Journal of Geographical Sciences ›› 2005, Vol. 15 ›› Issue (1): 44-52.doi: 10.1360/gs050106

• Climate and Environmental Change • Previous Articles     Next Articles

Ecological footprint analysis based on RS and GIS in arid land

CHANG Bin, XIONG Liya   

  1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
  • Received:2004-09-26 Revised:2004-11-20 Online:2005-03-25 Published:2005-03-25
  • Supported by:

    Knowledge Innovation Project of CAS, No.KZCX-10-09; Project of Office of the Leading Group for Western Region Development of the State Council, No.[2002]11

Abstract:

Sustainable development has become a primary objective for many countries and regions throughout the world now. The ecological footprint (EF) is a kind of concise method of quantifiably measuring the natural capital consumption and it can reflect the goal of sustainability. In this paper, the concept, the theory and method of ecological footprint are introduced. On this basis, the study brings forward the method of ecological footprint and capacity prediction. The method is employed for the ecological footprint prediction combining consumption model with population model and the technique is adopted for the ecological capacity (EC) prediction uniting the Geographical Cellular Automata (Geo CA) and Geographic Information System (GIS). The above models and methods are employed to calculate EF and EC in 1995 and 2000 and predict them in 2005 in Hexi Corridor. The result shows that EF is continually increasing, and EC ascended in the anterior 5 years and will descend in the posterior 5 years. This suit of method is of the character of accuracy and speediness.

Key words: RS, GIS, Cellular Automata, ecological footprint, arid land, Hexi Corridor