Nitrogen Addition Affects Nitrous Oxide Emissions of Rainfed Lucerne Grassland.

ABSTRACT: Nitrous oxide (N₂O) is a potent greenhouse gas. Assessing the N₂O emission from lucerne grasslands with nitrogen addition will aid in estimating the annual N₂O emissions of such agriculture areas, particularly following summer rainfall events in light of precipitation variation associated with global change. Here, we measured soil N₂O emissions, soil temperature and water content of lucerne grasslands with four levels of nitrogen addition over 25 days, which included 10 rainfall events. Results showed that nitrogen addition was observed to increase soil NO₃^--N content, but not significantly improve dry matter yield, height or leaf area index. Nitrogen addition and rainfall significantly affected N₂O emissions, whi

SUBMITTER: Li Y 

PROVIDER: S-EPMC9265669 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature