Journal of Geographical Sciences ›› 2009, Vol. 19 ›› Issue (3): 359-372.doi: 10.1007/s11442-009-0359-7

• Climate and Environmental Change • Previous Articles     Next Articles

Ecologically based landscape pattern optimization in northwest of Beijing

YUE Depeng1, WANG Jiping2, LIU Yongbing3, ZHANG Xiaoli1, LI Hailong4, WANG Jie3   

  1. 1. School of Forestry, Beijing Forestry Univ.|Key Laboratory of Forest Resources Cultivation and Conservation,Ministry of Education, Beijing 100083, China|
    2. Research Center for Eco-Environmental Sciences, CAS, Beijing 100085, China|
    3. Environmental Protection Research Institute of Light Industry, Beijing 100089, China|
    4. The Graduate School of Landscape Architecture, Peking University, Beijing 100871, China
  • Received:2008-09-01 Revised:2009-01-12 Online:2009-06-25 Published:2010-09-18
  • Supported by:

    Program for New Century Excellent Talent in the University, No.NCET-06-0122; The National Water Special Project, No.2008ZX07526-002-02; Specific Financial Funds Project of Beijing Academy of Science and Technology (BJAST), Platform Construction for Typical Contaminated Soil Remediation Technology of Beijing (2008A-1); Plan Support for Innovative Team (2008A-6) of BJAST; NSFC, No.30871964; BJNSFC, No.4073036

Abstract:

Supported by the technologies of remote sensing (RS) and geographical information system (GIS), we chose northwest of Beijing as a study area and gave priority to understanding of the spatial-temporal characteristics of landscape pattern change through visually interpreted Landsat TM images of 1989, 1996 and 2005. It is believed that there were a series of landscape ecological problems caused by city expansion: landscape ecological connectivity was low; landscape structure was simplified; the fragmentation of green land patch was more obvious on the plain areas, moreover, spatial distribution of green land was unbalanced. For this reason, this study adopted accumulative cost distance model, combined with ecosystem services and spatial interactions of landscape types, analyzed the spatial difference of the ecological function and the compactness of landscape structure in the study area, and further discussed the landscape pattern optimization proposal. We find that it is essential to protect and establish ecological sources, to establish urban ecological corridors, and to establish ecological nodes at the landscape ecological strategic positions so as to intensify spatial relationships among landscape elements and maintain continuity of landscape ecological process and pattern in the course of city expansion. The methods and final results from this study are expected to be useful for landscape ecological planning in Beijing region.

Key words: accumulative cost distance model, landscape pattern optimization, Beijing