优化中国膳食结构以减少氨排放的研究

Study on Optimizing Chinese Dietary Structure to Reduce Ammonia Emissions

氨(NH_(3))作为大气中的碱性气体,对二次无机气溶胶的生成有着重要的影响作用。氨排放的最主要来源是农业源,而农业生产与膳食结构有着密切的联系。本研究利用已有的农业氨排放清单估算中国居民膳食指南所推荐的膳食结构人均NH_(3)排放量以及在地中海饮食模式下的人均NH_(3)排放量。结果表明,在中国居民膳食指南所推荐的饮食模式下,每人每月在饮食方面将导致12.927 kg的NH_(3)排放量;而在地中海饮食模式下,每人每月在饮食方面将导致0.258 kg的NH_(3)排放量。地中海饮食模式所导致的NH_(3)排放量远远低于中国居民膳食指南推荐的膳食结构所导致的氨排放量。根据两种膳食结构导致的氨排放量的估算与分析,优化中国的膳食结构以减小NH_(3)排放量。

Ammonia(NH_(3)),as an alkaline gas in the atmosphere,plays an important role in the formation of secondary inorganic aerosols.Agricultural sources are the main source of ammonia emissions,and agricultural production is closely related to dietary structure.In this study,the existing agricultural ammonia emission inventory was used to estimate the per capita NH_(3) emissions in the diet recommended by dietary guidelines and the per capita NH_(3) emissions in the Mediterranean diet.The results showed that the dietary pattern recommended by the dietary guidelines for Chinese residents would result in 12.927 kg of NH_(3) emissions per person per month;the Mediterranean diet,on the other hand,resulted in 0.258 kg of NH_(3) per person per month.NH_(3) emissions from the Mediterranean diet are much lower than those from the dietary guidelines for Chinese residents.According to the estimation of ammonia emissions caused by the two dietary structures,this paper optimizes China’s dietary structure to reduce NH_(3) emissions.