[数字经济发展对城市碳排放的驱动作用:从空间溢出到空间网络]
1Jiangsu Industry Development Research Institute, Nanjing University of Finance & Economics, Nanjing 210023, China.
Huan jing ke xue= Huanjing kexue
|September 17, 2025
概括
中国数字经济的发展通过加强网络连接和绿色创新来减少城市的碳排放. 这种数字化转型为各地区的绿色,低碳发展提供了重大机会.
科学领域:
- 环境科学 环境科学
- 经济学 经济学 经济学
- 城市研究 城市研究
背景情况:
- 数字经济是技术革命的关键驱动力,整合了信息化和绿化.
- 它通过加强区域网络连接,为中国的绿色和低碳发展提供了机会.
- 数字经济的空间效应可以有效地减少城市碳排放.
研究的目的:
- 实证地评估数字经济发展对中国城市碳排放的影响.
- 研究数字经济影响碳排放的空间机制.
- 确定增强数字经济驱动的碳减排有效性的因素.
主要方法:
- 2011年至2019年,中国278个县级城市的面板数据分析.
- 经验评估数字经济发展与城市碳排放之间的关系.
- 空间网络分析以检查溢出效应和网络中心性.
主要成果:
- 数字经济的发展显著推动了城市的碳减排.
- 观察到数字经济对城市碳排放产生显著的空间溢出效应.
- 更高的网络中心性 (中心性和接近性) 与数字经济驱动的低碳发展正相关.
结论:
- 数字经济是实现中国城市碳减排的强大工具.
- 加强城市网络密度可以提高绿色创新和碳减排能力.
- 中国东部,城市聚集区中的城市和非资源城市最有可能从数字经济驱动的低碳发展中受益.
相关概念视频
Social Traps
26.3K
Social traps are negative situations where people get caught in a direction or relationship that later proves to be unpleasant, with no easy way to back out of or avoid. The concept was orignally introduced by John Platt who applied psychology to Garrett Hardin's "Tragedy of the Commons", where in New England herd owners could let their cattle graze in the common ground. This situation seems like a good idea, but an individual could have an advantage. If they owned...
26.3K
The Carbon Cycle
43.2K
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
43.2K
Short-distance Transport of Resources
17.5K
Short-distance transport refers to transport that occurs over a distance of just 2-3 cells, crossing the plasma membrane in the process. Small uncharged molecules, such as oxygen, carbon dioxide, and water, can diffuse across the plasma membrane on their own. In contrast, ions and larger molecules require the assistance of transport proteins due to their charge or size. Transport across membranes also occurs within individual cells, playing a variety of essential roles for the plant as a whole.
17.5K
Levels of Use of a GIS
366
Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...
366
Applications of GIS: Disaster Management and Emergency Response
475
Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...
475
Introduction to Limits
192
A limit describes the value a function approaches as its input moves closer to a particular point. Even when a function is undefined at a specific value, limits allow us to analyze its behavior near that point. This concept is fundamental in calculus and essential for understanding continuity, derivatives, and integrals.Mathematically, a function f(x) has a limit L at x = a if its values L approach x as x gets arbitrarily close to a. This is written as:This notation expresses that the function...
192


