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

ABSTRACT: 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

SUBMITTER: Liu L 

PROVIDER: S-EPMC9169101 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature