Global nitrous oxide emissions from livestock manure during 1890-2020 : An IPCC tier 2 inventory

Bibliographische Detailangaben
Veröffentlicht in:	Global change biology. - 1999. - 30(2024), 5 vom: 22. Mai, Seite e17303
1. Verfasser:	Zhang, Lei (VerfasserIn)
Weitere Verfasser:	Pan, Shufen, Ouyang, Zhiyun, Canadell, Josep G, Chang, Jinfeng, Conchedda, Giulia, Davidson, Eric A, Lu, Fei, Pan, Naiqing, Qin, Xiaoyu, Shi, Hao, Tubiello, Francesco N, Wang, Xiaoke, Zhang, Yuzhong, Tian, Hanqin
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2024
Zugriff auf das übergeordnete Werk:	Global change biology
Schlagworte:	Journal Article IPCC 2019 guidelines N2O emissions N2O mitigation livestock manure tier 2 approach Nitrous Oxide K50XQU1029 Manure Air Pollutants

Beschreibung
Zusammenfassung:	© 2024 John Wiley & Sons Ltd. Nitrous oxide (N2O) emissions from livestock manure contribute significantly to the growth of atmospheric N2O, a powerful greenhouse gas and dominant ozone-depleting substance. Here, we estimate global N2O emissions from livestock manure during 1890-2020 using the tier 2 approach of the 2019 Refinement to the 2006 IPCC Guidelines. Global N2O emissions from livestock manure increased by ~350% from 451 [368-556] Gg N year-1 in 1890 to 2042 [1677-2514] Gg N year-1 in 2020. These emissions contributed ~30% to the global anthropogenic N2O emissions in the decade 2010-2019. Cattle contributed the most (60%) to the increase, followed by poultry (19%), pigs (15%), and sheep and goats (6%). Regionally, South Asia, Africa, and Latin America dominated the growth in global emissions since the 1990s. Nationally, the largest emissions were found in India (329 Gg N year-1), followed by China (267 Gg N year-1), the United States (163 Gg N year-1), Brazil (129 Gg N year-1) and Pakistan (102 Gg N year-1) in the 2010s. We found a substantial impact of livestock productivity, specifically animal body weight and milk yield, on the emission trends. Furthermore, a large spread existed among different methodologies in estimates of global N2O emission from livestock manure, with our results 20%-25% lower than those based on the 2006 IPCC Guidelines. This study highlights the need for robust time-variant model parameterization and continuous improvement of emissions factors to enhance the precision of emission inventories. Additionally, urgent mitigation is required, as all available inventories indicate a rapid increase in global N2O emissions from livestock manure in recent decades
Beschreibung:	Date Completed 14.05.2024 Date Revised 14.05.2024 published: Print Citation Status MEDLINE
ISSN:	1365-2486
DOI:	10.1111/gcb.17303