Emission Inventory and Distribution Characteristics of Anthropogenic Ammonia in Quzhou County, North China Plain

被引：0
|
作者：
Kang J.-H. [1 ,2 ]
Meng F.-L. [1 ,2 ]
Liu X.-J. [1 ,2 ]
Xu W. [1 ,2 ]
机构：
[1] National Academy of Agricultural Green Development, College of Resources and Environment, China Agricultural University, Beijing
[2] Hebei Quzhou Agricultural Green Development Field Observation and Research Station, Handan
来源：
Huanjing Kexue/Environmental Science | 2023年 / 44卷 / 01期
关键词：
air pollution; ammonia; emission factor; emission inventory; Quzhou county;
D O I：
10.13227/j.hjkx.202202139
中图分类号：
学科分类号：
摘要：
Quzhou county is a county in the North China Plain with intensive agricultural production. Based on data collected on the local anthropogenic activity level and the ammonia (NH3 ) emission factor, the anthropogenic NH3 emission inventory in Quzhou county from 2002 to 2019 was established using the emission factor method, and the NH3 emission inventory in 2019 was optimized using the locally measured nitrogen (N) fertilizer application NH3 emission factor and activity data from farmer surveys. We found that the total NH3 emission in Quzhou county showed a bimodal pattern: it increased from 6 682. 9 t in 2002 to 7 195. 0 t in 2004 and then decreased to 5 872. 0 t in 2008. The second peak occurred in 2015 (7 010. 5 t) and then gradually decreased to 5 636. 3 t in 2018. Livestock husbandry (61%-75%) and N fertilizer application (14%-28%) were the primary NH3 emission sources. In 2019, the total NH3 emission in Quzhou county was 6 559. 7 t, of which N fertilizer application and livestock husbandry contributed 28% and 61%, respectively. Wheat planting contributed the highest NH3 emissions, accounting for 40% of the total NH3 emission of crop production. Laying hens had the largest NH3 emission in livestock production, contributing 40% of the total emissions. NH3 emissions were higher in the south than those in the north at the county level, with the average NH3 emission intensity reaching 13. 5 t.km- 2 . Nanliyue and Baizhai towns were hot spots of NH3 emission. Taken together NH3 emission reduction in wheat production and layer hen breeding will help to control atmospheric NH3 pollution in the North China Plain. © 2023 Science Press. All rights reserved.
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页码：94 / 103
页数：9
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