基于修正的生态足迹区域可持续发展评价

针对传统的生态足迹模型在区域可持续发展评价中存在的不足,将其分为消费性生态足迹和生产性生态足迹,并以苏州为案例,计算分析了其1993年~2002年的可持续发展状况,测算了其历年的生态经济系统发展能力.结果表明:苏州十年的人均生产性生态赤字均小于全球人均生态赤字0.4 hm2,人均消费性生态赤字则均大于0.4 hm2,其生态环境是区域可持续、全球不可持续型,且生态效率逐年提高;生态经济系统发展能力逐年上升,增加生态足迹多样性是增强发展能力的有效途径;修正后的生态足迹模型及采用的发展能力测算方法可较准确评价区域的可持续发展状况.

Regional Sustainability Evaluation Based on Modified Ecological Footprint

The original ecological footprint model was based on counting consumption of resources,and the consumptive ecological footprint and productive ecological footprint were introduced to overcome the deficiency in evaluation of regional sustainability.And then a case study was made of the Suzhou city,the sustainable development status and eco-economic system development capacity from 1993 to 2002 were assessed and analyzed.The results show that the productive ecological deficits per capita are all less than that of the global 0.4 hm2,while the consumptive ecological deficits per capita are more than that of the global.The ecological environment is regional sustainable but unsustainable relative to the world,and the ecology efficiency increases year after year.The ecological footprint diversity indexes remain stable and the eco-economic system sustainable development capacity increase year after year.The effective way of increasing sustainability capacity is to increase ecological footprint diversity.The resized model and measurement method of sustainable development capacity proposed could better evaluate sustainability of a region.