工业化高速发展时期广州市的碳收支变化初步研究

Variation of the carbon budget in Guangzhou during its rapid industrialization course

为了了解我国发达城市在工业化高速发展进程中CO2的收支状况,以广州市为研究对象,首次估算了其从1990年到2003年每年的净固碳量和释碳量,并分析了其变化趋势。研究结果表明,这13年间广州市的净固碳量与总释碳量年均增长率分别为0.93%与7.16%;到2003年,其净固碳量为2.57Mt,而其总释碳量已达到22.79Mt,其中约70%的释碳量源于化石燃料的燃烧。工业化高速发展时期也是释碳量日益高于净固碳量的时期,两者之间差距的逐步加大,已经使得广州市目前的碳收支状况发展到了极不平衡的程度。而逐年递增的人口和以化石燃料为主的能源消费是造成广州市碳收支严重失衡的主要原因。

In order to realize the carbon budget status of the developed cities in our country during its rapid industrialization course, the net amount of carbon storage and emission of Guangzhou during the period from year 1990 to 2003 are tentatively estimated for the first time. Their variation tendencies were analyzed. The results show that the average growth rate of the net amount of carbon storage and the total amount of carbon emission are estimated to be 0.93% and 7.16% respectively during these 13 years. By 2003, the net amount of carbon storage reached 2.57 Mt and the total amount of carbon emission became 22.79 Mt, among which about 70% of the carbon emission came from fossil fuel burning. The estimate indicates that the carbon emission is higher than the carbon storage continually during the rapid industrialization course. It can be seen that the condition of carbon storage and emission in Guangzhou is extremely unbalanced, and worse of all, the deficit is increasing day by day. The results also explain that the main reasons why led to this unbalance are the rapid growth of population and energy consumption mainly composed of fossil fuel.