大中型城市快速发展进程中CO_2收支变化研究——以郑州市1999-2008年为例

Research on CO_2 Emission and Sequestration in Rapidly Developing Large & Medium Cities:A Case Study of Zhengzhou City from 1999 to 2008

我国目前处于城市快速发展进程中,掌握这一过程中的CO2收支动态对于制定相应减缓策略进而增强城市竞争力有重要意义。本文以郑州为例,对其1999到2008年间的CO2排放量和吸收量进行了分析和计算,结果显示市区CO2净排放量平均以每年10%的幅度增长2,008年市区CO2总排放中有85%以上来自于化石燃料,2006年以来交通运输业已取代发电业成为市区内最大的CO2排放源。在CO2排放量不断攀升的情形下,创建森林生态城的举措对减少CO2净排放量起到了重要作用。最后,针对郑州资源与CO2排放特点提出减排增汇的对策。

China is in the process of cities developing rapidly.Research the changing of CO2 emission and sequestration in this process is meaningful for adopt appropriate mitigation strategies to reduce CO2 emission and enhance urban competitive power.In this paper,Zhengzhou city as example,its CO2 emission and sequestration from 19989 to 2008 was analyzed and calculated,the results showed that the annual net CO2 emission in urban area was increased with average ratio of 10% every year,more than 85% of the total CO2 emission came from fossil fuels in 2008,and the transport has replaced the electricity generation industry became the largest source of CO2 emission from 2006.Though total CO2 emission kept rising,the initiation of build forest eco-city played important role in reducing net CO2 emission.Finally,the paper put forward suggestions on how to cut down CO2 emission and increase carbon pools on the basis of CO2 emission characteristic and natural resources in Zhengzhou area.