

我国正在大力推进数字经济建设和绿色发展转型。因此，本文利用2006—2019年中国省级面板数据，使用固定效应模型、空间杜宾模型、中介效应模型等方法从多维度检验数字基础设施发展对环境污染的影响及其机制。研究发现：数字基础设施发展减少了工业二氧化硫、工业烟尘、PM2.5、工业废水等污染物的排放。作用机制分析显示，数字基础设施发展能够通过促进绿色创新和优化产业结构两个渠道来减少污染排放。本文还发现数字基础设施发展对环境污染的影响存在空间异质性和空间溢出效应。本文的研究有助于更好地理解我国数字经济发展对污染减排的影响、作用机制和地区空间差异，也佐证了数字经济和绿色发展之间的协同关系。

An analysis on the impact of digital infrastructure development on environmental pollution in china

The Chinese government has endeavored to promote the development of digital economy and green transition. Based on Chinese provincial panel data from 2006-2019, this paper examined the impact of digital infrastructure development on environmental pollution and its mechanisms using fixed-effect and mediation models. The results showed that digital infrastructure development significantly reduced emissions of industrial sulfur dioxide, industrial soot, PM2.5, and industrial wastewater through promoting green innovation and optimizing industrial structure. In addition, this paper further discussed the spatial heterogeneity and spatial spillover effects of digital infrastructure on environmental pollution. The results of this paper are helpful to understand the effect of digital economy development on environment and provide evidence on the coordination between development of digital economy and green transition in China.