• 제목/요약/키워드: Exotic plants

검색결과 126건 처리시간 0.025초

사면(斜面) 녹화용(綠化用) 외래초종(外來草種)의 혼파조합(混播組合)에 관(關)한 연구(硏究) (A Study on the Mixed-Seeding Rates of Exotic Grasses for Slope Revegetation Measures)

  • 전기성;우보명
    • 한국환경복원기술학회지
    • /
    • 제1권1호
    • /
    • pp.102-109
    • /
    • 1998
  • This study was conducted to find out the growth characteristic of mixed-seeding in the grasses for slope revegetation measures. Seeding treatment with six combination types of five grasses used for this experiment such as orchardgrass(Dactylis glomerata 'Potomac'), perennial ryegrass(Lolium perenne 'Manhattan'), tall fescue(Festuca arundinacea 'Jaguar'), kentucky bluegrass(Poa pratensis 'Majestic') and weeping lovegrass(Eragrostis curvula). The growth of orchardgrass, perennial ryegrass and tall fescue were good on mixed-seeding condition in case of number of individuals, heights and coverages at this experiment. These plants will useful for revegetation measures mixed-seeding, but weeping love grass and kentucky bluegrass did not show a desirable growth in mixed-seeding condition, and these plant prefered mixed seeding to single seeding. Regeneration percents of orchardgrass, perennial ryegrass and tall fescue were higher than that of weeping love grass and kentucky bluegrass, and coverage kept on good condition through one year after seeding, therefore, these plants will effective for initial stage revegetation measures.

  • PDF

훼손 비탈면의 생태복원녹화를 위한 종자배합량의 계절별 가중치에 관한 연구 (Seasonal Weight in Seeding Mixture for the Restoration and Revegetation of the Disturbed Slopes)

  • 허영진;안태영
    • 한국환경복원기술학회지
    • /
    • 제9권1호
    • /
    • pp.41-54
    • /
    • 2006
  • In case of leaving artificial slopes resulting from large-scale constructions, there may be secondary damage caused by soil loss due to erosion and collapse. Furthermore, slope-restoring constructions have a few problems such as monotonous landscape and difficult succession of secondary vegetation due to reckless use of exotic grass, despite attaining the initial purpose of revegetation. To settle this problem, selected plants deemed to be proper for revegetation were used on one of thin vegetation base methods, CODRA SYSTEM, and made seeding mixture experimental plots considering germination rates differing in each season. Native herbs, native shrubs and exotic herbs contents were increased by 30% and 50% respectively, centered on seeding quantity(30g/$m^2$) used as design standard in the seed spray method, in order to figure out proper quantity for revegetation in each season.

Phytophthora Species, New Threats to the Plant Health in Korea

  • Hyun, Ik-Hwa;Choi, Woobong
    • The Plant Pathology Journal
    • /
    • 제30권4호
    • /
    • pp.331-342
    • /
    • 2014
  • Given the lack of a resistant genetic pool in host plants, the introduction of exotic invasive pathogens can result in epidemics that affect a specific ecosystem and economy. Plant quarantine, which is designed to protect endemic plant resources, is a highly invaluable safeguard that should keep biosecurity with increasing international trade and global transportation. A total of 34 species of plant pathogens including Phytophthora infestans were documented as introduced from other countries into Korea from 1900 to 2010. The genus Phytophthora, classified in oomycetes, includes more than 120 species that are mostly recognized worldwide as highly invasive plant pathogens. After 2000, over 50 new species of Phytophthora were identified internationally as plant pathogens occurring in crops and forest trees. In Korea, Phytophthora is also one of the most serious plant pathogens. To date, 22 species (about one-fifth of known species) of the genus have been identified and reported as plant pathogens in the country. The likelihood of new exotic Phytophthora species being introduced into Korea continues to increase, thus necessitating intensive plant quarantine inspections. As new potential threats to plant health in Korea, six Phytophthora species, namely, P. alni, P. inundata, P. kernoviae, P. pinifolia, P. quercina, and P. ramorum, are discussed in this review with focus on history, disease, biology, management, and plant quarantine issues.

구담습지 식생의 생태적 특성 및 관리에 관한 연구 (A Study on the Ecological Characteristics and Management of Vegetation in Gudam Wetland)

  • 이일원;김기대
    • 한국습지학회지
    • /
    • 제23권2호
    • /
    • pp.133-143
    • /
    • 2021
  • 본 연구의 목적은 낙동강 수계의 하도습지인 구담습지의 식물군락을 분류하고 식생의 수직적 구조에 따라 군락 특성을 파악하여 관리방안을 마련하는 것이다. 구담습지 식물군락은 식생상관적 분류를 통해 총 19개의 군락이 나타났으며, 식생 수직구조에 따라 교목 우점 군락, 관목 우점 군락, 초본 우점 군락으로 나누어 분석하였다. 군락 특성 분석 결과를 살펴보면, 종다양도 지수는 교목 우점 군락이 가장 높았으나 가시박과 같은 외래식물의 유입으로 종다양도 감소가 우려되었다. 관목 우점 군락은 관목식물의 종수에 의해서 종다양도 지수가 편중된 경향을 보였다. 초본 우점 군락은 종다양도 지수에 의해 습생초지 군락과 건생초지 군락으로 나뉘었고, 인위적인 교란으로 인한 종다양도 지수 감소에 대한 대책이 필요하였다. 중요치는 교목 우점 군락에서는 교목성 버드나무속이 가장 높았고, 관목 우점 군락에서는 족제비싸리와 같은 외래식물의 중요치가 높았다. 또한, 초본 우점 군락에서는 달뿌리풀과 같은 습생초지식물이 높았다. 서열법에 따른 분석결과, 교목 우점 군락과 관목 우점 군락은 외래식물 종수에 의해서 군락이 분화되었고, 초본 우점 군락은 계층 수와 경사도에 의해서 군락이 분화되었다.

조선왕릉에 분포하는 관속식물상의 특성 - 광릉을 중심으로 - (The Characteristics of Vascular Plants Distributed in Royal Tomb of the Joseon Dynasty - Focused on Gwangneung -)

  • 오현경;김은옥;유주한
    • 한국전통조경학회지
    • /
    • 제37권1호
    • /
    • pp.41-55
    • /
    • 2019
  • 본 연구는 조선왕릉 광릉에 분포하는 관속식물상을 조사 및 분석하여 전통경관과 생태환경을 보전 및 관리하기 위한 기초 자료제공에 목적이 있다. 연구결과를 요약하면 다음과 같다. 관속식물상은 97과 274속 384종 4아종 49변종 9품종 등 446분류군이며, 식재종은 은행나무, 잣나무, 주목 등 34분류군이다. 중국굴피나무, 일본목련과 같은 외래종은 전통경관 관리를 위해 제거되어야 할 것이다. 희귀식물은 총 7분류군으로, 멸종위기종(CR)은 2분류군, 취약종(VU)은 2분류군, 약관심종(LC)은 3분류군이다. 한국특산식물은 참개별꽃, 흰괭이눈, 고광나무, 민땅비싸리, 오동나무(식재), 병꽃나무, 벌개미취(식재), 좀비비추(식재) 등 8분류군이다. 식물구계학적 특정식물은 총 45분류군으로, V등급은 2분류군, III등급은 12분류군, II등급은 9분류군, I등급은 22분류군이다. 귀화식물은 닭의덩굴, 좀명아주, 족제비싸리, 털별꽃아재비 등 25분류군이며, 생태계교란식물은 돼지풀 1분류군이다. 기후변화 적응 대상식물은 총 9분류군으로, 특산식물은 1분류군, 북방계 식물은 8분류군이다.

봉화군 청옥산에 분포하는 대한민국약전 수재 약용식물의 분포 특성 (Distribution of Medicinal Plants included in the Korean Pharmacopoeia at Cheongoksan Bonghwagun in Korea)

  • 송홍선;김명혜;이거룡;김성민
    • 한국약용작물학회지
    • /
    • 제21권4호
    • /
    • pp.268-275
    • /
    • 2013
  • This text was analyzed and investigated the distribution of medicinal plants in Cheongoksan Bonghwagun Korea, in order to search the medicinal resources that are used in modern medicine. Medicinal plants of the Korean Pharmacopoeia (10th edition) distributed in Cheongoksan Bonghwagun were consisted of 93 taxa ; 82 species, 10 varieties, 1 forma of 79 genus, 50 families. In medicinal plants of the Korean Pharmacopoeia, rate of native species and exotic species was 89.2% (83 taxa) and 10.8% (10 taxa) respectively. Family classification was the most of compositae of 8 taxa, and life form classification was most of herb of hemicryptophyte species. The classification by using parts were 34 taxa of root use and the classification of efficacy utilization was 24 taxa of Cheongyeolyak (heat-clearing drug) use.

우리나라 남부지방(南部地方)에 분포(分布)하는 외래수목조사(外來樹木調査) (A Survey on the Woody Plants Introduced to the Southern Part of Korea)

  • 김삼식
    • 한국산림과학회지
    • /
    • 제26권1호
    • /
    • pp.31-41
    • /
    • 1975
  • 우리나라 남부지방(南部地方)에서 자라는 외래수종(外來樹種)은 62 과(科) 135 속(屬)에 속(屬)하는 203 종(種) 40 변종(變種) 17 form로서 모두 263 종류(種類)이다. 원산지(原産地)는 일본(日本)이 99 종(種) 구주(歐洲) 17, 호주 13, 인도 8, 중앙아세아 5, 태국 1, 멕시코 1, 카나리아군도 1의 순(順)이었고 침엽수(針葉樹)가 42종(種), 쌍자엽(雙子葉) 식물(植物)이 183, 종(種) 및 단자엽(單子葉)이 38 종(種)이 었다.

  • PDF

고속도로 비탈면 식생 모니터링을 통한 녹화공법 평가기준 연구 (A Study on Evaluation Standard for Revegetation Method through Monitoring of Vegetation on the Slope of Expressway)

  • 김경훈;전기성;허영진;박종철;주백;강대인
    • 한국환경복원기술학회지
    • /
    • 제23권6호
    • /
    • pp.57-73
    • /
    • 2020
  • A study was conducted to present the criteria for evaluating the revegetation method of the slope of the expressway. The results of comparative analysis between 2019-2020 field survey and existing research data (2015-2016) are as follows. Soil is a very important factor at the beginning of revegetation work. However, after the plant has settled, the importance of the soil composition diminishes. Among the plants used, the number of plants sown at the beginning gradually decreases. And it changes as it competes with invading plants. Among the plants used for sowing, it was found to affect the vegetation composition in the order of exotic grass > native herb and wildflower > native tree. Plant coverage is continuously evaluated as an important factor regardless of the time. The vegetation structure on the slope will change continuously over time. New items need to be evaluated in situations where a lot of time has elapsed since the application of revegetation work. It is desirable to use the current evaluation standard only to perform the evaluation within 1 to 2 years. In the long run, it is necessary to establish a new evaluation standard that adjusts the weights of each item.

Assessment of Residents' Understanding and Demands on Gardens in Gyeongnam Region, Korea

  • Kim, Inhea;Huh, Keun Young
    • 인간식물환경학회지
    • /
    • 제22권2호
    • /
    • pp.167-180
    • /
    • 2019
  • This study was conducted to investigate effective ways to meet social and cultural interest in and needs of gardens and gardening. A total of 191 respondents who answered they were living in Gyeongnam region in the questionnaire were selected: 102 (53.4%) were males and 89 (46.6%) were females. In frequency of garden visits, 45% of the respondents answered they visited gardens once a year. Their preferred companion was family (43.6%), followed by friends/colleagues (24.3%). Their important motives of garden visits included admiration of gardens' scenery and ambience, pleasure in being outdoors, relaxing mentally and physically, and appreciation of plants. Relatively less important motives included understanding or educating about nature and environmental conservation, and interest in garden design and horticulture techniques. In the overall assessment of gardens and gardening, the quality of the establishment, management and operation of botanic gardens and arboreta in Gyeongnam region scored 3.32 scale, which was close to the level of 'fair.' Also, the respondents agreed at 3.91 scale that it was necessary to improve the garden creation, gardening, and garden culture. Meanwhile, many people in Gyeongnam region did not clearly understand differences between garden and public park, also had a very obscure perception of public garden. The results of importance-performance analysis (IPA) indicated that it is necessary to concentrate on directing and developing some programs such as admiration of beautiful and exotic plants, and education on garden culture including garden making and horticultural techniques.

조경식물의 식재와 이용 - 원주시와 횡성군을 중심으로 - (Analysis of the Planting and Use of Landscaping Plants - Focused on Weonju and Hoengseong -)

  • 원종화;정진형;김창섭;이기의
    • Journal of Forest and Environmental Science
    • /
    • 제21권1호
    • /
    • pp.34-58
    • /
    • 2005
  • 본 연구에서는 강원도 원주시와 횡성군내에 식재 활용 되고 있는 조경 식물의 이용 상황을 조사 분석하여 현재 어떠한 식물이 어떻게 이용되고 있는가를 파악함으로서 그 이용방법에 대한 개선 방안을 모색하고 아울러 원주시와 횡성군의 아름다운 경관 형성을 위한 관리 방법 등을 제시하였다.

  • PDF