from Part II - Climate Risk to Human and Natural Systems
Published online by Cambridge University Press: 17 March 2022
Agricultural production is expected to double by 2050 in order to satisfy the increasing demand for food, feed and bioenergy. However, under climate change, the frequency and magnitude of climate extremes are expected to increase and represent a future threat to food security by reducing crop growth and yield. Therefore, understanding the effects of climate extremes on crop production is essential to inform effective adaption and mitigation strategies to ensure future food security. This paper aims to review the mechanisms behind the climate impacts on crop yield and summarize the effects of climate extremes on agricultural production reported in the literature. Heat extremes and drought are found to increase frequently, and the impacts of climate extremes on crop growth mainly occur during the anthesis and grain filling stages, leading to final crop yield loss. Many approaches have been adopted to assess the effects of climate extremes on crop yield, each with its own strengths and weaknesses. Adaptation measures are encouraged to mitigate crop loss risk in the future, when more frequent and severe climate extremes are projected to occur in agricultural areas.
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