Data supporting Legacy nitrogen drives the magnitude and trajectory of global wheat N2O emissions

Processed field, isotope, nitrogen-transformation, qPCR, metagenomic, network and global-synthesis data, together with derived global predictors, final random-forest model bundles, gridded RF and IPCC outputs, and quality-control records supporting the manuscript “Legacy nitrogen drives the magnitude and trajectory of global wheat N2O emissions”. Raw metagenomic reads are archived under NCBI BioProject PRJNA1510229 (Study SRP725580), comprising 45 BioSample and 45 SRA run accessions. Reproducibility code is available at https://github.com/zoujun2022/CNS-wheat-N2O-reproducibility and https://doi.org/10.5281/zenodo.21935304. CC BY 4.0 applies to author-produced content. Third-party source datasets are not redistributed and retain their original terms.