Acta Geographica Sinica ›› 2017, Vol. 72 ›› Issue (6): 1017-1031.doi: 10.11821/dlxb201706006

Special Issue: 气候变化与地表过程

• Urban Research • Previous Articles     Next Articles

Spatial structure comparison of urban agglomerations between China and USA in a perspective of impervious surface coverage: A case study of Beijing-Tianjin-Hebei and Boswash

Shisong CAO1,2(), Deyong HU1,2(), Wenji ZHAO1,2, Shanshan CHEN1,2, Qingwen CHENG3   

  1. 1. College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China
    2. Key Laboratory of Resource Environment and GIS of Beijing, Beijing 100048, China
    3. China Aerospace Science & Industry Corp, Beijing 100048, China
  • Received:2016-05-24 Revised:2017-02-18 Online:2017-06-25 Published:2017-07-13
  • Supported by:
    National Natural Science Foundation of China, No.41671339

Abstract:

It is important to apply impervious surface product to the study of urban agglomeration spatial structure. Under the background of China's rapid urbanization, study on comparative analysis of urban agglomerations spatial structure between China and USA can provide policy proposals of urban agglomeration space optimization for Chinese government. Taking Beijing-Tianjin-Hebei (BTH) and Boswash as study areas, firstly, this paper maps the extent and density of impervious surface for BTH and Boswash respectively in seven periods of 1972, 1982, 1991, 1995, 2001, 2006 and 2011. Furthermore, at different scales of urban agglomeration and metropolitan region, landscape pattern index, gravitational index and spatial analysis were used to analyze differences of spatial structure between BTH and Boswash. The results showed that (1) impervious surface area increased rapidly in BTH, while it remained stable in Boswash. (2) BTH spatial structure had experienced different periods including isolated city development, dual-core city development, group city development and network-style city development, while Boswash spatial structure was more stable, and its spatial pattern had shown a "point-axis strip" feature. (3) The spatial pattern of high-high assembling region of impervious surface had showed a "standing pancake" feature in BTH, while a "multi-center gather and disperse group" in Boswash. (4) All of the percentages of impervious surface area in ecology, living, and production land in BTH were higher than those in Boswash. At last, from the perspective of urban agglomeration space optimization, the development proposals for BTH were proposed.

Key words: impervious surface coverage, urban agglomeration, spatial structure comparison, landscape pattern, ecology-living-production land