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Compilation of an Embodied CO2 Emission Inventory for China Using 135-Sector Input-Output Tables

机译：利用135个行业投入产出表编制中国有代表性的CO 2 排放量清单

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A high-quality carbon dioxide (CO2) inventory is the cornerstone of climate change mitigation. Most of the previously reported embodied CO2 inventories in China have no more than 42 sectors, and this limitation may introduce apparent inaccuracy into the analysis at the sector level. To improve the quality of input-output (IO)-based CO2 inventories for China, we propose a practical energy allocation approach to link the energy statistics to the 135-sector IO tables for China and compiled a detailed embodied CO2 intensity and inventory for 2007 using a single-region IO model. Interpretation of embodied CO2 intensities by fuel category, direct requirement, and total requirement in the sectors were conducted to identify, from different perspectives, the significant contributors. The total embodied CO2 emissions in 2007 was estimated to be 7.1 Gt and was separated into the industrial sector and final demand sector. Although the total CO2 estimations by the 42-sector and 135-sector analyses are equivalent, the allocations in certain groups of sectors differ significantly. Our compilation methodologies address indirect environmental impacts from industrial sectors, including the public utility and tertiary sectors. This method of interpretation could be utilized for better communication with stakeholders.
机译：高质量的二氧化碳（CO 2 ）库存是减缓气候变化的基石。在中国，以前报告的大多数体现在CO 2 清单中的部门最多不超过42个，而这一限制可能会在部门级别的分析中引入明显的不准确性。为了提高中国基于投入产出（IO）的CO 2 清单的质量，我们提出了一种实用的能源分配方法，将能源统计数据与中国135个行业的IO表关联起来，并编制了一份使用单区域IO模型详细显示了2007年的CO 2 强度和清单。根据燃料类别，直接需求和部门总需求对具体的CO 2 强度进行了解释，以从不同的角度确定重要的贡献者。据估计，2007年包含的CO 2 总排放量为7.1 Gt，分为工业部门和最终需求部门。尽管通过42个部门和135个部门进行的总CO 2 估计是等效的，但某些部门组中的分配存在显着差异。我们的编制方法论解决了工业部门（包括公用事业和第三部门）的间接环境影响。这种解释方法可用于与利益相关者更好的沟通。

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