化石能源地生态承载力研究

Ecological Carrying Capacity of Fossil Energy Land

针对当前研究中忽略化石能源地生态承载力的不足,从土地碳吸收功能的角度将生态足迹法与净初级生产力相结合,根据构建的化石能源地生态承载力模型,对东北地区进行了实证研究。结果表明,2004-2008年,东北地区化石能源地生态承载力的区域性差异显著,辽宁最低、吉林居中、黑龙江最高;三省人均化石能源地生态承载力均呈缓慢下降趋势,降幅由大到小依次为吉林（3.52%）、辽宁（1.75%）、黑龙江（0.10%）;三省人均化石能源地生态承载力的总构成中,耕地、建设用地比例有所上升,林地、草地、水域、低生产力地、远海比例有所下降,其中林地是构成主体,占到了58.25%~58.40%。研究表明,化石能源地生态承载力模型的计算结果具有较高的精确度,符合三省资源禀赋的实际特征,有助于更全面合理地评价能源消费的可持续性,一定程度上是对生态足迹法的补充和完善。

To overcome the defect of current studies of ignoring ecological carrying capacity of fossil energy land, a model was established by combining ecological footprint analysis and net primary productivity from standpoint of land function of carbon sequestration. Taking northeast China as an empirical study, results showed that during 2004 and 2008, ecological carrying capacity of fossil energy land of Liaoning Province, Jilin Province and Heilongjiang Province were low, medium and high respectively, showing significant regional difference, and the decreasing proportions of Province Jilin, Liaoning and Heilongjiang were 3.52%, 1.75% and 0.10% respectively. In the composition of total ecological carrying capacity of fossil energy land per capita, component percentages of arable land and built-up land increased, while those of forest, grazing land, water area, less productive land and open ocean decreased. Forest was main part of ecological carrying capacity of fossil energy land, accounting for 58.25%-58.40%. It was concluded that the new model able to accord with real situation of regional resource endowment with high precision can evaluate the sustainability of energy consumption more roundly and improve ecological footprint theory to a certain extent.