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한국산 수국과 일부 수종의 천공을 지니는 방사조직 구성세포
엄영근,정연즙 ( Young Geun Eom,Youn Jib Chung ) 한국산림과학회 1997 한국산림과학회지 Vol.86 No.3
Perforated ray cells are identified for the first time in the Korean species of Deutzia glabrata, Deutzia sieboldiana, Hydrangea paniculata, and Philadelphus schrenckii that belong to Hydrangeaceae but not observed in Deutzia gracilis. These ray cells have simple to scalarifrom perfora-tions in Deutzia glabrata which have vessel elements with scalariform perforations, and have scalariform to reticulate perforations in Deutzia sieboldiana, Hydrangea paniculata, and Philadelphus schrenckii which have vessel elements with scalariform perforations. Thus, the perforations of ray cells in Korean Hydrangeaceae appeared not to be exactly the same as the types of scalariform perforation plates in the vessel elements of same wood .
기흥 농서리유적에서 발굴된 신석기시대 목탄의 목재 식별
엄영근 ( Young Geun Eom ),허광수 ( Guang Zhu Xu ) 한국목재공학회 2010 목재공학 Vol.38 No.4
기흥 농서리유적에서 발굴된 신석기시대의 것으로 추정되는 목탄 8점을 대상으로 주사전자현미경 기법을 이용하여 수종 식별을 실시하였다. 그 결과 모두 활엽수인 것으로 밝혀졌는데 6점이 참나무속의 졸참나무류, 1점이 참나무속의 상수리나무류 그리고 나머지 1점이 자작나무류인 것으로 식별되었다. 이러한 수종 구성은 온대 내지난대 기후 지역이었음을 나타내는 것으로 여겨졌다. Wood identification was conducted for the 8 Neolithic charcoals excavated at Giheung Nongseori Ruins through scanning electron microscopy. They were all identified as hardwood: 6 and 1 were found to be Prinus section and Cerris section of subgenus Lepidobalanus under genus Quercus, respectively, and the remaining 1 to be genus Betula. This species composition was thought to indicate the temperate to warm temperate climate region.
한국산 장미과 활엽수재의 천공을 (穿孔) 지니는 방사조직 세포
엄영근(Young Geun Eom),정연집(Youn Jib Chung) 한국산림과학회 1995 한국산림과학회지 Vol.84 No.4
Perforated ray cells are recorded far the first time in the Korean hardwoods of Rosa multiflora, Rosa multiflora var. platyphylla, Rosa rugosa. Spiraea cantoniensis, and Stephanandra incisa belonging to the family Rosaceae. The perforated ray cells have simple perforations, which are identical with the types of perforation plates in the vessel elements of same wood.
엄영근(Young Geun Eom),이필우(Phil Woo Lee) 한국산림과학회 1989 한국산림과학회지 Vol.78 No.3
A tree of Ailanthus altissinza Swingle was fastened with a plastic band, 19mm wide, around the stem 180㎝ above ground level and was left to grow under this condition for one year, By removal of this band the tumorous tissue gradually developed and the tree bearing distinct tumorous tissue, an overgrowth surrounding the stem, was harvested two years after the band removal. For the investigation of this tumorous part and its comparison with adjacent normal parts in the anatomical features of individual elements, the tumorous part and parts directly and 40㎝ above and below the tumorous part were obtained from the tree. The tumor wood having remarkably wider growth increment occurred in the 3rd growth ring the first year after removal of the fastened band, and the barrier zone which delimited the discolored wood from the normal-colored wood inwards appeared u1 the intra-2nd growth ring produced during the fastened period in the tumorous part and the false ring-like zones equivalent to barrier Zone were shown in the normal-colored 2nd growth rings of the parts directly and 40㎝ above and below the tumorous part, as well. The tumor wood, the 3rd growth ring, and proportion of the 2nd growth ring formed after barrier zone is the tumorous part shared common characteristics in the irregular growth ring boundary, misshapen and shorter individual fibers and vessel elements, and large ray widths and heights. The springwood pores were smaller in diameter in the tumor wood, and the larger radial and smaller tangential diameters of summerwood solitary pores and individual pores consisting of pore multiples in proportion of the 2nd growth ring formed after the barrier zone were transformed into near-isodiametric in the tumor wood, the 3rd growth ring, in the tumorous part. Only in proportion of the 2nd growth ring formed after the harrier zone were transformed into near-isodiametric in the tumor wood, the 3rd growth ring, .n the tumorous part. ray densities greatly increased. And the massive tumor wood was caused not by cell size but by cell number because the radial and tangential diameters of fibers in the tumor wood, the 3rd growth ring, in the tumorous part were not sufficiently different from those in the same aged growth rings of the directly and 40㎝ above and below the tumorous part.
인위적인 결체에 의해 형성된 아까시나무 수간의 (樹幹) 종양재에 (腫瘍材) 관한 조직특성
엄영근 ( Young Geun Eom ) 한국산림과학회 1991 한국산림과학회지 Vol.80 No.4
A tumorous wood formed in a stem of Robinia pseudoacacia L. by steel wire fastening was investigated and compared with normal wood in the anatomy of histological aspect. The tumorous wood appeared to differ from normal wood in irregular orientations of some pores, most wood fibers, and rays deviated from normal direction, somewhat radially elongated pores on cross surface, occasionally distorted wood fiber tips between rays on radial surface, large ray width and height, commonly entangled arrangement of wood fibers on radial surface, frequent occurrence of pore multiples in the latewood, frequenr occurrence of gelatinous fibers, and dark gummy substances partially enclosed in the lamina of wood fibers, rays, and axial strand parenchymas.