Analysis on Spatial and Temporal Evolution of Carbon Balance Amounts and Urban Network Structure in the Pearl River Delta Urban Agglomeration
JIANG Yuanyuan
TANG Diwei
TAO Wen
Abstract：To explore the spatiotemporal pattern of carbon balance amounts and the characteristics of the urban network structure in the Pearl River Delta urban agglomeration,remote sensing data of the Pearl River Delta urban agglomeration from 2001 to 2021 were used to calculate the carbon balance amounts.Spatial autocorrelation and social network analysis methods were then employed to reveal the spatiotemporal distribution and inter-city network structure of carbon balance amounts.The results showed that the carbon balance amounts in the Pearl River Delta urban agglomeration exhibited a declining trend from 2001 to 2021,mainly due to a significant increase in carbon emission amounts,while carbon sequestration amounts changed only slightly,and there was a significant difference in the decrease among cities.Significant spatial heterogeneity of carbon balance amounts was observed,which generally followed a ″high on the periphery,low in the center″ pattern,with spatial autocorrelation dominated by ″high-high clusters″ and ″low-low clusters″.The carbon balance amounts spatial network structure of the Pearl River Delta urban agglomeration was found to be relatively stable.Foshan and Zhaoqing were located at the network core and classified as net beneficiary nodes;Guangzhou and Dongguan functioned as intermediary nodes facilitating resource circulation;the remaining cities acted as bidirectional spillover nodes,guiding carbon balance amounts flow across the cities.This study provided scientific support for establishing cross-regional ecological compensation mechanisms and formulating differentiated carbon reduction strategies.
Keywords：Pearl River Delta urban agglomerationcarbon balancecarbon sequestrationcarbon emissionssocial network analysisspatial network structure
Publication Date：2025-09-20
Online Publishing Date：2025-09-24(First online date of this platform, not the publication date of the document)
Pages：9( 431-439 )