한국산림과학회지 (Journal of Korean Society of Forest Science)

  • 제108권4호
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  • Pages.484-492
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  • 2019
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  • 2586-6613(pISSN)
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  • 2586-6621(eISSN)
한국산림과학회 (Korean Society of Forest Science)
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저온처리에 따른 국내 상록활엽수종의 내한성 비교 평가

The Comparative Assessment of Cold Tolerance of Broad-leaved Evergreen Trees by Low Temperature Treatment

  • 진언주 (국립산림과학원 산림바이오소재연구소) ;
  • 윤준혁 (국립산림과학원 산림바이오소재연구소) ;
  • 배은지 (국립산림과학원 산림바이오소재연구소) ;
  • 최명석 (경상대학교 환경산림과학부&농업생명과학연구원)
  • Jin, Eon-Ju (Forest Bio materials Research Center, National Institute of Forest Science) ;
  • Yoon, Jun Hyuck (Forest Bio materials Research Center, National Institute of Forest Science) ;
  • Bae, Eun-Ji (Forest Bio materials Research Center, National Institute of Forest Science) ;
  • Choi, Myung Suk (Division of Environmental Forest Science, Gyeongsang National University & Institute of Agriculture of Life Science)
  • 투고 : 2019.07.11
  • 심사 : 2019.11.12
  • 발행 : 2019.12.31
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초록

본 연구는 기후변화에 대응하여 광범위한 지역에서 가로수 식재에 활용 가능한 상록활엽수를 선발하기 위한 연구의 일환으로서 국내 남부지역에서 생육하는 굴거리나무, 녹나무, 동백나무, 다정큼나무, 종가시나무, 후박나무, 황칠나무 등 7수종에 대하여 내한성을 비교하기 위해 수행되었다. 저온처리에 따른 7종 상록활엽수의 전해질 용출을 측정한 결과 처리 온도가 낮아질수록 값이 증가하였고, 전해질 용출량과 처리 온도와의 관계를 비선형회귀를 통하여 분석한 결과 도출된 함수들은 S자 반응곡선의 형태로 나타났다. 예측치사 온도를 통하여 수종별 내한성을 분석한 결과 동백나무(-11.586℃)> 다정큼나무(-9.348℃)> 종가시나무(-8.719℃)> 후박나무(-8.090℃)> 굴거리나무(-7.409℃)> 황칠나무(-7.085℃)> 녹나무(-6.995℃) 순으로 조사되었다. 앞서 평가한 것처럼 국내 남부지역의 동일한 지역에서 생육하는 7종 상록활엽수들 중에서도 상대적 내한성 차이가 5℃ 이상을 나타냈고 동일한 과에 속하는 종간에서도 녹나무과는 내한성 차이가 2℃ 이상을 나타냈다. 내한성이 강한 우수 수종을 분석한 결과 종가시나무, 동백나무, 다정큼나무이며 이들은 중부지역 도시들에서 외부 온도 조건으로 생존 가능성을 평가할 필요가 있다고 판단된다.

The aim of the present study was to compare the cold tolerance of seven different types of trees growing in southern Korea to select evergreen broad-leaved trees that can be used as street trees in large land areas experiencing climate change. The trees compared were the thorn tree, Cinnamomum camphora, Camellia japonica, Machilus thunbergii, Dendropanax morbifera, Daphniphyllum macropodum Miq., Quercus glauca Thunb., and Raphiolepis indica. When the trees were subjected to low temperature treatment, their electrolyte elution volume values appeared to increase with the decreases in the treatment temperature. The analysis of the cold tolerance of each type of tree was based on the estimated temperatures in the following order: C. japonica (-11.586℃) > R. indica (-9.348℃) > Q. glauca (-8.719℃) > M. thunbergii (-8.090℃) > D. macropodum (-7.409℃) > D. morbifera (-7.085℃) > C. camphora (-6.995℃). The relative cold tolerance difference found in the seven tree species was more than 5℃, as evaluated previously. In the Lauraceae family, the difference in cold tolerance was more than 2℃, even in the same species. The analysis showed that trees with excellent cold tolerance included Q. glauca Thunb., C. japonica, R. indica, and the thorn tree. This knowledge is required for the evaluation of the possibility of the survival of trees under cold temperature conditions in cities.

키워드

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