• The Korean Journal of Ecology
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• 제9권1호
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• pp.51-58
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• 1986

The decay rates of organic matter were investigated and the leaching rates were determined from the concentration distribution of N,P,K, Ca and Na in the soil profile at Pinus rigida stand on Mt. Gwan-ak and at Pseudosasa japonica stand on Odong-do. In order to determine the leaching rates θo/W wazs substituted with KL in Towner's equation. Decay rates were 0.191 at Pinus stand on Mt. Gwan-ak and 0.234 at Pseudosasa stan don Odong-do. Concentration distributions of N,P, K and Na in soil profiles were corresponed with Towner's model curve. Leaching rates determined from concentration distributions were 0.086, 0.079, 0.041, 0.029, 0.096 on Mt. Gwan-ak and 0.080, 0.056, 0.051, 0.008, 0.028 on Odong-do. The soil of Pseudosasa stand showed on the whole lower leaching rates than that of Pinus stand. The soil of Pseudosasa stand showing higher decay rate and lower leaching rates contained more concentration of each nutrient than that of Pinus stand.

• The Korean Journal of Ecology
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• 제24권6호
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• pp.341-348
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• 2001

Population dynamics of the oldest relic stand of Pinus densiflora for. erecta which remains as a status of patch in Sokwang-Ri area, Uljin-Gun, was studied to provide the basic data for conservation of the oldest pine stand in Korea. The upper slope site and ridge site including total 12 plots mainly represented Pinus densiflora for. erecta and Quercus mongolica. These two tree species showed reverse J-shaped distribution. From this information, it was concluded that intensive interspecific competition between two species could be occurring. Age distribution of P. densiflora for. erecta on the sites above middle slope area was indicated bi-modal type or tri-modal type which was known as an age structure of climax forest. Therefore, it was estimated that Pinus densiflora for. erecta population could be continuously maintained in the each patch above middle slope area. In the valley sites, hardwood species such as Q. mongolica, Q. variabilis, Styrax obassia and Acer pseudosieboldianum occupied most part of the under crown-cover area and their seedlings and saplings were developing into the closed upper layer crown because the height of upper layer crown reached about 35 meters and such a high crown height was more suitable for light utilization by plants of under layer. The growth patterns were mainly fluctuated for the entire life time of the oldest tree caused by frequent disturbance. And the initial growth curves of the mature trees and suppressed juvenile trees showed different tendencies along the sites.

• 한국산림과학회지
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• 제51권1호
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• pp.36-40
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• 1981

소나무속(屬) 23수종(樹種)의 침엽(針葉) Peroxidase 동위효소(同位酵素)를 전분(澱粉)겔 전기영동법으로 분석하였다. 각종(種)마다 특유(特有)의 밴드형(型)을 가지고 있었으며 이들 밴드형(型)은 7개군(個群)으로 나눌 수 있었다. 이가운데 제II군(群)은 어느 수종(樹種)에서나 나타나서 소나무속(屬)의 고유형(固有型)으로 추정(推定)하였다. 이들 7개군(個群)은 고전적(古典的) 형태분류군(形態分類群)과는 확실(確実)한 관계(関係)를 발견(発見)할 수 없었다.

• 한국환경복원기술학회지
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• 제7권5호
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• pp.38-46
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• 2004

This study was carried out to analyze forest vegetation in Seodaesan of Geumsan, Chungnam Province. Employing the releve method of Braun-Blanquet and quadrat method, 36 plots were sampled in forest of Seodaesan. The sub-communities were classified into Pinus densiflora, Acer pseudosieboldianum, and Carpinus laxiflora sub-community of Quercus mongolica community. The importance values were 77.07 in Quercus mongolica, 40.79 in Pinus densiflora, 17.03 Fraxinus rhynchophylla, 14.06 in Fraxinus sieboldiana, 13.99 in Quercus serrata, 12.93 Acer pseudosiebotdianum. Coverage rate was 84.6% in tree layer, 52.8% in subtree layer, 29.1% in shrub layer, 27.9% in herb layer, respectively. Most of the DBH of Quercus mongolica and Pinus densiflora was between 5cm and 20cm. Therefore, Quercus mongolica and Pinus densiflora might be dominant species in the study area for several decades. Acer pseudosieboldianum and Carpinus laxiflora sub-communities were distributed mainly in a high-altitude and northern and north-western area. Pinus densiflora sub-community was distributed mainly in a low-altitude and western area.

• 한국식품과학회지
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• 제29권2호
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• pp.204-210
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• 1997

소나무(Pinus densiflora Siebold et Zuccarini) 잎의 ethyl acetate 추출물은 세균, 효모, 곰팡이에 대하여 항미생물활성을 나타내었다. 활성물질을 solvent fractionation, silica gel adsorption column chromatography, Sephadex LH-20 column chromatography 등에 의해 정제하여 백색결정상 물질로 단리하였다. $MS,\;^{1}H-NMR,\;^{13}C-NMR$ 등의 기기분석에 의해 단리된 물질의 구조해석을 시도한 결과 benzoic acid로 동정되었다. Benzoic acid가 솔잎에서 분리, 동정된 것은 처음으로 생각되며 특히, 솔잎 생체중량 g당 0.608 mg이나 함유되어 있어, 타 식물체에 비하여 대단히 많은 양이 함유되어 있음이 확인되었다.

• 임산에너지
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• 제19권2호
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• pp.79-85
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• 2000

월악산에 소재하여 있는 소나무림을 대상으로 조사 분석함으로써 소나무림의 숲틈형성과 재생 및 천이에 관하여 다음과 같은 결과를 얻었다. (1) 월악산 소나무림을 이루고 있는 수종들로는 교목층으로 소나무와 굴참나무가 우점하고 있으며, 중층으로는 신갈나무, 졸참나무, 쇠물푸레 등의 수종이 우점하고 있다. (2) 소나무림의 숲틈형성요인으로서 고사목의 고사유형은 입목고사형이 가장 많았다. (3) 흉고직경급별 분포를 분석한 결과 소나무림은 먼저 굴참나무림으로 바뀌다가 다시 신갈나무와 졸참나무로 천이가 진행될 것으로 판단되었다. (4) 소나무 치수는 건조한 지역에서 생성된 숲틈에서만 발견되고 있어 이러한 지역에서만 환경적 극상으로서 소나무림이 유지될 가능성을 조여주고 있었다.

• 농촌계획
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• 제17권3호
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• pp.15-25
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• 2011

This paper is to contribute for management and restoration as a basic study of vegetation structure in Aemirang Hill, Nakdongjeongmaek. To verify the characteristics of vegetation structure, we set up 25 plots($100m^2$). The result of community analysis was used by TWINSPAN classification. The communities were classified 7 types i.e. Quercus variabilis community, Quercus mongolica community, Pinus densiflora community, Pinus densiflora-Quercus mongolica community, Q. mongolica-Quercus variabilis community, Quercus mongolica-Betula davurica community, Larix leptolepis community. Pinus densiflora community and Pinus densiflora-Quercus mongolica community are progressively transforming a Quercus mongolica community that is called Pinus densiflora next succession stage. Whereas the communities that has dominant Quercus variabilis and Quercus mongolica did not appear a next generation succession tree such as Carpinus laxiflora, Carpinus cordata in the under story and shrub layer. Therefore, Aemirang Hill's ecological succession was to maintain the status condition. Aemirang Hill's diversity index is 0.5738 to 0.8906. It were analyzed that diversity index was lower than other places.

• 농업과학연구
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• 제37권1호
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• pp.45-52
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• 2010

This study has been carried out to estimate carbon contents in an average 40-years-old Pinus koraiensis plantations and an average 37-years-old Larix leptolepis plantations in Gongju, Chungnam Province. Average carbon concentration in stemwood, stembark, branches, needles, and root were 54.31% in Pinus koraiensis and 53.49% in Larix leptolepis stands. Carbon contents was estimated by the equation model logWt=A+BlogD where Wt is oven-dry weight in kg and D is DBH in cm. Total carbon contents was 103.38tC/ha in Pinus koraiensis stands and 96.59tC/ha in Larix leptolepis stands. Net primary carbon production was estimated at 8.79tC/ha/yr in Pinus koraiensis stands and 11.42tC/ha/yr in Larix leptolepis stands.

• 한국식품영양과학회지
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• 제28권5호
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• pp.973-979
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• 1999

Volatile compounds from twigs, needles and sprouts in Pinus densiflora were extracted with n hexane, diethyl ether or ethanol for 24 hours, and the extracted compounds were separated and identified by gas chromatography and mass selective detector. The kinds and amount of volatile compounds extracted from three parts of Pinus densiflora were different in solvent extraction and the extraction by the modified Liken Nickerson apparatus. The contents of volatile compounds of twigs contained more than those of needles and sprouts, and the volatile compounds were extracted more in n hexane than the others. In the extraction with hexane, the main volatile compounds of twigs were 18.5% pinene, 14.5% limonene, 12.7% pinene and 3.2% myrcene. Sprouts were 16.8% limonene, 4.4% pinene, 4.3% pinene and 1.7% myrcene. Needles contained 14.7% pinene, 5.4% pinene, 2.2% limonene and 0.8% myrcene. The highest yield for pine aroma was shown in the extraction from pine twigs with n hexane, and in this extraction the amounts of pinene, pinene and limonene were 742 g, 1108 g and 922 g per gram sample, respectively.

• The Korean Journal of Ecology
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• 제25권3호
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• pp.197-204
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• 2002

본 연구는 1997년 3월부터 1998년 10월에 걸쳐 이루어졌으며, 한반도 서남해 도서의 소나무림을 대상으로 식물사회학적인 방법에 의해 군락의 유형을 분류하였다. 26개의 방형구를 선정하여 조사한 결과 본 조사 지역의 소나무림은 자금우-소나무군락과 방아풀-소나무군락으로 분류되었고, 각각의 군락은 털머위하위군락, 졸참나무하위군락 및 전형하위군락과 노간주나무하위군락, 윤노리나무하위군락 및 전형하위군락으로 구분되었다.