Author(s)

Siran Lee, Chen Qi, Chunyan Wang

Corresponding Author

Siran Lee

ABSTRACT

Land use projects will affect ecosystem services. Economic costs should include the negative effects of land use. And we should assess the environmental costs. We set up a cost model of environmental degradation. In the basic model, we mainly study the two main functions of the ecosystem. These functions are material supply services and air purification services (including dust retention value, water conservation and soil conservation, maintenance of soil fertility, etc),and we found the value of functional losses. We use the intermediate materials transformation method and the market value method to transform the cost of environmental degradation in land projects into monetary value, and then calculate the costs of environmental degradation through the corresponding products or service prices. Through comparative analysis, we further optimize the basic model, and finally stabilize the standard deviation with the actual case at 0.1 ≤ 0.5. In the optimization model, we put forward the indirect loss of ecological service function on the basis of the basic model, and add the loss of air pollution to human health and regional agricultural products. At the same time, we also take into account the changes in the soil over time so that our model is more accurate.

KEYWORDS

Ecosystem service, environmental cost, environmental degradation, ecological protection, ecological system, system protection planning