西安城市交通生态足迹研究

Study on Ecological Footprint of Urban Traffic in Xi'an

运用生态足迹理论,构建了交通生态足迹的计算模型和方法,对2012年西安城市交通生态足迹、生态效率与环境压力进行了定量分析。结果得出西安市2012年交通生态足迹为2572485.3。从构成看,私家车生态足迹占总量的47.3%,远高于其他交通方式的生态足迹;从生态效率与生态足迹强度来看,公交车的生态效率最高,而私家车最低。因此,为了提高城市交通效率,减少污染物排放,西安需要优化城市交通结构,大力发展公共交通,限制私家车的规模,努力推动轨道交通的发展,以促进城市交通的可持续发展。

By the ecological footprint theory, we construct a mathematical model and associated computation method of transport ecological footprint, and analyze quantitatively the traffic ecological footprint, eco-efficiency and environmental pressures in 2012 at Xi＇an. The results show that the ecological footprint of Xi＇an in 2012 was 2572485.3hm2. From the composition of the ecological footprint, the ecological footprint of private cars was accounting for 47.3% of the total, which is much higher than other transport modes. From the eco-efficiency and ecological footprint intensity, bus is the top one, while private cars is lowest one. Therefore, in order to improve the urban transport efficiency and reduce pollutant emissions, we need to optimize urban traffic structure, vigorously develop public transport, limit the scale of private cars, and make an effort to promote the development of rail transportation which will promote the sustainable development of urban transportation.