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水泥工业是温室气体二氧化碳(CO2)的主要排放源,利用碳排放数学模型计算2001-2010年我国水泥工业碳的排放量,分析碳排放量的变化特点和发展趋势。结果表明:水泥工业碳排放总量逐年增长,与水泥产量和排放强度呈线性关系。“十一五”期间单位产品碳排放强度由0.69 t/t下降到0.65 t/t。万元GDP碳排放量2008年达到最低值为0.295 1 t,平均每年万元GDP碳排放量下降2.85%。水泥工业十年间实施节能降耗、资源循环利用、提高经济效益等措施,对于减少碳排放具有明显效果。
The cement industry is the main source of carbon dioxide (CO2), the greenhouse gas. Using the mathematical model of carbon emissions, we calculate the carbon emissions of China’s cement industry from 2001 to 2010 and analyze the changing characteristics and development trend of carbon emissions. The results show that the total amount of carbon emissions in cement industry increases year by year and has a linear relationship with cement production and emission intensity. During the “Eleventh Five-Year” period, the carbon emission intensity per unit product dropped from 0.69 t / t to 0.65 t / t. In 2008, the carbon emission per 10,000 yuan of GDP reached the lowest value of 0.295 1 t, with an average of 2.85% of carbon emissions per 10,000 yuan of GDP per year. Cement industry ten years to implement energy saving, recycling of resources, improve economic efficiency and other measures for reducing carbon emissions have a significant effect.