基于“城市公顷”模型的均衡因子与产量因子的计算——以池州市为例

为更准确地核算小尺度生态足迹,在“全球公顷”和“国家公顷”的基础上建立了“城市公顷”模型,并阐述了在“城市公顷”基础上均衡因子和产量因子的计算方法。通过对池州市市域范围内各类土地的均衡及产量因子的测算,结果表明：计算出的因子数值与“全球公顷”和“国家公顷”模型下的数值存在较大差异,但更能准确客观的表达池州市的实际情况,存在的差异是合理的;通过比较,“城市公顷”模型方法更适合城市级的生态足迹以及生态承载力的核算,相对误差较小。

Calculation of Equivalence Factor and Yield Factor Based on City Hectare Model

In order to calculate the ecological footprint in the small-scale more accurately, based on the models of global hectare and national hectare, the city hectare model of city hectare was established, and then described in the method of calculation of the equilibrium factor and yield factor on the basis of the city hectare model. Based on this model, it takes the Chizhou city as an example, to calculate the equivalence factor and yield fac- tor of the city. The results showed that：although there is a diffidence between the calculation results and the global and national factors, but the city hectare model is more accurate and objective expression of the actual situation of the Chizhou city, the city hectare model is more suitable for the calculation of the city-level ecologi- cal footprint and ecosystem carrying capacity.