SCIENTIA GEOGRAPHICA SINICA ›› 2019, Vol. 39 ›› Issue (5): 788-796.doi: 10.13249/j.cnki.sgs.2019.05.010

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Evaluation of Urban Haze Disaster Resilience from the Perspective of Residents’ Activity: A Case Study of the Main Urban Area of Nanjing City

Sun Honghu(), ()   

  1. Provincial Enginnering Laboratory of Smart City Design Simulation & Visualization, School of Architecture and Urban Planning, Nanjing University, Nanjing 210093, Jiangsu, China
  • Received:2018-05-04 Revised:2018-07-16 Online:2019-05-10 Published:2021-03-17
  • Contact: E-mail:shhupup@163.com;zhenfeng@nju.edu.cn
  • Supported by:
    National Natural Science Foundation of China(41571146)

Abstract:

Under the support of spatial big data, urban haze disaster resilience evaluation from the perspective of residents' activities is of great significance to effectively reduce urban haze disaster risk. Through the interpretation of haze disaster resilience and the interaction between residents' activities and built environment, an evaluation index system is constructed. Taking the main urban area of Nanjing as a case, the spatial characteristics are analyzed, and then the space problems are identified. Finally, the strategy of targeted resilience promotion is put forward. The results show that: 1) The disturbance of residents' activities, the adaptability of built environment and the haze disaster resilience are in the middle, middle and low level respectively, the effect of built environment adaptability is limited now. 2) The residents' activity disturbance and the adaptability of the built environment show the spatial characteristics of the "multi core" circle agglomeration, the "strip" agglomeration, respectively, the imbalance of spatial matching between which causes the spatial differentiation of haze disaster resilience not significant, and low level resilience in most area. 3) The disturbance of residents' activities is directly or indirectly caused by the haze severity, the adaptability of the built environment is greatly influenced by haze reduction of ecological environment and haze avoidance of infrastructure, and haze disaster resilience is more affected by residents' activities. The construction of haze disaster resilience should be targeted to enhance the adaptability of the built environment and reduce the disturbance of residents' activities, and pay attention to the matching degree of the two in the spatial optimization measures.

Key words: haze, disaster resilience, resilient city, evaluation, residents’ activities, big spatial data, Nanjing City

CLC Number: 

  • K901