• 제목/요약/키워드: the pine

검색결과 2,567건 처리시간 0.035초

Phosphorus and Base Cation Inputs through Litterfall Components in Pine Forests after Tree Removal Due to Pine Wilt Disease Disturbance

  • Baek, Gyeongwon;Kim, Seongjun;Kim, Choonsig
    • 한국산림과학회지
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    • 제108권3호
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    • pp.296-301
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    • 2019
  • This study was conducted to measure litterfall and nutrient (P, K, Ca, Mg) inputs under varying degrees of disturbance by pine wilt disease in pine forests in southern Korea. Litterfall was collected to evaluate nutrient responses at different intensities of disturbance (various levels of basal area) by pine wilt disease across 2 years. Phosphorus, Ca, and Mg concentrations in needle litterfall were positively correlated (p < 0.05) with decreased disturbance intensities (increased basal area) depending on the time of sampling, whereas the nutrient concentrations in other litterfall components (branches, bark, reproductive organs, and miscellaneous litterfall) were not significantly correlated (p > 0.05) with the intensity of pine wilt disease disturbance. Dry weight and nutrient inputs through litterfall components decreased linearly with increasing intensity of disturbance by pine wilt disease (p < 0.05), except for the nutrient inputs of branch (K, Ca, Mg) and reproductive organ (K, Ca) litterfall. These results indicate that decreased litterfall across different levels of disturbance may be related to the reduced soil nutrients in pine wilt disease forests.

송이버섯과 양송이 분말을 첨가한 데미글라스 소스의 품질 특성 (Quality Characteristics of Demi-glace Sauce with Pine mushroom and mushroom Powder Added)

  • 최수근
    • 한국조리학회지
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    • 제13권4호
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    • pp.119-127
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    • 2007
  • Pine mushroom is excellent for its unique smell, nutrients and functional factors. The quality characteristics of Demi-glace sauce made from pine mushrooms that have not been used despite their value as good ingredients and mushrooms that have been added to various kinds of sauce were examined by differing pine mushroom and mushroom powder in stock. The more pine mushroom and mushroom powder was added, the content of minerals increased; however, the content of moisture decreased. Overall, viscosity was increased. The content of each mineral varied in proportion to pine mushroom and mushroom powder contents level. Sensory evaluation of pine mushroom added to demi-glace sauce showed difference in sweetness, savory taste overall. 0.2% addition of sweetness, 0.3% addition of savory taste, 0.2% and 0.3% addition of overall acceptability appeared as the best estimation. Specially, 0.2% addition was the highest in salty taste and color. As the two mushroom powder contents was increased, tastes of demi-glace sauce were not increased; rather, the appropriate amount of addition existed.

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송화분이 흰쥐의 간장에 미치는 영향(II) (Effect of Pine Pollen on Rat Liver(II))

  • 한준표
    • 동아시아식생활학회지
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    • 제10권3호
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    • pp.200-207
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    • 2000
  • This study was conducted to investigate the nutritional constituents of pine pollen and the effects of pine pollen on rat liver. Using the chemical components analysis method, the constituents of pine pollen are crude protein(13.97%). crude lipid (6.50%), crude ash (3.25%). Detectable in pine pollen are main fatty acids and non-essential amino acids such as glutamic acid and aspartic acid such as oleic and linoleic acid and 18kinds of amino acid including essential amino acids. The effects of pine pollen on rat liver fed with a high fat diet for 6 weeks showed significant decrease in total lipid and triglyceride as compared with the group fed with a fat diet only. Total cholesterol content decreased by 20.33%. No significant difference was found in total protein content of each group. Pine pollen Is efficacious in preventing geriatric diseases (arteriosclerosis, hyper-lipidemia and cardiovascular system-related diseases).

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방사성 추적자에 의한 솔잎혹파리 방제용 살충제 phosphamidon의 소나무 수간이동 구명 : I. 소나무 품종 및 계절별 이행 (Elucidation of the translocation of phosphamidon used for the control of pine leaf gall midges (Thecodiplosis japonensis Uchida et Inouye) in the trunks of pine trees by means of a radiotracer. Part 1. Translocation as affected by pine tree species and the treated season)

  • 이재구;이형래;경기성;변병호
    • Applied Biological Chemistry
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    • 제36권6호
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    • pp.463-468
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    • 1993
  • 솔잎혹파리(Thecodiplosis japonensis Uchida et Inouye) 방제용으로 소나무의 수간에 주입된 침투성 살충제 phosphamidon(2-chloro-2-diethylcarbamoyl-1-methylvinyl dimethyl phosphate)의 이행 및 분포를 구명하기 위하여 $[vinyl,\;carbonyl-^{14}C]phosphamidon$을 약 10년생의 적송과 해송에 각각 수간주사하였다. 이 약제의 최고이행속도는 적송(Pinus densiflora Sieb. et Zucc.)과 해송(Pinus thunbergii Parl.)에서 각각 약 10 cm/hr(7월)와 2 cm/hr(12월)이었다. 처리된 방사능은 하계의 적송에서는 75일까지 일정한 수준을 유지하였으나 동계의 해송에서는 150일까지 유지하였다. 본 약제가 살충가능한 농도로 top에 도달하는데 걸리는 기간은 적송(7월)에서는 3일 이내인 반면 해송(12월)에서는 15일 이내이었으며, 그 이행정도는 약제처리시기 및 수종에 의하여 영향을 받았다. 솔잎에 잔류하는 phosphamidon과 그 대사산물은 methanol로 잘 추출되었으며, 솔잎시료의 methanol 추출액을 autoradiography한 결과 phosphamidon은 소나무내에서 신속히 분해되어 7일 내에 약 80% 정도가 분해되었다.

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교외지역에서 소나무 잎과 토양 중 PCBs의 농도 특성 (Concentration Characteristics of PCBs in Pine Needle and Soil at Rural Area)

  • 신은상;여현구
    • 환경위생공학
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    • 제21권1호
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    • pp.1-11
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    • 2006
  • This study was to investigate concentration characteristics of atmospheric PCBs in soil sample and pine needle at rural area. Profiles of PCB congener detected in pine needle and soil sample have a difference that low molecular PCBs mainly existed in pine needle, whereas high molecular PCBs were mainly existed in soil sample because of their different vapor pressure and octanol-air partitioning coefficient($K_{OA}$) of each congeners. Correlation coefficients(r) of PCB congeners simultaneously detected in soil and pine needle were significant (r>0.71, p<0.01), which showed that PCB congeners patterns of atmosphere could be estimated in using pine needle and soil sample indirectly. The contributions(%) of higher molecular PCBs(>penta-CB) to total PCBs in soil sample were higher than those of pine needle and the contribution of lower molecular PCBs(

소나무류의 솔잎혹파리에 대한 저항성과 침엽내(內) Phenolic Acid의 농도 (Resistance to Pine Gall-midge and Phenolic Acid Content in Pine Needles)

  • 엄태진;손두식;이상우;서재덕
    • Journal of the Korean Wood Science and Technology
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    • 제26권3호
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    • pp.33-40
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    • 1998
  • The phenolic acids in needles of five pine species such as Pinus densiflora, P. thunbergii. P. virginiana. P. rigida. and P. koraiensis were analyzed seasionally (March, June, September and December) in order to investigate the resistant factors against pine gall-midge(Thecodiplosis japonensis Uchida et Inouye). The interrelation of resistance to pine gall-midge and the content of phenolic acids in pine needles was investigated in the artificial hybride pine species. The contents of salicylic acid in susceptible species (P. densiflora and P. thunbergii) to pine gall-midge which watered with salicylic acid solution in a pot was determined. The results can be concluded as follows, 1. There was a little change in total phenolic constituents of resistant and susceptible pines seasonally. The each content of benzoic acid, salicylic acid and p-hydroxybenzoic acid in June was the highest through four seasons. 2. In June, resistant species showed higher content of salicylic acid than susceptible species, while the content of gallic acid was the highest in December. 3. Among the 21 artificial hybrids(P. densiflora ${\times}$ P. virginiana. P. thunbergii ${\times}$ P. virginiana), the hybrides of the higher salicylic acid content showed the lower rate of pine gall formation. 4. Pine gall formation of the susceptible species which were watered with salicylic acid solution remarkably decreased.

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단판 적층성형 학생용 책상.의자의 제조적성 (Feasibility of Manufacturing Desk and Chair with Curved Veneer Lamination)

  • 서진석;박종영;한기만
    • 한국가구학회지
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    • 제16권2호
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    • pp.59-65
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    • 2005
  • As physical condition of students improves, there is a need to develop human body-friendly desk and chair for students. In this study, desks and chairs were manufactured with curved veneer lamination under high frequency heating and pressing, using ten wood species such as Japanese red pine, Korean pine, pitch pine, Japanese larch, yellow poplar, black locust, oak, radiata pine, beech, and birch. The performance of these products were evaluated. The results obtained were summarized as follows; With high frequency heating, the turned lamination of veneers with full size sheet ($3{\times}6\;feet$) prepared by rotary lathe peeling was successfully applied for making the members of desk top, leg frames of desk and chair. Bending strengths of desk tops were relatively greater for yellow poplar, black locust and red pine, which were similar to those of beech and birch. Bending strengths of desk legs were classified into greater species group (red pine, yellow poplar, larch) and lower species group (radiata pine, Korean pine, pitch pine). Compressive strengths of chair legs in parallel direction to the lamination were greater in black locust and larch. On the other hand, differences between outer and inner gap at the top and drawer bottom of desk top were rather larger for the laminations of birch and beech, and less for those of yellow poplar and pitch pine, showing greater stability of open drawer space. In results, yellow poplar, larch, pitch pine and red pine showed good appearance and strength properties at the curved veneer lamination. Accordingly, it was believed that these domestic woods were able to substitute for birch which was being imported for the use of veneer-laminates type furniture.

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송절편을 첨가한 송이주의 향기 성분 (Flavor Compounds in Pine Mushroom Liquor Added with Pine Tree Chips)

  • 윤정아;신인웅;박은희;이하연;김명동
    • 한국미생물·생명공학회지
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    • 제48권3호
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    • pp.316-321
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    • 2020
  • 송이버섯이 첨가된 전통주를 제조한 후 송절편을 첨가하여 첨가량과 숙성 기간에 따른 향기 성분의 변화를 기체 크로마토그래피 질량분광법을 통해 조사하였다. 송절편을 첨가하지 않은 대조구에서는 총 3종의 향기 성분이 검출되었으나, 송절편을 첨가한 송이주에서는 총 15종의 향기 성분이 검출되었다. 송절편을 5% 첨가한 실험구에서 송이버섯 특유의 향기 성분인 β-fenchyl alcohol과 2-octanol, methyl cinnamate은 숙성기간 동안 상대적인 함량이 증가하여 8주 후에는 각각 67.57%, 2.14%와 0.94%를 나타냈다. 주성분 분석 결과 송절편 첨가에 의한 β-fenchyl alcohol의 상대적 함량 증가가 송이주의 향미 특성에 영향을 미치며, 송이주의 향미 특성은 송절편의 첨가량 보다 숙성 기간에 의해 더 큰 영향을 받는 것으로 판단된다.

소나무 상징성에 대한 헤어아트 연구 (The Study of Hair Art about the Symbolism of the Pine)

  • 채선숙;이중민
    • 한국의류산업학회지
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    • 제9권5호
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    • pp.538-544
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    • 2007
  • We usually try to accomodate ourselves to our nature surroundings interacting with nature. There fore I've decided to apply nature materials, esp. the pine to Hair Art as a way of expressing our feelings from Nature. 'Hair Art' is a follow-up study based on the various artistic point of view. There has been various works of 'Hair Art' with nature materials. However, it is rare to see a work of 'Hair Art' with the pine. That's why I've decided to study more about this. This study is a new experiment in 'Hair Art' against a conventional idea "Hair Art values practicability." Therefore, the primary goal of this study is to do much for the cause of learning in 'Hair Art' and encourages some development of 'Hair Art' industry. I've researched an image of a pine tree in art of Joseon Dynasty and contemporary art. Then I've tried to apply the image to a work of 'Hair Art'. First of all, in a view of expression technique for the symbolism of the pine, the artists in Joseon Dynasty drew pictures of a pine tree with a paintbrush but the modern artists make a new attempt from the thought of Modernism. We can find it in some photos. Next, to express traditional oriental idea such as 'unconventional and elegance', comtemporary artists chose the symbolism of the pine tree as an object of their works like pen and ink sketches from the thought of Modernism. Third, in a fusion style picture which contains features of both oriental paintings and western paintings and in a sexualism style picture that depicts a harmony of a male and a female as a shape of a pine, we can find colorful images of a pine tree and Their figurative beauty in art. Those are another symbols of the pine. In conclusion, the implication of the pine tree still hasn't changed even there are differences of drawings of pine tree in the past and the present. I've tried to combine these symbolic ideas of the pine with 'Hair Art' and made 5 hair styles. Throughout the process of researching this topic which is 'The Study of Hair Art Using The Symbolism of The Pine', I've realized that pine trees make it possible to express intrinsic tough spirit of human being and abundance in color and figurative beauty in art. I hope this can contribute to the field of 'Hair Art' and would become an important educational resource for further study.

송이 감염묘를 이용한 송이 발생 및 발생환경 분석 (Analysis of Environment and Production of Tricholoma matsutake in Matsutake-infected Pine Trees)

  • 가강현;김희수;허태철;박현;전성민;유림;장영선
    • 한국균학회지
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    • 제46권1호
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    • pp.34-42
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    • 2018
  • 송이는 매우 고가의 버섯이기 때문에 세계 여러 나라에서 인공재배를 시도하고 있다. 지금까지 야외 조건에서 인공적으로 송이 발생을 성공시킨 예는 송이 감염묘를 이용한 방법뿐이다. 국립산림과학원은 2000년부터 송이 감염묘 방법을 다시 연구하여 2010년과 2017년에 각각 송이 발생 재현에 성공하였다. 이 결과는 송이 감염묘를 이용하여 송이가 인공재배 가능하다는 것을 입증한 것이며, 세계 최초로 송이 인공재배가 성공한 사례가 된다. 송이 감염묘 이식 후 6년 6개월만인 2010년 10월에 송이가 처음 발생하였다. 그리고 또 다시 송이 감염묘 이식 후 13년 5개월 또는 15년 5개월이 경과된 시점인 2017년 9월에 송이 5개가 재 발생하였다. 송이 감염묘 소나무와 발생한 송이 사이의 거리는 12 cm (6.6년), 90~115 cm (13.5년), 95 cm (15.5년)으로 나타났다. 송이 버섯 발생은 지온이 $19^{\circ}C$이하로 떨어진 이후 13~16일 사이에서 관찰되었다. 결론적으로 송이 감염묘법은 송이를 인공재배 할 수 있는 현재까지의 유일한 방법으로, 앞으로도 송이 자실체 발생에 영향을 끼치는 환경 인자들을 지속적으로 연구할 필요가 있다.