Pulse Brain · Growing Health Evidence Index
Peer-reviewed

Exploring global changes in agricultural ammonia emissions and their contribution to nitrogen deposition since 1980

Lei Liu, Wen Xu, X. L. Lu, Buqing Zhong, Yixin Guo, Xiao Lu, Yuanhong Zhao, Wei He, Songhan Wang, Xiuying Zhang, Xuejun Liu, Peter M. Vitousek

Proceedings of the National Academy of Sciences · 2022

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Summary

SignificanceAgricultural systems are already major forces of ammonia pollution and environmental degradation. How agricultural ammonia emissions affect the spatio-temporal patterns of nitrogen deposition and where to target future mitigation efforts, remains poorly understood. We develop a substantially complete and coherent agricultural ammonia emissions dataset in nearly recent four decades, and evaluate the relative role of reduced nitrogen in total nitrogen deposition in a spatially explicit way. Global reduced nitrogen deposition has grown rapidly, and will occupy a greater dominant position in total nitrogen deposition without future ammonia regulations. Recognition of agricultural ammonia emissions on nitrogen deposition is critical to formulate effective policies to address ammonia

Source type
Peer-reviewed study
DOI
10.1073/pnas.2121998119
Catalogue ID
SNmohku3qn-ni2kdl
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