• 한국자원식물학회지
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• 제32권1호
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• pp.63-71
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• 2019

Two unrecorded alien plants, Melilotus officinalis (L.) Lam. and M. indicus (L.) All. (Leguminosae) were found in Korea. M. officinalis is native to Eurasia and widely distributed in agricultural regions throughout the world. M. indicus is native to Mediterranean and Southwestern Europe, and naturalized in temperate regions all over the world. These species are morphologically similar to M. suaveolens (Jeon-dong-ssa-ri). However, M. officinalis is distinguished from M. suaveolens by transverse nerved legumes, definite ovary stalks, and five to eight number of ovules in ovary. M. indicus is also distinguished from M. suaveolens by smaller size of flowers, broadly triangular calyx teeth, globose legumes, and minutely papillose seeds. The local name of M. officinalis and M. indicus were given as "Ju-reum-jeon-dong-ssa-ri" and "Jom-jeon-dong-ssa-ri" based on transverse nerved legumes and overall smaller size than M. suaveolens, respectively. The descriptions on morphological characters and photographs at the habitat of M. officinalis and M. indicus are provided.

• 한국응용곤충학회지
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• 제57권4호
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• pp.323-328
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• 2018

외래침입종이 자생종에 미치는 잠재적인 영향에 관하여 세계적인 관심이 증가하고 있음에도 그러한 침입의 결과들은 여전히 부족한 실정이다. 유럽좁쌀바구미(cabbage seedpod weevil, CSPW, Ceutorhynchus obstrictus)는 1990년대 초에 한반도에 침입하였다. 침입 후 20여 년 동안 관찰과 2010년 이후 중점적인 조사를 통해 유채 꽃에서 침입종인 유럽좁쌀바구미가 가장 우점을 이루고 있으며, 제주도와 울릉도를 포함한 남한 전역으로 확산되어 있다. 그의 확산은 자생종인 유채좁쌀바구미(rapseed weevil, RSW, C. albosuturalis)의 냉이 등 십자화과 잡초로 서식처 후퇴가 맞물려 일어나고 있다. 한편, 한반도와 제주도 사이에 위치한 여서도는 현재 그들의 비율이 약 1:1로 나타나고 있어 이 섬에는 유럽좁쌀바구미가 최근에 유입된 것으로 보인다. 자생종의 생태적 지위(ecological niche)가 외래침입종으로 대체되는 근본적인 기작은 확실하게 알 수 없지만, 자원경쟁(exploitative competition)의 잠재적인 역할을 배제할 수는 없을 것이다. 자연생태계 내에서 외래침입종이 자생종을 신속하게 대체하고 있음을 확인한 이 결과는 앞으로 또 다른 외래종의 침입 방지 노력을 요구하고 있다.

• Journal of Ecology and Environment
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• 제45권1호
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• pp.24-39
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• 2021

Background: To address the lack of evidence supporting invasion by three invasive plant species (Imperata cylindrica, Lantana camara, and Chromolaena odorata) in tropical ecosystems, we compared the ecophysiological and leaf anatomical traits of these three invasive alien species with those of species native to Sempu Island, Indonesia. Data on four plant traits were obtained from the TRY Plant Trait Database, and leaf anatomical traits were measured using transverse leaf sections. Results: Two ecophysiological traits including specific leaf area (SLA) and seed dry weight showed significant association with plant invasion in the Sempu Island Nature Reserve. Invasive species showed higher SLA and lower seed dry weight than non-invasive species. Moreover, invasive species showed superior leaf anatomical traits including sclerenchymatous tissue thickness, vascular bundle area, chlorophyll content, and bundle sheath area. Principal component analysis (PCA) showed that leaf anatomical traits strongly influenced with cumulative variances (100% in grass and 88.92% in shrubs), where I. cylindrica and C. odorata outperformed non-invasive species in these traits. Conclusions: These data suggest that the traits studied are important for plant invasiveness since ecophysiological traits influence of light capture, plant growth, and reproduction while leaf anatomical traits affect herbivory, photosynthetic assimilate transport, and photosynthetic activity.

• 한국자원식물학회지
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• 제34권1호
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• pp.89-97
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• 2021

한반도 미기록 외래식물인 작은잎물통이(쐐기풀과)와 남방향유(꿀풀과) 2분류군을 발견하였다. Pilea microphylla (L.) Liebm.는 서울시 및 제주도에서 관찰되었으며, Elsholtzia griffithii Hook. f.는 인천시에서 확인되었다. P. microphylla는 잎이 주걱형 또는 도란형이며, 길이는 2-7 mm로 작고 가장자리 전체가 밋밋한 특징에 의해 국내 자생하는 근연분류군과 구별된다. E. griffithii는 수상화서, 3 mm 길이의 좁은 피침형의 포와 약 2.5 mm의 상대적으로 짧은 화관을 갖는 특징으로 구별된다. 따라서, 본 논문에서는 한반도 미기록 외래식물 2분류군에 대한 국명, 종기재문, 사진 제공 및 검색표를 제시하였다.

• 한국자원식물학회지
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• 제19권2호
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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.

• 한국환경복원기술학회지
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• 제19권2호
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• pp.19-39
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• 2016

This study was carried out to investigated the flora of Naknam-Jeongmaek, Korea. The survey sites were Gilmajae, Mt. Muryang, Mt. Yeohang, Mt. Muhak, Mt. Cheonju and Mt. Sineo. The flora were summarized, numbering 666 taxa including 112 families, 357 genera, 574 species, 4 subspecies, 73 varieties and 15 forms. The threatened species was Aconitum austrokoreense. The rare plants were 12 taxa including Asarum maculatum, Wikstroemia ganpi, Viola albida, Tricyrtis macropoda and so forth. The Korean endemic plants were 19 taxa including Salix koriyanagi, Thalictrum actaefolium var. brevistylum, Weigela subsessilis, Hosta minor and so forth. The specific plants by floristic region were 81 taxa including 38 taxa of grade I, 19 taxa of grade II, 16 taxa of grade III, 7 taxa of grade IV and 1 taxa of grade V. The naturalized plants were 32 taxa including Rumex crispus, Physalis angulata, Erechtites hieracifolia, Taraxacum officinale and so forth. The invasive alien plants were Ambrosia artemisiifolia and Aster pilosus.

• 한국환경복원기술학회지
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• 제20권5호
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• pp.15-41
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• 2017

The purpose of this study is to present the basic data for conservation of forest ecosystem by surveying and analysing the flora distributed in Nakdong-Jeongmaek Mountains, Korea. The numbers of flora were 901 taxa including 116 families, 433 genera, 790 species, 4 subspecies, 90 varieties, 15 forms and 2 hybrids. The threatened species was Pedicularis ishidoyana. The rare plants were 33 taxa including Pseudostellaria sylvatica, Cimicifuga heracleifolia var. bifida, Isopyrum mandshuricum, Paeonia japonica, Syringa patula var. kamibayshii, Lilium distichum, Iris odaesanensis and so forth. The Korean endemic plants were 35 taxa including Salix koriyanagi, Thalictrum actaefolium var. brevistylum, Corydalis maculata, Lespedeza maritima, Cirsium setidens, Carex okamotoi and so forth. The specific plants by floristic region were 155 taxa including 55 taxa of grade I, 41 taxa of grade II, 36 taxa of grade III, 18 taxa of grade IV and 5 taxa of grade V. The naturalized plants were 62 taxa including Rumex obtusifolius, Amaranthus lividus, Medicago sativa, Geranium carolinianum, Malva sylvestris var. mauritiana, Foeniculum vulgare, Sonchus oleraceus, Tradescantia reflexa and so forth. The invasive alien plants were 5 taxa including Rumex acetocella, Solanum carolinense, Ambrosia artemisiifolia, Aster pilosus and Lactuca scariola.

• 한국자원식물학회지
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• 제31권1호
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• pp.52-55
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• 2018

제주특별자치도 서귀포시 안덕면에서 국내 벼과 미기록 외래식물인 날개카나리새풀(Phalaris paradoxa L.)을 발견하였다. 이 종은 유럽 지중해 원산으로, 전 세계에 분포하고 있다. 한국에 분포하는 동속 식물인 갈풀, 카나리새풀, 애기카나리새풀, 흰줄갈풀에 비해 6개의 불임성 소수가 1개의 임성 소화를 감싸고, 포영상부에 치아상의 날개가 발달하는 특징을 가지고 있다. 국명은 이러한 특징을 바탕으로 날개카나리새풀로 신칭하였고, 이에 대한 기재, 사진 및 검색표를 제시하였다.

• Ecology and Resilient Infrastructure
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• 제4권3호
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• pp.156-168
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• 2017

도로 및 철도 건설과 같은 선형개발은 외래생물의 확산에 중요한 요인으로 고려된다. 본 연구는 도로사업 수행이 외래식물 유입에 미치는 영향을 파악하기 위하여, 한강유역환경청 관할 사업 (80개 사업) 중 현재 공사가 70% 이상 진행 중이거나 완공된 도로사업장을 대상으로 공정률에 따른 외래식물 변화를 연구하였다. 공정률은 공사 전 (P0)과 공사 중 (P25, P50, P75, P100)의 5단계로 구분하였다. 공사가 진행됨에 따라 귀화율, 도시화지수 및 외래식물 종수가 증가하였다. 특히 외래식물은 공사 초기에 급속히 유입되고 유입종은 공사가 완료될 때까지 지속적으로 출현하는 경향이었다. 그러므로 도로사업장의 외래식물 관리를 위하여 공사 초기에 성토 공정과 식생복원 공정을 집중관리하여 외래식물 유입을 최소화시킬 필요가 있다고 생각된다.

• Journal of Ecology and Environment
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• 제42권4호
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• pp.259-264
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• 2018

Background: Revegetating landfills can be a challenging task as the reclaimed soils are typically dry and have low nutrient content. Therefore, selecting suitable plant species is important for initial revegetation. The issue with current practices (in Korea) is that alien plant species have been typically selected for revegetation projects. In this context, this study selects and tests a set of native plant species for landfill revegetation, accompanied by the assessment of the landfill soils. Results: The soil of the landfill (landfill location) was in a very poor condition with high bulk density and low organic matter and nutrient contents. Among 10 tested species, only Brassica campestris showed high coverage and a sufficient number of individuals in study quadrats sown with seeds. Results suggest that plant species with heavy seeds are the only ones that can adapt to the environment of a typical landfill due to the site's aridity and low nutrient content. The reason is due to such species' superior wind resistance and the capacity to provide sufficient energy for the initial growth of the plants for survival in such landfill environment. Conclusions: This study recommends selecting plant species (1) with arid-adapted features and (2) whose seed weight is sufficiently heavy for survival at landfills or areas with a similar condition for future revegetation.