Urbanization has changed the landscape structure of urban area.By studying the vegetation fraction and its pattern of urban vegetation,the changing process and the intensity of urban landscape could be emerged once again.Meanwhile,it indirectly makes know the eco-environmental state in city.From 1990 to 2005,vegetation system in Guangzhou was experienced a period of destroying and the next period of restoration.This procedure was studying by translating TM remote sensing image.Based on it,regional vegetation fraction and its grade structure were showed with the translated images.The research was also indicated that regional vegetation fraction was decreased seriously in whole study area-full Guangzhou,and until now the tendency to decrease vegetation fraction in city centre of Guangzhou is continuing,but being slowly.In suburb district-Conghua,vegetation system is becoming better and better.Its vegetation fraction is approaching the highest level in the past 15 years,and vegetation grade structure is more perfect.In vegetation system,high grade vegetation fraction is increasing.Vegetation system in Conghua is so important to impact the tendency of vegetation system in full Guangzhou.
夏北成, 龚建周. 广州市植被覆盖度等级结构及其时空格局特征[J]. , 2006, 25(5): 417-422.
XIA Bei-cheng, GONG Jian-zhou. Spatio-temporal pattern and hierachical characteristics of vegetation fraction from 1990 to 2005 in Guangzhou. , 2006, 25(5): 417-422.
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