| 数字经济对建筑业碳排放的影响机制:以长三角城市群为例 |
| 摘要点击 1699 全文点击 34 投稿时间：2025-02-20 修订日期：2025-05-06 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 长三角城市群 数字经济 建筑业 碳排放 绿色技术创新 |
| 英文关键词 Yangtze River Delta digital economy construction industry carbon emissions green technology innovation |
| DOI 10.13227/j.hjkx.202502152 |
|
| 中文摘要 |
| 在数字长三角建设与“双碳”目标持续推进的背景下，数字经济作为集数字化与低碳化于一体的新型驱动力，通过直接降碳和间接推动绿色技术创新，助力建筑业实现绿色低碳转型和高质量发展. 基于2011~2022年长三角地区41个城市相关数据，分析建筑业碳排放的现状与时空特征，并采用面板数据回归模型与中介效应检验相结合的方法进一步探讨数字经济和绿色技术创新对建筑业碳减排的影响及作用机制. 结果表明: ①2011~2022年，长三角城市建筑业碳排放虽低幅波浪式增加但空间集聚减弱，各省市的数字经济发展水平显著提升，12 a整体累计增长近1.3倍，其中安徽增速最快，多数城市实现了正向增长. ②数字经济与碳排放强度之间存在显著的正相关关系，这种影响在经过了稳健性和内生性检验后依然成立，且影响因城市资源禀赋而异，资源型城市效果显著. ③在推动建筑业低碳发展中，数字经济依托绿色技术创新中介机制，显著提升了降碳效果. 研究结果对制定数字经济在建筑减排领域的相关政策具有重要意义，并为实现绿色低碳目标提供了理论支撑. |
| 英文摘要 |
| Under the background of the continuous advancement of the digital Yangtze River Delta construction and the "dual carbon" goals, the digital economy, as a new driving force integrating digitalization and low-carbon development, helps the construction industry achieve green and low-carbon transformation and high-quality development by directly reducing carbon emissions and indirectly promoting green technological innovation. Based on the data of 41 cities in the Yangtze River Delta region from 2011 to 2022, this study analyzes the current situation and spatial-temporal characteristics of carbon emissions in the construction industry and further explores the impact and mechanism of digital economy and green technological innovation on carbon emission reduction in the construction industry by combining panel data regression models and mediation effect tests. The results showed that: ① From 2011 to 2022, although the carbon emissions from the construction industry in Yangtze River Delta cities increased in a low-amplitude wave pattern and spatial agglomeration weakened, the level of digital economy development in various provinces and cities has significantly improved, with an overall cumulative increase of nearly 1.3 times, among which Anhui had the fastest growth, and most cities had achieved positive growth. ② There was a significant positive correlation between the digital economy and carbon emission intensity, and this influence remained after robustness and endogeneity tests. The impact varied with urban resource endowments, with resource-based cities showing significant effects. ③ In the context of digital economy promoting the low-carbon development of the construction industry, green technological innovation played a positive mediating role. The research results are of great significance for formulating relevant policies of digital economy in the field of construction emission reduction and provide theoretical support for achieving the goal of green and low-carbon development. |
