Abstract: Using GIS software, ecological sensitivity analysis was conducted in Zhengzhou City, and ecological sensitivity zoning was carried out. Six factors were selected, including vegetation coverage, elevation, slope, water buffer zone, population density, and land use type,the fuzzy analytic hierarchy process （FAHP） was used to build the evaluation model, and the spatial analysis function of GIS software was used to analyze the ecological sensitivity of a single factor and the comprehensive ecological sensitivity of weighted superposition. The results indicated that Zhengzhou City was mainly composed of moderately sensitive areas, followed by highly sensitive areas; moderately sensitive areas accounted for 37.05% of the research area total area, mainly distributed in Yellow River Basin in the north of Zhengzhou, the plain in the east of city, and the surrounding areas of Songshan Mountains in the west of Zhengzhou City;highly sensitive areas accounted for 29.19% of the research area total area, mainly distributed in low mountain and hilly areas with higher elevations and larger slopes in Songshan and Jishan Mountains;low sensitivity areas accounted for 21.03% of the research area total area, mainly distributed in the Yellow River water area in the north of Zhengzhou City and the surrounding areas of the urban central planning area in the eastern part of Zhengzhou City;the insensitive areas accounted for 12.73% of the research area total area, mainly distributed in the central area in the east of Zhengzhou, the urban built-up areas of Zhongmu County and Xinzheng City under its jurisdiction, and scattered in some parts of the west.

Key words: ecological sensitivity, GIS, fuzzy analytic hierarchy process（FAHP）, Zhengzhou City, Henan Province