Spatiotemporal variations and structural characteristics of carbon emissions at the county scale: a case study of Wu’an City

温室气体 碳纤维 冶炼 环境科学 中国 比例(比率) 环境工程 环境保护 自然资源经济学 地理 工程类 废物管理 冶金 经济 复合数 复合材料 考古 生物 材料科学 地图学 生态学
作者
Zhi Long,Jiaxing Pang,Shuaike Li,Jianmin Zhao,Ting Yang,Xingpeng Chen,Zilong Zhang,Yingqi Sun,Lixia Lang,Ningfei Wang,Huiying Shi,Bo Wang
出处
期刊:Environmental Science and Pollution Research [Springer Nature]
卷期号:29 (43): 65466-65488 被引量:7
标识
DOI:10.1007/s11356-022-20433-5
摘要

In China, the county is not only an important component of industrial areas and a large contributor of carbon emissions, but also a key administrative unit for the implementation of carbon peak and carbon neutrality goals and policies. The spatiotemporal variations and structural characteristics of carbon emissions at the county scale are of great significance to China's dual goals of regional carbon policy implementation and low carbon spatial planning. Thus, it is important and insightful to conduct an in-depth and detailed examination of these characteristics while focusing on a typical iron and steel industry county-level city in North China. This study systematically calculated the carbon emissions of the county-level city of Wu'an from 2008 to 2017, and explored their structural characteristics and spatiotemporal variations. The results showed that (1) under the influence of macroeconomic and national policies, the carbon emissions of county-level cities dominated by the iron and steel industry show obvious phased characteristics; (2) there is a significant negative correlation between industry carbon emission concentrations and industrial carbon emissions; (3) within the steel industry system, sintering, iron smelting, steelmaking, and metal product processing are the main sources of carbon emissions, and the coal-based production process of the iron and steel industry needs a fundamental reformation; and (4) the carbon emission of Wu'an City shows obvious spatial differentiation characteristics. The geographic distribution of carbon emissions in Wu'an City is very unbalanced and tended to cluster together in urban areas, industrial and mining areas, and major towns. Taking 2014 as the turning point, the spatial pattern of carbon emissions in Wu'an City presents different variation characteristics.
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