西安市近几年水污染生态足迹分析

The water pollution ecological footprint analysis in Xi′an in recent years

基于生态足迹理论,对2009—2015年西安市水污染足迹和水污染环境承载力进行估算与分析,揭示水污染足迹的年际变化趋势.结果表明,2009—2015年水污染足迹(290.8×10~8~468.4×10~8 m^2)和水污染承载力(10.1×10~8~26.3×10~8 m^2)呈现明显增长趋势,其年增长率分别为8.03%和22.88%,水污染生态足迹处于严重赤字水平.人均水污染生态足迹和人均水环境承载力均呈现增长态势,其年增长率分别为8.03%和24.36%,西安GDP污染足迹高于北京和上海43.19%和92.73%.

Based on the ecological footprint theory,bosed on the data from 2009 to 2015,Xi′an water footprint and water environment beared capacity are estimated and analyzed to reveal the interannual variation trend of water pollution footprint.The results show that the water pollution footprint(2009-2015,290.8×108~468.4×108m2)and the beared capacity of water pollution(10.1×108~26.3×108m2)present an obvious growth trend,with an annual growth rate of 8.03%and 22.88%respectively.The serious water pollution is in the state of ecological footprint deficit.Per capita water pollution ecology and per capita water environment bearing capacity increase with an annual growth rate of 8.03%and 24.36%respectively,while the GDP pollution footprint of Xi′an is significantly higher than that of Beijing and Shanghai-respectively 43.19%and 92.73%.