生态资产评估静态部分平衡模型的分析与改进

静态部分平衡模型是目前生态资产价值评估中可操作性比较强的一种评估模型。由于生态资产评估领域中还存在很多争议,论文从对生态资产评估的目的、特点、模型假设、方法和途径等方面入手,对生态资产价值评估静态部分平衡模型进行了分析,指出传统模型中存在的一些缺陷,并尝试对模型进行改进。选择黄河皇甫川流域五分地沟小流域作为研究区,依据传统模型和改进模型分别对研究区进行生态资产评估,结果表明,改进模型估算的流域生态资产总价值比传统模型的计算结果高出约1/3,其中林地和草地的单位面积价值上升,灌木林的单位面积价值则下降。

Analysis and discussion of the static partial equilibrium model for the valuation of the ecosystem capital

The static partial equilibrium model is a kind of valuation model on ecosystem capital with good maneuverability.As there is still dispute in the field of the valuation of ecosystem cap-ital,this article analyzed the static partial equilibrium model in light of the purpose,characteris-tics,theoretical assumptions,approaches and methods of the job.Based on the analysis,several limitations of the traditional model were pointed out and an advanced model was proposed.Then we selected a watershed in Huangfuchuan valley on the Yellow River as our research area to compare the difference of the valuation results yielded from the traditional model and the ad-vanced model.We found that woodland and grassland would take a higher price in the advanced model but shrubbery would take a lower,and the total valuation yielded from the advanced model would be higher than that of the traditional model by about 1/3.