Acta Geographica Sinica ›› 2013, Vol. 68 ›› Issue (10): 1344-1356.doi: 10.11821/dlxb201310004

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Estimation of urban population at daytime and nighttime and analyses of their spatial pattern:A case study of Haidian District, Beijing

QI Wei1,2, LI Ying1,2, LIU Shenghe1, GAO Xiaolu1, ZHAO Meifeng1,2   

  1. 1. Institute of Geographic Sciences and Nature Resources Research, CAS, Beijing 100101, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2013-12-11 Revised:2013-06-27 Online:2013-10-20 Published:2013-10-20
  • Supported by:
    National Science and Technology Support Program, No.2011BAK07B02-02; National Natural Science Foundation of China, No.41271174; National Science and Technology Support Program, No.2012BAI32B06-1

Abstract: Urban population at daytime and nighttime and their spatial distribution are basis for planning urban infrastructure, public services and disaster relief, and it is also a leading edge for urban geography study. Because current statistical data in China cannot distinguish urban population at daytime from that at nighttime, existing research in this field is limited. Aiming to estimate urban population at daytime and nighttime and to analyze their spatial characteristics, this paper establishes a relationship model among urban population, time (daytime or nighttime) and types of land-use, and a population spatial distribution model based on different area weights, and also conducts an empirical study on the Haidian District in Beijing. The results are shown as follows. (1) There are many differences between daytime and nighttime population in spatial structure. Population is more concentrated during daytime. (2) There are many spatial coupling relationships between daytime and nighttime population, such as sandwich mode, inlay mode, convergence mode, and monomer mode. (3) There is a great difference in the use of road networks between daytime and nighttime. This phenomenon is related to the spatial distribution between daytime and nighttime. It seems that daytime population has a notable influence on road expansion. The spatial distribution of daytime and nighttime population also reflects some phenomena in the develop-ment of China, such as the distribution of old residential areas, the construction of new industrial districts, the differences between urban and rural areas, which can provide some reference for the studies in this field and other regional research.

Key words: spatial patterns, urban population at daytime and at nighttime, Beijing, spatial coupling types