Inequality repercussions of roads on the coupling relationships between carbon supply and demand

IF 9.7 1区 环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL
Guanmin Liang, Miaomiao Liu, Minggao Liu, Min Wu, Xueman Zuo, Xisheng Hu, Sen Lin, Zhilong Wu
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Abstract

Roads have a close connection to the carbon cycle of the ecosystem. Nevertheless, it is still unclear how roads affect the balance between carbon supply and demand and where these influences take place. Taking the Min Delta region of China as a case, we analyzed the spatial coupling relationship between carbon supply and demand from 2000 to 2020, and explored the inequality of the impacts of roads on it by using buffer analysis and the geographically weighted regression model. The results showed that: (1) Carbon supply is higher in the western inland and lower on the eastern coast, while carbon demand expands from the east to the west. (2) From 2000 to 2020, a noticeable spatial mismatch between carbon supply and demand. Areas with a carbon surplus reduced from 99.4% to 96.0%, whereas carbon-deficient areas increased from 0.6% to 4.0%. (3) There is a clear spatial negative correlation between carbon supply and demand (P<0.01), with Moran's I of -0.272, -0.275, and -0.316 for 2000, 2010, and 2020, respectively. The spatial agglomeration patterns are characterized by high supply-low demand (H-L) in the west and low supply-high demand (L-H) in the east. (4) Carbon supply increases with the distance from roads, while carbon demand decreases with higher road grades. (5) The influence of road density on carbon dynamics differs significantly across space. There is a remarkable negative effect on carbon supply in the north and southwest of the study area. Meanwhile, the positive effects on carbon demand are more obvious in the north of the study area. The results offer scientific support and direction for creating energy-saving, emission-reducing, and green low-carbon transportation plans within the dual carbon goals context.

Abstract Image

道路对碳供需耦合关系的不平等影响
道路与生态系统的碳循环密切相关。然而,道路如何影响碳供需平衡,以及这些影响发生在何处,目前仍不清楚。我们以中国闽三角地区为例,分析了 2000 年至 2020 年碳供需的空间耦合关系,并利用缓冲区分析和地理加权回归模型探讨了道路对其影响的不平等性。结果表明(1)西部内陆地区碳供应量较高,东部沿海地区碳供应量较低,而碳需求量则从东部向西部扩展。(2)从 2000 年到 2020 年,碳供需出现明显的空间错配。碳过剩地区从 99.4%下降到 96.0%,而碳不足地区从 0.6%上升到 4.0%。(3)碳供需之间存在明显的空间负相关(P<0.01),2000 年、2010 年和 2020 年的 Moran's I 分别为-0.272、-0.275 和-0.316。空间集聚模式的特点是西部高供给-低需求(H-L),东部低供给-高需求(L-H)。(4) 碳供应量随道路距离的增加而增加,而碳需求量则随道路等级的增加而减少。(5)道路密度对碳动态的影响在不同空间有显著差异。在研究区域的北部和西南部,道路密度对碳供应量有明显的负面影响。同时,研究区北部对碳需求的正向影响更为明显。研究结果为在双碳目标背景下制定节能减排和绿色低碳交通规划提供了科学支持和方向。
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来源期刊
Journal of Cleaner Production
Journal of Cleaner Production 环境科学-工程:环境
CiteScore
20.40
自引率
9.00%
发文量
4720
审稿时长
111 days
期刊介绍: The Journal of Cleaner Production is an international, transdisciplinary journal that addresses and discusses theoretical and practical Cleaner Production, Environmental, and Sustainability issues. It aims to help societies become more sustainable by focusing on the concept of 'Cleaner Production', which aims at preventing waste production and increasing efficiencies in energy, water, resources, and human capital use. The journal serves as a platform for corporations, governments, education institutions, regions, and societies to engage in discussions and research related to Cleaner Production, environmental, and sustainability practices.
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