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首页> 外文期刊>Journal of Environmental Management >The evolution of the ecological footprint and its relationship with the urban development of megacities in Western China: The case of Xi'an
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The evolution of the ecological footprint and its relationship with the urban development of megacities in Western China: The case of Xi'an

机译：西部大城市生态足迹的演变及其与城市发展的关系-以西安为例

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摘要

Although China's western cities have developed rapidly in recent years, their ecosystems remain fragile. The conflict between urban development and environmental protection must be resolved to achieve the goal of sustainability. This study examines Xi'an as a case study of a megacity in Western China, calculating the city development index (CDI) and per capita ecological footprint (ef) from 2005 to 2016 to comprehensively calculate Xi'an's eco-efficiency. The E-C elasticity coefficient, which refers to the ratio of the rate of change in CDI to the rate of change in ef, is proposed to characterize the degree to which urban development responds to changes in the ef. The CDI and ef both showed an upward trend from 2005 to 2016. Xi'an's environmental efficiency has grown rapidly, and resource efficiency is the main factor driving its fluctuations in eco-efficiency. The energy consumption and pollution emissions are highly correlated with the CDT, and they are the main factors affecting the development of Xi'an. The relationship between CDI and ef is consistent with the law of diminishing marginal utility, the level of urban development rises and then decreases with the increase in ef.
机译：尽管近年来中国的西部城市发展迅速，但其生态系统仍然脆弱。必须解决城市发展与环境保护之间的冲突，以实现可持续发展的目标。本研究以西安作为西部大城市的案例研究为例，计算了2005年至2016年的城市发展指数（CDI）和人均生态足迹（ef），以全面计算西安的生态效率。提出了E-C弹性系数，该系数是指CDI的变化率与ef的变化率之比，以表征城市发展对ef的变化的响应程度。从2005年到2016年，CDI和ef均呈上升趋势。西安的环境效率快速增长，资源效率是推动其生态效率波动的主要因素。能源消耗和污染排放与CDT高度相关，是影响西安发展的主要因素。 CDI与ef之间的关系符合边际效用递减规律，城市发展水平随ef的增加先上升后下降。

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