School of Political Science and Public Administration, East China University of Political Science and Law, Shanghai 201620, China.
School of Public Administration, University of Electronic Science and Technology of China, Chengdu 611731, China.
Int J Environ Res Public Health. 2019 Apr 25;16(8):1474. doi: 10.3390/ijerph16081474.
Natural ecosystems benefit human lives via providing fundamental life-support services and goods upon which human civilization depends. However, as nature provides those for free, many people believe that they are of little or no value and they exploit the land greedily and unreasonably, which makes serious ecological degradation. Concerning this issue, we present the ecological services valuation model (ESVM) to measure the cost of environmental degradation of land use cost, which is an evaluation model of environmental degradation cost. Environmental degradation cost refer to the cost of deterioration or compromise of natural environment through natural processes or human activities, which consists of opportunity cost and environmental damage cost. Land area is an important variable in the ESVM. Based on Osmotic system, we put forward the effective land area, which combines the scale factor and the impact of external environment. What is more, the Cobb-Douglas production function is modified to establish the model. Finally, we propose the calculation formula of the economic cost of land use projects. Analysis of effectiveness and sensitivity prove that ESVM was a relatively stable model.
自然生态系统通过提供人类文明赖以依存的基本生命支持服务和货物使人类受益。然而，由于大自然无偿提供这些服务和货物，许多人认为它们几乎没有价值，于是肆无忌惮、毫无节制地掠夺土地，从而导致严重的生态退化。针对这一问题，我们提出了生态服务价值评估模型（ESVM）来衡量土地利用成本的环境退化成本，这是一种环境退化成本的评估模型。环境退化成本是指自然过程或人类活动导致自然环境恶化或受损的代价，包括机会成本和环境损害成本。土地面积是 ESVM 的一个重要变量。基于渗透系统，我们提出了有效土地面积的概念，它结合了规模因素和外部环境的影响。此外，我们对柯布-道格拉斯生产函数进行了修正，建立了模型。最后，我们提出了土地利用项目经济成本的计算公式。有效性和敏感性分析表明，ESVM 是一个相对稳定的模型。
