基于生态足迹与生态信息法的广州市可持续性研究

The Sustainable Research Based on Ecological Footprint and Ecological Information-based Approach in Guangzhou

生态足迹法和生态信息法分别广泛应用于城市可持续发展评估和生态系统稳定性及有序性评价。由于广州市的发展对中国其他城市具有借鉴作用,因此文章运用生态足迹法和生态信息法分别对广州市1995年~2013年期间可持续性的外部维度和内部维度进行了研究。研究结果表明,从可持续性外部维度来说广州市的消费是不可持续的,1995年~2013年广州市生态足迹分为三个阶段:平稳增加阶段、加速上升阶段和稳定阶段。从可持续性内部维度来说,1995年~2013年广州市能源与物质消费网络结构的有序性经历了先上升、再下降、后平稳的过程,整个消费网络结构的有序性或效率降低,更多的资源消耗在资源传输过程中。通过对比广州市人均生态足迹、消费网络结构的有序性和人口数量的关系,可以发现人口的急剧变化导致了人均生态足迹的增加和城市消费网络结构有序性降低,人口是影响城市可持续性的根本因素之一。

Ecological footprint and ecological information-based approach are applied in assessment ofsustainability and assessment of ecosystem’s stability.Due to the development of the Guangzhou citycould be a reference for other cities in China,the interior and exterior dimensions of sustainability inGuangzhou city during1995-2013are studied via ecological footprint and ecological information-basedapproach.The results showed that,the consumption in Guangzhou was not sustainable for the exterior dimensions of sustainability.The ecological footprint of Guangzhou during1995-2013is divided intothree phases:the steadily increasing phase,the quickly increasing phase and the stead phase.The orderof energy and material consumption network structure went up,down and smooth during1995-2013.Bycomparing the relationship among per capita ecological footprint,the order of network structure and thepopulation in Guangzhou,it can be found that the dramatic change of population led to the increase of percapita ecological footprint and reduction of urban consumption network structure order.The population isone of the fundamental factors which affect urban sustainability.