Regional Difference Analysis on China's Carbon Dioxide Emission Embodied in Exports

As a big country of exports trade, China's carbon dioxide emission embodied in exports is considerable, and its regional difference is significant. The paper chooses nineteen provinces (municipality city and autonomous region) to evaluate their carbon dioxide emission embodied in exports using input-output analysis. Results show that regional difference of carbon dioxide emission embodied in exports is significant, and its basic character is carbon dioxide emission embodied in exports of east is higher than west. The paper chooses Liaoning and Ningxia as cases, using structural decomposition analysis model to decompose their difference of carbon dioxide emission embodied in exports. The difference of carbon dioxide emission embodied in exports is decomposed into four parts: direct carbon dioxide intensity difference, intermediate technology difference, exports volume and structure difference. Results indicate that their contribution value is-589.60 ten thousand ton,-316.04 ten thousand ton,5947.99 ten thousand ton and -344.94 ten thousand ton respectively. So carbon dioxide emission embodied in exports of Liaoning is more than that of Ningxia because of their exports volume difference. Direct carbon dioxide intensity, intermediate technology difference and exports structure effect are factors to promote carbon dioxide emission embodied in exports of Liaoning is less than Ningxia, but their effect is smaller than exports volume effect. So the main reason of China's carbon dioxide emission regional difference is exports volume.