| With the development of economy, more and more carbon emissions result in increasingly serious environmental problem and all countries in the world have begun to cut emissions. As a country that produces a lot of carbon emissions China’s task of the emission reduction is very tough. Under this background, the residents’ food consumption occupies an important proportion in residents’daily consumption, so the residents’ diet energy consumption and carbon emissions produced by food consumption should not be ignored.Lanzhou is the regional central city in northwest China with large and centralized population. It is helpful to understand the degree of residents’diet’s impact on the environment in western central city by the study of carbon footprint of residents’ food consumer in Lanzhou. At the same time this study can provide reference for related research in other areas.On the base of the study of the carbon footprint both at home and abroad, this paper combs the related theory and then calculates and analyses the data of residents’food consumption during2004to2004in Lanzhou based on life cycle analysis methods. Calculation results showed that the carbon footprint of residents’ food consumption in Lanzhou fluctuates during2004to2011. According to the calculation results of carbon footprint based on life-cycle process, process of food remachining arises the most of carbon emissions, accounting for52%of the total. The second largest carbon emissions are produced by Chemical fertilizer, accounting for35%of the total. Other processes produce relatively smaller carbon emission. According to the calculation results of carbon footprint based on category of food consumption, foodgrain arises the most of carbon emissions, accounting for47%of the total. This article also compares Lanzhou’s carbon footprint of food consumption to the national average level and Beijing’s average level. Finally this paper provides some suggestions for reducing residents’ food consumption carbon footprint. |
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