Korean Journal of Environment and Ecology (한국환경생태학회지)

Korean Society of Environment and Ecology (한국환경생태학회)
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A Study for Growth Density on the Pinus thunbergii and Pinus densiflora Communities in area of Busan, Korea

부산일대 곰솔림과 소나무림의 생육 밀도에 관한 연구

  • Lee, Sang-Cheol (Dept. of Landscape Architecture, Graduate School, Pusan National Univ.) ;
  • Hong, Suk-Hwan (Dept. of Landscape Architecture, Pusan National Univ.) ;
  • Kim, Dong-Pil (Dept. of Landscape Architecture, Pusan National Univ.) ;
  • Choi, Song-Hyun (Dept. of Landscape Architecture, Pusan National Univ.) ;
  • Ahn, Mi-Yeon (Dept. of Landscape Architecture, Graduate School, Pusan National Univ.)
  • 이상철 (부산대학교 대학원 조경학과) ;
  • 홍석환 (부산대학교 조경학과) ;
  • 김동필 (부산대학교 조경학과) ;
  • 최송현 (부산대학교 조경학과) ;
  • 안미연 (부산대학교 대학원 조경학과)
  • Received : 2017.11.28
  • Accepted : 2018.04.11
  • Published : 2018.04.30
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Abstract

The climate change is expected to weaken the habitat of Pinus densiflora and P. thunbergii, but they are still in high demand for planting. This study aims to suggest the rational community planting design based on natural forests' community structure in the southeastern region of Korea (warm temperate zone). For this study, we surveyed 22 plots of Pinus densiflora community and 60 plots of P. thunbergii community in Busan Metropolitan City which is located in the southeastern part of the Korean peninsula. We investigated the diameter of breath hight (DBH) and population of each tree layer in a $100m^2$ quadrat and used a regression analysis to derive a regression equation for estimating the mean number of planting individuals in each DBH. The coefficient between canopy layer's DBH and growth individuals per unit area ($100m^2$) was 0.700 for P. thunbergii communities and 0.533 for P. densiflora communities, indicating very high explanatory power by single factor. The predicted regression equation of between DBH and growth density was $Y=31.176e^{-0.055x}$ (X=DBH, Υ=growth individuals per $100m^2$) for P. thunbergii communities and $Y=38.351e^{-0.059x}$ for P. densiflora communities. Planting densities of P. densiflora communities and P. thunbergii communities in southeast region were higher than the central region.

기후변화로 인한 곰솔림과 소나무림의 세력은 약해질 것으로 예상되고 있으나, 곰솔과 소나무에 대한 식재요구도는 여전히 높은 실정이다. 이에 본 연구는 한반도 난온대림지역에 속하는 부산일대, 남동부지역에 주요 조경수목인 소나무림과 곰솔림을 대상으로 자연림의 생육밀도를 파악한 후 난온대림에 적합한 생태적 식재밀도를 제시하고자 하였다. 연구는 한반도 남동부에 해당하는 부산광역시를 중심으로 소나무림 22개소, 곰솔림 60개소를 선정하여 $100m^2$ 방형구를 설치하여 조사구 내 출현하는 교목, 아교목층 수종의 흉고직경 및 개체수를 조사한 후, 회귀분석을 통해 평균흉고직경급별 적정 개체수 산정을 위한 회귀식을 도출하였다. 회귀분석 결과, 흉고직경의 생장에 따른 교목층 생육개체수 예측모형의 결정계수는 곰솔림 0.700, 소나무림 0.533으로 단일 요인에 의한 설명력으로는 매우 높은 것으로 분석되었다. 예측 회귀모형은 곰솔림의 경우 $Y=31.176e^{-0.055x}$, 소나무림의 경우 $Y=38.351e^{-0.059x}$(X=흉고직경, Y=개체수/$100m^2$)였다. 남동부지역의 곰솔림과 소나무림의 생육밀도는 중부지방보다 다소 높았다.

Keywords

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