Assessing the impacts of urban functional form on anthropogenic carbon emissions: A case study of 31 major cities in China

作者：Ge Tan, Xiuyuan Zhang, Shuping Xiong, Zihao Sun, Yichen Lei, Haoyu Wang, Shihong Du · 发表于：Ecological Indicators · 年份：2024 · DOI：10.1016/j.ecolind.2024.112700 · 被引用次数：19 · 研究领域：Urban Heat Island Mitigation、Impact of Light on Environment and Health、Urban Transport and Accessibility

• Functional heterogeneity within cities is taken into account when measuring urban form. • The grid size of 6 km is the optimal scale for analyzing the relationships between urban functional form and carbon emissions. • Revealing specific relationships between urban functional form and carbon emissions. • The topology of road networks is more important than its size for influencing carbon emissions. Urban form, which refers to the land use patterns and the structure of transport network within a city, indirectly influences carbon dioxide emissions in cities by impacting fossil fuel consumption in the transportation and residential sectors. Previous studies on the relationships between urban form and carbon emissions have mainly focused on general analysis at city level, usually considering urban built-up areas as homogenous units, while ignoring the spatial heterogeneity of functions within urban built-up areas. To fill the gap, this study aims to examine the impact of urban functional form on carbon emissions in 31 major cities in China by introducing urban functional zones data to capture the spatial heterogeneity of functions within cities. Firstly, ODIAC (Open-source Data Inventory for Anthropogenic Carbon dioxide) was preprocessed to obtain gridded carbon dioxide emission data as dependent variables. Secondly, a comprehensive indicator system was established to quantify the functional form of a city in terms of both land use patterns and transport networks structure as ...