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本文通过梳理分析相关重要文献,统计碳排放生命周期系统边界并绘出完整周期的系统图,从计算方法、数据来源、数据特点、计算工作量方面比较生命周期清单分析法(基于过程法、投入产出法、混合分析法)和碳排放系数法共4种碳排放计算方法。研究表明生命周期清单分析法主要用于宏观国民经济核算,其中常用基于过程法但准确性较低、工作量较大,碳排放系数法在具体建筑物碳排放计算上应用较广泛,工作量小但受地域影响大、准确性低。
By combing and analyzing relevant important documents, the paper calculates the system boundary of the lifecycle system of carbon emission and draws a complete cycle system diagram, and compares the life cycle inventory analysis method (based on process method, input method, data source, data calculation and workload) Output method, mixed analytic method) and the carbon emission coefficient method of a total of four kinds of carbon emissions calculation method. The research shows that the LCA method is mainly used for macroeconomic national accounts. Commonly based on the process method, but with less accuracy and heavy workload, the carbon emission factor method is widely used in the calculation of specific buildings carbon emissions, the workload is small But affected by the region, low accuracy.