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。
Base on the investigation of capacity or production data of China＇s iron and steel enterprises, the current situation of CO2 emission and point sources distribution were analyzed. The amount of CO2 emission from the iron and steel industry were calculated to analyze the COz emission trends in 2000-2009. Finally, the CO2 emission point sources maps of 2000, 2004 and 2009 were drawn and the temporal and spatial distributing characteristics were analyzed. The results show that the COz emissions of Chinars steel industry has rapid growth in recent ysars, COz emissions in 2009 is 969.49Mr, 2.4 times in 2000. In 2009, the number of point sources is 312, mainly dis- tributed in Hebei, Jiangsu, Shandong, Liaoning, Shanxi, Shanghai, Guangdong and Hubei provinces, large-scale emission point sources increases every year, CO2 reduction will face great pressure.
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