城市温室气体排放空间特征及分区

Spatial characteristics and zoning of urban greenhouse gas emissions

作为地表受人类活动影响最深刻的区域,城市系统成为能源消耗和碳排放的集中地.由于不同功能区的空间分布差异,城市系统中存在碳流动过程的特异性及温室气体排放的空间异质性等问题.在分析城市空间形态与温室气体排放的关系的基础上,从城市碳流动特征出发,构建基于温室气体排放的城市空间分区体系,即根据人类社会经济活动类型结合城市碳流动三要素进行一级分类;其次,基于现有的城市用地类型,根据一级分类结果对城市不同功能区用地进行二级分类.通过分区,可实现城市温室气体排放的定量化、空间化和可视化,为相关研究和管理提供参考和借鉴.

As profoundly impacted by human activities on the earth,energy consumption and carbon emission was concentrated in the urban system. Due to the different functional areas located in different areas,the problems of the specificity in the carbon flow processes and the spatial heterogeneity in the greenhouse gas emissions came to the urban system. On the basis of the analysis of the relationship be-tween urban spatial form and greenhouse gas emissions,beginning with urban carbon flow characteris- tics,we constructed the urban space zoning system based on greenhouse gas emissions. At first, ac-cording to the types of social and economic activities,combined with the three elements of urban car-bon flow,the primary classification was conducted. Then,based on the existing urban land use types, different functional areas of urban were zoned via secondary classification. It enables to qualify,to spe-cialize and to visualize the urban greenhouse gas emissions through zoning,and provides a reference for related research and management as well.