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Spatiotemporal Characterization and Hazard Assessment of Compound Extreme Events of Maize in Songliao Plain based on CEMI

In: Proceedings of the 11th Annual Meeting of Risk Analysis Council of China Association for Disaster Prevention (RAC 2024)

Author

Listed:
  • Ziyuan Zhou

    (Northeast Normal University, School of Environment)

  • Ying Guo

    (Northeast Normal University, School of Environment)

  • Dan Chen

    (Northeast Normal University, School of Environment)

  • Kaiwei Li

    (Anhui Science and Technology University, College of Agricultural)

  • Xiao Wei

    (Northeast Normal University, School of Environment)

  • Zhi Feng

    (Northeast Normal University, School of Environment)

  • Jiquan Zhang

    (Northeast Normal University, School of Environment)

  • Chunli Zhao

    (Jilin Agricultural University, College of Forestry and Grassland)

  • Zhijun Tong

    (Northeast Normal University, School of Environment)

  • Xingpeng Liu

    (Northeast Normal University, School of Environment)

Abstract

Since global climate anomalies have led to a significant increase in extreme weather and climate events, including their intensity and spatial extent, it is particularly important to study extreme events to ensure agricultural production. First, in this study, the standardized precipitation requirement index (SPRI) and standardized temperature index (STI) were used to characterize agricultural drought and waterlogging and heat, respectively, and the compound drought and heat magnitude index (CDHMI) and compound waterlogging and heat magnitude index (CWHMI) were constructed by modeling the marginal distribution. Next, the occurrence patterns of identified compound drought and heat events (CDHEs) and compound waterlogging and heat events (CWHEs) were statistically analyzed. Finally, a hazard assessment model was constructed by fitting probability density curves. The results showed that CWHEs in the maize growing season in the Songliao Plain mainly occurred in the northern part of the study area, and CDHEs mainly occurred in the central and southern parts of the study area. The number of both CDHEs and CWHEs increased in most parts of the Songliao Plain. Higher hazard classes for CDHEs occur mainly in the middle of the maize reproductive period, while higher hazard classes for CWHEs occur mainly in the late maize reproductive period.

Suggested Citation

  • Ziyuan Zhou & Ying Guo & Dan Chen & Kaiwei Li & Xiao Wei & Zhi Feng & Jiquan Zhang & Chunli Zhao & Zhijun Tong & Xingpeng Liu, 2025. "Spatiotemporal Characterization and Hazard Assessment of Compound Extreme Events of Maize in Songliao Plain based on CEMI," Advances in Economics, Business and Management Research, in: Sen Qiao & Hongbin Cao & Aiwen Liu & Xueliang Chen & Tiefei Li & Peng Han (ed.), Proceedings of the 11th Annual Meeting of Risk Analysis Council of China Association for Disaster Prevention (RAC 2024), pages 108-114, Springer.
    • Handle: RePEc:spr:advbcp:978-94-6463-946-9_14
    DOI: 10.2991/978-94-6463-946-9_14
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