• Title/Summary/Keyword: 수목 11종

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Floristic Study of Algific Talus Slope (Yeotan-ri, Jeongseon-gun) in a Specific Area of Forest Biodiversity (산림생물다양성 특정지역 풍혈지(정선군 여탄리)의 관속식물상)

  • Lee, Jong-Won;Yun, Ho-Geun;Hwang, Tae Young;An, Jong Bin
    • Korean Journal of Plant Resources
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    • v.35 no.2
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    • pp.317-345
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    • 2022
  • This study carried out a survey to utilize basic data for the conservation of northern lineage plants that are vulnerable to climate change, targeting algific talus slope of a specific forest biodiversity region in Yeotan-ri, Jeongseon-eup, Jeongseon-gun, Gangwon-do. The survey was conducted by dividing the wind hole into 625 m2 inside and 6,925 m2 outside based on the wind hole. The vascular flora were identified as 84 families, 203 genera, 296 species, 6 subs., 27 var., 2 for., and a total of 331 taxa. This was found to be about 7% of 4,724 species of vascular plants in Korea. Plants endemic to the Korean peninsula were identified as 19 taxa, including Syringa fauriei, and 11 taxa for rare plants designated by IUCN. Critically endangered grade (CR) was Paeonia obovata 1 taxa, Endangered grade (EN) was Forsythia saxatilis and Prunus choreiana 2 taxa. A total of 78 taxa were florisitc target species, and 19 taxa were classified for indicator plants in the limestone area. As for alien plants, 20 taxa such as Taraxacum officinale were identified, and the naturalization rate was 6.04% and the urbanization rate was 5.33%. Geographical plants of the study area are 2 taxa of Syringa fauriei and Syringa villosa subsp. wolfii.

In vitro Multiplication of Hosta Tratt. Species Native to Korea by Shoot-tip Culture (경정배양에 의한 한국 자생 비비추속 식물의 기내증식)

  • Choi, Han;Yang, Jong Cheol;Ryu, Sun Hee;Yoon, Sae Mi;Kim, Sang Yong;Lee, Seung Youn
    • Korean Journal of Plant Resources
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    • v.32 no.1
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    • pp.53-62
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    • 2019
  • The purpose of this study was to establish the in vitro propagation system by shoot tip culture of six Hosta species native to Korea (Hosta capitata (Koidz.) Nakai, H. clausa Nakai, H. jonesii M.G.Chung, H. minor (Baker) Nakai, H. venusta F.Maek., and H. yingeri S.B.Jones) for mass proliferation and a new cultivar development. The shoot tips of each Hosta species were cultured on MS medium containing eight combinations of 0.5, 1.0, 2.0, 4.0 mg/L BA with 0.1 mg/L NAA, 0.1, 0.5, 1.0, 2.0 mg/L TDZ with 0.1 mg/L NAA, and without any PGRs (control). They were investigated on callus, somatic embryo, crown bud, differentiation and growth of shoot and root, total fresh weight after 8 weeks of culture. In all six Hosta species, callus and somatic embryo induction rate and multiple shooting rate of the PGRs treatment group were higher than that of the control group. The highest number of differentiated shoots were obtained on medium supplemented with 2.0 ㎎/L TDZ in H. capitata (5.4), 1.0 mg/L TDZ in H. clausa and H. jonesii (3.3 and 5.8, respectively), 0.5 mg/L BA in H. minor (11.1), 1.0 mg/L BA and 0.1 mg/L TDZ in H. venusta (8.1), and 0.5 mg/L TDZ in H. yingeri (9.8). In somatic embryo formation, the PGRs treatment group of H. jonesii and H. yingeri were more effective than the control group, and the effects were relatively less in H. capitata, H. clausa Nakai, H. minor, H. venusta. Crown bud formation of four Hosta species (H.capitata, H. clausa, H. jonesiig, and H. yingeri) were also higher in the PGRs treatment group than in the control group. Crown bud formation of four Hosta species (H.capitata, H. clausa, H. jonesiig, and H. yingeri) were also higher in the PGRs treatment group than in the control group. H. clausa showed no significant effect on callus and shoot differentiation regardless of the type and concentration of cytokinin, but slightly increased in formation of crown bud in TDZ.

A Study on the Methods of Multiple Sight Surface and Cumulative Visibility Analysis for the Forest Scape Management around the Myeong-hwal Fortress (명활산성 주변의 산림경관 관리를 위한 시곡면(示曲面)과 누적가시도(累積可視度)분석기법 연구)

  • Kim, Choong-Sik;Lee, Jae-Yong;Kim, Young-Mo
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.29 no.4
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    • pp.78-86
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    • 2011
  • The recovering of historical mountain fortress needs the maintenance of forest scape for achieving visibility. In the study, the methods for the maintenance of the forest around the fortress were proposed. The Cumulative Visibility Analysis and Multiple Sight Surface Analysis were tested to verify the methods using GIS on the Myeong-hwal Fortress in Kyungju. The results of the study are as follows. First, the Cumulative Visibility Analysis was made on the Myeong-hwal Fortress from surrounding major viewpoints. The Cumulative Visibility Analysis enables the selection of excellent visibility sectors on the fortress. The 6 excellent visibility sectors were 1,937m(which occupied 41.2% of the area). Second, two cases of pine tree height were compared in the Cumulative Visibility Analysis. One used the average height of pines and the other used the maximum growth height. The comparative result demonstrated that the case of average height would be more effective for deciding the pine removal zone as well as achieving visibility to the mountain fortress. Third, to examine the feasibility of the management method, the tree removal plan and removal execution were compared on the A zone which showed high visibility frequency. Asa comparative result, there was insignificant difference(3.3%) in area between the tree removal plan($10,935m^2$) and removal execution($11,296m^2$). This study proved the Cumulative Visibility Analysis and Multiple Sight Surface Analysis to be effective for forest scape maintenance around a mountain fortress.

A Study on Economic Value of Daegu Arboretum based on Contingent Valuation Methods (가상가치평가법을 이용한 대구수목원의 경제적 가치평가)

  • Kang, Kee-Rae;Lee, Kee-Cheol;Lee, Hyun-Taek;Ryu, Byong-Ro;Kim, Dong-Pil
    • Korean Journal of Environment and Ecology
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    • v.25 no.5
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    • pp.787-798
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    • 2011
  • An arboretum is defined as a collection of facilities that conserve plant species by surveying, collecting, and proliferating and preserving the plants in nature, perform diverse researches on plants and display the plants in exhibition spaces or outdoors as well as provide the public with educational programs and refreshment spaces according to the laws concerned. The public, however, recognizes the exhibition and education functions on plants of arboretum more importantly compared with the roles to survey, collect, and proliferate plants as regulated by the laws. In particular, arboretum plays a role to offer a pivotal educational place in urban area where the public can obtain an hands-on experience and understanding on a wide range of plant species and natural environment. The study aims to estimate the non market environmental values of Daegu Arboretum operated by Daegu Metropolitan City government by using the Contingent Valuation Methods (CVM), which yields the current monetary estimates for the arboretum. The value estimation was undertaken by using the Double-Bound Dichotomous Choice (DBDC) method, and each estimated value was derived from respective functions based on a logit distribution known to include relatively stable estimates according to the shape of the distribution. Considering the statistical fitness test results, the author estimated the amounts of the Willingness To Pay (WTP) such as mean WTP of 12,718 KRW, median WTP of 11,033 KRW, and truncated mean WTP of 11,468 KRW, which represented the annual recreational values per a person visiting Daegu Arboretum respectively. The analysis showed that Daegu Arboretum created the annual environmental values which were estimated to be approximately 16 to 19 billion KRW. The study also has an implication that the valuation method for the environment of Daegu Arboretum may be effectively applied for estimating the values of other types of environmental goods by altering the locations or goods to be analyzed.

The Flora of Vascular Plants in Mt. Ilimsan and Its Adjacent Areas (in Boseong-gun, Jeonnam-do, Korea) (전남 보성군 일림산 일원 관속식물상)

  • Shin, Soon-Ho;Oh, Chan-Jin;You, Han-Choon
    • Korean Journal of Environment and Ecology
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    • v.36 no.3
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    • pp.277-302
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    • 2022
  • This study aims to establish the floristic data and identify the useful plant resources of Mt. Ilimsan and its adjacent areas. The survey was conducted 27 times from March 31, 2020 to August 22, 2021. It identified 500 taxa consisting of 101 families, 304 genera, 444 species, 11 subspecies, 42 varieties, and 3 formas. A total of 853 plant specimens were collected. There were 16 taxa designated as endemic plants and 7 taxa designated as the rare plants by the Korea Forest Service, and 5 taxa designated as the red list plants by the Ministry of Environment. Moreover, the floristic target species by the Ministry of the Environment found in this mountain were 69 taxa, including 49 taxa for floristic degree I, 7 for floristic degree II, 11 for floristic degree III, and 2 for floristic degree IV. Biological resources subject to export approval by the Ministry of Environment were 159 taxa. The alien plants were 49 taxa, of which 5.6 percent were naturalized, and the urbanization index was 7.9 percent. Ecosystem-disturbing invasive alien plants designated by the Ministry of Environment were 6 taxa.

Plant Diversity of Qurecus mongolica Forest in Mt. Biryong (비룡산 신갈나무림의 식물 다양성)

  • Kim, Jun-Soo;Hong, Jin-Ki;Kim, Kyung-Soo;Cho, Yong-Chan;Bae, Kwan-Ho
    • Journal of agriculture & life science
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    • v.45 no.3
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    • pp.9-18
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    • 2011
  • This study was performed to investigate species diversity of understory in Mt. Biryong. The quadrat size was installed based on the result of analysis of Species-Area Curve. The vascular plants were enlisted 107 taxa: 47 families, 80 genera, 91 species, 11 varieties, 2 subspecies, and 3 forms. The three taxa such as Carex okamotoi, Philadelphus schrenkii var. schrenkii, and Weigela subsessilis were enlisted from the surveyed sites as the Korean endemic plants. Due to the list from the Korea Forestry Administration, Rhododendron micranthum was enlisted as the rare plant. The growth from was categorized followed by forbs, shrubs and trees, respectively.

Vascular Plant Diversity of Sambong and Jaung Mountains in Paju City, Border Area of the Korean DMZ (DMZ접경지역에 위치한 파주시 삼봉산·자웅산 일대의 관속식물 다양성)

  • Song, Jin-Heon;Byun, Kyung-Ryul;Gil, Hee-Young
    • Korean Journal of Environment and Ecology
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    • v.36 no.1
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    • pp.30-55
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    • 2022
  • This study conducted a flora survey in the areas of Mt. Sambong (282m) and Mt. Jaung (263m), located in Paju-si, Gyeonggi-do. A total of 434 taxa, including 6 forms, 34 varieties, 11 subspecies, 383 species, 271 genera, and 94 families, were surveyed in the two mountain areas. The ferns were identified as 24 taxa from 10 families, the gymnosperms as 8 taxa from 2 families, the dicotyledonous plants as 322 taxa from 73 families, and the monocotyledonous plants as 80 taxa from 9 families. Five taxa, including Salix koriyanagi, Cimicifuga heracleifolia, Forsythia koreana, Paulownia coreana, and Hemerocallis hakuunensi, were identified as the Korean endemic plants. Eight taxa, including Cimicifuga heracleifolia, Tylophora floribunda, and Iris minutiaurea as Vulnerable species, andAristolochia contorta, Viola diamantiaca, Lithospermum erythrorhizon, Lilium distichum, andArisaema heterophyllumas Least Concern species, were designated as rare and endangered plants designated by the Korea Forest Service. The invasive alien plants were 40 taxa, including Rumex crispus, Phytolacca americana, Cerastium glomeratum, Silene armeria, Chenopodium album, Chenopodium ficifolium, Magnolia obovata, Potentilla supina, Amorpha fruticosa, Medicago sativa, Robinia pseudoacacia, Trifolium repens, Euphorbia supina, Hibiscus trionum, and Oenothera biennisaccounting for 9.2 percent of the 434 taxa of the surveyed plants. As this area is a mountainous area close to settlement facilities, it is believed that ecological preservation measures and measures of specialized plants should be implemented.

Vegetation Structure of Taxus cuspidata Communities in Subalpine Zone (아고산대 주목 군락의 식생구조에 관한 연구)

  • Cho, Min-Gi;Chung, Jae-Min;Jung, Hye-Ran;Kang, Mee-Young;Moon, Hyun-Shik
    • Journal of agriculture & life science
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    • v.46 no.5
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    • pp.1-10
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    • 2012
  • This study analyzed on the characteristics of vegetation structure, species composition and DBH class distribution in order to conservation and effective management for Taxus cuspidata community in Mt. Seorak, Mt. Balwang, Mt. Taebaek, and Mt. Odae. The vegetation in upper, subtree and shrub layer was consist of 11, 22, 33 species in Mt. Seorak, 15, 21, 33 species in Mt. Balwang, 10, 23, 36 species in Mt. Taebaek, and 14, 30, 32 species in Mt. Odae. As a result of importance value at all study sites, T. cuspidata and Abies nephrolepis in upper layer, T. cuspidata, A. nephrolepis and Acer komarovii in subtree layer, and Tripterygium regelii in shrub layer were high, respectively. Species diversity in upper and subtree layer at all study sited were ranged 0.834~1.234 and 1.125~1.329, respectively. According to the DBH class of major three species, T. cuspidata in Mt. Odae site showed a reverse J-shaped curve, which was estimated that T. cuspidata community of this site might be maintained continuously as a stable state.

Korean Native Landscape Woody Plants planted at JC Raulston Arboretum in USA (미국 JC Raulston 식물원에 식재된 한국자생 조경수목)

  • Seo, Byung-Key
    • The Journal of Natural Sciences
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    • v.11 no.1
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    • pp.137-142
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    • 1999
  • JC Raulston Arboretum of the North Carolina State University houses 113 species of Korean native landscape woody plants. Styrax japonicus 'Emerald Pagoda'[formerly 'Sohuksan'] is native to Korea, China, and Japan. 'Emerald pagoda' is a special cultivar found by DR. J.C. Raulston during the United States National Arboretum plant collection expedition of the island of Sohuksan at the Western end of the Korea in 1985. Incredible, thick, glossy, large-leafed form of this beautiful white flowering tree found in Korea in 1985. It was probably the most outstanding ornamental plant to come from the expedition after his trip to Sohuksan and Chindo in the harsh perilous islands of the coast of Korea. He brought this one back in his suitcase. Viburnum awabuki 'Chindo' is and evergreen broadleaf shrub. It is for screening and as fire resistant trees in the southern region of Korea, because of its compact, leathery leaves. 'Chindo' was discovered on the island of Chindo by the U.S. National arboretum plant exploration team including J.C. Raulston during its 1985 Korean trip. Cuttings were taken from this plant, and liners were produced over subsequent years. These liners are now being evaluated for hardiness and fruit production throughout the Southeast of USA.

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The Flora of Coastal Sand Dune area in Gyeongsangbuk-do (경상북도 해안사구 일대의 식물상)

  • Park, Seon-Joo;Park, Seong-Jun;Son, Sung-Won
    • Korean Journal of Environment and Ecology
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    • v.23 no.5
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    • pp.392-410
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    • 2009
  • The vascular plants recorded from the 11 sites of coastal sand dune in North Gyeongsang Province are as follows: 204 taxa, 2 hybrids, 1 form, 22 varieties, 1 subspecies, 178 species, 132 genera, 43 families. These areas also present rare plant (Glehnia littoralis); 20 taxa, 20 species, 20 genera, and 15 families of floristics special plants; 46 taxa, 2 variety, 44 species, 30 genera, and 12 families of naturalized plants. The ratio of urbanization and naturalized index is 16.14% and 22.55% respectively. Life form spectrum is Th-$R_5-D_4$-e type. The number of species recorded from the coastal sand dune in Hujeong area turned out to be the highest (44.6%), and the coastal sand dune in Heseo area showed the highest naturalized index (31.58%).