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국내연구정보 (Domestic information)
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  뿌리의 공간분포 Spatial Distribution of Korean White Pine Tree Roots
  글쓴이 : 관리자     날짜 : 08-04-04 12:08     조회 : 8090    
수목의 근계구성에 따른 사면의 붕괴방지효과에 관한 연구 -잣나무 뿌리의 공간분포- A Study on Slope Stability Effects by the Tree Root Systems -Spatial Distribution of Korean White Pine Tree Roots- 한국임학회지 92(1):33-41 Jour. Kor. For. Soc. 92(1):33-41 2003> Corresponding author  dscha@kangwon,ac.kr

뿌리의 인장강도에 의해서 발생하는 음의 전단저항증가량을 예측하기 위해서는 임의의 깊이에 존재하는 뿌리의 직경별 본수에 대한 정보가 요구된다. 따라서 잣나무 뿌리를 대상으로 공간적 분포 특성에 대한 조사를 실시하였다. Weibull 분포함수와 토층 10cm별로 뿌리의 체적과 본수를 이용하여 임의의 토층에 있는 뿌리의 분포와 양을 추정할 수 있는 모델을 개발하였다. 또한 재발된 모델의 신뢰성을 표준오차로서 검증한 결과, 뿌리분포는 토층 20cm까지를 제외하고는 거의 유사한 결과를 나타내었다.
In the analysis of slope stability, the roots of tree have been considered to act as a soil reinforcement. In order to predict the enhancement of soil shear resistance which produced by tensile strength of roots, it is essential to be informed for the number of root by diameter class at arbitrary depth of soil. For this purpose, Korean white pine trees were selected and investigated to evaluate the characteristics of spatial root distribution. The total root volume and the number of roots were investigated by every 10cm of soil depth and then applied by Weibull distribution function. Using these results, a simulation model was developed to estimate the quantity and distribution of tree roots at an arbitrary depth, Standard error between measured and simulated value of root distribution was used to evaluate the developed root distribution simulation model that can be estimated the root number at an arbitrary depth. The results showed that measured and simulated distributions of root were similar with the exception of 20cm of surface soil.
Key words: root spatial distribution, simulation model, slope stability, standard error, Weibull function

   

 
   

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