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在对中国钢铁企业的产能、产量数据进行调研的基础上,计算了单个钢铁企业及整个行业CO2排放量,分析了中国钢铁行业的CO2排放现状及2000～2009年间的变化情况。在此基础上绘制了中国钢铁行业2000、2004和2009年的排放点源空间分布图,分析了排放点源随时间的变化趋势及空间分布特征。结果表明,近年来,中国钢铁行业CO2排放量呈现快速增长,2009年达到969.49Mt,是2000年的2.4倍。2009年,中国钢铁行业CO2排放点源数量312个,主要集中于河北、江苏、山东、辽宁、山西、上海、广东、湖北等省市,且大规模排放源逐年增多,CO2减排压力巨大。
Based on the investigation of the production capacity and output data of Chinese steel enterprises, the CO2 emissions of individual steel enterprises and the whole industry were calculated. The status of CO2 emissions in China’s steel industry and the changes between 2000 and 2009 were analyzed. Based on this, the spatial distribution of point sources in China’s steel industry was plotted in 2000, 2004 and 2009, and the trend and spatial distribution of point sources were analyzed. The results show that in recent years, China’s steel industry has seen rapid growth in CO2 emissions, reaching 969.49 Mt in 2009, 2.4 times that of 2000. In 2009, there were 312 point sources of CO2 emissions in the steel industry in China, mainly in Hebei, Jiangsu, Shandong, Liaoning, Shanxi, Shanghai, Guangdong and Hubei provinces. Large-scale emission sources increased year by year with huge pressure on CO2 emission reduction.