2008-2018年山东省人为源氨排放清单研究

Anthropogenic ammonia emission inventory in Shandong Province from 2008 to 2018

为探究山东省氨排放特征,基于统计数据,运用排放因子法建立了山东省全省及各地级市2008-2018年的人为源氨排放清单,重点研究了山东省人为源氨排放的总量、排放源分布、空间分布与变化趋势。结果表明,2018年山东省人为源氨排放总量为75.823万t,平均排放强度为4.80 t/km^(2)。畜禽养殖是山东省最大的人为源,占全省人为源氨排放总量的67.2%。畜禽养殖排放中最大的源头为猪和牛,两者合计约占畜禽养殖氨排放量的98%。氮肥施用是第二大人为源,占2018年全省人为源氨排放量的17.4%。德州市、菏泽市、潍坊市和临沂市依次是山东省人为源氨排放量最大的4个地级市,氨排放量均超过7万t,共占山东省人为源氨排放总量的45.4%。德州市和菏泽市是排放强度最大的两个地级市,山东省西南部及西北部是人为源氨排放强度较大的区域。11年间,山东省人为源氨排放量总体呈先升高后降低的趋势,畜禽养殖氨排放量的变化是排放总量变化的主导因素。

In order to explore the characteristics of ammonia emissions in Shandong Province,based on statistical data,the emission factor method was used to establish a list of anthropogenic ammonia emissions from 2008 to 2018 in overall and cities of Shandong Province.The spatial distribution,emission source distribution and changing trend of anthropogenic ammonia emission in Shandong Province were studied.The results showed that the total anthropogenic ammonia emission in Shandong Province was 7.5823×10^(5) t,and the average ammonia emission intensity was 4.80 t/km^(2).Livestock and poultry breeding was the largest human resource in Shandong Province,accounting for 67.2%of the total anthropogenic ammonia emissions.In the livestock and poultry breeding,the major contributors were pigs and cattles,which accounted for about 98%of livestock and poultry breeding emissions.Nitrogen application was the second largest source,accounting for 17.4%of the province’s total emissions in 2018.All over the city,the ammonia emission of Dezhou,Heze,Weifang and Linyi were higher than those of other cities,and the ammonia emissions exceeded 7×10^(4) t,accounting for 45.4%of the total anthropogenic ammonia emissions.Dezhou and Heze were the cities with the largest emission intensity,while the southeast and northwest of Shandong Province were the regions with the largest ammonia emission intensity.During the past 11 years,the anthropogenic ammonia emissions in Shandong Province showed a trend of growth first and then decreased,and the change of livestock and poultry breeding emissions was the leading factor in the change of total emissions.