• 한국환경복원기술학회지
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• 제11권5호
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• pp.25-37
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• 2008

A field survey was performed at the Human-made Wetlands along Boknaecheon of Juam Lake from March 2004 to October 2007 for the purpose of investigating changes of flora for 4 years since its creation. A total of 15 species including 10 families, 13 genera, 12 species and 3 varieties were planted at the Human-made Wetlands along Boknaecheon of Juam Lake which was completed in December 2002. The survey conducted in 2004, 15 months after creation of the Human-made Wetlands, revealed a flora composed of 47 families, 102 genera, 112 species and 19 varieties, 131 taxa in total. In 2007, further increase was registered with 46 species added compared to 2004 reaching 177 species in total. A 4-year monitoring of naturalized plants showed that no quick but constant increase was featured yearly in their number of species with 12 in 2004, 17 in 2005, 18 in 2006 and 19 in 2007. As for changes in life form, 13 species of perennial plants and 2 woody species, 15 in total, were planted initially but, in the survey 2004, 1- or 2-year old therophytes numbered 73, perennial plants 54 and woody species 4, indicating a large change of life form accompanied with increase in overall number of species. The number of 1- or 2-year old therophytes and perennial plants featured a steady increase each year from 2005 to 2007. The distribution ratio of 1- or 2-year old therophytes, however, showed a gradually decreasing tendency while perennial plants tended to increase, instead. As evidenced in changes of flora at the Human-made Wetlands, most of species in it have been determined to be fit or not within 1 to 2 years after its creation and, since the stable settlement of these species onward, its life forms have undergone stepwise changes together with the number of species and individuals in parallel with repeated extinction and penetration of plants.

• Journal of Microbiology
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• 제44권5호
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• pp.480-491
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• 2006

As part of the long-term monitoring projects on Antarctic terrestrial vegetation in relation to global climate change, a lichen floristical survey was conducted around the Korean Antarctic Station (King Sejong Station), which is located on Barton Peninsula, King George Island, in January and February of 2006. Two hundred and twenty-five lichen specimens were collected and sixty-two lichen species in 38 genera were identified by morphological characteristics, chemical constituents, TLC analysis and ITS nucleotide sequence analysis.

• 한국자원식물학회지
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• 제28권4호
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• pp.456-474
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• 2015

We have investigated the flora of Yeongheungdo Island in Ongjin-gun, Incheon. A total of 13 separate field trips were carried out from March 2012 to October 2013. As a result, 302 taxa including 80 families, 211 genera, 261 species, 6 subspecies, 31 varieties and 4 forms were identified. These include the following: 1 taxon protected under the Act on the Protection and Management of Wildlife, 3 Korean endemic taxa, 8 floristic indicator species including 2 taxa of grade V, 3 of grade II and 3 of grade I, 33 naturalized taxa with the naturalization rate of 10.9% and 1 northern taxon vulnerable to climate change.

• 한국수산과학회지
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• 제12권1호
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• pp.19-26
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• 1979

패류에서 저온성 대장균군의 위생학적 의의 및 패류의 위상상태를 평가하기 위한 자료를 얻고자 1978년 1월부터 12월까지 매월 참굴, 바지락, 홍합, 고막을 시료로하여 실험한 결과를 요약하면 다음과 같다. 1. 균수의 범위는 생균수가 $1.3\times10^3-2.5\times10^6/g$, 대장균군이 $>\~5.5\times10^2/g$, E. coli MPN이 $2\~9$. $2\times10^2/100g$으로 생균수는 4월에서 10월사이에는 대부분의 시료에서 패류의 위생학적 기준치를 초과하였고 E. coli 최확수도 7검체에서 초과한 것으로 나타났다. 2. 대장균군 373균주중 298균주가 분류동정되었고 이 가운데서 E. coli 1이 138균주$(46\%)$, K. aerogenes 1이 71균주$(46\%)$였다. 3. $5^{\circ}C$에서 발육가능한 저온성 대장균군은 분리균 373균주중에서 186균주로 $50\%$였다. 4. 세균 flora는 분리균 453균주 가운데서 Vibrio가 240균주$(53\%)$, Pseudomonas가 91균주$(20\%)$로 이들 2균속이 우세한 세균류를 구성하고 있었다. 5. 세균류의 계절적 변동은 Vibrio가 5월에서 10월사이 분포도가 높은 경향을 나타냈고 Moraxella 동계아만 검출되었으며 그 외의 균속은 큰 변동이 보이지 않았다. (본 연구는 1977년도 문교부 학술연구 조성비에 의한 것임).

• Environmental Analysis Health and Toxicology
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• 제1권1호
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• pp.71-76
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• 1986

The determination of fungal flora in some kinds of cereals have been carried out in other to obtain an appropriate information of the population of fungi and toxin productivity The results were summarized as follow; 1. The predominant genera were Aspergillus, Penicillium, Mucor, Rhizopus, Alternaria, Fusarium. 2. Six of Aspergillus flavus were aflatoxin-producing strains. 3. Sample barleys were found to contain the highest content of aflatoxin. 4. In electron microscopic studies of liver cells from mouse which had been injected with crude toxin, the liver cells showed the cytoplasmic change.

• 수산해양교육연구
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• 제25권6호
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• pp.1336-1347
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• 2013

The marine algal flora assemblages settled on the artificial seaweed reefs in Jeju-do before and after rocky cleaning were investigated during summer and the early succession of seaweeds attached to the test panels on the structures of the artificial reef after rocky cleaning were observed by visual observations and under the dissecting microscope in order to evaluate the effects of this rocky cleaning operation. Species composition and algal biomass on the Bboolsamgak-typed seaweed artificial reefs before and after rocky cleaning were measured and compared before and after rocky cleaning. Before rocky cleaning in July 2012, only nine algal species had existed on the Bboolsamgak-typed seaweed artificial reefs, however, twenty algal species occurred on the seaweed artificial reefs after rocky cleaning in July 2013. Particularly, 15 species among them in July 2013 were not found in July 2012 and they seemed to occur newly on the artificial reefs. A large quantity of algal biomass increased in July 2013 after rocky cleaning. Based on the importance value, there was a drastic change in the dominant species between July 2012 and July 2013 after rocky cleaning. By dissecting micrographs, an epiphytic diatom, Licmophora sp. and flagellates, were observed on the 9th day. A chlorophyte, Ulothrix flacca was observed after 14 days, Ulva pertusa, Bryopsis pulmosa, crustose coralline algae, and Cladophora spp. were after one month. After two months, a significant species succession was observed from three previous chlorophyte species to crustose coralline algae existed as a dominant species on the panels. In this study, however, any brown algae were not found until three months in the early seaweed succession. All above results indicates that the rocky cleaning is a very efficient method for the establishment of macroalgal assemblages on the artificial reefs.

• 한국자원식물학회지
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• 제19권5호
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• pp.586-591
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• 2006

본 조사는 해안 도서지방인 신안군 임자도를 중심으로 이 지역에 분포하는 귀화식물상과 주요군락의 변화에 대하여 조사하였다. 조사된 귀화식물은 1999년에는 14과(科) 45종(種), 2005년에는 14과(科) 54종(種)이 조사되었다. 그 결과 본 조사에서 능수참새그령, 들묵새, 미국개기장, 창명아주, 유럽점나도나물, 어저귀, 비짜루국화, 큰금계국, 노랑코스모스 등 9종이 추가로 조사되었다. 귀화식물군락은 군락조성표에 따라서 미국자리공군락, 개보리군락, 개망초-망초군락, 달맞이꽃군락, 물참새군락, 들묵새군락, 노랑코스모스군락으로 분류되었으며 주요군락의 분포면적이 변화하고 있었다. 이러한 귀화식물군락의 주요 분포지역은 귀화식물의 서식지 특성상 인가와 도로주변의 인위적인 영향을 많이 받고 있는 지역을 중심으로 군락을 이루고 있었다.

• 한국환경복원기술학회지
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• 제10권3호
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• pp.8-13
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• 2007

This study was surveyed to know changing flora between pre and post of restoration in cheonggyechon. As results, it was surveyed families 33, species 94 in 2003 and families 39, species 156 in 2005. In 2006, it was surveyed families 38, species 171. This result shows that cheonggyechon is unstable initial condition in restored stream ecosystem. Also, Naturalized species was 19 species in 2003 and it was respectively 44, 46 species in 2005, 2006. Hazard species of ecosystem was in common 3 species in three surveys. Recently, as time goes by, introduced species are increasing. And succession has mainly been progressed by one year or binary herbs. To administer restored stream ecosystem, monitoring is essential. Therefore, continuous monitoring about Naturalized species and Hazard species of ecosystem is also very important. Further, Because change of vegetation on pre and post of Restoration in Cheonggyechon Stream is very important, Monitoring will have been surveyed continuously.

• 수산해양교육연구
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• 제28권1호
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• pp.83-90
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• 2016

A subtidal marine benthic algal vegetation at Ulleungdo Island, the eastern coast of Korea was investigated to clarify the community structure and vertical distribution by quadrat method at seven stations in May and August 2014. The total number of marine algal species was 148 species composed of the green algae of 12 species, the brown algae of 40 species and the red algae of 96 species. Mean biomass in dry weight was $94.8g\;dry\;weight\;m^{-2}$ in study sites, $98.1g\;dry\;weight\;m^{-2}$ in upper tidal level, and $86.6g\;dry\;weight\;m^{-2}$ in middle level. The R/P and (R+C)/P value reflecting flora characteristic were 1.9 and 2.3, respectively. Three groups produced by cluster analysis, one including sites Neunggeol, Daepung, Jukdo, second including sites Gongam, Ssangjeongcho and the other including sites Gwaneum, Hangnam, showed meaningful difference in similarity (about 40%), each other. The number of marine algal species and biomass in Ulleungdo Island area were markedly reduced comparing that in the previous studies. This result may suggest probably change of algal vegetation in future, considering the physical and chemical pollutions loaded in the coastal marine environment of this area.

• 환경영향평가
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• 제11권3호
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• pp.129-143
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• 2002

This study was executed environmental assessment to determine whether or not the national landuse planning change on the reserved area for a rope way in the ice valley(Eoreurngol) of Miryang. The selected survery area is $1,633,442m^2$ and assessed with flora, actual vegetation, degree of green naturality(DGN), sere stage and wild birds. The flora was summarized as 132 taxa which is 90 genera, 117 species, 12 varieties and 3 forms. The actual vegetation was classified 24 types and nature forests like Quercus and deciduous-broad leaf community was distrubuted broadly. Especially Quercus and deciduous-broadleaf communities were assessed high rarity value in Miryang. From the analysis of DGN, it were found out that DGN 8 is 72.5% and DGN 9 is 3.9%. At the analysis of sere stage, the communities were divided 4 with Quercus mongolica, Pinus densiflora, Carpinus laxiflora and deciduous-broadleaf community. Wildbirds was observated as 30 species and 161 ea and Aix galericulata (natural monument no. 327) especially inhabited there. From the above nature ecosystem assessment, the survey area has high quality naturalness, so it was turned out that a rope way construction might be not suitable in survery area.