摘要
用城市交通生态足迹的计算模型和方法对沈阳市交通生态足迹、生态效率与环境压力指数做了定量分析。结果表明:沈阳市2005年交通生态足迹为62×104hm2,其中,小轿车生态足迹为交通总足迹的49.7%,在交通足迹中影响最大;从城市交通生态效率看,公共汽车最高,为1.48×104人次.hm-2,小轿车最低,为900人次.hm-2;从城市交通环境压力指数看,小轿车最高,为11.37,公共汽车最低,为0.68。提高城市交通效率、减少污染排放带来的环境影响,需要从减少小轿车的交通占用、提高生态效率入手,同时提升公共交通所占比例,优化交通车辆结构,推动城市机动车辆生态效率的整体提高。
By means of the computation module and mode of urban traffic ecological footprint, the ecological footprint, ecological efficiency, and environmental pressure of the urban traffic in Shenyang City, Liaoning Province were investigated. The results showed that the ecological foot-print of Shenyang urban traffic in 2005 was 62 × 10^4 hm^2, among which, the ecological footprint of cars occupied 49.7% of the total traffic footprint, with the greatest influence on the traffic foot-print. From the viewpoint of ecological efficiency of urban traffic, buses had the largest efficiency （ 1.48 × 10^4 person-time · hm^-2） , while cars had the lowest one （900 person-time · hm^-2）. As for the environmental pressure index of urban traffic, it was the highest （ 11.37 ） for cars and the lowest （0.68） for buses. To improve the efficiency of urban traffic and to reduce the environ-mental impact of pollution discharge in Shenyang, the ecological footprint of cars should be reduced, the ecological efficiency as well as the proportion of public traffic should be improved, and the structure of transportation vehicles should be optimized, so as to promote the integral improvement of the ecological efficiency of Shenyang urban motor vehicles.
出处
《生态学杂志》
CAS
CSCD
北大核心
2007年第12期2107-2110,共4页
Chinese Journal of Ecology
基金
教育部优秀中青年教师基金资助项目(1711)
关键词
沈阳
城市交通
生态足迹
生态效率
环境压力指数
Shenyang
urban traffic
ecological footprint
ecological efficiency
environmental pressure index.
