基于LCA理论的环境影响社会支付意愿研究

Study on social WTP for environmental impacts based on the LCA theory

为了明确各类环境影响的权重,基于生命周期评价(LCA)和支付意愿(WTP)理论,探讨并建立了用社会支付意愿来衡量环境影响程度的环境影响评价模型和权重确定方法,赋予了环境影响评价的经济涵义.在环境税相关理论基础之上,以北京地区为例,综合考虑污染物影响能力以及年排放总量,建立了可实用的区域环境影响评价模型,并得到了各类环境影响因素的具体权重值.考察了3种型号水泥的环境影响的社会支付意愿.

In order to determine the weights of each type of environmental impact aspect based on the theories of Life Cycle Assessment （LCA） and Willingness -to -pay （WTP）, this paper attempts to build an environmental impact assessment model in which the environmental impact is measured by social WTP for environmental damage. This model is illustrated through the consideration of the “green tax,” the impact potential and the total emission volumes of pollutants in the Beijing area. The detail weight value of each type of environmental impact aspect is then derived. Finally, this model is applied to assess the environmental impacts of three types of cement.