城市群碳平衡的空间网络特征--京津冀城市群案例研究

IF 4 2区 地球科学 Q1 GEOGRAPHY
Xuezhen Ren , Rui Xiong , Tianhua Ni
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引用次数: 0

摘要

城市群内的城市之间有着紧密的贸易联系,从而导致碳平衡的空间异质性和相关性。以往的研究没有深入探讨城市群碳平衡的空间关联网络(SAN)特征,尤其是网络结构、节点效应和时空非均质性等方面。本研究采用修正的引力模型和社会网络分析(SNA)方法,研究了2000-2019年京津冀地区碳平衡的空间网络特征。研究结果表明1)碳排放量增加了 106.42%,碳汇增加了 31.06%,呈现出时空异质性,形成了以北京为中心的多层次、多节点的碳平衡 SAN。2)碳平衡主要受不同节点的空间溢出效应影响,通常是从低级节点向高级节点移动。3) 城市承担了四种角色:双向溢出、净溢出、主要受益者和代理人,这些角色是动态的。4) 碳平衡的空间相关性主要受经济发展(最大值 0.602)、空间距离(最大值 0.331)和人均生态用地(最大值 0.445)的影响。这种方法将完善碳管理政策,加深对 SAN 及其影响因素的理解,为优化碳减排管理提供启示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Spatial network characteristics of carbon balance in urban agglomerations– a case study in Beijing-Tianjin-Hebei city agglomeration

Spatial network characteristics of carbon balance in urban agglomerations– a case study in Beijing-Tianjin-Hebei city agglomeration

The cities within city clusters have strong trade connections, resulting in spatial heterogeneity and correlation of carbon balances. Previous studies have not deeply explored the characteristics of the spatial association network (SAN) of carbon balance in urban agglomerations, particularly regarding network structure, node effects, and spatial-temporal inhomogeneities. This study investigated the spatial network characteristics of carbon balance in the Beijing-Tianjin-Hebei (BTH) region from 2000 to 2019, employing a modified gravity model and social network analysis (SNA). The findings revealed the following: 1) Carbon emissions increased by 106.42%, and carbon sinks increased by 31.06%, displaying spatial-temporal heterogeneity and forming a multi-level, multi-nodal SAN of carbon balance centered around Beijing. 2) The carbon balance was mainly influenced by spatial spillovers occurring at different nodes, typically moving from lower-tier to higher-tier nodes. 3) Cities assumed four roles: bidirectional spillover, net spillover, primary beneficiary, and agent, with these roles being dynamic. 4) The spatial correlation of carbon balance was primarily influenced by economic development (max 0.602), spatial distance (max 0.331), and per capita ecological land (max 0.445). This approach would refine carbon management policies and deepen the understanding of the SAN and its influencing factors, providing insights for optimizing carbon emission reduction management.

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来源期刊
Applied Geography
Applied Geography GEOGRAPHY-
CiteScore
8.00
自引率
2.00%
发文量
134
期刊介绍: Applied Geography is a journal devoted to the publication of research which utilizes geographic approaches (human, physical, nature-society and GIScience) to resolve human problems that have a spatial dimension. These problems may be related to the assessment, management and allocation of the world physical and/or human resources. The underlying rationale of the journal is that only through a clear understanding of the relevant societal, physical, and coupled natural-humans systems can we resolve such problems. Papers are invited on any theme involving the application of geographical theory and methodology in the resolution of human problems.
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