济南市城市居民生活消费的生态足迹

Ecological footprint of urban residents' living consumption in Jinan City

城市既是区域商品、信息与技术的生产者和输出中心 ,又是生态系统初级生产和服务功能的净输入者和消费者。城市居民必须从城市以外的、具有生态生产力的广阔土地上获取粮食、水、煤炭等自然资源 ,同时还依赖城市外围的生态系统提供清洁空气并消纳废物。生态分析是定量评估城市对外部生态系统占用的有效方法 ,本文据此判定了济南市城市居民生活消费的生态足迹。根据估算 ,2 0 0 1年济南市城市居民生活消费的人均生态足迹为 1 0 16 9hm2 ,总生态 2 715× 10 6hm2 ,是济南市建成区面积的 15 4倍。为维持城市持续健康发展 ,必须通过科技创新提高生产力水平和资源利用率 ,倡导资源节约型的城市生活消费方式和消费观念 ,以有限的资源占用实现高质量的生活水平。

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 EF analysis,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.