GEOGRAPHICAL RESEARCH ›› 2019, Vol. 38 ›› Issue (6): 1464-1480.doi: 10.11821/dlyj020190096

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Impact of built environment on carbon emissions from daily travel of urban residents: A case study of 248 residential areas in Kaifeng

Peijun RONG1,2(), Lijun ZHANG2(), Yaochen QIN2, Yang LI1,2, Zhicheng ZHENG2   

  1. 1. College of Tourism and Exhibition/ Collaborative Innovation Center on Urban and Rural Harmonious Development of Henan Province, Henan University of Economics and Law, Zhengzhou 450046 , China
    2. College of Environment and Planning, Henan University, Kaifeng 475004, Henan, China
  • Received:2019-01-29 Revised:2019-05-06 Online:2019-06-20 Published:2019-06-12

Abstract:

Residential area is the most basic unit of residential daily life, and the impact of its built environment on daily travel carbon emissions is a major concern within academic field. We accounted all kinds of carbon emissions from residential daily travel based on a large number of sample questionnaire data, identified the built environment characteristics of 248 residential areas in the main urban area of Kaifeng city by POI capture, network analysis, spatial syntax and other methods, and analyzed the spatial distribution and the differentiation mechanism of carbon emissions of various types of residents in residential areas by means of nuclear density and GWR. The results show that: (1) There is a significant spatial difference in urban residents' travel carbon emissions, and there is a great difference in the fairness of public service supply in residential areas. (2) The study in residential area scale can better reveal the impact of built environment on travel carbon emissions. Location, accessibility, road network design, building density and land use mix degree, etc. have significant impacts on the residential daily travel carbon emissions. However, for different travel purposes, the impacts of these factors are quite different. What's more, there is a spatial asymptotic difference in the impact intensity in different directions. (3) According to the carbon emission grade combination of various purposes and corresponding built environment indexes, it can be identified that the carbon emission level of outer high-density under-accessible low-mixed residential areas is of high emissions, and that of inner low-density high-accessible high-mixed residential areas is of low emissions. The results can provide a scientific basis for the spatial reconstruction of residential areas and the zoning planning and governance of urban carbon emissions.

Key words: travel carbon emissions, residential area, built environment, impact mechanism, spatial differentiation