Landscape patterns of Zhengzhou urban area: An assessment based on QuickBird imagery
基于QuickBird影像的郑州市城区景观格局评价

In this paper, the spatial patterns of different land use types in Zhengzhou urban area were analyzed at landscape level and class level, based on the relevant maps interpreted by high resolution QuickBird imagery in August 2005 and with the aid of GIS software ArcView and landscape pattern analysis software Fragstats. The results showed that greenbelt had the largest area, occupying 35.51%, while unused land had the smallest one, accounting for 0.33% of the total. Spatially, greenbelt was round in shape and with small and fragmental patches, residential and industrial lands were rectangle, and road system was grid-shaped. There was an evident difference in the horizontal distribution of the landscape patterns. The landscape heterogeneity was the largest in the southwest, greenbelt was more in the east than in the west, and the whole urban landscape was characterized by large patches.