Nature Communications (Feb 2021)

Global irrigation contribution to wheat and maize yield

  • Xuhui Wang,
  • Christoph Müller,
  • Joshua Elliot,
  • Nathaniel D. Mueller,
  • Philippe Ciais,
  • Jonas Jägermeyr,
  • James Gerber,
  • Patrice Dumas,
  • Chenzhi Wang,
  • Hui Yang,
  • Laurent Li,
  • Delphine Deryng,
  • Christian Folberth,
  • Wenfeng Liu,
  • David Makowski,
  • Stefan Olin,
  • Thomas A. M. Pugh,
  • Ashwan Reddy,
  • Erwin Schmid,
  • Sujong Jeong,
  • Feng Zhou,
  • Shilong Piao

DOI
https://doi.org/10.1038/s41467-021-21498-5
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 8

Abstract

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There are big uncertainties in the contribution of irrigation to crop yields. Here, the authors use Bayesian model averaging to combine statistical and process-based models and quantify the contribution of irrigation for wheat and maize yields, finding that irrigation alone cannot close yield gaps for a large fraction of global rainfed agriculture.