Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-339-2018 |
Agricultural ammonia emissions in China: reconciling bottom-up and top-down estimates | |
Zhang, Lin1; Chen, Youfan1; Zhao, Yuanhong1; Henze, Daven K.2; Zhu, Liye3; Song, Yu4; Paulot, Fabien5; Liu, Xuejun6; Pan, Yuepeng7; Lin, Yi8; Huang, Binxiang9 | |
2018-01-12 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:1页码:339-355 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Current estimates of agricultural ammonia (NH3) emissions in China differ by more than a factor of 2, hindering our understanding of their environmental consequences. Here we apply both bottom-up statistical and top-down inversion methods to quantify NH3 emissions from agriculture in China for the year 2008. We first assimilate satellite observations of NH3 column concentration from the Tropospheric Emission Spectrometer (TES) using the GEOS-Chem adjoint model to optimize Chinese anthropogenic NH3 emissions at the 1/2 degrees x 2/3 degrees horizontal resolution for March-October 2008. Optimized emissions show a strong summer peak, with emissions about 50% higher in summer than spring and fall, which is underestimated in current bottom-up NH3 emission estimates. To reconcile the latter with the top-down results, we revisit the processes of agricultural NH3 emissions and develop an improved bottom-up inventory of Chinese NH3 emissions from fertilizer application and livestock waste at the 1/2 degrees x 2/3 degrees resolution. Our bottom-up emission inventory includes more detailed information on crop-specific fertilizer application practices and better accounts for meteorological modulation of NH3 emission factors in China. We find that annual anthropogenic NH3 emissions are 11.7 Tg for 2008, with 5.05 Tg from fertilizer application and 5.31 Tg from livestock waste. The two sources together account for 88% of total anthropogenic NH3 emissions in China. Our bottom-up emission estimates also show a distinct seasonality peaking in summer, consistent with top-down results from the satellite-based inversion. Further evaluations using surface network measurements show that the model driven by our bottom-up emissions reproduces the observed spatial and seasonal variations of NH3 gas concentrations and ammonium (NH4+) wet deposition fluxes over China well, providing additional credibility to the improvements we have made to our agricultural NH3 emission inventory. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000419987100001 |
WOS关键词 | ATMOSPHERIC NITROGEN DEPOSITION ; PARTICULATE MATTER POLLUTION ; UNITED-STATES ; DRY DEPOSITION ; SATELLITE MEASUREMENTS ; VEHICLE EMISSIONS ; WET DEPOSITION ; NH3 EMISSIONS ; BLACK CARBON ; CMAQ MODEL |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/27275 |
专题 | 地球科学 |
作者单位 | 1.Peking Univ, Sch Phys, Dept Atmospher & Ocean Sci, Lab Climate & Ocean Atmosphere Studies, Beijing 100871, Peoples R China; 2.Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA; 3.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA; 4.Peking Univ, Dept Environm Sci, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China; 5.Princeton Univ, Program Atmospher & Ocean Sci, Princeton, NJ 08544 USA; 6.China Agr Univ, Coll Resources & Environm Sci, Key Lab Plant Soil Interact MOE, Beijing 100094, Peoples R China; 7.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China; 8.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China; 9.China Agr Univ, Coll Resources & Environm Sci, Dept Agrometeorol, Beijing 100193, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Lin,Chen, Youfan,Zhao, Yuanhong,et al. Agricultural ammonia emissions in China: reconciling bottom-up and top-down estimates[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(1):339-355. |
APA | Zhang, Lin.,Chen, Youfan.,Zhao, Yuanhong.,Henze, Daven K..,Zhu, Liye.,...&Huang, Binxiang.(2018).Agricultural ammonia emissions in China: reconciling bottom-up and top-down estimates.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(1),339-355. |
MLA | Zhang, Lin,et al."Agricultural ammonia emissions in China: reconciling bottom-up and top-down estimates".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.1(2018):339-355. |
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