中原城市群生态足迹动态分析及可持续性评价

A Dynamic Analysis of Ecological Footprint and an Assessment of Sustainability of Central Henan Urban Agglomeration

采用生态足迹模型分析了2005年至2009年中原城市群生态足迹的逐年变化情况以及2009年各市生态可持续性。结果表明,2005年至2009年中原城市群的人均生态足迹逐年递增,年均增幅到达4.76%,人均生态承载力历年来略有减少,五年内共减少0.005hm2;2009年中原城市群九市之间的生态足迹差异较大,前4位依次为济源、平顶山、焦作、洛阳,其余5个城市相差不大,九市中最大与最小人均生态足迹相差2.89倍。化石燃料用地是各城市人均生态足迹差异的主要原因;中原城市群的生态赤字普遍存在且有恶化趋势;针对这种情况,文章给出了相应对策及建议。

Based on ecological footprint（EF） model,the change of EFs in central Henan urban agglomeration was studied from 2005 to 2009 and the ecological sustainability of cities was evaluated in 2009.The study shows that the per capita EF of central Henan urban agglomeration increases year by year with an annual increasing rate of 4.76% from 2005 to 2009,and the per capita ecological carrying capacity decreases slightly to a total reduction of 0.005 hectares.In 2009,among all cities the EFs had an enormous difference.The four highest EFs are observed in cities like Jiyuan,Pingdingshan,Jiaozuo and Luoyang and among the other five cities,EFs have not changed distinctly.The largest EF is as approximately 2.89 times as that of the smallest.The energy land is the most important factor that contributes to EF differences.The ecological deficit is universal and increases year by year.In view of this situation,countermeasures and suggestions have been given.