Coupling the environmental impacts of reactive nitrogen losses and yield responses of staple crops in China.

ABSTRACT: Cropland reactive nitrogen losses (Nr) are of the greatest challenges facing sustainable agricultural intensification to meet the increases in food demand. The environmental impacts of Nr losses and their yield responses to the mitigation strategies were not completely evaluated. We assessed the environmental impacts of Nr losses in China and coupled the efficiency of mitigation actions with yield responses. Datasets about Nr losses in China were collected, converted into potentials of acidification (AP), global warming (GWP), and aquatic eutrophication (AEP), and analyzed by a meta-analysis program. Results showed that producing 1 Mg of rice grains had the highest AP (153 kg acid equiv.), while wheat had the highest GWP and AEP (74 kg CO₂ equiv. and 0.37 kg PO₄ equiv

SUBMITTER: Abdo AI 

PROVIDER: S-EPMC9450997 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature