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http://dx.doi.org/10.5532/KJAFM.2017.19.2.54

A Meteorological Analysis on High Rice Yield in 2015 in South Korea  

Kim, Junhwan (Crop physiology and production, National Institute of Crop Science, Rural Development Administration)
Sang, Wangyu (Crop physiology and production, National Institute of Crop Science, Rural Development Administration)
Shin, Pyeong (Crop physiology and production, National Institute of Crop Science, Rural Development Administration)
Cho, Hyeounsuk (Crop physiology and production, National Institute of Crop Science, Rural Development Administration)
Seo, Myungchul (Crop physiology and production, National Institute of Crop Science, Rural Development Administration)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.19, no.2, 2017 , pp. 54-61 More about this Journal
Abstract
Rice yield of South Korea in 2015 was the highest in last 30 years. The future direction of food policy in South Korea can be determined depending on whether the historically highest yield in 2015 can be continued or just one-off event. Therefore, it is necessary to understand whether such a high yield as 2015 can be reoccurred and how often it can occur. This study used the yield monitoring data from National Institute of Crop Science, Rural Development Administration and the meteorological data provided by Korea Meteorological Administration to identify the weather conditions, which could cause high yield, and how often these conditions occurred in the past. Our results showed that significantly high yield in 2015 could occur only when the mean sunshine hours of July and the mean sunshine hours from the end of August to early September are 5.1 hours and 6 hours, respectively. The probability of satisfying these weather conditions was 8/35 (23%) over the past 35 years. And the probability of successive high yield for two years was 1/35 (2.9%). The probability of recurrence of high yield within the next 5 years or 10 years after high yield was 4/35 (11.4%).
Keywords
Rice; High yield; Meteorology; Probability;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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