• Title/Summary/Keyword: Woody species

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Seeding of the Woody Plants for the Quick-coverage of the Slopes (비탈면 조기수림화를 위한 녹화용 식물의 활용에 관한 연구)

  • Kim, Namchoon;Yoon, Jungseo;Bae, Sunwoo;Son, Won-Ju;Jung, Sungchul
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.5 no.6
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    • pp.72-85
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    • 2002
  • This study was conducted to investigate the germination rates and ground coverage rates of the 16 native wild flower, herbaceous, shrub and woody plants according to temperature and seeding timing for the revegetation and rehabilitation of the roadside slopes. Also, this study was conducted to suggest design criteria to select revegetation plants and to decide proper seed mixture for ecological restoration of the disturbed manmade slopes as a environmentally friendly construction. The results are summarized as follows. 1. Most of the plants germinated after 10~14 days. Woody plants germinated more slowly than wild flowers and herbaceous plants because of the hard seed. 2. Most of the plants showed the highest percentage of the germination rates under $15/25^{\circ}C$ temperature. The next was in order of under the $20/30^{\circ}C$ temperature, normal temperature(October) and $25/35^{\circ}C$ temperature. 3. At the chamber experiment, the Sorbaria sorbifolia var. stellipila showed the highest germination rates. Most of the native wild flowers germinated well and showed high germination rates under the various temperature. 4. As the field germination experiments, the seeding at August shows higher germination rates than that of the seeding at September, but showed lower surviving percentage of the germinated seedlings and lower ground coverage percentage than those of the seeding at September. After one year, Chionanthus retusus, Acer palmatum, Albizzia julibrissin are germinated and showed 10% coverage rates. So, they can be used as revegetation plants for the restoration works. 5. As seed mixture experiment, it was not effective only to increase the proportion of the ratio of the tree seeds, relatively high price, for making woody vegetation. It would be more successful to make vegetation structure by natural competition among wild flowers, shrubs and trees. 6. The excessive dominance of trees in revegetation works may destroy the lower layer of vegetation and it will be undesirable on the species diversity. It is more important to recover the species diversity of the plant community by seed mixture with the considering the germination, the growth characteristics and the correlation effect among revegetation plants. 7. To recover the manmade slopes quickly, increasing the ratio of the wild flower was recommended.

A Study of the Flora of Kyungpook National University Forests (경북대학교(慶北大學校) 연습림(演習林)의 유관속(維管束) 식물상(植物相)에 관(關)하여)

  • Hong, Sung Cheon;Lee, Byung Cheon
    • Current Research on Agriculture and Life Sciences
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    • v.1
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    • pp.101-111
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    • 1983
  • This experiment was conducted to investigate the flora of Kyungpook National University Forests, which is located in Walme-Ri, Hyundong-Myon, Chungsong-Kun and at $128^{\circ}$ 59' $55^{\prime\prime}-129^{\circ}$ 01' 30"E longitude and $36^{\circ}$ 10' $30^{\prime\prime}-36^{\circ}$ 13' 00"N latitude. The results obtained can be summarized as follows; The kinds of the vascular plants identified are 298 which are composed of 79 families, 188 genera, 248 species, 1 subspecies, 46 varieties and 3 formae. Woody plants are composed of 39 families, 67 genera, 112 species, 7 varieties and 3 formae. The total number of woody plants listed are 122, tall trees of woody plants 50, shrubs 46 and winders 16, respectively. The kinds of edible plants listed are 118 such as Lithospermum erythrohizon, Codonopsis lanceolata and Aster scaber etc. Medical plants are listed as 48 kinds such as Schizandra chinensis, and A canthopanax sessiliflorus etc. Con Codonopsis Schizandra. It is the first time to report that the populations of Ulmusmacrocarpa, Acanthopanax sessiliflorus, Schizandra chinensis, and Lithospermum erythrorhizon are existed in this area.

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Modeling the Present Probability of Urban Woody Plants in the face of Climate Change (기후변화에 따른 도시 수종의 기후 적합성 평가모델 - 서울시를 대상으로 -)

  • Kim, Yoon-Jung;Lee, Dong-Kun;Park, Chan
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.16 no.1
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    • pp.159-170
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    • 2013
  • The effect of climate change on urban woody plants remains difficult to predict in urban areas. Depending on its tolerances, a plant species may stay and survive or stay with slowly declining remnant populations under a changing climate. To predict those vulnerabilities on urban woody plants, this study suggests a basic bioclimatic envelop model of heat requirements, cold tolerance, chilling requirements and moisture requirements that are well documented as the 'climatic niche'. Each component of the 'climatic niche' is measured by the warmth index, the absolute minimum temperature, the number of chilling weeks and the water balance. Regarding the utility of the developed model, the selected urban plant's present probabilities are suggested in the future climate of Seoul. Both Korea and Japan's thermal thresholds are considered for a plant's optimal climatic niche. By considering the thermal thresholds of these two regions for the same species, the different responses observed will reflect the plant's 'hardening' process in a rising climate. The model illustrated that the subpolar plants Taxus cuspidata and Ulmus davidiana var. japonica are predicted to have low suitability in Seoul. The temperate plants Zelkova serrata and Pinus densiflora, which have a broad climatic niche, exhibited the highest present probability in the future. The subtropical plants Camellia japonica and Castanopsis cuspidata var. sieboldii may exhibit a modest growth pattern in the late 21C's future climatic period when an appropriate frost management scheme is offered. The model can be used to hypothesize how urban ecosystems could change over time. Moreover, the developed model can be used to establish selection guidelines for urban plants with high levels of climatic adaptability.

Abies koreana and Its New Forms Discovered (구상나무와 새로 발견(發見)된 품종(品種))

  • Lee, Tchang Bok
    • Journal of Korean Society of Forest Science
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    • v.10 no.1
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    • pp.5-6
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    • 1970
  • Abies koreansa Wilson grows at the upper part of Mts. Halla, Chiri, Mudung, Kaji and Dokyu. It was at first collected by Father U. Faurie on the May of 1907 from the Mt. Halla, Quelpaert. Cone colour of this species varies from green to black purple and the typical colour of it is violet purple. A form of black purple was named by Hatushima in 1934. Green and reddish brown or reddish purple colours of this species were discovered recently at the Mt. Halla. All these forms can be identified as the following. for. koreana - Abies koreana Wilson in Journ. Arn. Arb. 1, 188(1920) ; Mori, En. 27(1922) ; Uyeki, Timb. Tr. 117(1926) et Woody Pl. 5(1940) ; Chung et al, Comm. Nam. 12(1937) ; Handb. Kor. Manch. For. 71(1939) ; Kawamoto, III. For. P1. 16(1940) ; T. Lee, Arb. Kor. 12(1947) et Billiogr. Woody P1. 233(1966) ; Nakai, Synopt. 23(1952)-A. nephrolepis sensu Nakai, Rep. Veg. Chirisan 23, no. 27(1915) et Rep. Veg. Quelpaert Isl. 13, no. 142 (1915), non Max. (1866) Strobili violaceo-purpurei, bracteis viridibus juvenilibus vel stramineis matureis. Mt. Halla ( Lee, no. 970527K. ) for. chlorocarpa, forma nova ; Strobili et bracteae viridi sed rubescent in apice juvenili inflerescentiae. Mt. Halla ( Lee, no. 970527C. ) for. rubrocarpa, forma nova ; Strobili et bracteae rubro-purpurei vel rubro-fusui Mt. Halla ( Lee, no. 970527R. ) for nigrocarpa Hatushima, Rep. Exp. For. Kyushu U. 40(1934) ; T. Lee, Arb. Kor. 12(1947) et Bibliogr. Woody P1,233(1966). Strobili et bracteae nigro-purpurei. Mt. Halla (Lee, no. 970527N. )

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Re-Examination of Several Elsinoë Species Reported from Japan

  • Anysia Hedy Ujat;Tsuyoshi Ono;Yukako Hattori;Chiharu Nakashima
    • Mycobiology
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    • v.51 no.3
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    • pp.122-138
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    • 2023
  • Elsinoë are plant pathogenic fungi that cause scabs, spotted anthracnose, and some morphological distortions on various plants, including woody plants, economically important crops, and ornamental plants. Taxonomical reexamination of Elsinoë species in Japan has not yet been conducted based on the modern species criteria. In this study, several Japanese isolates were reexamine based on the morphological and molecular-phylogenetic analysis of the internal transcribed spacer region (ITS), large subunit gene (LSU)m and protein-coding gene such as RNA polymerase II subunit (rpb2) and Translation elongation factor 1-alpha (tef). Japanese isolates were divided into four clades and three new species, Elsinoë hydrangeae, E. sumire, and E. tanashiensis were proposed. One species, Sphaceloma akebiae, was transferred to the genus Elsinoë.

Hanji Manufacturing from Bast Fibers of Kenaf, Hibiscus cannabinus (양마의 인피섬유를 이용한 한지제조)

  • Cho, Nam-Seok
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.40 no.4
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    • pp.1-9
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    • 2008
  • The utilization of non-woody fibers with the fast growing annual plants has occurred in the paper industry to replace wood and preserve environment of the earth. The non-woody fibers generally used for papermaking are paper mulberry, gampi, manila hemp, rice straw, bamboo, and coton linter etc.. Recently Kenaf has been spot-lighted for the same application. Kenaf is an annual plant of Hibiscus species of Malvaceae family. Kenaf, a rapid growing and high harvesting non-woody fiber plant, was identified as one of the promising fiber sources for the production of paper pulp. This study was carried out to investigate the pulping characteristics of Kenaf bast fiber for Hanji (traditional Korean paper) manufacturing by different pulping methods, such as alkali, alkali-peroxide and sulfomethylated pulpings. It was possible to make superior grade of Hanji. Especially sulfomethylated pulping was resulted in superior pulp in terms of higher yields and qualities in comparison to those of the other pulping methods. Hanji from sulfomethylated pulp was shown the highest brightness of over 60% and higher sheet strength. In addition, the morphological features of pulp fibers (pulp compositions) affect to the sheet properties. Therefore the effect of fiber distribution index(FDI) which was calculated from the data of Confocal laser scanning microscopy(CLSM) on the sheet properties of Kenaf Hanji was also discussed.

The Occurrence of Extrafloral Nectaries in Korean Plants (韓國植物의 花外蜜腺分布)

  • Pemberton, Robert W.
    • The Korean Journal of Ecology
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    • v.13 no.4
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    • pp.251-266
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    • 1990
  • Extrafloral nectaries have been shown in many studies to promote mutualistic interactions between plants and insects(usually ants) that visit the glands. The insects gain sugars, water and amino acids secreted by the extrafloral nectaries and benefit the plants by reducing the damage caused by plant's inseet herbivores. Little is known about the occurrence of extrafloral nectaries in plants growing in Asia. To learn about the occurrence of extrafloral nectary bearing plants in Korea, living plants and herbarium material were examined for the glands. In addition, the cover of plants with extrafloral nectaries and the proportion of woody plants with extrafloral nectaries were measured in three forest communities on Kangwha Island. 131 species of plants belonging to 53 genera and 30 families were found to have extrafloral nectaries. These 131 species comprise about 4.0% of Korea's flora, a highet percentage of extrafloral nectary bearing plants than occurs in the studied areas of North America. Extrafloral nectary bearing plants occupied 7, 23 and 55% of the covers and comprised 15, 21 and 15% of the woody plants in the three different forests, a significant level of occurrence. Many important Korean crop plants were found to have extrafloral nectaries including : sesame (Sesamum indicum L.), squash (Cucurbita moschata Duchesne), sweet potato (Ipomoea batatas Lam), persimmon (Diospyros kaki Thunb.) cotton (Gossypium indicum Lam.), mung bean (Phaseolus radiatus L.), red bean (Phaseolus angularis W.F.), peach (Prunus persica (L) Batsch.), plum (Prunus salicina Lindl.). Many of these cultivated and wild plants may receive protection by ants and other beneficial insects that visit their extrafloral nectaries.

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Survey of Ectomycorrhizae in the Selected Woody Species in Korea (한국(韓國)의 목본식물(木本植物)의 외생균근(外生菌根)에 관(関)한 조사(調査))

  • Lee, Kyung Joon;Koo, Chang Duck;Shim, Sang Yung
    • Journal of Korean Society of Forest Science
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    • v.52 no.1
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    • pp.50-57
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    • 1981
  • Occurrence of ectomycorrhizae in the selected woody plants growing in Korea was surveyed and compared with that reported in the literature. Ectomycorrhizae were common features in Pinaceae, Salicaceae, Betulaceae, Fagaceae, Ulmaceae, and Tiliaceae, which agreed with literature. We were unable to find ectomycorrhizae in Cupressaceae, Juglans, Rosaceae, and Acer which were reported to have facultative ectomycorrhizae. Other species observed did not have ectomycorrhizae.

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Land Use and Greenspace Structure in Several Cities of Kangwon Province (강원도 일부 도시들의 토지이용 및 녹지구조)

  • 조현길;이기의;윤영활;서옥하
    • Journal of the Korean Institute of Landscape Architecture
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    • v.25 no.4
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    • pp.171-183
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    • 1998
  • The purpose of this study was to analyze urban greenspace area and vegetation structure by land use types for both Chuncheon and Kangleung. Natural and agricultural lands were predominant in the study cites, as 75-80% of total area. Residential lands accounted for about 10%, and commercial and industrial lands(including transportation), 5-10%. Only 10-20% of urban residential and commercial area was covered with greenspace. Woody plant cover was 12-13%, and tree density was 1.5 trees/100$m^2$ for urban lands(all land use types except natural land) in both cities. The tree-age structure was largely characterized by young, growing tree population, and species diversity within a diameter class decreases as the diameter classes get larger. Urban lands of both cities had quite a similar species composition of woody plants (similarity index of 0.65). Street trees in Chuncheon were intensively pruned annually to protect the above ground utility lines. Some strategies were explored to solve problems found in the existing greenspace structures. They included increase of biomass and greenspace area through minimization of unnecessary impervious surfaces, creation of multilayered and multiaged vegetation structures, relocation of above ground utility lines and avoidance of intensive tree pruning, and establishment of greenspace proximity and connectivity.

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Four Species of Endophytic Fungi Isolated from Leaves of Woody Plants in Mt. Hambaek (강원도 함백산에 서식하는 목본식물의 잎에서 분리한 4종의 내생균)

  • Eo, Ju-Kyeong;Lee, Bong-Hyung;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.42 no.3
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    • pp.239-242
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    • 2014
  • In this study, endophytic fungi were isolated from leaves of four species of woody plants, Acer tagmentosum, Larix kaempferi, Abies holophylla, and Pinus koraiensis, on Mt. Hambaek, Gangwondo, Korea. The endophytic fungi were identified using morphological and sequences analysis of ITS regions. The fungal endophytes were identified as Talaromyces radicus, Myceliophthora verrucosa, Cryptosporiopsis diversispora, and Sphaerulina berberidis, which are the first record in Korea. The morphological and molecular phylogenetic characteristics of each strain were described.