| 华北平原曲周县人为源氨排放清单及分布特征 |
| 摘要点击 2019 全文点击 1663 投稿时间：2022-02-20 修订日期：2022-05-06 |
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| 中文关键词 氨|排放清单|排放因子|大气污染|曲周县 |
| 英文关键词 ammonia|emission inventory|emission factor|air pollution|Quzhou county |
| 作者 | 单位 | E-mail | | 康嘉慧 | 中国农业大学资源与环境学院, 国家农业绿色发展研究院, 北京 100193
河北曲周农业绿色发展野外科学观测研究站, 邯郸 057250 | emmakjh@126.com | | 孟凡磊 | 中国农业大学资源与环境学院, 国家农业绿色发展研究院, 北京 100193
河北曲周农业绿色发展野外科学观测研究站, 邯郸 057250 | | | 刘学军 | 中国农业大学资源与环境学院, 国家农业绿色发展研究院, 北京 100193
河北曲周农业绿色发展野外科学观测研究站, 邯郸 057250 | | | 许稳 | 中国农业大学资源与环境学院, 国家农业绿色发展研究院, 北京 100193
河北曲周农业绿色发展野外科学观测研究站, 邯郸 057250 | wenxu@cau.edu.cn |
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| 中文摘要 |
| 以华北地区典型农业县曲周县为研究对象,通过收集本地人为源活动水平数据和相关氨排放因子,利用排放因子法建立2002~2019年人为源氨排放清单,并且采用当地实测的农田氮肥施用氨排放因子和县域农户生产调研数据优化2019年氨排放清单.结果表明,曲周县氨排放总量呈现"双峰"模式,从2002年的6682.9 t增加到2004年的7195.0 t,随后下降到2008年的5872.0 t;2015年增加到7010.5 t,随后逐步下降到2018年的5636.3 t.畜禽养殖(61%~75%)和氮肥施用(14%~28%)是主要氨排放源.2019年曲周县氨排放总量为6559.7 t,其中氮肥施用和畜禽养殖分别贡献28%和61%.小麦为氨排放最高的作物,占种植业氨排放总量的40%;蛋鸡为氨排放量最大的畜禽,贡献率为畜禽养殖的40%.在空间分布上呈现南高北低的趋势,南里岳乡和白寨乡为主要排放热区,全县平均氨排放强度达到13.5 t·km-2.在县域尺度上重点开展小麦种植和蛋鸡养殖氨减排将有助于华北平原大气氨污染治理. |
| 英文摘要 |
| 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 6682.9 t in 2002 to 7195.0 t in 2004 and then decreased to 5872.0 t in 2008. The second peak occurred in 2015 (7010.5 t) and then gradually decreased to 5636.3 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 6559.7 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. |
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