区域碳足迹动态分析及碳排放等级评估——以四川省为例

Dynamic Analysis of Region Carbon Footprint in Sichuan Province

通过利用联合国政府间气候变化专门委员会（Intergovemmental Panel on Climate Change，IPCC）方法，对2000年-2011年四川省化石能源消费，生物质能利用和特殊工业生产过程所产生的碳足迹和各类植被的固碳能力进行了动态分析，并采用碳排放指数和碳压力指数对四川省的碳安全等级进行评估。结果表明，从2000年至2011年，四川省碳足迹逐年增加，年均增加23．30％。全省化石能源的碳排放占碳排放总量的48．60％～65．31％，所占比例平均高达58％，水泥工业所占比例为26％左右，而生物质能利用所占比例约为16％。碳固碳量年均增长率为3．5％，增长速度较慢；全省人均碳排放量增幅为369．49％，年平均提高24．71％，全省万元GDP的碳排放强度先增加后降低。四川省碳安全等级持续2000年为Ib等级，2001—2009年为IC等级，2010—2011年为中等碳排放等级11a，碳减排任重而道远。

Based on the reference method IPCC, the research estimates and analyzes the consumption of fossil energy, biomass utilization, and special industrial production of different types of carbon footprint and carbon safety by carbon emissions index and carbon pressure exponent, in Sichuan Province from 2000 to 2011. The results were shown that, the carbon footprint increased with annually increase rate of 23.30%. In a breakdown of carbon emissions, the carbon emissions of fossil energy, biomass utilization, and special industrial production were accounted for 58%, 26%and 16%, respectively. Vegetation carbon sequestration increased with annually increase rate of 3.5%. Carbon footprint per capita increased, increased by 24.71% per year, carbon footprint per unit area increased, and the carbon emission state in Sichuan Province has increased continually from a low level （ Ⅰ c） to a middle level （ Ⅱ a）.