生态文明先行示范区建设对生态环境质量的影响效应及作用机制研究

Impact and Mechanisms of the Construction of Ecological Civilization Pilot Demonstration Zone on the Ecological Environment Quality

如何在保持经济持续增长的同时提高生态环境质量是当下我国迫切需要解决的现实问题。本文基于我国2009-2021年284个地级市的面板数据,将生态文明先行示范区建设视为一项准自然实验,运用DID(Differences-in-Differences)方法探究了生态文明示范区建设对生态环境质量的影响效应及作用机制。研究发现,生态文明先行示范区建设对生态环境质量的提升具有显著的正向效应,其影响效应随着时间的推移呈现出先上升后小幅下降的特征,且在西部地区、资源型城市以及工业发展水平高的城市影响更为显著。进一步分析发现,生态文明先行示范区建设可以通过提升政府环境治理水平、促进工业企业绿色转型、提高公众环境关注度三个渠道提升生态环境质量。因此,应加快推广生态文明先行示范区建设经验,因地制宜实施差异化的生态文明建设,积极探索生态文明建设的多维路径,进一步提升全社会生态环境质量。

How to improve the quality of the ecological environment while maintaining sustained economic growth remains an urgent and practical issue in China today.Based on the panel data of 284 prefecture-level cities in China from 2009 to 2021 and treating the construction of ecological civilization pilot demonstration zones as a quasi-natural experiment,this paper uses the Difference-in-Differences(DID)method to explore the impact and mechanisms of ecological civilization pilot demonstration zone construction on the quality of the ecological environment.The study found that the construction of ecological civilization pilot demonstration zones has a significant positive effect on the improvement of the ecological environment quality.The impact shows an initial increase followed by a slight decline over time,and it is more pronounced in the western region,resource-based cities,and cities with a high level industrial development.Further analysis revealed that the construction of ecological civilization pilot demonstration zones can improve the quality of the ecological environment through three channels:enhancing government environmental governance,promoting the green transformation of industrial enterprises,and increasing public environmental awareness.Therefore,it is necessary to accelerate the promotion of ecological civilization pilot demonstration zones construction,select differentiated paths for ecological civilization construction according to local conditions,actively explore multidimensional approaches to ecological civilization construction,and further enhance the overall ecological environment quality of the whole society.