关于数字经济的空间特征的城市碳排放研究
Linzhu Wang1, Yixin Sun2, Deyi Xv1
1School of Economics and Management, China University of Geosciences, Wuhan, 430074, China.
概括
数字经济有助于减少中国的碳排放,但其影响因地区和时间而异. 制定本地化的数字经济战略是实现碳中和目标的关键.
科学领域:
- 环境科学 环境科学
- 城市研究 城市研究
- 经济学 经济学 经济学
背景情况:
- 城市碳排放 (CO2) 是一个重大的环境挑战.
- 数字经济的快速增长为环境可持续性带来了新的机遇和挑战.
- 了解数字经济对二氧化碳影响的空间和时间动态对于有效的政策制定至关重要.
研究的目的:
- 调查数字经济对中国城市碳排放的空间影响效应和空间时间异质性.
- 分析数字经济影响二氧化碳排放的机制.
- 为实现中国的碳峰值和碳中和目标提供见解.
主要方法:
- 为285个中国城市构建数字经济指数 (DEI).
- 应用全球主要组件分析 (GPCA) 来评估数字经济水平.
- 利用空间德宾模型 (SDM) 和地理时间加权回归 (GTWR) 来分析空间和时空影响.
- 包括机制变量来探索潜在的影响和非线性特征.
主要成果:
- 数字经济的进步为碳减排目标做出了积极贡献,在稳定性测试中具有稳定的缓解效应.
- 数字经济对减少碳排放的空间溢出效应并不显著.
- 数字经济对碳排放的影响存在显著的时间和空间异质性.
- 数字经济通过促进绿色技术和现代化工业结构来减少二氧化碳,表现出非线性特征.
结论:
- 数字经济是支持中国"碳峰值和碳中和"目标的可行工具.
- 政策干预必须考虑到跨越时间和空间的不同城市发展轨迹.
- 量身定制的数字经济发展战略,利用独特的城市优势,对于有效的碳减排至关重要.
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