基于净初级生产力模型的福州市能源生态足迹和生态承载力研究

Research on Fuzhou Energy Ecological Footprint and Ecological Carrying Capacity Based on Net Primary Productivity Model

生态足迹是研究区域可持续状况的常用方法。分别采用传统生态足迹模型和加入净初级生产力改进的模型,计算福州市2011-2017年化石能源地生态足迹,并对2组结果进行了比较分析。同时,采用净初级生产力改进模型计算福州市2011-2017年的化石能源地生态承载力和生态盈余。结果表明,2011-2017年,传统模型计算的福州市人均化石能源地生态足迹由1.281 hm^2减少到0.978 hm^2,净初级生产力模型计算的人均化石能源地生态足迹由0.456 hm^2减少到0.408 hm^2。2种模型的计算结果整体变化趋势较为一致,但年变化速率和具体构成份额都存在差别。福州市2011-2017年的人均化石能源地生态承载力呈下降趋势,从2.873 hm^2减少到2.681 hm^2。在人均化石能源地生态承载力的构成中,水域近海和林地占85%以上。福州市化石能源地的生态盈余在逐渐减少,区域可持续状况不乐观。

Ecological footprint was a common method to study regional sustainable development.By applying the traditional model and the net primary productivity(NPP-EEF)model,the ecological footprint of fossil energy land of Fuzhou City from 2011 to 2017 were calculated,and the results between the two models were compared and analyzed.At the same time,the NPP-EEF model was used to calculate the ecological carrying capacity and ecological surplus of fossil energy sources in Fuzhou City from 2011 to 2017.The results showed that,from 2011-2017,the ecological footprint of fossil energy land per capita decreased from 1.281 hm^2 to 0.978 hm^2 by the traditional model,while the ecological footprint of fossil energy land per capita decreased from 0.456 hm^2 to 0.408 hm^2 by NPP-EEF model.The results of the two models were consistent in the overall trend of change,but the annual rate of change and the proportion of composition were different.During 2011 to 2017,the ecological carrying capacity of fossil energy land decreased from 2.873 hm^2 to 2.681 hm^2.In the composition of the ecological carrying capacity of per capita fossil energy sources,the offshore waters and forest land account for more than 85%.The ecological surplus of fossil energy land of Fuzhou was gradually decreasing,and the regional sustainability is not optimistic.