关于技术创新对中国278个县级城市碳排放强度的影响的研究
Xuelian Zhu1, Jianan Che1, Xiaogeng Niu2,3,4
1School of Economics, Hebei GEO University, Shijiazhuang, 050031, China.
Scientific reports
|April 28, 2025
概括
技术创新减少了中国城市和周边地区的碳强度. 这种效应在非资源型城市更为明显,在中国西部则不那么明显,这凸显了战略投资的必要性.
科学领域:
- 环境经济学环境经济学
- 城市研究 城市研究
- 气候变化缓解缓解 气候变化缓解
背景情况:
- 技术创新对于绿色经济转型和可持续发展至关重要.
- 了解其对碳强度的影响对于减缓气候变化战略至关重要.
- 在创新和排放方面的空间关系往往超过线性模型.
研究的目的:
- 研究技术创新对中国城市碳密度的影响.
- 分析技术创新对城市碳排放的空间溢出效应.
- 确定这些影响的区域和行业差异.
主要方法:
- 利用了中国城市的县级数据.
- 用一个空间的德尔宾模型进行经济学分析.
- 研究了创新与碳排放强度之间的空间关系.
主要成果:
- 技术创新对碳排放强度产生了显著的负面空间溢出效应,减少了城市及其邻近地区的碳排放强度.
- 与其他地区相比,中国西部的空间溢出效应较少明显.
- 非以资源为基础的城市比以资源为基础的城市表现出更显著的溢出效应.
结论:
- 建议增加对技术创新和产业结构优化的投资.
- 利用空间溢出效应可以促进跨城市的协同碳减排.
- 政策干预应考虑区域和行业的特点,以有效减排碳.
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