Effects of Extreme Weather Events on Nitrous Oxide Emissions from Rice-Wheat Rotation Croplands.

ABSTRACT: Cropland ecosystems are significant emission sources of N₂O, but a limited number of studies have focused on the impact of extreme weather events on N₂O fluxes from cropland. This present study integrated field observations and model simulations to explore the responses of N₂O fluxes to extreme weather events in typical rice and wheat rotation croplands in the middle and lower reaches of the Yangtze River (MLRYR) in China. The findings revealed that the studied rice-wheat rotation cropland exhibited a net source of N₂O over the three-year monitoring period, with annual cumulative N₂O emissions ranging from 190.4 to 261.8 mg N m^-2. N₂O emissions during the rice and wheat growing seasons accounted for 29% and 71% of

SUBMITTER: Xia Y 

PROVIDER: S-EPMC10780663 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature