• Title, Summary, Keyword: Korean native plants

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Characteristics of Several Korean Native Herbaceous Plants for Cut Slope Revegetation (몇 가지 자생 초화류의 사면녹화 특성)

  • Song, Jeong-Seob;Chang, Young-Deug;Lee, Sang-Jeong;Bang, Chang-Seok;Huh, Kun-Yang;Chung, Meyong-Il;Chung, Hyun-Hwan
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.8 no.1
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    • pp.10-16
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    • 2005
  • This experiment was conducted to study on application of several Korean native plants by seed spray methods for cut slope revegetation, and possibility of replacement almost imported tall fescue seeds by native herbaceous plants. So, we investigated growth and covering rate after sowing native plants seeds at the artificial slope plots in Suwon and the rock exposed cut-slopes in Wonju city. Emergence rate after seed spray at artificial slopes were higher Elsholtzia splendens and Dianthus superbus var. longicalycinus, showing the highest in E. splendens. Also, E. splendens, D. superbus var. longicalycinus, and Agrostemma coronaria were possible to use for seed spray at the rock exposed cut-slopes. The plots of mixed native plants show more seasonal scenery than that of tall fescue. Soil surface run-off by Typhoon was less in plot sown native plants than those of lawn grass, resulting fresh weight of roots was heavier. Thus, we found that the mixed seed spray of several native herbaceous plants, E. splendens, D. superbus var. longicalycinus, and Agrostemma coronaria, were well covered the slopes as tall fescue.

Development of Restoration Technology Using Native Plants Seed Chip for Various Disturbed Slopes (자생식물 종자칩(seed chip)을 이용한 훼손사면의 복원 공법의 개발)

  • Suh, Hyoung-Min;Kim, Dong-Geun;Lee, Nam-Sook
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.13 no.1
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    • pp.112-120
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    • 2010
  • This study was carried out to develop the environmental friendly restoration technique for various disturbed slopes using native plants seed chips. As the result of the separated seeding using the developed seed chips of native plant combination, average germination rate and survival rate of trees, shrubs, and herbs were higher than those of the direct seeding, as 79~70%, 83~73%, and 59~53% or so, respectively. Also, the germination rates and the survival rates of trees, shrubs, and herbs in the separated seeding by the native plants seed chips were 10~15 times higher than those of the direct seeding. Numbers of plants survived were at least 10 times of that of the simple seeding. The native plants seed chip technique is more efficient in soil slopes compared with stone slopes. The application of the native plants seed chip technique makes the restoration stabilized through the herbs dominant vegetation to the woody dominant 1 within 3 years, and the Landscapes also changed from herbs to variously combined herbs and woody. The technique using native plants seed chips that can be applicable to various disturbed slops is more efficient than conventional restoration techniques in the respect of economics and landscape.

A study on the seeding timing of several herbaceous plants for the slope revegetation works (주요 초본식물의 비탈면 파종적기에 관한 연구)

  • 김남춘
    • Journal of the Korean Institute of Landscape Architecture
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    • v.25 no.2
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    • pp.62-72
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    • 1997
  • This study was conducted to find out the hydroseeding timing of several herbaceous plants for the slope revegetation works. Four native plants and five introduced grasses were used for this experiment and were seeded on the cut slopes by hands in April, May, June, September and October. To identify the best seeding timing, germination percentage, ground covering rate, number of tillers and plant heights were investigated. There were wide differences in germination and ground covering rates of native plants are lower than those of cool-season foreign grasses and they show different germination rates according to seeding timing. Among them, Arundinella hirta var. ciliata shows the most apparent germinatin pattern according to seeding timing. 2. Seeding timing : Native plants tend to germinate well in May and June and cool-season foreign grasses in May and September. But Native plants show extremely low germination rates in autumn, so it is necessary to adjust the seeding rates when seeding in autumn. When seeding in May, it will be possible to use native plants-seed-mixture without using introduced foreign grasses. In sum, the best seeding timing of cool-season foreign grasses are May and September, and warm-season foreign grass is May and June. The best seeding timing of native plants seem to be in May and June.

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Endophytic fungi harbored in Chinese native gramineous plants

  • Wang, Zhiwei;Ji, Yanling
    • 한국균학회소식:학술대회논문집
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    • pp.44-56
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    • 2009
  • $Epichlo\ddot{e}$ endophytes, including Neotyphodium spp. and $Epichlo\ddot{e}$ spp., enhance plant growth, mediate more plant tolerance or resistance to biotic and abiotic stresses, and also synthesis various biologically active compounds in their host plants, and important in many areas. In early stages, most of $epichlo\ddot{e}$ endophytes were described during surveys practiced by American, European and Oceania scientists, while fungal endophytes within native Asian plants were poorly investigated. In recent years, an $Epichlo\ddot{e}$ sp. and 4 Neotyphodium spp. were described in cool season Chinese native gramineous plants. Most of Chinese native Neotyphodium spp. were presumed as hybrids originated from members of ETC and EBY. Investigation on NRPS genes shows lack of toxic ergopeptines and potential production of peramine. Biological and ecological roles of Chinese native $epichlo\ddot{e}$ endophytes should be investigated in future, and it will be very valuable if we can have some joint projects with Korean scientists for Asian native $epichlo\ddot{e}$ endophytes.

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A Study on Native Wildflower Planting Programs for Sustainable Roadside Vegetation in USA (환경친화적 도로녹화를 위한 미국 야생화 식재 정책에 관한 연구)

  • Lee, Hyung-Sook
    • Journal of Korean Society of Rural Planning
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    • v.23 no.1
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    • pp.157-164
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    • 2017
  • Roadside native vegetation provides important habitat for plants and animals, and provides visual amenity and beauty for drivers and rural areas. In particular, native wildflowers create and maintain attractive landscaping and scenic vistas while help protect and restore the natural environment. However, it is lacking in government policies and guidelines about using native wildflowers for roadside vegetation and alien invasive plants are a major threat to our environment. The purpose of this study is to review the regulations and programs for roadside vegetation, especially native wildflowers in USA in order to learn lessons about developing wildflower policies in Korea. A summary of results follows: (1) the goals of roadside vegetation have been shifted from beautification for pleasant driving experience to sustainable and economical maintenance. (2) Various funds and laws by federal and local government are essential for native wildflower planting and roadside enhancement. (3) Ongoing projects on seed collection and seed banking of native plants are conducted by wildflower research centers to conserve and propagate endangered plants. (4) Recognizing that wildflower viewing holds tremendous potential, increasing local governments try to grow wildflower tourism for economic benefits. In conclusion, we should establish a long-range plan and regulations on roadside wildflowers planting in order to create safe and sustainable transportation corridors in Korea. In addition, more research on wildflower habitat and propagation should be warranted and landscape architects should play a definitive role in providing pleasant driving experiences and promoting wildflower tourism.

The Distribution of non-native Plants in Ulleung Island (울릉도의 귀화식물 분포)

  • Park Soo-Hyun;Koh Kang-Suk;Kil Ji-Hyon
    • Korean Journal of Plant Resources
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    • v.19 no.2
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    • pp.237-242
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    • 2006
  • Non-native flora of the Ulleung island, located in the eastern part of South Korea, was surveyed as 54 taxa with 16 families, 35 genera, 53 species and 1 variety. Considering the geographical distribution aspects of the island, the flora of the island showed more closely related with Korean Peninsular than Japan. Poaceace (28%) and Asteraceae (24%) represents more than 50% of the non-native flora in Ulleung island, meaning that they have an advantage of seed dispersal and adaptation to new environments. Ulleung island is comparatively small island of vulnerable to the attack of invasive alien plants but presently, it has the least number of non-native plants than other areas in South Korea. Therefore, we need to take much interest in prevention and mitigation of non-native plant in the future.

Native Plants Combination for Ecological Environmental Restoration of the Dissected Sloping Area (절개지 사면의 생태환경 복원을 위한 자생식물 조합)

  • Lee, Chang Shook;Suh, Hyoung Min;Kim, Dong Geun;Eum, Sang Mi;Choi, Sun A;Lee, Nam Sook
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.12 no.6
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    • pp.36-50
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    • 2009
  • To suggest the native plants combination for restoration of the dissected sloping area, the plant communities of thirty seven quadrats from five localities of mid-southern part of Korean peninsula were surveyed from 2007 to 2008. Their flora, vegetation structure, and dominant species based on the importance value were investigated. And the soil characters (pH, moisture content, water holding capacity, and organic matter) of each dominant species were analyzed. Also, germination tests were performed to check the stability of restored native plants using seed chips. As a result, 79 native plants were suggested for the dissected sloping area : 20 trees and subtrees for the upper layer, 18 shrubs and vines for the middle layer, and 41 herbs for the lower layer, taken together their flora, dominant species, vegetation structure, soil condition, germination test, flowering period.

Neuroprotective Effects of Methanol Extracts of Jeju Native Plants on Hydrogen Peroxide-induced Cytotoxicity in SH-SY5Y Human Neuroblastoma Cells

  • Kong, Pil-Jae;Kim, Yu-Mi;Lee, Hee-Jae;Kim, Sung-Soo;Yoo, Eun-Sook;Chun, Wan-Joo
    • The Korean Journal of Physiology and Pharmacology
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    • v.11 no.5
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    • pp.171-174
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    • 2007
  • Neuronal death is a common characteristic hallmark of a variety of neurodegenerative disorders including Alzheimer's disease and Parkinson's disease. However, there have been no effective drugs to successfully prevent neuronal death in those diseases, whereas oriental medicinal plants have to possess valuable therapeutic potentials to treat neurodegenerative diseases. In the present study, in an attempt to provide neuroprotective agents from natural plants, 80% methanol extracts of a wide range of medicinal plants, which are native to Jeju Island in Korea, were prepared and their protective effects on hydrogen peroxide-induced apoptotic cell death were examined. Among those tested, extracts from Smilax china and Saururus chinesis significantly decreased hydrogen peroxide-induced apoptotic cell death. The extracts attenuated hydrogen peroxide($H_2O_2$)-induced caspase-3 activation in a dose-dependent manner. Further, plant extracts restored $H_2O_2$-induced depletion of intracellular glutathione, a major endogenous antioxidant. The data suggest that Jeju native medicinal plants could potentially be used as therapeutic agents for treating or preventing neurodegenerative diseases in which oxidative stress is implicated.

Study on the Sod Forming Effects of the Native Plants for the Erosion Control in Slopes (비탈면 침식방지를 위한 자생초본식물의 뗏장 형성에 관한 연구)

  • Kim, Nam-Choon;Lee, Sang-Joo;Jung, Ji-June;Kim, Jung-Hoon;Nam, Sang-Jun
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.7 no.1
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    • pp.77-84
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    • 2004
  • This study was conducted to suggest vegetation mat forming methods with native wildflowers, introduced wild flower, grasses and native herb plants which can be used for erosion control of the disturbed slopes. The main results are summarized as follows. In forming the vegetation mat at early stage, foreign grasses, native wild plants shows more effective than the other seed mixture types. But, after 12 weeks, using native wild flowers shows more effective than foreign grasses. Also, the mixture of the native grasses and kentucky bluegrasses (seed mixture type F) are the best in ground coverage among the seed mixtures types. In order to restore slopes more naturally, more diverse plants should be used. The native grasses such as Marrubium incisum Bentham, Lutos comiculatus L. var. japonicus Regel, and Artemisia princeps Pampan seems to be useful to forming the vegetation mat, also it will be more easy if mixing with foreign grasses such as Kentucky bluegrass. The mixture of native grasses and introduced wild flowers are not proper in forming the vegetation mat. Also, pot planting of the native grasses are not proper in forming the vegetation mat.

Antimicrobial Activities of Extracts from Several Native and Exotic Plants in Korea (수 종의 한국자생식물과 귀화식물 추출액이 토양미생물에 미치는 항균활성)

  • Kim, Yong-Ok;Lee, Eun-Ju;Lee, Ho-Joon
    • The Korean Journal of Ecology
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    • v.23 no.5
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    • pp.353-357
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    • 2000
  • The soil pH favored by several native plants in Korea ranges 5.33∼7.20, while a more acidic range of pH 3.95∼6.10 is acceptable to exotic plants. Ethanol extracts of native and exotic plants in Korea were investigated for antimicrobial activity against Bacillus sphiaericus 2362, Bacillus thuringiensis var. subtilis and Bacillus thuringiensis var. cereus and Actinomycetes. Higher antimicrobial activity was observed from the extract of exotic plants than those of native plants. The ethanol extract of Ambrosia artemisiifolia var. elatior was observed to have the highest antimicrobial activity against 4 species of soil microbes. Especially, antimicrobial activity of Ambrosia artemisiifolia var. elatior showed the largest clear zone of 48mm in Actinomycetes. Larger clear zone was formed in the order of caffeic acid, benzoic acid and ρ -coumaric acid among the nine chemical compounds. Accordingly, the antimicrobial activity of Ambrosia artemisiifolia var elatior against Actinomycetes was found to be due to the synergetic effect of chemical compounds.

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