受煤炭开采影响,矿区内植被、土壤等主要碳汇要素受到不同程度的扰动,其受煤炭开采破坏导致的碳汇量变化计量是煤炭开采环境外部性的主要方面之一。文章根据大同矿区忻州窑矿土地利用类型、植被受扰动的生物量变化量、土壤受扰动的侵蚀变化量、土壤营养物质变化量、植被、土壤系统碳收支变化量等结果,借助环境经济学方法构建计量模型,将植被、土壤的物质扰动量转换为经济指标。并通过问卷调研,摸清矿区居民对环境影响的感受,以此作为生态补偿的谈判力,结合企业财务数据,测算生态补偿额度。研究结果表明,2001~2010年,大同矿区忻州窑矿因采煤导致的植被、土壤等碳汇要素价值损失为1447万元,生态补偿额度2.353亿元。
Affected by the impact of coal mining, main carbon sink factors such as vegetation and soil in mining area are disturbed in different degree, the carbon amount change measurement of them is one of the main coal mining environmental externalities According to the change of soil erosion, , land use type, vegetation biomass, nutrition in soil and carbon budget of vegetation-soil system caused by coal mining in Xinzhou coal mine, Datong mining area, based on the methods of environmental economics, econometric model were constructed, the material dis- turbance quantity of vegetation, soil were transferred into the economy index. And through the questionnaire sur- vey, feeling of local residents to influence of the environment were found out and was took as the bargaining power of ecological compensation, according to the financial data of the enterprise, ecological compensation amount was calculated. The results show that, from 2001 to 2010, the value loss of carbon sink factors such as vegetation and soil in Xinzhou, Datong mining area was14469058.76 Yuan, the ecological compensation was 235303739.55 Yuan.