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Effects of the polycentric spatial structures of Chinese city regions on CO_2 concentrations

机译：中国城市地区多中心空间结构对CO_2浓度的影响

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摘要

The environmental sustainability of polycentric spatial structures in urban planning must be evaluated to ensure the sustainable development of city regions. Given the mixed conclusions of previous studies, as well as the lack of information on reliable methods of assessment and quantifiable mechanisms, a three-year dataset for prefecture-level and above city regions in China and spatial econometric models were used to examine the relationship between regional polycentricity and CO2 concentrations. After robust testing, we confirmed that polycentric structures decrease the mean CO2 concentrations of city regions, significantly reducing CO2 concentrations in primary city centers and mildly increasing those in city subcenters. Further quantitative analyses of the mechanisms underlying these patterns revealed that the CO2-reduction effect of polycentric structures is due to the balancing of reductions in commuting duration, transference of industrial CO2 to neighboring areas, and an increase in household CO2 emissions.
机译：必须评估城市规划中的多中心空间结构的环境可持续性，以确保城市地区的可持续发展。鉴于以前研究的得出比较的得出比较，以及缺乏关于可靠的评估方法和可量化机制的信息，县级和中国城市地区的三年数据集和空间计量经济模型用于检查关系之间的关系区域多重核和二氧化碳浓度。经过稳健的测试，我们证实了多中心结构降低了城市地区的平均二氧化碳浓度，显着降低了主要城市中心的二氧化碳浓度，并轻微增加了城市贫民人员的CO2浓度。这些模式下面的机制的进一步定量分析表明，多中心结构的CO2减少效果是由于降低通勤持续时间，工业二氧化碳转移到邻近区域的平衡，以及家庭二氧化碳排放的增加。

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  • 来源
    《Transportation Research》 |2020年第5期|102333.1-102333.12|共12页
  • 作者

    Sun Bindong; Han Shuaishuai; Li Wan;

  • 作者单位

    East China Normal Univ Res Ctr China Adm Div Shanghai 200241 Peoples R China|East China Normal Univ Future City Lab Shanghai 200241 Peoples R China|Inst Ecochongming 20 Cuiniao Rd Shanghai 202162 Peoples R China|East China Normal Univ Ctr Modern Chinese City Studies Shanghai 200241 Peoples R China|East China Normal Univ Sch Urban & Reg Sci 500 Dongchuan Rd Shanghai 200241 Peoples R China;

    East China Normal Univ Res Ctr China Adm Div Shanghai 200241 Peoples R China|East China Normal Univ Future City Lab Shanghai 200241 Peoples R China|Inst Ecochongming 20 Cuiniao Rd Shanghai 202162 Peoples R China|East China Normal Univ Ctr Modern Chinese City Studies Shanghai 200241 Peoples R China|East China Normal Univ Sch Urban & Reg Sci 500 Dongchuan Rd Shanghai 200241 Peoples R China;

    East China Normal Univ Res Ctr China Adm Div Shanghai 200241 Peoples R China|East China Normal Univ Future City Lab Shanghai 200241 Peoples R China|Inst Ecochongming 20 Cuiniao Rd Shanghai 202162 Peoples R China|East China Normal Univ Ctr Modern Chinese City Studies Shanghai 200241 Peoples R China|East China Normal Univ Sch Urban & Reg Sci 500 Dongchuan Rd Shanghai 200241 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Urban spatial structure; CO2 concentrations; Polycentricity; City region; Sustainable development; Chinese urban planning;

    机译：城市空间结构;二氧化碳浓度;多层;城市地区;可持续发展;中国城市规划;

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