Abstract:

Based on the remote sensing images of 1976, 1990, 2001, 2006 and 2007, the urban spatial expansion information of Suihua city was extracted with the method of human-computer interactive. This paper focused on the quantitative characteristic and space variation characteristic about Suihua city using GIS technology .The results showed that during the 33 years from 1976 to 2009, the urban area of Suihua increased persistently, especially between 2001 and 2009. The center of the urban land moves to the northwest, then to the southwest. The expansion of urban land had obvious space differentiation characteristics, which showed that the expansion directions of the city were different at different time, city compactness became small and the morphological feature became complex.