Agriculture

U.S. winter wheat yield loss attributed to compound hot-dry-windy events

H. Zhao, L. Zhang, et al.

This research reveals alarming trends in the increase of compound hot-dry-windy events in the U.S. Great Plains, showing a significant impact on winter wheat yields. Conducted by a team of experts, including Haidong Zhao and Lina Zhang, this study uncovers the atmospheric links to these events and their historical implications, emphasizing the urgent need for updated risk assessments.

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Abstract

Compound hot-dry-windy events (HDW) significantly increased in the U.S. Great Plains from 1982 to 2020, causing a 4% winter wheat yield reduction per 10 h of HDW during heading to maturity. These events, overlooked in traditional risk assessments, are associated with yield reduction rates up to 0.09 t ha⁻¹ per decade and are atmospherically linked to the Pacific Decadal Oscillation. Losses were concentrated in areas historically affected by the Dust Bowl.

Publisher

Nature Communications

Published On

Nov 24, 2022

Authors

Haidong Zhao, Lina Zhang, M. B. Kirkham, Stephen M. Welch, John W. Nielsen-Gammon, Guihua Bai, Jiebo Luo, Daniel A. Andresen, Charles W. Rice, Nenghan Wan, Romulo P. Lollato, Dianfeng Zheng, Prasanna H. Gowda, Xiaomao Lin

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