한국산림과학회지 (Journal of Korean Society of Forest Science)

  • 제98권5호
  • /
  • Pages.576-583
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  • 2009
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  • 2586-6613(pISSN)
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  • 2586-6621(eISSN)
한국산림과학회 (Korean Society of Forest Science)
권호 표지

Estimation Model and Vertical Distribution of Leaf Biomass in Pinus sylvestris var. mongolica Plantations

  • Liu, Zhaogang (School of Forestry Northeast Forestry University) ;
  • Jin, Guangze (School of Forestry Northeast Forestry University) ;
  • Kim, Ji Hong (College of Forest & Environmental Sciences, Kangwon National University)
  • 투고 : 2009.08.05
  • 심사 : 2009.10.07
  • 발행 : 2009.10.30
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초록

Based on the stem analysis and biomass measurement of 36 trees and 1,576 branches in Pinus sylvestris var. mongolica (Mongolian pine) plantations of Northeast China, this study was conducted to develop estimation model equation for leaf biomass of a single tree and branch, to examine the vertical distribution of leaf biomass in the crown, and to evaluate the proportional ratios of biomass by tree parts, stem, branch, and leaf. The results indicated that DBH and crown length were quite appropriate to estimate leaf biomass. The biomass of single branch was highly correlated with branch collar diameter and relative height of branch in the crown, but not much with stand density, site quality, and tree height. Weibull distribution function would have been appropriate to express vertical distribution of leaf biomass. The shape parameters from 29 sample trees out of 36 were less than 3.6, indicating that vertical distribution of leaf biomass in the crown was displayed by bell-shaped curve, a little inclined toward positive side. Apparent correlationship was obtained between leaf biomass and branch biomass having resulted in linear function equation. The stem biomass occupied around 80% and branch and leaf made up about 20% of total biomass in a single tree. As the level of tree class was increased from class I to class V, the proportion of the stem biomass to total biomass was gradually increased, but that of branch and leaf became decreased.

키워드

과제정보

연구 과제번호 : Forestry Science and Technology of China,National Forestry Key Technology of China,Forestry Commonweal Science and Technology of China

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