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최정민 ( Jung Min Choi ) 한국목재공학회 2011 목재공학 Vol.39 No.3
The combustion characteristics were evaluated for Japanese Red Pine (Pinus Densiflora) and Korean Pine (Pinus Koraensis). These two species are widely used as building member of Korea-style house and volume density of Japanese Red Pine is relatively higher than that of Korean Pine. The combustion characteristics are closely connected with volume density. The differences of two species in both total heat release (THR) and average heat release rate (HRR) seemed to be resulted from the volume density. Toxicity of smoke from the specimens was increased because of fire-retardant treatment.
소나무와 낙엽송 스킨팀버의 ACQ, CUAZ, CuHDO 가업처리를 위한 처리용 목재의 적정 함수율 및 처리목재의 정착 특성 평가
최용석 ( Yong Seok Choi ),오세민 ( Se Min Oh ),김규혁 ( Gyu Hyeok Kim ) 한국목재공학회 2011 목재공학 Vol.39 No.6
This study was conducted to evaluate the pressure treatment characteristics of Japanese red pine and Japanese larch skin timber with ACQ-2, CUAZ-2 and CuHDO-1. The effect of moisture content (MC) on preservative treatability was investigated for Japanese red pine sapwood and Japanese larch heartwood, and fixation characteristics of CCA alternatives was also evaluated Japanese red pine sapwood, which was dried below 30 percent MC, was fully penetrated with preservatives, and minimum requirement of preservative retention for the hazard class H3 was achieved. Through measuring preservative retention gradient in Japanese red pine sapwood, it was confirmed that the retention gradient of CuHDO-1 was steeper than that of both ACQ-2 and CUAZ-2. In particular, it was intensified at a higher MCs of wood samples (25~30%). Japanese larch heartwood did not meet the minimum requirement of penetration and retention for the hazard class H3 over the range of pretreatment MCs tested. With presteaming under 121˚C for 12 hours, the treatability of Japanese larch heartwood was enhanced to meet the minimum requirement for the hazard class H3. The fixation rate of copper was much more faster under drying condition compared with nondrying condition, more than 95% of copper were fixed in 3~6 days and 1 day under drying conditions in Japanese red pine sapwood and Japanese larch heartwood, respectively. After 3-week fixation period at ambient temperature, the amount of mobile copper in treated wood sample that remains available for leaching from treated wood was the highest in the wood samples treated with ACQ-2, followed by CuHDO-1 and CuAZ-2. It was proportional to the amount of copper in treating solution.
김영미,홍용표,안지영,박재인 한국자원식물학회 2012 한국자원식물학회지 Vol.25 No.1
To assess parameters of mating system in seed orchard, such as outcrossing rates, number of potential pollen contributors, and degree of pollen contamination, seeds, produced in ′77 plot of the Japanese red pine (Pinus densiflora S et Z) seed orchard at Anmyeon island, were collected in 2007 and analysed by nSSR and cpSSR markers. Estimates of outcrossing rates ranged from 91.2 to 100% (mean 97.7%) on the basis of the analysis of cpSSR haplotypes and from 81.6to 100% (mean 95.3%) on the basis of the analysis of nSSR genotypes. By cross checking of both DNA markers, seeds,presumed to be products of self pollination on the basis of single marker, were confirmed as outcrossed seeds, which resulted in cumulative outcrossing rates of 98.9%. On the basis of pooled cpSSR haplotype of each seed, the number of pollen contributors and paternal contribution rates were estimated as 14.8 and 0.512, respectively. In conclusion,considering pretty high level of outcrossing rates observed in a seed orchard, good genetic potential of the seeds, produced in ′77 plot of the seed orchard of Japanese red pines at Anmyeon island, may be guaranteed. Investigated results from the analysis of mating system of Japanese red pines in a ′77 plot of the seed orchard may also be expected to provide useful information for the management and establishment of the seed orchard of the progressive generation.
소나무 치수림 가꾸기가 솔수염하늘소의 서식에 미치는 영향
전권석 ( Kwon Seok Jeon ),박남창 ( Nam Chang Park ),홍성천 ( Sung Cheon Hong ) 한국산림과학회 2010 한국산림과학회지 Vol.99 No.4
Cage plots were established in 2008 to find the relationship between combination of tended Japanese red pine sapling and the habitation of Monochamus alternatus, a vector for pine wood nematode. Japanese red pine sapling tended at different times were successively put into the cage, and then the adult of Monochamus alternatus was put in June. Presence or absence of the larva was determined November. Sapling tendings were done at seven successive times in 2009, mid- and late February and March, mid-April, May and June. Some saplings were also tended in mid-October of 2008, the previous year of this experiment. The larva was found in all the saplings tended later than mid-March in 2009. No larva was found in the saplings tended in mid-October of 2008 and those in February of 2009. In case of the combination the by-products of mid-February and late March of 2009 and mid-October of 2008, the larva was found in the by-product of mid-February and late March of 2009, but those in mid-October of 2008 was not. When the saplings tended in mid-October of 2008 and mid- and late February of 2009 were put into the cage singly, the larva was found in all the saplings. Results indicated the mixture of the saplings tended at different times affected the habitation of Monochamus alternatus differently.
Biomass Expansion Factors of Natural Japanese Red Pine (Pinus densiflora) Forests in korea
Li, Xiao-Dong,Yi, Myong-Jong,Son, Yow-Han,Park, Pil-Sun,Lee, Kyeong-Hak,Son, Yeong-Mo,Kim, Rae-Hyun,Jeong, Mi-Jeong 한국식물학회 2010 Journal of Plant Biology Vol.53 No.6
Biomass expansion factors, which convert the timber volume (or dry weight) to biomass, are used to estimate the forest biomass and account for the carbon budget at the national or regional level. This study estimated the biomass conversion and expansion factors (BCEF), root to shoot ratio (R), biomass expansion factors (BEF) of natural Japanese Red Pine (Pinus densiflora Sieb. et Zucc.) forests based on direct field measurements and publications in Korea. This study attempted to fit the nonlinear relationships between the biomass expansion factors (BCEF and BEF) and main stand factors [stand age, tree height, and diameter at breast height (DBH)]. The relationship between BEF and each main stand factor was expressed as a simple logarithmical equation. The BCEF was also expressed as a logarithmical equation of the tree height, DBH, and stand volume, whereas there was no significant relationship between BCEF and stand age. The mean value for BCEF, BEF, and R was 0.5821 Mg $m^{-3}$ (n=22, SD=0.1196), 1.4465 (n=22, SD=0.2905), and 0.2220 (n=17, SD=0.0687), respectively. The values of the biomass expansion factors in this study may indicate much representativeness to estimate forest biomass in natural Japanese Red Pine forests of Korea than the default values given by the IPCC (2003, 2006).
소나무 배발생조직 라인 별 체세포배 유도 및 식물체 재분화
김용욱 ( Yong Wook Kim ),신한나 ( Han Na Shin ),문흥규 ( Heung Kyu Moon ) 한국임학회 2011 한국산림과학회지 Vol.100 No.3
본 연구는 소나무의 배발생조직 라인 간 증식율, 체세포배 유도 및 발아율의 효과를 조사하기 위해 수행되었다. 소나무 미숙접합배로부터 유도된 15개 배발생조직 라인 간 증식율 비교에서 05-4 라인은 5.3배의 최대 증식율을 보인 반면, 05-37라인은 1.4배로 가장 저조하여 조직 라인 간 증식율 차이가 크게 나타났다. 배발생조직 13개 라인의 체세포배 유도에서는 05-4라인에서 39.8개(90 mg 조직기준)를 유도하여 가장 높았지만 전체적으로는 단지 5개 조직라인(05-4, 12, 21, 29 및 37)에서만 체세포배 유도가 가능하였다. 나머지 8개 라인에서는 전혀 유도되지 않아 조 직라인 간 체세포배 유도효율의 큰 차이를 보였다. 3개의 조직라인에서 유래한 체세포배의 발아비교에서 05-4라인 유래 체세포배 발아율이 0.2% gelrite에서 가장 높은 47.3%로 나타났으나, 05-4 및 29라인에서는 0.2% 이상의 gelrite 농도에서 발아율이 점차 감소하는 경향을 보였다. 한편 05-37 라인 유래 체세포배의 발아는 0.1 혹은 0.2% 농도에서는 전혀 발아가 이루어지지 않아 gelrite 농도에 따른 발아율 차이를 나타냈다. 결론적으로 소나무의 배발생조직 라인 간 증식율, 체세포배 발생 효율 및 발아효과는 배발생조직 라인에 따라 크게 좌우되는 경향을 보였다. This experiment was conducted to evaluate growth rate among 15 embryogenic tissue lines (ETLs), comparison of maturation on somatic embryos (SEs) with 13 ETLs and efficiency with various concentrations of gelrite on SEs germination in Japanese red pine (Pinus densiflora). In comparison of ETLs growth rate (folds) with 15 lines, the 05-4 line (5.3 folds) showed the highest rate, on the other hand, the lowest one was recorded in the line of 05-37 (1.4 folds). The 13 ETLs were tested for the extent of SEs production. The best production was recorded in the line of 05-4 (39.8/90 mg F.W.). However, most of ETLs, except 5 lines (05-4,12, 21, 29 and 37), did not produce SEs at all, therefore, big differences in the ability of SEs production existed among the ETLs tested. Effects of various gelrite concentrations for SEs germination with 3 ETLs were also compared. The highest result was obtained from 0.2% gelrite concentration with 05-4 line (47.3%), there was a inclination that the rate of germination was gradually declined over 0.2% gelrite concentration with the 05-4 and 29 lines. respectively. In contrast, in the line of 05-37, no SEs germination occurred on medium with 0.1 or 0.2% gelrite. In conclusion, the growth rate, SEs production and germination frequency were appeared to deeply depended on the ETLs.