RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2008, Vol. 17 >> Issue (1): 47-47.

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DYNAMIC CHANGES OF LANDSCAPE PATTERN IN THE CITY OF CHONGQING

ZHAO Wei1,XIE Deti1|LIU Hongbin1,2   

  • Received:1900-01-01 Revised:1900-01-01 Online:2008-01-20

Abstract:

Land use/cover change as part of the global environment change has been the focus of considerable attention for a long time,and landscape ecological analysis is one of the most important research methods.In this paper,based on fractal theory,GIS and remote sensing imagines,the changes of landscape pattern of Chongqing City was analyzed in detail by using related indexes of landscape ecology.Taking landscape pattern fractal model and Landsat TM/ETM images in 1995 and 2000 as the basic data,the spatialtemporal database of land use in Chongqing City was established; and using fractal model of landscape pattern,fractal dimension and stability index of landscape pattern,landscape diversity index,landscape apartness index,landscape fragmentation index,landscape evenness index and landscape dominance index were obtained.The results showed that during the research period,the fractal dimensions of paddy fields,dry land and wet areas increased obviously,whereas for forest land,shrubbery land and grass land,the fractal dimensions decreased.For all types of land,the values of landscape diversity index and landscape apartness index have increased but landscape dominance index value has rather decreased.Meanwhile it was found that the relation between fractal dimension and landscape fragmentation index showed significant positive correlation.Finally,some advices for the sustainable development of landscape pattern in Chongqing City were put forward.

Key words: fractal dimension, remote sensing, landscape pattern, Chongqing City

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