基于ARIMA模型的广州市生态足迹动态变化过程

Dynamic changes of ecological footprint based on ARIMA Model for Guangzhou City

  • 摘要: 为了解广州市生态可持续问题,运用生态足迹模型对广州市2003—2013年的人均生态承载力和人均生态足迹进行了模拟和分析,在此基础上运用ARIMA模型预测了2014—2020年的生态足迹变化趋势. 结果表明:2003—2013年人均生态足迹呈上升趋势,增幅达到6.7%,人均生态承载力呈下降趋势,人均生态承载力远远小于人均生态足迹,导致生态赤字状态,广州市处于严重不可持续发展状态;2014—2020年人均生态足迹呈上升趋势,2020年达到4.201 8 hm2/人,是2013年的1.02倍,人均生态承载力基本保持不变,人均生态赤字不断增大. 针对广州市严重不可持续发展的现状,提出加大环境生态保护力度、控制人口规模、优化产业结构和转变经济发展方式等实现广州市可持续发展的建议.

     

    Abstract: In order to understand the ecological sustainability of Guangzhou, the ecological carrying capacity per capita and the ecological footprint per capita municipality from 2003 to 2013 in Guangzhou is calculated by applying the ecological footprint model. Based on the computed result, the development trend from 2014 to 2020 is also predicted by using ARIMA model. The results show that:the ecological footprint per capita on the rising from 2003 to 2013,an anual rate of 6.7% the ecological carrying capacity per capita is always bigger the ecological footprint per capita,which means the ecological deficit,and Guangzhou city is in serious unsustainable development state.The predicted results show the ecological footprint per capita has been rising from 2013 to 2020 with increasing to 4.066 2 hm2/cap in 2020,which would be 1.02 times than that of 2013,the ecological carrying capacity per capita remained unchanged. Considering the unstable development in Guangzhou, several policy recommendations is proposed to reduce eco-footprint,including optimizing the industrial structure,improving the efficiency of resource utilization,and changing the mode of economic development. Improving the ecological carrying capacity of resources is an effective way to promote environmental and socioeconomic sustainable development.

     

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