인간식물환경학회지 (Journal of People, Plants, and Environment)

  • 제24권5호
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  • Pages.519-527
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  • 2021
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  • 2508-7673(pISSN)
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  • 2508-7681(eISSN)
인간식물환경학회 (Society For People, Plants, And Environment)
권호 표지
DOI QR코드

DOI QR Code

Plant Hardiness Zone Map in Korea and an Analysis of the Distribution of Evergreen Trees in Zone 7b

  • Suh, Jung Nam (National Institute of Horticultural and Herbal Science, Rural Development Administration) ;
  • Kang, Yun-Im (National Institute of Horticultural and Herbal Science, Rural Development Administration) ;
  • Choi, Youn Jung (National Institute of Horticultural and Herbal Science, Rural Development Administration) ;
  • Seo, Kyung Hye (National Institute of Horticultural and Herbal Science, Rural Development Administration) ;
  • Kim, Yong Hyun (National Institute of Horticultural and Herbal Science, Rural Development Administration)
  • 투고 : 2021.08.31
  • 심사 : 2021.10.14
  • 발행 : 2021.10.31
⟨ 이전 논문 다음 논문 ⟩

초록

Background and objective: This study was conducted to establish a Plant Hardiness Zone (PHZ) map, investigate the effect of global warming on changes in PHZ, and elucidate the difference in the distribution of evergreen trees between the central and southern region within hardiness Zone 7b in Korea. Methods: Mean annual extreme minimum temperature (EMT) and related temperature fluctuation data for 40 years (1981 to 2020) in each of the meteorological observation points were extracted from the Open MET Data Portal of the Korea Meteorological Administration. Using EMT data from 60 meteorological observation points, PHZs were classified according to temperature range in the USDA Plant Hardiness Zone Map. Changes in PHZs for each decade related to the effects of global warming were analyzed. Temperature fluctuation before and after the day of EMT were analyzed for 4 areas of Seoul, Suwon, Suncheon, and Jinju falling under Zone 7b. For statistical analysis, descriptive statistics and ANOVA were performed using the IBM SPSS 22 Statistics software package. Results: Plant hardiness zones in Korea ranged from 6a to 9b. Over four decades, changes to warmer PHZ occurred in 10 areas, especially in colder ones. Based on the analysis of daily temperature fluctuation, the duration of sub-zero temperatures was at least 2 days in Seoul and Suwon, while daily maximum temperatures were above zero in Suncheon and Jinju before and after EMT day. Conclusion: It was found that the duration of sub-zero temperatures in a given area is an important factor affecting the distribution of evergreen trees in PHZ 7b.

키워드

과제정보

This study was conducted with the support of the basic research project by the National Institute of Horticultural Herbal Science under the Rural Development Administration (Project No. PJ01602401).

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