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      • 인공위성영상과 NDVI를 이용한 피복분류 : 동국대학교 운길산연습림을 중심으로 Focus on Mt. Ungil Experiment Forests belong to Dongguk University

        원명수,서정수,김창호 동국대학교 생명자원과학대학 연습림 2000 연습림논문집 Vol.- No.6

        Recently, Satellite image data is applied in many fields. Spatially, NDVI(Normalized Difference Vegetation Index) is widely using as a indicator for vegetation environment assessment and utilized to measure quantities of forest resources and vegetation vitality. In this study, it is introduced to perform land use classification for each land cover condition and NDVI using Landsat-5 Thematic Mapper imagery data acquired in 1997. Also this study is aimed at organizing base data to manage and use forest rationally with focus on Mt. Ungil Experiment Forest belong to Dongguk University in Namyangju, Kyounggi Province. Land cover is classified into total seven categories as water body, urban area, barren area, agriculture area, grass land, forest and etc.

      • 雲吉山 演習林의 自然休養林 造成에 關한 硏究 : 自然環境 및 人文社會環境을 中心으로 With Focus on Natural and Cultural Environment

        金峰柱,辛壽哲,尹和榮 동국대학교 생명자원과학대학 연습림 1995 연습림논문집 Vol.- No.4

        The study was carried out to investigate the natural and cultural environment, the actual condition for the utilization, the propriety of preparation for recreation forests on experiment forests of Dongguk univ. in Mt. Ungil located at eastern area of Seoul and central parts of Kyunggi Province. The results are as follows: 1. As this area consists of beautiful landscape and famous temples such as Sejungsa and Soojongsa, visitors are increasing every year. Therefore the area showed as much visiting popluation of 5,840 man in the same period as those of 6,279 men during May∼August 1993(vacation season) of the adjacent place, Mt.Chungye which were prepared for natural recreation forest facilities. 2.This area is composed of diverse woody plants;52 Families, 110 Genera, 196 Species by Lee in 1984 and 23 Orders. 45 Families, 209 Species by Kim & Lee in 1981, which deserve to possess almost all the representative decidous broad leaf trees of middle temperate zone in Korean, medicinal plants of 15 Orders, 28 Families, 52 Species, birds 10 Orders, 26 Families, 67 Species including Brown hawk owl as a natural monument, mammalia of 11 Families, and amphibiaㆍreptile of 12 species. 3. As a result of the evalution items for the forest recreation site, Mt. Ungil had a potential area by marking total 67.5 points, summed with 15pts of landscape (suitable), 12pts of flora & fauna(suitable), 14pts of water(possible), 8pts of development condition(unsuitable), 11pts of accessibility (most suitable), and 7.5pts of recreation opportunity (unsuitable), respectively.

      • 五臺山演習林의 植物群集에 關한 硏究(Ⅰ) : 種組成 및 多樣性 Species Composition and Diversity

        尹相旭,金昌浩,朴敎秀 동국대학교 생명자원과학대학 연습림 1993 연습림논문집 Vol.- No.3

        This study was to provide the fundamental data for efficient reservation and management of the Mt. Odae experiment forest of Dongguk University. Obtained results are as follows : 1. As results of simple discriminant analysis, contents of silt and sand showed the most high contribution percent to the discriminant between each physiographic location, ridge and glen parts, steep and slow slopes, and high and low elevation, and among those locations steep slopes were the poorest soil condition. 2. By the community differential table the plant communities of this area are classified by Quercus mongolica―Acer pseudo―Sieboldianum―Rhododendron schlippenbachii community, Carpinus laxiflora―Styrax obassia―Lindera obtusiloba community, Pinus densiflora―Quercus serrata―Lespedeza spp. community, and 3 species groups that mainly appear in ridge part, glen part, and high elevation area, respectively. 3. Quercus mongolica showed the high importance value in ridge part, steep slopes, high elevation area, Carpinus laxiflora n glen part, and Pinus densiflora in low elevation area. 4. Glen part had more rich species than ridge part, and slow slopes was the area where had the the rich species among all the physiographic location. 5. As species diversity(H´) and evenness(J´) were the most high value in slow slopes and the most low one in ridge parts, it were closely related to the degree of inclination of slope, and dominance(1­J´) were the high value in glen parts.

      • 雲吉山演習林 主要造林樹種의 成長過程에 關한 硏究

        朴璟碩,全俊憲,尹和榮,李相植 동국대학교 생명자원과학대학 연습림 1989 演習林硏究報告 Vol.- No.1

        本 硏究는 演習林內 造林樹種의 成長過程과 一般收穫表上의 成長過程을 比較하여 演習林經營合理化를 위한 基礎資料로 提供하고자 실시하였다. 演習林內 6個小班에서 3個樹種의 標準本으로 選定하였으며 樹幹析解를 通하여 分析한 結果는 다음과 같다. 1) 樹高成長은 25年을 基準으로 할 때 일본잎갈나무, 리기다소나무, 잣나무의 順位였다. 2) 直俓成長은 25年을 基準으로 할 때 일본잎갈나무, 잣나무, 리기다소나무, 잣나무의 順位였다. 3) 材積成長은 일본잎갈나무, 잣나무, 리기다소나무의 順位로 樹高成長보다 直俓成長에 더 影響을 받는다. 4) 演習林內 造林 樹種의 成長이 一般收穫表에 比較에 不良한 成長을 보이고 있다. 5) 成長率에서는 初期成長率은 一般收穫表上과 對等하거나 높은 傾向을 나타내나 樹齡이 增加함에 따라 減少하는 것을 계속적인 推育管理에 疏忽에 起因한다. This study was carried to compare the growth of silvicultural species in the university forest with those of general yield table prepared for the entire country and to afford data for the rationalization of university forest management. The growth researches were made at six subcompartments through stem analysis, and the results obtained in this study were as follows; 1) The height growth on the basis of 25 ages in Larix leptolepis was found the best, and those of Pinus rigida Pinus koraiensis in order. 2) The diameter growth on the basis 25 ages it Larix leptolepis was found the best, and those of Pinus koraiensis Pinus rigida in order. 3) The volume growth Larix leptolepis was found the best, and those of Pinus karalensis Pinus in order, it is affected more the diameter growth than the height growth. 4) The growth of the silvicultural species in the university forest was poor as compared with those of the general yield table. 5) In the growth rate, the silvicultural species in the university forest was higher at the early stage, but as the age progressed the growth rate was radically decreased, was lower than the general yield table. It is to tending-carelessness.

      • The effects of simulated acid rain on the seeds germination and seedlings growth of Quercus acutissima and Pinus rigida × P.taeda

        Kim, Sa Ik,Kim, Chang Ho 동국대학교 생명자원과학대학 연습림 1989 演習林硏究報告 Vol.- No.1

        人工酸性雨가 상수리나무(Quercus acutissima)와 리기테다 소나무(Pinus rigida×P. taeda) 種子의 發芽 및 生長에 미치는 影響을 調査하였다. 人工酸性雨는 黃酸과 室酸을 3 : 2 濃度 混合하여 地下水로 稀釋한 pH2.0, pH3.0, pH4.0, pH5.0 調製하였으며 pH6.4는 對照用으로 使用하여 天然降水를 遮斷한 가운데 상수리나무와 리기테다소나무 種子와 幼苗의 生長期間동안 관수하였다. 種子의 發芽, 樹高, 葉數, 葉??, 葉長, 葉被善率, 根元莖, 生重量, 乾重量 T/R 系, 土壞의 物理化學的 特性을 測定하였으며 그 結果는 다음과 같다. 1. 상수리나무 種子의 發芽는 pH2.0 처리구에서 發芽率 64%로 가장 높게 나타나 1%의 有意水準에서 有意性이 인정된 반면, 리키테다소나무는 pH2.0 처리구에서 가장 낮아 處理間 有意差가 인정되었다. 2. 상수리나무의 樹高長生은 pH5.0 처리구에서 가장 높았고 리키테다 소나무는 pH4.0 處理區에서 가장 높게 나타났다. 3. 상수리나무의 엽수는 처리별 큰 差異가 없었지만 葉長 및 葉幅은 pH2.0 처리구에서 5%有意水準에서 有意性이 인정되었다. 4. 상수리나무의 엽피해율은 處理酸性雨의 pH 값이 낮아질수록 被害率과 被害面種이 증가하였다. 5. 處理酸性雨의 pH 값이 낮아짐에 따라 두 樹種 모두 上壞의 pH 값은 점차적으로 감소하였다. 6. 上壞의 全窒表合量은 소나무에서 처리간 差異가 있었으며 pH4.0 처리구에서 0.180으로 가장 높았다. Quercus acutissima and Pinus rigida × P. taeda seeds were irradiated with simulated acid rains to estimate the germination and growth of those two species and the physical and chemical properties of the experimental soils. Simulated acid rains (pH2.0 pH3.0 pH4.0 and pH5.0) were prepared by diluting sulfuric and nitric acid(H_2SO_4: HNO_3= 3:2v/v) with tap water were treated twice a week. The results obtained in this study were as follows: 1. Germination of Quercus acutissima seeds showed the highest value by 64% at pH2.0 treatment and were significantly different among treatment at 1% level. But germination of P. rigida ×P. taeda seeds was lowest pH2.0 treatment. 2. Height growth of Quercus acutissima and Pinus rigida × P. taeda seedings were the highest at pH5.0 and pH4.0 treatment respectively 3. Leaf number of Quercus acutissima seedings were insignificantly different among treatment and leaf length and leaf width were significantly different among treatment at 5% level. 4. Leaf injury (injury leaf rate and injured leaf area) increased with decreaing pH levels of simulated acid rain. 5. Root collar diameter of Q. acutissima and Pinus rigida × P. taeda seedings were the highest at pH6.4 treatment and decreased with decreasing pH levels gradually. 6. Fresh weight of Q. acutissima seedings at pH4.0 treatment was the highest and that of P. rigida ×P. taeda seedings was the highest by 1.63g at pH3.0 treatment. 7. According to decreasing pH level of simulated acid rain, pH values of soil in two species were gradually decreased.

      • 생강나무 種實油의 脂肪酸 分析

        金在慶,趙鍾洙,金思翼 동국대학교 생명자원과학대학 연습림 1995 연습림논문집 Vol.- No.4

        Lindera obtusiloba seed oil was extracted by diethyl ether and fractionated into neutral lipids, glycolipids and phospholipids by silicic acid column chromatograpy. Fatty acid composition of each fraction was examined by gas chromatography. The results obtained were summarized as follows; 1. The proximate chemical composition of Lindera obtusiloba seed was 13.0% in crude protein, 53.5% in fat, 14.4% in carbohydrate and 1.8% in ash content. 2. The values of acid, saponification, iodine and peroxide from Lindera obtusiloba seed oil were 0.93, 269.50, 61.30 and 120.30, respectively. 3. The total lipid was composed of neutral lipid 93.38%, glycolipid 4.52% and phospholipid 2.10%. 4. The fatty acid composition of total lipids were 38.34% in lauroleic acid, 33.23% in lauric acid, 7.75% in oleic acid, 5.38% in mylistoleic acd, 4.69% in capric acid and 3.89% in caproleic acid. 5. The fatty acid composition of neutral lipids were 38.61% in laurolec acid, 33.66% in lauric acid, 7.46% in oleic acid, 5.46% in myristoleic acid, 4.57% capric acid and 3.63% in caproleic acid. The style in some resemblance between total lipids and neutral lipids. 6. The fatty acid composition of glycolipids were 27.59% in lauroleic acid, 26.52% in lauric acid, 13.58% in oleic acid and 8.37% in unknown substance. 7. The fatty acid compositions of phospholipids were 24.67% in oleic acid, 13.31% in lauric acid, 12.71% in linoleic acid, 10.24% in lauroleic acid, 8.43% in myristic acid and 14.47% in unknown substance. The content of oleic acid was shown higher in the phospolipide than other lipids.

      • 白色腐朽菌에 依한 현사시나무材의 化學組成分變化에 관한 硏究

        金銀姬,金思翼,吳正壽 동국대학교 생명자원과학대학 연습림 1993 연습림논문집 Vol.- No.3

        Numbers of various fungi have been shown to degrade lignin at least partially. Fungi with the capacity to remove lignin from wood are of interest in bioconversion process such as biomechanical pulping, biobleaching, treatment of lignin­derived wastes and conversion of lignocellulosics into feed and food. This study was carried out to investigate the extent of lignin biodegradation of hybrid poplar(P. alba×P. grandulosa) during decay process by white rot fungus, Phanerochaete chrysosporium. Hybrid poplar wood block was rotted for 20, 40, 60, 80 days by white rot­fungus, Phanerochaete chrysosporium, and the change in weight loss, alkali solubility, ethanol―benzen extractives, Klason lignin and holocellulose were estimated for each treatment. Wood weight loss after decaying 20, 40, 60, 80 days were 1.98%, 4.36%, 10.19%, 12.25%, respectively. Decaying was proceeded rather fast after 40 days. Lignin, holocellulose and extractives of organic solvent were decreased, but extractives of hot water, alkali were increased. After 80days, Klason lignin and holocellulose content decreased from 21.4% to 14.74%, 83.15% and 64.47% respectively. Tendency of extractives content of hot water, dilute alkali was increased with the increase in the extent of wood decay but extractives content of organic solvent was decreased from 5.17% to 4.11%.

      • 이태리 포플러의 기내 클론증식

        姜鎬德,朴敎秀,Richard B. Hall 동국대학교 생명자원과학대학 연습림 1995 연습림논문집 Vol.- No.4

        교잡종 포플러 (Canada blanc, Eugenei, Ⅰ-45/51, Wisconsin #5)의 기내증식에 미치는 요인들이 조사되어졌다. 식물성장 조절물질로서 싸이토키닌류와 오옥신류와의 조합은 뿌리, 줄기, 잎의 시료로부터 기내증식의 효율 증대에 영향을 미치었다. 일반적으로 benzylaminopurine (BA)과 오옥신과의 조합은 Canada blanc 클론의 잎 시료에 매우 효과적 이었고, zeation과 오옥신류와의 조합은 Wisconsin #5 클론의 줄기 시료에 매우 중요하게 작용했다. 각 시료에서 최대의 증식되어진 줄기의 수는 BA 2.0 ㎎/l를 처리 했을때 Canada blanc의 뿌리 시료로 부터 17.60±8.96개가 생산되어졌다. 반면에, Wisconsin #5의 줄기와 Canada blanc의 잎은 zeation/ 2.0㎎/l와 IAA 0.2㎎/l의 조합과/ BA0.5㎎/l와 2.4-D 0.05㎎/l의 조합에서 각각 18.20±3.03개와 17.80±1.92개의 줄기들을 증식시켰다. 특히, 싸이토키닌의 들어있는 배지에 2.4-D의 첨가는 줄기증식을 촉진시켰다.

      • 한국에 있어서 산림휴양지 공급 주체의 적절성에 관한 연구

        윤화영 동국대학교 생명자원과학대학 연습림 2000 연습림논문집 Vol.- No.6

        Forest recreation area was introduced with Chiri Mountain designated as a national park in 1967 and propelled with recreational forest established in 1989. This paper has focused on the definition of appropriate supplier to provide steadily recreational forest in Korea and the results were as follows. Recreational forest supplier in Korea can be divided as public sector and private sector. The former can keep the stable financial statue, the latter can manage it better than the other. Considering that recreation in forest is based on the forest which has the public value and that the scale of private forest and financial and intellectual status of owner of private forest. It would be desirable that public sector become the subject of supplier of recreational forest and private sector participate in management of recreational forest.

      • 於靑島 海松林의 植生構造에 關한 硏究

        金昌浩,辛壽哲,金熙采,鄭潤軾 동국대학교 생명자원과학대학 연습림 1995 연습림논문집 Vol.- No.4

        This study was carried out to understand the vegetation structure of Pinus thunbergii forest on O˘cho˘ng island and the results were summarized as following: 1. The most dominant species on O˘chong island was Pinus thunbergii and the Ⅰ.Ⅴ. of Pinus thunbergii in the northern aspect showed higher than that of southeren aspect. Quercus acutissima was emerged to the Pinus thunbergii forest and the Ⅰ.Ⅴ. of Quercus acutissima was higher than that of Pinus thunbergii in shrub layer. In addition, the Ⅰ.Ⅴ. of Eurya japonica was the highest among shrubs. The Ⅰ.Ⅴ. of Castanopsis cuspidata var. sieboldii was the highest among evergreen broad leaved trees. 2. The sites investigated were grouped by Cluster Analysis into Pinus thunbergii forest and mixed-species forest in which Castanopsis cuspidata var. sieboldii, Carpinus coreana, and Quercus acuta are dominant. The factor affecting the most remarkable difference might be the silt between Pinus thunbergii forest and the mixed-species forest. 3. As results of COA Odination, community ordination was appeared to Pinus thunbergii area and mixed-species area. In case of the species ordination all the woody species were closely coordinated except Quercus acuta, Meliosma oldhamii, Quercus variabilis. Sand and organic matter were appeared as the most influencing factors to Ⅱ and Ⅲ axes, respectively. 4. The Ⅰ.Ⅴ. of Pinus thunbergii might be decreased by scarce reproduction in the shrub layer. On the other hand, Quercus acutissima, Castanopsis cuspidata var. sieboldii, and Carpinus coreana would increase and succession would be completed in some area by those species. 5. The content of NaCl in soil was much higher than that of land. Soil pH showed significant difference at 5% between the northern and the southern aspect and also sand, silt, Avail. P_2O_5. K^+, and Na^+ were showed significance 5% between Pinus thunbergii forest and mixed-species forest in which Castanopsis cuspidata var. sieboldii, Carpinus coreana, Quercus acuta are dominant. 6. The mainly emergent woody species in O˘chong island - Pinus thunbergii, Quercus acutissima, Q.acuta, Castanopsis cuspidata var. sieboldii, Carpinus coreana. Eurya japonica, Callicarpa japonica, Vibumum dilatatum, and so on - are strong in salinity. Threrfore, the vegetation of O˘chong island was severely influenced by sea breeze and NaCl in soil.

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