土地利用项目的生态系统服务价值

Yongxiong Liu, Mingzhi Li, Jiacheng Zhao
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引用次数: 0

摘要

生态系统服务价值评价是中国生态文明建设中的一个热点问题。随着人类文明的进步,各类土地利用项目日益增多,不仅带来巨大的经济效益,而且深刻影响着区域土地利用格局和生态过程,对生态系统服务产生诸多影响。为了了解土地利用项目的实际经济成本,迫切需要对具体土地利用项目的生态系统服务成本进行评估。本文建立了土地利用项目生态服务价值综合评价的生态服务评价模型。该模型运用新兴理论、虚拟处置成本法和市场价格法,从水、土地、气、生物四个方面量化土地利用项目的生态系统服务成本。利用该模型,可以更快地估算土地利用项目的生态成本,得到项目的实际经济成本。以某火电厂为例,基于生态系统评价模型和现有模型计算系统服务年成本。通过比较两种模型的计算结果,表明了模型的可行性和有效性。
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The Value of a Land Use Project’s Ecosystem Services
The evaluation of ecosystem service value is a focus issue in the construction of ecological civilization in China. With the progress of human civilization, various types of land use projects are increasing day by day, which not only bring huge economic benefits, but also profoundly affect the regional land use pattern and ecological process, and have many influences on ecosystem services. In order to understand the real economic cost of land use projects, it is urgent to evaluate the ecosystem service cost of specific land use projects. In this paper, an ecological service evaluation model for comprehensive evaluation of land use project ecological service value is established. In this model, the emerging theory, virtual disposal cost method and market price method are applied to quantify the ecosystem service cost of land use project from four aspects of water, land, gas and biology. Using our model, we can estimate the ecological cost of a land use project more quickly and obtain the real economic cost of the project. Taking a thermal power plant as an example, the annual cost of the system service is calculated based on the ecosystem evaluation model and the existing model. By comparing the results of the two models, the feasibility and validity of the model are revealed.
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