宁德市基于生态足迹的可持续发展评价

 可持续发展的定量测度研究是当前国际上关于生态经济研究的前沿问题之一。生态足迹分析法是近年来发展的用于研究和判断一个国家或地区可持续发展状况的新方法。通过比较支持特定区域人类社会所有消费活动所需要的土地(生态足迹)与该区域可提供的生物生产性土地(生态承载力)可判断区域发展的可持续性。该文在介绍生态足迹概念和计算方法的基础上,以福建省宁德市2002年统计年鉴数据为依据,计算分析得到宁德市2002年人均生态足迹为0.7697hm2,人均生态承载力为0.6210 hm2,人均生态足迹赤字为0.1487hm2。反映出该市人类的生产、生活强度超过了生态系统的承载能力,区域生态系统处于人类的过度开发利用状态下。造成该市生态足迹赤字的主要影响因子是资源过度消耗、人口增长和耕地减少等

Evaluation of the sustainable development of Ningde City based on ecological footprint

Evaluation of the sustainable development is one of the frontiers of ecological economics.The present study aims to determine whether the human being's needs can be satisfied by the ecological carrying capacity of nature by quantitative indicators.Ecological Footprint Analysis is a new method for measuring sustainable development of a region.The method is used to calculate the ecological footprint from the facet of need and the ecological carrying capacity from the facet of support.Based on its results,the sustainable development situation of a country or an area can be evaluated.Based on the introduction to the concept and the calculation method of ecological footprint indicator,the authors calculated and analyzed the ecological footprints of Ningde City in 2002 according to the data of the statistical yearbooks.According to this calculation,the ecological footprint and the ecological carrying capacity and the ecological deficit per capita of Ningde in 2002 were 0.769 7 hm²,0.621 0 hm² and 0.148 7 hm² respectively.The ecological footprint deficit showed that the human load has already stayed beyond the regional ecological capacity and the regional natural ecosystem is under great pressure of human activities.