摘要
生态足迹是近来测度生态可持续发展的一种定量方法,也是一种用来度量人类活动对生态系统压力和影响的一条新途径。对西安市2001年的生态足迹进行了计算,并与一些国家和地区进行了比较。结果表明,2001年西安地区的生态足迹为1.04hm2/人,当地的生态承载力为0.13hm2/人,生态足迹是生态承载力的7.94倍。而西安市的生态足迹为1.28hm2/人,为西安市域生态足迹的9.75倍。西安市的生态足迹略高于中国人均生态足迹(1.20hm2/人),但与其它国家或地区相比较,西安市的生态足迹比较低,这与经济越发达则生态足迹越大相一致。这说明西安市的经济仍不太发达,需要大力发展经济,同时应积极改善城市生态环境,实现城市的可持续发展。
The concept of the 'Ecological Footprint'(EF) is used to quantify the ecological sustainability of human development. It permits estimation of the pressure and impact of human activities on ecosystems. The EF can be applied to urban ecological studies, to determine the impacts of concentrated human settlement. This study calculated the EF of Xi'an in 2001 and compared the result with the EF of a few other countries and regions. The EF of the Xi'an area was estimated at 1.0 ha per person. The ecological carrying capacity of the Xi'an area is calculated to be 0.13 ha per person. Therefore, the EF of the Xi'an area is 7.9 times the area's ecological carrying capacity. The EF of Xi'an City is 1.3 ha per person, which is 9.75 times more than the city's ecological carrying capacity. The EF of Xi'an City is slightly higher than the average EF of China, but it is lower than that of some other countries and regions. The results support an argument that EF increases with higher levels of development. The results similarly support an argument that Xi'an is relatively underdeveloped. The need for further economic development should be balanced with improved ecological conditions and reduced development impact in order to ensure the sustainability of Xi'an city and region.
出处
《水土保持通报》
CSCD
北大核心
2005年第2期92-96,共5页
Bulletin of Soil and Water Conservation
基金
国家重大基础研究前期引导项目 (2 0 0 3CCC 0 1 50 0 )
