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http://dx.doi.org/10.5532/KJAFM.2020.22.4.279

Influence of El Niño on the Production of Highland Kimchi Cabbage in South Korea  

Shim, Kyo-Moon (National Institute of Agricultural Sciences, RDA)
Kim, Yongseok (National Institute of Agricultural Sciences, RDA)
Hur, Jina (National Institute of Agricultural Sciences, RDA)
Jo, Sera (National Institute of Agricultural Sciences, RDA)
Kang, Kee-Kyung (National Institute of Agricultural Sciences, RDA)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.22, no.4, 2020 , pp. 279-286 More about this Journal
Abstract
The objective of this study was to assess the impact of El Niño on highland kimchi cabbage production for the period from 1991-2016 in South Korea. Years with less than 1.0 Oceanic Niño index (ONI) were classified into non El Niño years, while years with equal to or greater than 1.0 ONI were defined as El Niño years. The national average production (3,444 kg 10a-1) of high kimchi cabbage in El Niño years tended to be less than that in non El Niño years (3,722 kg 10a-1) with significant differences (p = 0.0042) in the production between these groups of years. The averaged production of highland kimchi cabbage of El Niño end years (3,289 kg 10a-1) was less than those of El Niño start years and non El Niño years by 310 and 433 kg 10a-1, respectively. Such difference was significant statistically (p=0.035). According to our analysis, the differences in kimchi cabbage productions resulted from low temperature, short sunshine duration, and precipitation increase during the cultivation period of highland kimchi cabbage. This study may help for further analysis on the impact of extreme weather conditions during El Niño years on crop production.
Keywords
El $Ni{\tilde{n}}o$; Oceanic $Ni{\tilde{n}}o$ Index; South Korea; Highland kimchi cabbage;
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