首页|Unearthing the impact of urban sprawl on transport carbon dioxide emissions:Fresh evidence from 274 Chinese cities
Unearthing the impact of urban sprawl on transport carbon dioxide emissions:Fresh evidence from 274 Chinese cities
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Urban sprawl has been a prevailing phenomenon in developing countries like China,potentially resulting in significant carbon dioxide(CO2)emissions from the transport sector.However,the impact of urban sprawl on transport CO2 emissions(TCEs)is still not fully un-derstood and remains somewhat rudimentary.To systematically investigate how urban sprawl influences TCEs,we employ panel regression and panel threshold regression for 274 Chi-nese cities(2005-2020),and obtain some new findings.Our results affirm that the degree of urban sprawl is positively associated with TCEs,and this holds true in different groups of city size and geographical region,while significant heterogeneity is observed in terms of such impact.Interestingly,we find urban sprawl nonlinearly impacts TCEs-with an equal increase in urban sprawl degree,TCEs are even lower in cities with larger population size and better economic condition,particularly in East China.Furthermore,the low-carbon city pilot policy shows potential in mitigating sprawl's impacton TCEs.Drawing on our findings,we argue that to achieve the target of TCEs reduction in China by curbing urban sprawl,more priority should be placed on relatively small,less developed,and geographically inferior cities for cost-efficiency reasons when formulating future urban development strategies.
transport carbon dioxide emissionsurban sprawlheterogeneous impactcarbon mitigationChina
SHU Tianheng、YU Taofang、LIAO Xia、YANG Shuo
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School of Architecture,Tsinghua University,Beijing 100084,China
Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China
National Key Research and Development Program of China
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