• 한국자원식물학회:학술대회논문집
• /
• 한국자원식물학회 2002년도 춘계 학술발표대회
• /
• pp.38-38
• /
• 2002

• Journal of Plant Biotechnology
• /
• 제47권1호
• /
• pp.90-99
• /
• 2020

This study aimed to screen for plants with antimicrobial potential among the evergreen woody species of South Korea that are used for horticulture and landscaping and to provide basic information about plants with proven antimicrobial activity to underpin future research. The plant materials were extracted under various conditions, and the antimicrobial activities of the extracts were evaluated by agar diffusion assay. The screening tests demonstrated that the crude extracts of 43 species had inhibitory effects against S. aureus. The inhibitory activities of four species (Elaeocarpus sylvestris, Camellia japonica, Cleyera japonica, and Quercus salicina) were relatively higher than that of the synthetic antimicrobial agents methylparaben and phenoxyethanol. The highest inhibitory activity was observed with the leaf extracts (extracted with methanol for 30 minutes) of E. sylvestris, based on induction of the largest inhibition zone of 23.3 mm in size. In addition, solvent fractions of E. sylvestris were evaluated. The largest inhibitory zone of 23.1 mm was observed for the n-butanol fraction, which is likely to contain effective compounds that exhibit inhibitory activity against S. aureus. In contrast, n-hexane and residual aqueous fractions showed no antimicrobial activity. Overall, our findings confirm that evergreen woody plants native to South Korea have potential antimicrobial activity.

• Journal of Forest and Environmental Science
• /
• 제36권2호
• /
• pp.91-112
• /
• 2020

In Ethiopia, dry land vegetation including the fairly intact lowland and western escarpment woodlands occupy the largest vegetation resource of the country. These forests play a central role in environmental regulation and socio-economic assets, yet they received less scientific attention than the moist forests. This study evaluated the woody plant species composition, population structure and carbon sequestration potential of the A. senegal woodland across three distance gradients from the settlements. A total of 45 sample quadrants were laid along a systematically established nine parallel transect lines to collect vegetation and soil data across distance gradients from settlement. Mature tree dry biomass with DBH>2.5 cm was estimated using allometric equations. A total of 41 woody plant species that belong to 20 families were recorded and A. senegal was the dominant species with 56.4 IVI value. Woody plant species diversity, density and richness were significantly higher in the distant plots compared to the nearest plots to settlement (p<0.05). The cumulative DBH class distribution of all individuals had showed an interrupted inverted J-shape population pattern. There were 19 species without seedlings, 15 species without saplings and 14 species without both seedlings and saplings. A significant above ground carbon (5.3 to 12.7 ton ha^-1), root carbon (1.6 to 3.6 ton ha^-1), soil organic carbon (35.6 to 44.5 ton ha^-1), total carbon stock (42.5 to 60.7 ton ha^-1) and total carbon dioxide equivalent (157.7 to 222.8 ton ha^-1) was observed consistently with an increasing of distance from settlement (p<0.05). Distance from settlement had significant and positive correlation with species diversity and carbon stock at 0.64^⁎⁎ and 0.78^⁎⁎. Disturbance intensity may directly influence the variation of species composition, richness and density along the A. senegal woodland. The sustainability of the A. senegal woodland needs urgent protection, conservation and restoration.

• Journal of Forest and Environmental Science
• /
• 제18권1호
• /
• pp.15-30
• /
• 2001

21 세기에 들어 재래목본식물(在來木本植物)을 이용한 비탈면 녹화(綠化)가 이용되기 시작되고 있으므로 그 발전방향을 예측하기 위해 녹화(綠化)의 기본적인 개념과 녹화(綠化)에 대한 주역주민의 인식을 정리하여 보았다. 조사결과, 지역주민은 녹화(綠化)의 필요성과 재래목본식물(在來木本植物)을 이용한 공법(工法)을 충분히 인식하고 있었으나, 외래종(外來種)의 도입에 대해서는 대부분의 주민이 부정적이었다. 따라서 앞으로는 비탈면 녹화(綠化)의 다면성(多面性)을 추구해야 하며, 재래목본식물(在來木本植物)의 도입이 곤란한 장소에는 재래잡초류(在來雜草類)의 이용을 추진해야 할 것이다. 또한 비탈면에 시공하고 있는 금망(金網)은 인위적(人爲的) 재해(災害)를 유인할 가능성이 있으므로 시정할 필요가 있다. 결론적으로 비탈면 녹화(綠化)는 단기적으로는 비탈면의 물리적(物理的) 안정(安定)과 생태적(生態的) 안정(安定)에, 중 장기적으로는 지구환경(地球環境)의 개선(改善)과 향상(向上)에 기여해야 할 것이다.

• 한국환경복원기술학회지
• /
• 제18권3호
• /
• pp.97-107
• /
• 2015

Research was initiated to investigate a vegetation characteristics of the species of ground cover plants mixed with herbeceous and woody plants on a cut slope. 4 different ground cover plants (Miscanthus sinensis var. purpurascens, Pennisetum alopecuroides, Festuca arundinacea and Zoysia japonica) were seeded at the same rate of $10.0g/m^2$ with herbaceous plants (Lotus corniculatus var. japonicus, Dianthus sinensis, Aster yomena, Chrysanthemum zawadskii and Coreopsis drummondii L) at the total seeding rate of $7.5g/m^2$ and native woody plants (Lespedeza bicolor Turcz, Indigofera pseudo-tinctoria and Albizzia julibrissin) at the total seeding rate of $7.5g/m^2$, respectively. This experiment was treated with 3 replications on a randomized block design. Data such as surface coverage rate(%), the germinating number, plant height and visual quality were analyzed. There were no statistic differences observed in the soil hardness and the soil moisture content while a significant difference was observed in the surface coverage rate and the germinating number. The surface coverage rate and the germinating number were significantly high in the Pennisetum alopecuroides plot when compared with the Miscanthus sinensis var. purpurascens plot, the Festuca arundinacea plot and the Zoysia japonica plot, respectively from the viewpoint of ground covers. Especially, the surface coverage rate was considerably low in the Festuca arundinacea plot. However, the surface coverage rate and the germinating number were no statistic differences observed in this treatment from the viewpoint of herbaceous and woody plants. Also, both of the plant height and visual quality were high in the Pennisetum alopecuroides plot when compared with the Miscanthus sinensis var. purpurascens plot, the Festuca arundinacea plot and the Zoysia japonica plot, respectively. We concluded that Pennisetum alopecuroides was the optimum plant from the treated ground covers mixed with native woody and herbaceous plants for the balanced emergence from the viewpoint of the ecological slope vegetation.

• 한국산림과학회지
• /
• 제85권3호
• /
• pp.347-359
• /
• 1996

이 연구(硏究)는 고속도로(高速道路) 절토(切土)비탈면에 1차적으로 도입된 식생의 생육상황(生育狀況)과 자연상태로 방치된 절토(切土)비탈면의 2차식생천이상황(次植生遷移狀況)을 파악하기 위하여 1989년과 1995년에 중부고속도로(中部高速道路)를 대상으로 실시되었다. 절토(切土)비탈면에 자연 침입하여 생육이 왕성한 초본류(草本類)는 참억새, 쑥, 솔새 등이었으며, 목본류(木本類)로는 산딸기, 아까시나무, 칡, 소나무 등이었다. 또한 녹화공법 적용 단계에서 파종된 식생중 외래목초류로는 Weeping lovegrass의 생육이 우세하였다. 절토(切土)비탈면에 평떼붙이기공법에 의해 적용된 잔디(Zoysia japonica)의 생육비율은 비탈면 조성후 유지관리(維持管理)가 수반되지 않은 상태에서는 현저하게 감소하거나, 침입식생에 의해 피압 소멸되었으며, 주변식생의 영향으로 천이가 진행되어 초본류(다년생초본(多年生草本), 1년생초본(年生草本))의 비율은 감소하였으며, 목본류(관목류(灌木類), 교목류(喬木類))의 출현비율이 증가하였다. 따라서 비탈면에 적용된 식생은 계속적인 유지관리(維持管理)가 수반되어야 하며, 녹화공법(綠化工法) 적용시 생활력(生活力)이 강한 초본류(草本類)(야생초화류(野生草花類) 포함) 및 목본류(木本類)의 도입이 요망된다.

• 한국농림기상학회지
• /
• 제20권3호
• /
• pp.233-242
• /
• 2018

본 연구는 백화산 지역 고도 구배에 따른 식물 종풍부도 패턴을 구명 하고, 관찰된 고도별 식물 종풍부도 패턴에 대한 기후 및 서식지 인자들의 효과를 구명하고자 수행되었다. 백화산 지역 두 개의 조사 구간인 반야사에서 한성봉 구간과 보현사에서 한성봉 구간을 따라 총 70개 조사구에서 목본식물 78종, 초본식물 109종 등 총 187종의 식물종이 관찰되었다. 구간별로 살펴보면, 반야사 구간에서 목본식물 66종, 초본식물 88종을 포함한 154종이 관찰되었으며, 보현사 구간에서는 목본식물 58종, 초본식물 73종 등 131종이 관찰되었다. 고도별 종풍부도 패턴에 대한 기후 및 서식지 인자의 상대적 중요성을 분석하기 위해 단순최소제곱 회귀모형, 다수준모형 및 변이분할을 수행하였다. 분석결과, 반야사 구간의 고도별 종풍부도 패턴은 감소형 패턴을 나타내었으며, 보현사 구간의 종풍부도 패턴은 역단봉형 패턴을 나타내었다. 비록, 고도별 식물종풍부도 패턴은 조사구간 별로 서로 다른 양상을 나타내었으나, 백화산 지역 본 연구 조사 구간에 있어서 고도별 식물 종다양성 패턴에 영향을 미치는 인자들의 상대적 중요성은 서식지 인자가 기후 인자보다 큰 것으로 나타났다. 이러한 결과는 동일한 산악 생태계 내에 위치하는 인근 조사구간에서 조차 고도별 식물 종 풍부도 패턴은 다를 수 있다는 것을 나타낸다. 하지만, 동시에 동일 산악 생태계 내에서의 상이한 패턴에도 불구하고 그 패턴을 제어하는 인자는 동일할 수 있음을 나타낸다.

• Journal of Ecology and Environment
• /
• 제31권4호
• /
• pp.327-331
• /
• 2008

Serpentine soils are distributed in a small area in Korea, and generally exhibit high contents of Ni, Cr, Fe, Mn, Co and Mg. We investigated the growth of woody plants and herbs in the Andong serpentine area, Korea. Pinus densiflora and P. rigida growing on serpentine soils have high contents of Fe, Mg, Ni and Co, with contents approximately twice as high as those of non-serpentine plants. Tree species on serpentine soil also had lower ratios of tree height/DBH than trees in a control area. In greenhouse culture experiments on two bodenvag herb species, Setaria viridis and Cymbopogon tortilis, the biomass of the plants was significantly affected by soil type but not by seed origins. After 66 days, the growth of S. viridis and C. tortilis seedlings was significantly inhibited in serpentine soil, and the dry weight of each species showed significant negative correlations with soil heavy metal contents (Ni, Co and Cr). These results suggest that the growth of plants was inhibited by properties of the serpentine soil, and in particular, their high heavy metal concentration, which induced dwarfing in woody plants and reduction of total plant biomass in herbs.

• 인간식물환경학회지
• /
• 제23권6호
• /
• pp.647-654
• /
• 2020

Background and objective: Particulate matter (PM) is one of the serious environmental problems and threatens human health. Plants can clean the air by removing PM from the atmosphere. This study was carried out to investigate the PM removal efficiency of 12 species of woody plants. Methods: Actinidia arguta, Dendropanax morbiferus, Fraxinus rhynchophylla, Parthenocissus tricuspidata, Pittosporum tobira, Rhaphiolepis indica, Rhapis, Salix integra, Salix koreensis, Schisandra chinensis, Viburnum odoratissimum var. awabuki, and Vitis coignetiae were used as plant material. Six 15 cm (D) pots were placed in an acrylic chamber of 800 (D) × 800 (W) × 1000 (H) mm. The LED panel was used as a light source. The reduction of PM10, PM2.5, and PM1 for 300 minutes after the injection of PM was automatically measured. Results: The leaf area and the amount of PM in the chamber showed a negative correlation. 12 species of plants were compared by dividing the plants into 3 groups according to their characteristics: vines, trees, and shrubs and small trees. In the vine plant group, the averages of PM10, PM2.5, and PM1 were 7.917%, 8.796%, and 30.275%, respectively. In the shrubs and small trees group, the average of PM10, PM2.5, and PM1 were 10.142%, 11.133%, and 36.448%, respectively. In the trees group, the average of PM10, PM2.5, and PM1 were 11.475%, 12.892%, and 40.421%, respectively. When the initial concentration was 100%, PM10, PM2.5, and PM1 of Viburnum odoratissimum var. awabuki with the largest leaf area were 5.6%, 6.3%, and 21.0% after 5 hours, respectively, the best results among 12 species of plants. Conclusion: The vine plant group was more effective in removing PM than the other two groups. In the tree groups, the fact that the leaf development was relatively inactive at a plant height of 30 cm was considered to have an effect on the removal of particulate matter.

• 한국자원식물학회지
• /
• 제26권5호
• /
• pp.628-635
• /
• 2013

국내에 자생하는 기름생산이 가능한 목본식물의 바이오디젤 원료로서의 이용가능성을 구명하기 위해 기름함량, 지방산 조성 및 전이에스테르화를 통해 생산된 바이오디젤의 특성분석을 실시하였다. 목본 기름식물의 종자 내 기름함량은 15.1 ~ 70.3%로 다양하였으며, 지방산조성은 주로 올레산, 리놀레산, 리놀렌산, 팔미트산 및 스테아르산 등 이였으며 올레산의 함량이 가장 높았고 모든 식물에서 불포화지방산이 포화지방산보다 많았다. 지방산메틸에스테르의 산화안정성은 2.25 ~ 8.62 hours/$110^{\circ}C$로 나타났고, 요오드가는 때죽나무 기름이 가장 높았으며 이는 불포화지방산의 함량이 다른 식물 종보다 높기 때문이다. 저온 필터막힘점은 $0^{\circ}C$ to $-13^{\circ}C$로 다양하게 나타났으며 이팝나무 지방산메틸에스테르가 저온유동성이 가장 우수하였다. 기름함량, 지방산조성, 바이오디젤 특성 등을 종합하였을 때 동백나무, 이팝나무 및 때죽나무의 종자에서 추출한 기름이 바이오디젤로의 이용 가능성이 비교적 높은 것으로 생각된다.