• Proceedings of the Zoological Society Korea Conference
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• 1995.10b
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• pp.174.1-174
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• 1995

No Abstract, See Full Text

• Korean Journal of Environment and Ecology
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• v.31 no.4
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• pp.365-380
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• 2017

Rapid changes in the flora of exotic species are ecological problems that cause the alteration of national and regional biota. The purpose of this study is to identify the reality of neophyte flora currently inhabiting in Korea. Having analyzed a total of 151 studies published up until 2016, we found the qualitative and quantitative gaps among the preceding studies due to the lack of rigorousness on the application of the spatial and temporal level of exotic species and academic terminology. In this study, the neophyte is defined as the flora introduced temporarily after the Enlightenment in Korea (late 19th century) and spatially in the Eastern Asiatic Province of the Takhtajan's floral region instead of a country boundary. A total of 326 taxa of 184 genera of 39 families were identified and analyzed for their distributional origin and habitat characteristics. Approximately 87% (285 taxa) was a component of the single-layered herb vegetation, and a total of 211 taxa originated from Europe and North America which are the same temperate biome as Korea. The wetland vegetation components were much fewer with 21 taxa, but they included a large number of invasive alien species that caused critical deterioration in the habitat structure and function of aquatic ecosystems. Ecological approaches to exotic species categories such as Ephemerophyten and Apophyten have emerged.

• Journal of Life Science
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• v.6 no.2
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• pp.87-93
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• 1996

귀화식물인 미국자리공의 군락 구조와 무기환경요인을 추적하였다. 서식지 식생은 Pinus densiflora, persicaria perfoliata, Miscanthus sinensis, Smilax china, Rubus crataegifolius, Paederia scandens, Rosa multiflora, Commelina communis, Carex lancelolatl가 우점 하였으며 파괴된Pinus densiflora 아극상 감림군략에 침임하여 적응한 형태였다. 서식지 토양의 속성은 pH 4.6의 높은 산도, 높은 중금속과 유기물 함량이 특징적이었으며 이는 전형적인 황지식물군락의 환경요인이었다. 생장조절실 내에서 수행한 제한요인 처리에 의해 나타나는 유식물의 피해반응은 인공산성비에 의한 pH2.0과 500Lux의 광도에서 나타났으며 일시위조점은 pF2.6-2.7에서, 그리고 영구위조점은 pF2.8-2.9에서 각각 나타났다.

• Journal of Life Science
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• v.8 no.2
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• pp.131-136
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• 1998

Tje dispersion and adaptation of the recently immograted plant, prickly lettuce (Lactuca serriola), were studied. The distribution of prickly lettuce was limited to south of the central districts of the Korean peninsula. The distrbution range is being diffused contimnuously by manual transportation. The 10 selected sites showed typical road side vegetation of an early successional stage; tje quadrats had 90% herbaceous cover, 5% shrub cover, and no tree cover. Dominant species were Kummerowia stipulacea, Ixeris chinensis, Ambrosia artemisiifolia, Lactuca indica, Toungia sonchifolia, Cephalonoplos segetum, Rubus parvifolius, Izeris polycdphala, Hemistepta lyrata, Cercis chinensis Artemisia capillaris. The investigated sites were divided into 4 patterns based on vegetation with high dissimilarity. The presence of mant patterns, despite high livels of differences, indicated that the characteristic prickly lettuce communities were not yet formed.

• Korean Journal of Plant Resources
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• v.30 no.4
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• pp.399-409
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• 2017

The rapid increase of naturalized plants causes disturbance of the ecosystem. The purpose of this study is to identify the reality of naturalized flora in Jeolla-do. A total of 830 sites were studied in 2016. These naturalized plants consisted of 189 taxa in total, belonging to 38 families, 116 genera, 181 species, 2 forms and 6 varieties. According to the results of the analysis based on place of origin, 75 taxa were from Europe, and 59 taxa were from North America. According to the analysis of the ecological characteristics, compositae had the highest diversity among 31 families, with 44 taxa, followed by Gramineae, with 24 taxa, and Leguminosae, with 10 taxa. Naju-si had the highest diversity among 36 counties, with 77 taxa. This study identified 37 (Jeollanam-do) and 30 taxa (Jeollabuk-do) not listed in the preceding literature in Jeolla-do. We found a lots of differences between flora's databases of previous studies resulting from the naturalized plant definition.

• Korean Journal of Plant Resources
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• v.30 no.2
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• pp.176-190
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• 2017

South Korea is the northernmost distributional territory on the Camellietea japonicae (evergreen broad-leaved forests of the warm-temperate zone) in East Asia. A total of 40 stands were collected in terms of an ecologically-naturalized wild tea population (WTP), and their species composition was analyzed by $Z{\ddot{u}}rich$-Montpellier School's method with preliminary regard to forest canopy idendtification. Stand types were characterized by ecological flora's criteria such as Raunkiaer's life-form, neophyte, zonal distribution, and nativeness of species. Expansion of WTP distribution into the interior of the peninsula was recognized, than expected. The highest and northernmost WTPs have been recorded at Mt. Palgong, Daegu (390 m a.s.l.) and Iksan Jeonbuk (latitude $36^{\circ}$ 03' 33''), respectively. Altitudinal and latitudinal WTP distribution of Korea under continental climate shows lower than Japanese situation under oceanic climate. Community structure generally involved a few human interferences. Syngeographically WTP distribution was limited on the warm-temperate zone and the southernmost cool-temperate southern submontane zone. First driving force on distributional expansion of the WTP was anthropogenic, particularly in the northernmost distribution area. We finally confirmed an actual existence of the WTP in South Korea and suggested a long-term monitoring on the WTPs in national view of in-situ genetic resources with higher frost-resistance.