• Title/Summary/Keyword: 죽간

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Phenotypic, Genotypic and Environmental Correlations among Some Characters of Phyllostachys bambusoides Sieb. et Zucc. (대나무 수개형질간(數個形質間)의 상관관계(相關關係)에 관(關)한 연구(硏究))

  • Chung, Young-Gwan
    • Journal of Korean Society of Forest Science
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    • v.26 no.1
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    • pp.13-18
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    • 1975
  • This study was intended to clarify interrelations among seven characters of bamboo and their influences upon its culm-volume. The analysis of covariance was used to obtain phenotypic correlations, genotypic correlations and environmental correlations among some characters of Phyllostachys bambusoides Sieb. et Zucc., and thereby path-coefficients were calculated based on Dewey's method. The characters considered here included the breast height diameter, culm-height, clear-length, subterranean stem, number of bamboo joints, butt-end diameter and culm-volume of bamboo. Average values, standard errors, variances and standard deviations for the characters mentioned above are shown in Table 1, and phenotypic correlations, genotypic correlations and environmental correlations among seven characters are shown in Table 2, according to the results, there are highly significant relationships among lines but not among some replications. According to Table 4, heritability values in the breast height and butt-end diameters are higher than those in other characters mentioned above. On the other hand, environmental correlations among general characters appear to have lower values than phenotypic and genotypic correlations do. It also appears that the butt-end diameter and breast height diameter are highly correlated with the culm-volume of bamboo. The path-coefficients of individual characters to the culm-volume of bamboo are computed from the correlations (Table 4) and presented in Figure 1 and Table 5, where it could shown the direct and indirect effects on the bamboo culm-volume of each character.

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Biomass, Net Production and Nutrient Distribution of Bamboo Phyllostachys Stands in Korea (왕대속(屬) 대나무림(林)의 물질생산(物質生産) 및 무기영양물(無機營養物) 분배(分配)에 관한 연구(硏究))

  • Park, In Hyeop;Ryu, Suk Bong
    • Journal of Korean Society of Forest Science
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    • v.85 no.3
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    • pp.453-461
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    • 1996
  • Three Phyllostachys stands of P. pubescens, P. bambusoides and P. nigra var, henonis in Sunchon were studied to investigate biomass, net production and nutrient distribution. Five $10m{\times}10m$ quadrats were set up and 20 sample culms of 2 years and over were harvested for dimension analysis in each stand. One year old culms and subterranean parts were estimated by the harvested quadrat method. The largest mean DBH, height and basal area were shown in P. pubescens stand, and followed by P. nigra var. henonis stand and P. bambusoides stand. There was little difference in accuracy among three allometric biomass regression models of logWt=A+B1ogD, $logWt=A+BlogD^2H$ and logWt=A+BlogD+ClogH, where Wt, D and H were dry weight, DBH and height, respectively. Analysis of covariance showed that there were significant differences in intercept among the linear allometric biomass regressons of three Phyllostachys species. Biomass included subterranean parts was the largest in P. pubescens stand(103.621t/ha), and followed by P. nigra var. henonis stand(86.447t/ha) and P. bambusoides stand(36.767t/ha). Leaf biomass was 6.3% to 7.8% of total biomass in each stands. The ratio of aboveground biomass and subterranean biomass in each stand was 1.87 to 2.26. Net production included subterranean parts was the greatest in P. pubescens stand(6.115t/ha/yr), and followed by P. nigra var. henonis stand(5.609t/ha/yr) and P, bambusoides stand(3.252t/ha/yr). The highest net assimilation ratio was estimated in P. pubescens stand(2.979), and followed by P. nigra var. henonis stand(2.752) and P. bambusoides stand(2.187). Biomass accumulation ratio of each stand was 2.679 to 5.358. Concentrations of N, P and Mg were the highest in leaves, and followed by subterranean parts, and culms+branches in all three species. Concentration of Ca was the highest in leaves, and followed by culms+branches, and subterranean parts in all three species. The difference in biomass among three species stands was caused by their culm size, leaf biomass, net assimilation ratio, and efficiency of leaves to produce culms.

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Estimation of Aboveground Biomass and Belowground Nutrient Contents for a Phyllostachys pubescens stand (맹종죽(孟宗竹) (Phyllostachys pubescens) 임분(林分) 내(內) 지상부(地上部) 생체량(生體量) 및 지하부(地下部) 양분(養分) 함량(含量) 추정(推定))

  • Hwang, Jaehong;Chung, Young-Gyo;Lee, Sang-Tae;Kim, Byung-Bu;Shin, Hyun-Cheol;Lee, Kyung-Jae;Park, Kyu-Jong
    • Journal of Korean Society of Forest Science
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    • v.94 no.3 s.160
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    • pp.161-167
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    • 2005
  • Above and belowground biomass for Phyllostachys pubescens was determined in Jinju, Gyeongsangnam-do. Regression analyses of dry weights of culms, foliages, and twigs versus diameter at breast height were used to calculate regression equations of the form of log Y = a + blogX. Total aboveground biomass for Phyllostachys pubescens was 69.7 ton/ha and rhizomes and roots biomass were 13.7 ton/ha and 7.5 ton/ha, respectively. Culms account for about 60% of total aboveground biomass. The aboveground biomass of each component was decreased in the order of culms>foliages>twigs. As diameter at breast height grew thicker, the proportion of culms to total aboveground biomass increased. The proportion of dry weight of culms to green weight gradually increased with height in a bamboo tree and ages. Nutrients (kg/ha) of litter layer were distributed as follows: N(45.1), Ca(17.3), K(6.1), Mg(3.6), P(3.5) and Na(0.7). Nitrogen and K were given much weight in total nutrients of rhizomes and roots. These results will be useful in measuring carbon stock and drawing up management plan to increase it for Phyllostachys pubescens stand.

출토문헌에 보이는 『논어(論語)』 고찰 - 정주(定州) 한묘(漢墓)와 돈황(敦煌)에서 발견된 『논어(論語)』 「술이(述而)」편을 중심으로 -

  • Park, Jae-Bok
    • (The)Study of the Eastern Classic
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    • no.36
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    • pp.135-161
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    • 2009
  • "논어"는 진시황(秦始皇)의 "분서갱유(焚書坑儒)"로 크게 손실되었다가 한대(漢代)에 이르러 크게 "노론(魯論)", "제론(齊論)", "고론(古論)" 등 3개의 다른 판본이 출현하였다. "노론(魯論)"과 "제론(齊論)"은 각기 다른 사승관계에 의해 전수되어 오다 장우(張禹)에 의해 두 본이 하나로 합쳐지게 되었고, 이후 세상에서 널리 읽혀지게 되었다. 20세기(世紀) 말, 돈황(敦煌)과 토노번(吐魯番)에서 수많은 당사본(唐寫本)들이 발견되었는데, 그 중에 정현(鄭玄)의 "논어주(論語注)"와 하안(何晏)의 "논어집해(論語集解)" 등이 포함되어 있었다. 또한 1973년 서한(西漢) 중산(中山) 회왕(懷王) 유수(劉修)의 무덤에서도 죽간(竹簡)에 쓰여진 "논어(論語)"가 출토되었다. 본고에서는 현재 "논어" 판본 중에서 가장 이른 시기에 속하는 이들 3개의 출토문헌 자료와 전래본인 주자(朱子)의 "논어집주(論語集注)"의 비교를 통하여 한위(漢魏)시기 이래로 여러 "논어"본들이 정리되어가는 과정과 그 과정에서 파생된 제반 문제들을 살펴보았다. 이를 통하여 여러 판본들의 공통점과 차이점들을 살펴볼 수 있었고, 또한 한나라 이후 꾸준히 논란이 되어 왔던 내용과 이를 바탕으로 전래본에서 수정 보완된 부분들을 발견할 수 있었다. 기존 한국의 "논어" 연구는 후대의 전래본을 중심으로 그 철학적인 사상을 분석하는데 편중되어 왔다. 이들 연구는 상당부분 후대에 가미된 글자와 내용을 논어의 원문으로 오인하고, 이를 통해 추론해 낸 결론들도 원래의 사실과 거리가 있을 수밖에 없었다. 그러므로 우리는 20세기 이래로, 고고학적 발굴 성과에 힘입어 지하에서 출토되는 새로운 자료들에 대해 주위를 기울일 필요가 있다. 특히 최근에 출토되는 간독(簡牘)자료에 수많은 경전관련 자료들이 포함되어 있다. 이러한 일차 자료들을 정리분석하고 이를 토대로 그 안에 내재되어 있는 경학, 철학, 역사적인 의미 등을 추론해 낸다면 좀 더 근본적으로 고대사회의 정신문명을 이해할 수 있으리라 본다. 따라서 본 연구는 이러한 방향에서 "논어" 연구의 올바른 토대를 마련하기 위한 기초적 작업으로서의 의의가 있다고 하겠다.

An Analytical Study on the Growth Factors of Bamboo Culm by the Multivariate Analysis (다변량분석(多變量分析)에 의(依)한 죽간(竹稈)의 성장해석(成長解析)에 관(關)하여)

  • Lee, Kwang Nam;Cha, Gyung Soo
    • Journal of Korean Society of Forest Science
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    • v.76 no.4
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    • pp.338-347
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    • 1987
  • The research was carried out to investigate the related phenomena, the latent structures and synthetical characteristics in various growth factors of Phyllostachys bambusoides Sieb. et Zucc. growing at Damyang gun, Chollanamdo, using multivariate analysis. 1. By synthetical characteristics in canonical correlation between height-growth factor group and diameter-growth factor group, the former was determined by the culm height ($x_1$), and the latter by the. diameter of the largest internode($x_7$). And for those between quantitative growth factor group and qualitative growth factor group, the former was determined by the surface area($x_{10}$), and the latter by the diameter of the largest internode ($x_7$). 2. The ten growth factors of bamboo culm were simplified by two principal components on the basis of accumulated proportion aimed at 90%. The first principal component($Z_1$) as a "size factor" showed high correlation with growth factors except eye-height diameter($x_5$). The second principal component($Z_2$) as a "shape factor" showed high correlation only with $x_5$. 3. The bamboo culm, and the latent phenomenon between their growth factors could be determined by two common factors showing high communality(94.16%). The ten growth factors can be grouped into two attribute factors: quantity and quality. 4. The bamboo culms can be classified into five types: total, volume, shape-quality, inferior and middle.

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A Study on Book Distributions in the Three Kingdoms Period (삼국시대 서적 유통에 관한 연구)

  • Song, Il-Gie
    • Journal of Korean Library and Information Science Society
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    • v.44 no.1
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    • pp.227-259
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    • 2013
  • This study objected books having been imported from China until the 7th century when unification was made among the three kingdoms together with distributed books by Korean nationals after compiling them, and clarified main characteristics by investing their whole pictures. The three kingdoms had imported books from China from the 5th century, and made them reflect to the enactment of laws and regulations, introduction of educational system, promotion of learning, international diplomacy, and national history compilation etc for settling down the ancient nation. And Buddhism having been transmitted to the Korean Peninsula in the late 4th century was nothing more than simple handing-down Buddhist scriptures in early stage, but teaching and learning developed into levels of forming new sects after the 7th century when the complete collection of Buddhist Sutras was introduced, so the study paid attention to a fact that full-scale compilation of our collection literature was appearing. As the result of analyzing the phenomena of book distributions till the 7th century when the three kingdoms were unified in this way, transmitted books showed concentrating aspects to confusion and Buddhist literature mainly, and books having been compiled by Korean nationals themselves appeared high in history books of the three kingdoms and collection literatures of Buddhism, and also a fact was grasped such like Sohak books required for basic learning and professional ones on science fields were imported from other countries. Most books having been distributed in the three kingdoms at that time were imported from the 6th century really, so majority of them seemed to be supplied with manuscript forms. However, this study considered the possibility of using bamboo scriptures on history books such as Liugi(留記) and Seogi(書記) etc that had been compiled before the 5th century at the three kingdoms.

A Comparative Study on the Types of Vascular Bundle Sheath of Sasa with Those of Bambusa (Sasa와 Bambusa속(屬)의 유관속초형(維管束鞘型)에 의(依)한 비교연구(比較硏究))

  • Kim, Jai-Saing
    • Journal of Korean Society of Forest Science
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    • v.39 no.1
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    • pp.35-46
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    • 1978
  • The morphological characteristics of vascular bundle sheath occurring on the culm wall were investigated by using many species of Bambusa and Sasa in order to test new classification method for endomorphological charateristics of Bamboos. The results obtained were as follows. 1. As for the thickness of the culm wall in the culm, it was shown that the culm wall of the Bambusa becomes thinner in propertion to its nearness to the upper part of the tree, but no distinctive difference appeared in the Sasa. 2. It was shown that many species of Bambusa has a, b types but the Sasa had a' type and had a, b types. 3. It was shown that many species of Bambusa had e', h, and i types but the Sasa had not them and both of species had not f type. 4. It was shown that many species of Bambusa had c, d, e, and g types, but the Sasa had c, d, and e types and had not g type. 5. In the classification of Bambusa and Sasa, The method of the physiological classification was more effective than test of external observation, and it will encourage further study.

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한간 "산수서" 와 "구장산술" 의 비교

  • Cha, Jong-Cheon
    • Communications of Mathematical Education
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    • v.15
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    • pp.273-280
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    • 2003
  • 1983년 말 중국 형주시 소재 강릉장가산 247호 묘에서 죽간의 형태로 출토된 ${\ulcorner}$산수소${\lrcorner}$ 는 그것이 엮어진 시점이 유휘의 ${\ulcorner}$구장산술${\lrcorner}$ 보아 최소한 450년 가량이나 거슬러 올라간다는 점에서 동야수학사의 기원을 크게 앞당기게 하는 막중한 의의를 지니는 문서가 아닐 수 없다. 그러나 석문 자체가 최근 들어와서야 겨우 공개되었을 뿐, 현재로서는 자료에 대한 평가와 내용 분석은 물론, 변역마저도 제대로 이루어지지 못한 상태에 있다. 이 글은 ${\ulcorner}$산수서${\lrcorner}$${\ulcorner}$구장산술${\lrcorner}$ 의 내용을 배교하여 ${\ulcorner}$산수서${\lrcorner}$ 의 특징을 밝히는 동시에 동양수학의 초창기 발달의 궤적을 더듬어 보려는 시도이다. ${\ulcorner}$산수서${\lrcorner}$ 는 '상승(相乘)'에서 '이전(里田)'까지 이어지는 70개 제명(題名)하에 서술되어 있는데, 제명들은 주제를 나타내는 것과 산법을 나타내는 것을 혼재하는 것으로 나타난다. 내용 가운데에는 '여직(女織)', '우시(羽矢)', '소광(少廣)' 등이 문제처럼 ${\ulcorner}$구장산술${\lrcorner}$ 의 그것들과 기본적으로 같거나 유사한 것들이 다수 발견되어 고대수학 전통의 연속성을 엿볼 수 있게 하지만, 동시에 의료수가 문제인 '의(醫)'처럼 ${\ulcorner}$산수서${\lrcorner}$에서만 발견되는 것들도 더러 눈에 띈다. ${\ulcorner}$산수서${\lrcorner}$${\ulcorner}$구장산술${\lrcorner}$ 사이에 이루어진 수학 발달은, 이를테면, 제급근 사이에 있어서 전자의 경우에는 $\sqrt{240}$$15\frac{15}{31}$로 계산한 데서도 드러나듯이 보간법에 의존한 반면, 후자의 경우에는 온답을 제시하는 데 하등의 어려움을 겪지 않았다는 차에서도 확인된다.

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A Study on the Morphological Observation of the Vascular Bundle Sheath in Sasa (Sasa류(類)의 유관속초관찰(維管束鞘觀察)에 의(依)한 형태학적(形態學的) 연구(硏究))

  • Kim, Jai Saing
    • Journal of Korean Society of Forest Science
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    • v.47 no.1
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    • pp.27-36
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    • 1980
  • To establish an easy classification method of bamboos observation of the shapes of vascular bundle sheath of Sasa, one of the important natural resources available in Korea, was made on the basis of vascular bundle sheath of bamboo culms because Sasa has a unique vascular bundle sheath as discussed by Grosser and Liese et al. Morphological characteristics of Saw observed are summarized as follows: 1. The thickness of culm wall showed no distinctive difference between upper and low parts of culms of Sasa grown at the ground level. 2. In relation to the taxonomical classification of bamboo, Sasa showed a and a' type but did not e.f.h. and e' type was not identified. 3. Two typical types of bamboo vascular bundle sheath, i.e. b.c.d.e. and g type and d and e type, were found in Sasa but sometimes b.c.g. type was not observed. 4. The results mentioned above seem to be an important key for classification of Sasa.

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The study of the Huang-Lao philosophy in the Wenzi (『문자(文子)』의 황노사상(黃老思想)에 대한 연구)

  • Kim, Yea-ho
    • The Journal of Korean Philosophical History
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    • no.39
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    • pp.169-194
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    • 2013
  • The Wenzi is the material criticized about the relation bamboo-slip literature and current literatures in the academic world. If is true or not, because we don't know the author and the records accurately. In this study, to sublate the researching method of HuangLao philosophy that vogues the boundary between Zajia, on the basis of volumes with bamboo-slip literature and the present literatures shared, I discuss the peculiarity of Wenzi HuangLao philosophy, comparing Dao-theory of Daoist. The Wenzi is HuangLao philosophy of Rujia pattern that doesn't understand as the Dao-Fa school. And its origin is Laozi philosophy. It accepts Zujia philosophy, putting first in importance about Rujia philosophy. In this study, the origin of the Wenzi is Laozi philosophy theoretically, but I discuss that the Wenzi is the early literature forming Rujia pattern HuangLao philosophy. And the Wenzi tries to combine the theory of Rujia in the social political category.