关键词: 截形叶螨, 玉米, 存活曲线, 种群参数

Abstract: City is the production and output center of commodities,information and services for the local area.On the other hand,it is the input center and net consumer of primary production and ecological service of ecosystem.The urban inhabitants must rely on corn,water,coal and other natural resources from the outside ecologically productive lands.The outside ecosystem also provides clean air and assimilates waste from the cities.Ecological footprint analysis is an effective method for evaluating the Cities' appropriation on ecosystem.Using EFanalysis,the ecological footprint of urban residents' living consumption in Jinan City is estimated.Based on conservative estimation,the per capita ecological footprint of urban residents' living consumption is 1.0169 hm².The gross ecological footprint of urban living consumption of Jinan City is 2.715?106 hm²,which is 154 times larger than the built-up area.For the sustainable and healthy development of the city,the productive ability and resources utilization ratio should be enhanced by science and technology innovation.The resources-saving consumption concept and pattern should be advocated in order to attain high quality life by definite resources appropriation.

Key words: Tetranychus truncates, Corn, Survival curve, Population parameters