城市空间结构与家庭出行碳排放分析——以武汉市为例

Urban spatial structure and household travel carbon emissions:taking Wuhan City for example

选取武汉市沌口东风阳光城及青山区108街坊两个社区作为研究对象,通过家庭出行冷热点分析,对其土地利用、路网密度以及社会经济属性等方面进行了比较。研究发现,两个社区在家庭出行碳排放量方面存在巨大差异,居住小区的土地混合度越低,家庭碳排放量越高;路网密度越大,公共交通站点越密集,家庭出行碳排放量越小;家庭社会经济水平越高,家庭出行碳排放量越大。进一步的分析发现,这种差异与二者不同的开发历史、空间布局以及社会经济等因素有关。最后,从微观层面提出了低碳城市规划和建设的策略。

Based on a questionnaire survey, this essay selects two communities of Dongfeng Sunshine City and Qingshan 108 Community to explore the correlations between household travel carbon emissions and household around land use, road network density and socio - economic factors through hot/cold spot analysis. The results show the huge gap of household travel carbon emissions between the two communities. Firstly, the lower residential area land mixing degree, the higher household travel carbon emissions. Secondly, the greater road network den- sity corresponds with the more intensive public transit sites, and the lower household travel carbon emissions. Thirdly, family socio - economic level shows positive relation with household travel carbon emissions. The further analysis indicates that the difference may be caused by the development history, space layout and socio - economic factors, such as the family＇ s car ownership, household income, household education level, etc. al. Finally, some spatial planning implications and proposals are raised to low carbon community planning.