省柴灶的生态效益估计方法

Approach to estimate the ecological benefit from improved firewood stoves

省柴灶在我国中西部生态建设中起了重要的作用。首先提出生态相关系数的概念,并用它来分析不同品种的林草对于生态的贡献大小。然后,利用环境经济学的影子工程法构造估计省柴灶生态效益的价值估计方法。最后,利用一个实际例子来说明如何使用此方法,并给出计算结果。文章还指出了这种估计方法存在的不确定性,以及其对于公共决策的影响。

Improved firewood stoves are playing an important role in the ecological rehabilita-tion in Western China.This paper formulates the concept of ecological correlation index which is applied to identify the contribution of different fuelwood or straws and stalks saved from improved firewood stoves.Shadow engineering approach is applied to value the benefit of ecological impact.The approached are applied to a real household case in rural area of western China.