Acta Geographica Sinica ›› 2002, Vol. 57 ›› Issue (1): 67-75.doi: 10.11821/xb200201008

Previous Articles     Next Articles

Models for Landscape Connectivity and Their Applications

YUE Tian-xiang, YE Qin-hua   

  1. State Key Laboratory of Resources and Environment Information System, Institute of Geographic Sciences and Natural Resources Research, CAS Beijing 100101, China
  • Received:2001-06-04 Revised:2001-09-26 Online:2002-01-25 Published:2002-01-25
  • Supported by:

    Knowledge Innovation Project, CAS, No. kzcx2-308-02; Director Fund for Knowledge Innovation Project of Institute of Geographic Sciences and Natural Resources Recearch, CAS, No. SJ10G-D00-02


The models for landscape connectivity are distinguished into model for line connectivity, one for vertex connectivity, another for network connectivity and still another for patch connectivity. Because the models for line connectivity, for vertex connectivity, and for network connectivity have been long studied and have become ripened, the model for patch connectivity is paid special attention in this paper. The patch connectivity is defined as the average movement efficiency (minimizing movement distance) of animal migrants or plant propagules in patches of a region under consideration. According to this definition, a model for landscape connectivity is mathematically deduced, which applies to GIS data. The application of model for patch connectivity in the new-born wetland of the Yellow River Delta shows that patch connectivity has a negative interrelation with human impact intensity and landscape diversity.

Key words: landscape connectivity, mathematical model, human impact, landscape diversity, Yellow River Delta