基于能值改进的生态足迹模型在济南市的应用分析  

Application and Analysis of the Emergetic Ecological Footprint Method to Jinan City

作　　者：张延安[1] 郑昭佩[1] 张文岚[1] 

机构地区：[1]山东师范大学人口资源与环境学院,山东济南250014

出　　处：《环境科学与管理》2010年第2期134-138,157,共6页Environmental Science and Management

摘　　要：运用传统生态足迹模型及基于能值改进的生态足迹模型分别计算了2007年济南市生态足迹与生态承载力,得出的人均生态赤字分别为2.4974hm2、5.2769hm2.两者的计算结果都得出2007年济南市的生态足迹超过其生态承载力,表明济南市的人类活动对该区域的生态系统的影响远超过了该区域的生态承载力范围,将对生态系统造成较大的压力,生态环境处于不安全状态,研究区属于不可持续的地区.基于能值分析理论改进的生态足迹模型所采用的能值转换率、能值密度等参数更加稳定,克服了传统模型的不稳定、精确度不高的缺点,使计算结果更具有可信度,更准确地反映研究区域生态经济系统的环境状况。Using the traditional model of ecological footprint and emergy -based improvement in the ecological footprint model calculates respectively Jinan City＇s ecological footprint and ecology supporting capacity, he per capita ecological deficit respectively are 2. 497 4 hm^2 ,5. 276 9 hm2. Both of computed results obtain Jinan＇s ecology trail in 2007 surpasses its ecology supporting capacity. Indicated that Jinan＇s human activity to this region＇s ecosystem＇s influence has far surpassed this region＇s ecology supporting capacity scope. It will creates the tremendous pressure to the ecosystem, the ecological environment is in the unsafe condition, belongs to the unsustainable area. The energy conversion rate and the energy density used in the emergy - based improvement in the ecological footprint model are more stability, overcomes the conventional model＇s shortcoming of not stably, the precision not high, enables the computed result to have the confidence level, reflectes accurately the researched region＇s ecology economic system＇s environmental aspect.

关 键 词：济南市 生态足迹 生态承载力 能值 

分 类 号：X22[环境科学与工程—环境科学]