Articles | Volume 25, issue 3
https://doi.org/10.5194/hess-25-1411-2021
https://doi.org/10.5194/hess-25-1411-2021
Research article
 | 
24 Mar 2021
Research article |  | 24 Mar 2021

Canopy temperature and heat stress are increased by compound high air temperature and water stress and reduced by irrigation – a modeling analysis

Xiangyu Luan and Giulia Vico

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Latest update: 18 Jul 2024
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Short summary
Crop yield is reduced by heat and water stress, particularly when they co-occur. We quantify the joint effects of (unpredictable) air temperature and soil water availability on crop heat stress via a mechanistic model. Larger but more infrequent precipitation increased crop canopy temperatures. Keeping crops well watered via irrigation could reduce canopy temperature but not enough to always exclude heat damage. Thus, irrigation is only a partial solution to adapt to warmer and drier climates.