北京西部山区1999年生态足迹计算与可持续性分析

在剖析生态足迹分析法的理论基础和计算模型的基础上,计算北京西部山区门头沟1999年的人均生态足迹和生态容量。根据人均生态足迹和生态容量对比分析,得出1999年门头沟区处于生态赤字状态。经剖析造成生态赤字的原因,指出了该区在加强生态环境建设和养护,增加生态容量等方面应采取的措施与政策。提出以生态足迹作为山区生态可持续性评价指标的优点及当前存在的缺点。

Calculation of ecological footprint and analysis of sustainability for Beijing western mountainous areas in 1999

The per capita ecological footprint and biological capacity of Mentougou district in 1999 were calculated on the basis of the theory and model of ecological footprint. According to the calculation model of EF, it depends on the consumption level and the population, so different consumption levels were considered in this study. The population of Mentougou district was classified into two groups: rural residents and urban residents, and their ecological footprints were measured separately. Especially the footprint of the consumption of water and the drainage of sewage were computed for urban residents. On the other hand, the biological production land areas were obtained from the TM remote sensing image in 1999, then the per capita biological capacity was counted on them. Comparing the ecological footprint with biological capacity, Mentougou district was in ecological deficit, which meant it was unsustainable. On the basis of the analysis of different biological land, the reasons for the deficit were pointed out, and the suggestions, which strengthened the construction and maintenance of the local environment, were put forward to decrease the ecological deficit. According to the research on Mentougou, the advantages and disadvantages of ecological footprint for evaluating ecological sustainability of mountainous areas were concluded.