Abstract
Globally, changes in rainfall frequency can cause adverse impacts on many aspects of life, especially in the agriculture sector. The increased tendencies of extreme weather events (EWEs) have considerably affected the rice cultivation regions (RCRs) in Quang Nam Province due to the collapse and inundation, resulting in large damage to the crop yield. Understanding the impacts of the adverse weather phenomena on the RCRs can actively support mitigating the potential risks as well as loss in income due to a decrease in crop productivity. The study investigates trends in rainfall across Thang Binh District, a rice cultivation region of Quang Nam Province in the period 2000 - 2019. The Mann-Kendall test and Sen’s slope estimate with a 95% confidence level was used to detect maximum rainfall trends over time. The results indicated that terms of annual rainfall and maximum rainfall in the typhoon season months were mostly recorded as the changing trend. Contrary, the analysis also pointed out that a significant downtrend in the number of maximum rainy days and maximum rainfall in October and annual rainfall pattern can be considered a positive signal contributing to reducing the potential risks of crop loss caused by EWEs across the study area in the background of climate variability.
Published Version
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