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2024 Vol.69, Issue 1 Preview Page
Classification of Cultivation Region for Soybean (Glycine max [L.]) in South Korea Based on 30 Years of Weather Indices

평년기상을 활용한 우리나라의 콩 재배지역 구분

Dong-Kyung Yoon1
,
Jaesung Park2*
,
Jinhee Seo2
,
Okjae Won2
,
Man-Soo Choi3
,
Hyeon Su Lee2
,
Chaewon Lee4
윤 동경1
,
박 재성2*
,
서 진희2
,
원 옥재2
,
최 만수3
,
이 현수2
,
이 채원4
1Postdoc, Crop Production Technology Research Division, Department of Southern Area Crop Science, National Institute of Crop Science, RDA, Miryang 50424, Korea
2Junior Research Scientist, Crop Production Technology Research Division, Department of Southern Area Crop Science, National Institute of Crop Science, RDA, Miryang 50424, Korea
3Senior Research Scientist, Crop Production Technology Research Division, Department of Southern Area Crop Science, National Institute of Crop Science, RDA, Miryang 50424, Korea
4Junior Research Scientist, Crop Cultivation and Environment Research Division, Department of Central Area Crop Science, National Institute of Crop Science, RDA, Suwon 16429, Korea
1국립식량과학원 남부작물부 생산기술개발과 박사후연구원
2국립식량과학원 남부작물부 생산기술개발과 농업연구사
3국립식량과학원 남부작물부 생산기술개발과 농업연구관
4국립식량과학원 중부작물부 재배환경과 농업연구사
*Corresponding Author
1 March 2024. pp. 49-60
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Abstract

A region can be divided into cultivation zones based on homogeneity in weather variables that have the greatest influence on crop growth and yield. This study classified the cultivation zone of soybean using weather indices as a prior study to classify the agroclimatic zone of soybean. Meteorological factors affecting soybeans were determined through correlation analysis over a 10 year period (from 2013 to 2022) using data from the Miryang and Suwon regions collected from the soybean yield trial database of the Rural Development Administration, Korea and the meteorological database of the Korea Meteorological Administration. The correlation between growth characteristics and the minimum temperature, daily temperature range, and precipitation were high during the vegetative growth stages. Moreover, the correlation between yield components and the maximum temperature, daily temperature range, and precipitation were high during the reproductive growth stages. As a result of k-means clustering, soybean cultivation zones were divided into three zones. Zone 1 was the central inland region and southern Gyeonggi-do; Zone 2 was the southern part of the west coast, the southern part of the east coast, and the South Sea; and Zone 3 included parts of eastern Gyeonggi-do, Gangwon-do, and areas with high altitudes. Zone 1, which has a wide latitude range, was further subdivided into three cultivation zones. The results of this study may provide useful information for estimating agrometeorological characteristics and predicting the success of soybean cultivation in South Korea.

Keywords
agricultural geography
climate factor
cultivation zone
k-means clustering
soybean
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Information
  • Publisher :The Korean Society of Crop Science
  • Publisher(Ko) :한국작물학회
  • Journal Title :The Korean Journal of Crop Science
  • Journal Title(Ko) :한국작물학회지
  • Volume : 69
  • No :1
  • Pages :49-60
  • Received Date : 2024-01-18
  • Revised Date : 2024-02-21
  • Accepted Date : 2024-02-21
  • DOI :https://doi.org/10.7740/kjcs.2024.69.1.049
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