Agriculture

Divergent effectiveness of irrigation in enhancing food security in droughts under future climates with various emission scenarios

Q. Zhang, H. Yu, et al.

Discover how irrigation can play a vital role in reducing wheat yield losses during drought in China, according to groundbreaking research by Qiang Zhang, Huiqian Yu, Jianfeng Li, Brent Clothier, Vijay P. Singh, and Zexi Shen. Learn how climate change scenarios shape the effectiveness of irrigation in securing future food production.

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Abstract

This study investigates the effectiveness of irrigation in mitigating drought-induced wheat yield losses in China under various climate change scenarios. Using the modified Palmer Drought Severity Index (MPDSI), multiple linear regression, deep learning, and the EPIC crop model, the researchers analyzed drought impacts on irrigated and non-irrigated wheat production. Results indicate that while irrigation effectively reduces drought impacts under RCP2.6 and RCP6.0 scenarios, its effectiveness diminishes significantly under the high-emission RCP8.5 scenario. This highlights the crucial role of climate change mitigation in ensuring future food security.

Publisher

npj Climate and Atmospheric Science

Published On

May 23, 2023

Authors

Qiang Zhang, Huiqian Yu, Jianfeng Li, Brent Clothier, Vijay P. Singh, Zexi Shen

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