基于生态足迹模型的莱阳市可持续发展评估
2012-06-04孙建立
孙建立
摘要:本文基于对山东省莱阳市生态足迹的测算,从供需平衡状况、供需结构和资源利用效率三个方面分析了莱阳市可持续发展状况。结果表明:莱阳市2010年的人均生态赤字1.220087hm2,其发展处于不可持续状态。另外,莱阳市人均生态足迹的供需结构具有明显的不对称性,且当前资源利用效率还较低。在此基础上,系统地分析了其成因,提出了解决方案,并对发现的生态足迹法存在的一些问题进行了讨论。
关键词:可持续发展;生态足迹;生态承载力;莱阳市
Abstract: According to the calculation of ecological footprint of Laiyang City, Shandong Province, the paper analyzed the sustainable development from the balance of supply and demand, the structure of supply and demand and the efficiency of biological resources usage. The results showed that the ecological deficit per capita of Laiyang City in 2010 was 1.220087hm2, which meant that the present developing situation of Laiyang City is unsustainable; On the other hand the structure of supply and demand was obviously dissymmetry and the present efficiency of biological resources was lower. Based on the results, this paper analyzed the reasons, resolvents were put forward and also some problems on ecological footprint found during the calculation process were discussed.
Keywords: sustainable development; ecological footprint; ecological capacity; Laiyang City
中图分类号:F205文献标识码: A 文章编号:2095-2104(2012)05-0020-02
0 引言
可持续发展是寻求一种最佳的生态系统以支持生态的完整性和人类愿望的实现,实现整体上的良性循环。生态足迹是指按可持续发展模式,支持给定数量的人口消费所需要的生物生产型土地面积,其核心观点是把人类对资源和环境的利用换算成对土地和水域面积的占用,反映资源消耗和废物吸收所需要的生产性土地面积[1]。
笔者运用生态足迹法对莱阳市可持续发展状况进行了定量评价,并综合当地的实际情况进行了赤字原因和对策分析。最后,对生态足迹法应改进的几个方面进行了论述。
1 研究方法
生态足迹法从生态供给与生态需求两方面对区域生态经济系统供需平衡状况进行综合测度,从需求面计算生态足迹,从供给面计算生态承载力,并通过两者的比较,评价研究对象的可持续发展状况[2-5]。
2 计算与分析
2.1莱阳市2010年生态足迹计算……p>
