影响生态足迹模型计算结果的因素分析——以云南省为例

Factors Affect the Ecological Footprint Calculating Results:Taking Yunnan Province as an Example

分析对生态足迹模型计算结果会产生影响的各类因素对计算结果的稳定与可靠有重要意义。文章将各类影响因素分为两个大类四个小类,并测算了这些因素对最终计算结果的影响程度。以云南省2009年的生态足迹为例,结果表明:统计数据中土地面积数值的突然变化,均衡因子、产量因子的选择对计算结果影响最大,分别达到19.3%和16.46%;计算中缺失项目对计算结果的影响约为3.2%;除水产品产量数值外,其它计算参数变化对计算结果造成的影响不大。因此,建立生态足迹研究合作机构,从而统一数据收集整理过程、规范计算参数、计算方法,这是确保生态足迹计算结果有效的最佳措施。

To explore the factors that affect the ecological practical significance. In this paper, after comparing with the footprint calculating results has theoretical and different effect by using different settings, we found that the sudden changing of raw data item values, especially the land area, equivalence factors, yield fac- tors used in the calculation and the lack of some items which were included in the ecological footprint model would result in an error about 19.3%, 16.46% and 3.2% respectively in 2009. So the best way to get a high quality result is to establish a cooperative institution for the purpose of common raw data, real parameters and the same methods used in the calculating of ecological footprint.