• Journal of Plant Biology
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• 제1권1호
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• pp.17-24
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• 1958

The author investigated the plant sociological studies on the flora of Inchon districts coast area. (It contains also province of Buchun, Kumpo, and Hwasung, the island of Kanghwa.) The scenery of the west coast in Korea is very curious, because the soil in this area contains comapratively large amount of mud and small sand. Some parts of this area is covered with only mud, and the area between the line of high tije and line of low tide is very vast. When a low tide was appearel, there were vast moddel places appeared about 10 km in length. The author could distinguish $\varepsilon$ different types of communties in this zone. (1) Suaeda jatonica community (2) Statice japonica community (3) Scirtus triqueier community (4) Zoy_ia community (5) Phragmites community (6) Carex Pumilla community (7) Atriolex subsodata community (8) Rosa rugasa community (1), (2), (3), (4) communities can grow under the high tide. (When the high tide comes they soaked in the sea water.) (1) Suaeda community is the most popular type of the Yellow sea. It is very wonderful scene that the vast area (the length of 10 km) is covered with this Suaeda, and it looks like to be painted with blood. (2) Staice (3) Scirpus (4) Zoysia community is can fully maintain their glorious life in the sea water. It is due to the this plants tolerance of salt. (1), (2), (3), (4) communities are very strong to the tolerance of salt, especially the Suaeda is remarkable. The structure and some sucession I trend of each community were studied in detail and the mutual relations among the communites were also concluded.

• Journal of Ecology and Environment
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• 제43권2호
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• pp.271-281
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• 2019

Background: The plant communities within reservoir drawdown zones are ecologically important as they provide a range of ecosystem services such as stabilizing the shoreline, improving water quality, enhancing biodiversity, and mitigating climate change. The aim of the study was therefore to identify the major environmental factors affecting these plant communities within the drawdown zone of the Soyangho Reservoir in South Korea, which experiences a monsoonal climate, and thereafter to (1) elucidate the plant species responses and (2) compare the soil seedbank composition along main environmental gradients. Results: Two main environmental gradients affecting the plant community structure were identified within the drawdown zone; these were a vertical and longitudinal gradient. On the vertical dimension, a hydrological gradient of flood/exposure, the annual-dominated plant community near the water edge changed to a perennial-dominated community at the highest elevation. On the longitudinal dimension from the dam to the upstream, plant species composition changed from an upland forest-edge community to a lowland riverine community, and this was correlated with slope degree, soil particle size, and soil moisture content. Simultaneously, the composition of the soil seedbank was separated along the vertical gradient of the drawdown zone, with mainly annuals near the water edge and some perennials at higher elevations. The species composition similarity between the seedbank and extant vegetation was greater in the annual communities at low elevation than in the perennial communities at higher elevation. Conclusions: The structures of plant community and soil seedbank in the drawdown zone of a monsoonal riverine reservoir were changed first along the vertical and secondly along the longitudinal gradients. The soil seedbank could play an important role on the vegetation regeneration after the disturbances of flood/exposure in the drawdown zone. These results indicate that it is important to understand the vertical and longitudinal environmental gradients affecting shoreline plant community structure and the role of soil seedbanks on the rapid vegetation regeneration for conserving and restoring the drawdown zone of a monsoonal reservoir.

• Journal of Microbiology and Biotechnology
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• 제20권9호
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• pp.1339-1347
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• 2010

In this study, the identity and distribution of plants and the structure of their associated rhizobacterial communities were examined in an oil-contaminated site. The number of plant species that formed a community or were scattered was 24. The species living in soil highly contaminated with total petroleum hydrocarbon (TPH) (9,000-4,5000 mg/g-soil) were Cynodon dactylon, Persicaria lapathifolia, and Calystegia soldanella (a halophytic species). Among the 24 plant species, the following have been known to be effective for oil removal: C. dactylon, Digitaria sanguinalis, and Cyperus orthostachyus. Denaturing gradient gel electrophoresis (DGGE) profile analysis showed that the following pairs of plant species had highly similar (above 70%) rhizobacterial community structures: Artemisia princeps and Hemistepta lyrata; C. dactylon and P. lapathifolia; Carex kobomugi and Cardamine flexuosa; and Equisetum arvense and D. sanguinalis. The major groups of rhizobacteria were Beta-proteobacteria, Gamma-proteobacteria, Chloroflexi, Actinobacteria, and unknown. Based on DGGE analysis, P. lapathifolia, found for the first time in this study growing in the presence of high TPH, may be a good species for phytoremediation of oil-contaminated soils and in particular, C. soldanella may be useful for soils with high TPH and salt concentrations. Overall, this study suggests that the plant roots, regardless of plant species, may have a similar influence on the bacterial community structure in oil-contaminated soil.

• 한국환경과학회지
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• 제19권8호
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• pp.1047-1055
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• 2010

This research conducted a vegetation survey on Mt. Changbai which are habitats of Papaver radicatum var. pseudoradicatum to obtain a basic data for artificial cultivation. The habitas of P. radicatum var. pseudoradicatum consisted of two communities as Dryas octopetala var. asiatica community and Aconogonon ajanense community. The community units as D. octopetala var. asiatica community and A. ajanense community belong to alpine vegetation in Mt. Changbai. A. ajanense community is distributed around altitude of 2007-2061m, and D. octopetala var. asiatica community is distributed altitude of 2350-2570m at relatively high elevation. According to the correlation between the vegetation structure and elevation. This vegetation structure can be simplified at the herb layer. The vegetation is classified into D. octopetala var. asiatica community and A. ajanense community on the axis 1 basis in the BC ordination analysis. Further, there appeared higher plant life totalling to 40 taxa comprising 35 species, 4 varieties and 1 forma with 20 families and 34 genuses at the whole survey area. Among these, Cyperaceae and Ericaceae plants excellent in resistance to environment was surveyed the most, accounting for 16%.

• 한국환경생태학회지
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• 제11권4호
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• pp.450-461
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• 1998

설악산국립공원 내설악에 위치하는 백담계곡 산림의 식물군집구조를 분석하기 위해 52개 조사구를 설정하고 연구를 수행하였다. DCA 분석결과 소나무군집, 낙엽활엽수혼효림, 졸참나무군집, 서어나무군집, 신갈나무군집으로 분리되었다. 졸참나무군집은 서어나무군집으로 천이가 진행될 것이며, 소나무군집, 낙엽활엽수혼효림, 신갈나무군집은 그대로 유지될것으로 예측되었다. 온대북부림지역인 본 연구대상지의 서어나무군집은 졸참나무군집에서 천이가 진행된 것으로 추측되었는데 이는 온대중부림의 전형적인 생태적 천이경향과 유사하였다. Shannon의 종다양도 경우 0.9827~1.2946(단위면적: 400m$^2$)으로서 우리 나라 다른 국립공원지역보다 비교적 높았다.

• 한국조경학회지
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• 제20권4호
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• pp.1-11
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• 1993

This study was conducted to investigate the plant community structure and to propose ecological management planning for the urban forest on Sungdongku, Joongku and Yongsanku in Seoul. Field survey was excuted October 1991 and the results were as follows. Robinia pseudoacasia community covered 61.1% and Populus x albaglandulosa covered 3.8% of survey site II and survey site was covered by the deciduous-broad leaf mixtured forest. According to the human impact and inappropriate management impact, survey area was divided into five forest community. As for the analysis of plant community structure which was classified into five forest community, the importance values, ecological diversity, number of species, number of individuals, basal area and crown coverage of the native plant community showed relatively higher than community that vegetation deterioration degree by the human impact showed seriously. In landscape forest of Mt. Daehyun, it showed problems for the planting method and the soil condition. So it was proposed to management guide, vegetation restoration and soil management through ecological management planning based on above results.

• Ocean and Polar Research
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• 제39권2호
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• pp.125-148
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• 2017

This study analyzed the community structure of macrobenthic organisms in the subtidal area suffering under the influence of thermal discharge from the Uljin nuclear power plant during 2012-2013 and reviewed the temporal change in the faunal composition of the macrobenthic community using data from previous studies since the start of the plant operation in 1989. A total of 319 species were collected in 2012-2013, with a mean density of $3,330ind./m^2$ and a mean biomass of $131.96g/m^2$. These results were similar to those obtained in 2006-2007. The dominant species were not different from each other before and after the power plant operations began, but the faunal density near the power plant drainage port was significantly higher compared to those densities obtained from other stations. Spiophanes bombyx and Polydora sp., which is known as a pollution indicator species, was dominant only in the drainage port area. The study area consisted of two subregions with different macrobenthic communities depending on the water depth, which was similar to the results of the 2006-2007 survey. The macrobenthic community structures before and after the operation of the power plant in the coastal area were not changed, but there were seasonal differences in the long-term macrobenthic community structure which were strongly related to the thermal discharge from the power plant.

• 한국태양에너지학회 논문집
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• 제34권6호
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• pp.19-25
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• 2014

Alternative sources of energy take a higher interest in order to reduce the greenhouse gas under the Climate Change Convention, fossil fuel consumption, and lower social anxiety about nuclear power such as crisis involving the Fukushima plant, problem of obsolete equipment. The energy consumption of agriculture, forestry and fisheries in South Korea is 3,082,000toe by 2011, reliance on electrical energy(35%) and oil(57.2%) is very high with 92.2%. In this study, we examined reserves and available capacity of temperature difference energy for thermal discharge from plant, treated sewage, river water, dam, and agricultural reservoir in rural community. Reserves of unutilized energy are 455,735Tcal/yr in rural community, these accounts for 78% of total reserves 582,385Tcal/y. Thermal discharge from plant has the most reserves of unutilized energy in rural community, it is estimated that it has the reserves of 277,410Tcal/y. Available capacity of unutilized energy in rural community is total 134,147Tcal/y, thermal discharge from plant available for heating is the most 128,035Tcal/y, and it shows in the order of treated sewage 4,318Tcal/y, river water 1,653Tcal/y, and reservoir 141Tcal/y. Elevating temperature area of green house by 2012 is 21,208ha. The amount of energy required for heating the greenhouse a year is dbout 11,365Tcal/y with 8.5% of the total available capacity of unutilized energy.

• 한국약용작물학회지
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• 제15권5호
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• pp.357-361
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• 2007

This study was conducted to evaluate the vegetation structure of the Peucedanum japonicum community by the phytosociological method of floristic composition table and cluster analysis on the southern coast of Korea. The vegetation of the Peucedanum japonicum community was classified mainly into 2 communities such as the Miscanthus sinensis community and the Lysimachia mauritiana-Rosa wichuraiana community. The Carex boottiana and Sedum oryzifolium community were classified as the lower rank of Miscanthus sinensis community. On level 1 of the cluster analysis of plant species, they were classified into Lysimachia mauritiana and Rosa wichuraiana group, also Miscanthus sinensis, Carex boottiana and Sedum oryzifolium in Peucedanum japonicum community, which is similar to the community classification shown in the synoptic table. On level 1 of the cluster analysis of relev, inland coast with Jejudo was Lysimachia mauritiana and Rosa wichuraiana of group such as level 1 of the cluster analysis of plant species, and island coast with Geomundo was Miscanthus sinensis Carex boottiana and Sedum oryzifolium of group such as cluster analysis of plant species.

• 한국환경생태학회지
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• 제22권4호
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• pp.453-460
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• 2008

본 연구는 상관에 의한 종조성표의 불연속성인 분류법과 연속성인 배열법을 적용하여 강화군 무인도서 해식애의 식물종조성 및 식생을 분석하였다. 해식애에서 출현빈도가 가장 높은 식물은 담쟁이덩굴(58.3%)이었으며 다음으로 소사나무, 분꽃나무, 음나무(각각 37.5%)이었다. 식물의 군락구조는 신갈나무군락, 찰피나무군락, 소사나무군락, 팥배나무군락, 곰솔군락으로 구분되었다. 도서별로는 신갈나무군락이 소송도와 분지도, 찰피나무군락은 대송도, 소송도, 소사나무군락은 우도, 수리봉, 비도, 팥배나무군락은 수시도, 대송도, 소송도, 곰솔군락은 석도, 우도에 나타났다. 도서별 유연관계는 소송도와 대송도의 유사도가 가장 높았다. 전형적인 해안단애초원군락이 결합하지 않은 이유는 해식애 대부분이 표토가 거의 없는 암석바위의 지형적 환경조건 때문으로 판단되어 이에 대한 세밀한 연구가 필요하였다.