利用我国能源统计数据,对我国及各省区的CO2排放总量、排放强度、人均排放量和排放密度进行了计算.通过分析发现我国CO2排放具有较为明显的东西部差异,总体表现为东部发达省区排放总量大、排放强度低、人均排放多、排放密度高的特点,而中西部尤其是西部地区则表现出相反的特征.在分析我国CO2排放区域特征的基础上,分析出现以上地域差异的主要原因,并针对区域减排行动可能存在的问题进行了探讨,提出以省区为单位,降低排放强度可以取得实际的、可跟踪的减排效果,但需要考虑到全国各省区在功能定位、减排成本、资源环境条件等方面的差别,以及建立基于技术与资金合作的联合减排机制的可行性和障碍等因素.
The total CO2 emission, emission intensity, emission per capita,and emission density of China and its individual provinces were calculated on the basis of the datasets of Chinese energy consumption and IPCC reference approach for carbon dioxide assessment. The CO2 emission between the east and west of China is very different. The eastern developed regions in China are more in total emission, lower in emission intensity, higher in emission per capita, and higher in emission density than the western less-developed regions. The differences are due to different economic levels, industrial structures, energy components, technology levels, populations, and areas of the individual provinces. In the sense of emission strategy,it is a good choice to take the province as a single unit of emission to think about emission reduction measures. But it is important to consider the differences of the individual provinces in national function position, reduction cost and in conditions of resource and environment to evaluate the feasibility and obstacle of a new cooperative reduction mechanism through the exchange of technology, fund and reduction among the individual provinces.