Rice Science ›› 2023, Vol. 30 ›› Issue (4): 276-293.DOI: 10.1016/j.rsci.2023.03.010

• Reviews • Previous Articles     Next Articles

Assessment of Climate Change Impact on Water Requirement and Rice Productivity

Konan Jean-Yves N’guessan1(), Botou Adahi2, Arthur-Brice Konan-Waidhet1, Satoh Masayoshi3, Nogbou Emmanuel Assidjo4   

  1. 1Environmental Training and Research Unit, Laboratory of Environmental Sciences and Technologies, Université Jean Lorougnon Guédé, BP 150 Daloa, Côte d’Ivoire
    2Department of Training and Research of Rural Engineering and Geographic Sciences, Institut National Polytechnique FÉLIX HOUPHOUËT-BOIGNY, BP 1093 Yamoussoukro, Côte d’Ivoire
    3University of Tsukuba, Ibaraki 305-8577, Japan
    4Department of Training and Research of Chemical and Food Engineering, Laboratory of Modelling, Information and Processes, Institut National Polytechnique FÉLIX HOUPHOUËT-BOIGNY, BP 1093 Yamoussoukro, Côte d’Ivoire
  • Received:2022-10-07 Accepted:2023-03-02 Online:2023-07-28 Published:2023-05-26
  • Contact: Konan Jean-Yves N’GUESSAN (yvesng7988@outlook.fr)

Abstract:

Assessing the impact of climate change (CC) on agricultural production systems is mainly done using crop models associated with climate model outputs. This review is one of the few, with the main objective of providing a recent compendium of CC impact studies on irrigation needs and rice yields for a better understanding and use of climate and crop models. We discuss the strengths and weaknesses of climate impact studies on agricultural production systems, with a particular focus on uncertainty and sensitivity analyses of crop models. Although the new generation global climate models (GCMs) are more robust than previous ones, there is still a need to consider the effect of climate uncertainty on estimates when using them. Current GCMs cannot directly simulate the agro-climatic variables of interest for future irrigation assessment, hence the use of intelligent climate tools. Therefore, sensitivity and uncertainty analyses must be applied to crop models, especially for their calibration under different conditions. The impacts of CC on irrigation needs and rice yields vary across regions, seasons, varieties and crop models. Finally, integrated assessments, the use of remote sensing data, climate smart tools, CO2 enrichment experiments, consideration of changing crop management practices and multi-scale crop modeling, seem to be the approaches to be pursued for future climate impact assessments for agricultural systems.

Key words: climate change, rice production, irrigation, crop model, climate model