• 한국조경학회지
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• 제28권1호
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• pp.54-61
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• 2000

Covering rate, visual rating and sod development were evaluated under three natural fiber materials with Phragmites spp. when over a plastic sheet. The results were as follows. (1) The last covering rate was high on jute net, coir mat and on Miscanthus sacchariflorus, respectively while the early covering rate was high on coir mat and on Miscanthus sinensis+perennial ryegrass. (2) The early growth was good on perennial ryegrass but the covering rate gradually turned poor because of summer drought. (3) Sod was highly developed on Phragmites japonica, Miscanthus sacchariflorus and Miscanthus sinensis compared with other species and mixtures. (4) The covering rate and visual rating were high on natural fiber materials such as coir mat and jute net when compared with on natural fiber materials such as none treatment plots. (5) The natural fibers materials on Phragmites spp. and Miscanthus spp. were effect on sod establishment. Sod coir mat was highly established. (6) The carpet-type sod was best developed on the coir mat.

• 한국조경학회지
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• 제21권1호
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• pp.51-61
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• 1993

Seeding treatment was used for 2 years at an artificial bare ground for selecting tree species suitable for forest-floor revegetation. 2 ${\times}$2${\times}$2 factorial experiment was used with a randomized complete block design for 19 native tree species and results were summarized as follows; 1. Native species suitable for restoration of bareland under 75% shading in central part of Korea were Styrax japonica, Styrax obassia, Smilax china, Callicarpa japonica, Stephanandra incisa, Viburnum dilatatum for. pilosulm, Magnolia sieboldii, Cornus kousa, Celastrus orbiculata, etc.. Especially, Magnolia sieboldii, Stephanandra incisa and Stryrax obassia were tolerant for forest-floor with hardened woil surface and Callicarpa japonica, Viburnum dilatatum for. pilosulum, Euonymus sieboldianus and Philadelphus schrenkii were suitable for softened soil surface with straw-mat mulching. 2. It is necessary to break seed dormancy to accelerate germination in case of Styrax obassia, Styrax japonica, Viburnum dilatatum for. pilosulum, Smilax china and Stephanandra incisa.

• 한국환경복원기술학회지
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• 제2권4호
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• pp.74-84
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• 1999

The purpose of this study was to figure out the utilization of native plants for highway landscape. The field and nursery experiments were conducted from January of 1996 to December of 1998 on the Chonju Arboretum and Honam highway in Korea Highway Corporation. We have investigated thirty species of native plants and came to a conclusion that Chrysanthemum zawadskii var. latilobum, Aster koraiensis, Iris nertschinskia, Fennisetum alopecuroides, Viola kapsanensis are very suitable for highway landscaping. And, if the problems raised during this investigation are resolved, it is clear that Polygonatum odoratum var. plurijlorum, Belamcanda chinensis, Allium thunbergii, Ophiopogon japonicus, Dianthus superbus var. longicalycinus, Disporum sessile, Lilium tigrinum, Caryopteris incana, Aquilegia flabellata var. pumila, Pulsatilla koreana, Aster spathulifolius etc. can be useful plants at highway landscaping.

• 한국조경학회지
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• 제15권2호
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• pp.139-148
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• 1987

Exochorda serratifolia, broad-leaved shrub has beautiful flowers and is resistant to cold, shade and decease. New this native plant is considered to be worth being exploited as the outstanding plant for landscaping and horticulture. So this study was executed to utilize Exochorda serratifolia as the planting material for landscaping and horticulture through the survey of its habitat environment and the experimennt of its seed physiology and germination, vegetative propagation, culture and utilization, etc.. The results are as follows ; 1. The color of the flower is white, blooming in the early and middle of May and the seeds ripen late in Sep.. 2. The elevation, elevation, gradient and direction of the native habitat were 250m, 20-25$^{\circ}$and northern side respectively. 3. The soil pH of the natural habitat was 5.3 and soil fertility was poor. 4. Exochorda serratifolia appeared as indicator within P. densiflora community and its neighboring species were Q. mongolica, Q. dentata, R. mucronulatum, L. obtusiloba, E. oxyphillus, C. heterolphylla, var thunbergii, etc.. 5. The optimum temperature for seed germination was found at 20$^{\circ}C$ and the longer the stratification period at 5$^{\circ}C$ was, the lower the germination rate was. 6. The treat merits of GA and Kinetin increased the seed germination rate, especially under the dark condition but their high concentrations decreased the seed germination rate. 7. The rooted rate of the greenwood cutting was the highest at IBA 100ppm plot of vermiculite bed but its high concentration decreased the rooted rate conspicuously. 8. In the tissue culture, the each 1.0 ppd plot of NAA, Kinetin and NAA 1.0ppm + Kinetin showed the best growth. And the mixture of NAA 1.0ppm and Kinetin showed better growth than the single treatment of NAA or Kinetin did. 9. Transplanted Exochorda serratifolia showed healthy growth with shaded environmental condition(42.1% light intensity), therefore they can be cultivated as a shade tolerant landscape plant. 10. It was considered that Exochorda serratifolia was applicable to group planting at shade places or under trees in parks, homes, etc..

• 생물환경조절학회지
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• 제26권2호
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• pp.133-139
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• 2017

본 연구는 NaCl 및 jasmonic acid(JA) 처리 시 스피아민트(Mentha spicata)의 생육 및 생리적 반응 변화를 조사하고자 실시하였다. 대조구, JA($20{\mu}M$ JA 전처리), JA+NaCl($20{\mu}M$ JA 전처리+ 50mM NaCl), NaCl(50mM NaCl) 처리 등 4처리구로 구분하여 0.5배 Hoagland 용액에서 3주간 수경 재배한 후 생장반응과 엽록소, 비타민 C, 프롤린, 무기물, DPPH 라디칼 소거 항산화 활성 등을 측정하였다. 스피아민트의 초장, 엽장, 엽폭 및 생체중은 대조구에 비해 모든 처리구에서 감소하였고, 특히 NaCl 처리구에서 현저히 감소하였다. 반면에 건물중은 JA+NaCl 혼용처리구를 비롯하여 모든 처리구에서 증가하였다. 엽록소 a와 b 함량은 JA 처리구가 가장 높았으나 비타민 C와 항산화 활성 및 지상부의 프롤린 함량은 염 스트레스로 생육이 가장 낮았던 NaCl 처리구에서 가장 높게 나타났다. 이온 흡수의 균형 정도를 알 수 있는 K/Na 비율은 JA 단독 처리 시 증가하였고, NaCl처리 및 JA+NaCl 혼용 처리구에서는 $Na^+$ 흡수 증가로 인하여 K/Na 비율이 낮아졌다. 이러한 결과는 낮은 염 스트레스나 JA처리 같은 적절한 스트레스 처리가 항산화 활성과 정유를 포함하는 이차대사물질의 축적을 유도함으로써 스피아민트의 품질을 향상시킬 잠재적인 가능성을 보여준다.

• 한국환경복원기술학회지
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• 제25권1호
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• pp.1-10
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• 2022

This study was conducted to investigate the germination characteristics through the temperature change treatment compared to the general room temperature immersion treatment of the native species, the Larix kaempferi, and the Berula platyphyllavar. japonica seeds, and to obtain basic data for the production of healthy seedlings with high productivity and efficiency. As a result, the germination rate of the larch seeds showed a significant difference according to room temperature and temperature immersion treatment, and the average germination days of the birch seeds showed a significant difference according to room temperature immersion and temperature immersion treatment. On the other hand, there was no significant difference in germinal uniformity. The results of the study are as follows. First, the results of the analysis of the fallen leaves were the highest germination rate in the treatment of 1.5 days of hot water and 1.5 days of cold water, the fastest germination rate, the lowest average germination day, and the highest germination uniformity. This is the best result in most items, and the change temperature immersion treatment of hot and cold baths was superior to the conventional room temperature immersion treatment. Second, the results of birch tree showed that the germination rate was the highest in 1.5 days of hot water and 1.5 days of cold water. The average germination day is 1.5 days of cold water 1.5 days of hot water 1.5 days, but the difference between 1.5 days of hot water and 1.5 days of cold water is 0.01 days. The highest germinated uniformity was found in 1.5 days of cold water and 1.5 days of hot water. As a result, in the case of larch and birch, the seed temperature immersion (1.5 days of hot water, 1.5 days of cold water) treatment is superior to the existing three-day immersion treatment in various analysis methods, and it is expected that productivity and efficiency can be improved at a low cost in a short period of time at the seedling production site through seeds.

• 한국조경학회지
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• 제20권1호
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• pp.53-68
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• 1992

This study was carried out to estimate the recreation carrying capacity of lawn areas in parks. Recreation carrying capacity in this study is composed of two parts, ecological carrying capacity and psychological carrying capacity. As the first part, this paper deals with the treading times criteria based on the tolerence of the turf to treading pressure. The plant material used for this study was Zoysia japonica, and the treading experiment was done in the experimental fields in Kyungju and Suwon, Korea. The major results of the first part of the study are summarized as follow: 1. As shown in annual change of the growth of the turf, The growth of turt grass was represented by the number of leaf. 2. The tolerance to treading was not significantly different by the time of treading treatment. And the tolerance varies depending on growth rate of grasses, which showed significant relationship with precipitations. 3. From the result of different numbers of simulated treading treatment, the damage of the turf was increased by the increase of the frequency of treading. And the damage was very serious within short period(about 20 days) in high frequency(over 20 times/day) of treading treatment. But low frequency(1∼3times/day) of treading shows good effects on the growth of the turf. 4. The criteria of treading number per day for each carrying capacity level are estimated as 7 times/day for optimum carrying capacity, 13 times/day for standard carrying capacity, and 20 times/day for critical carrying capacity.

• 한국조경학회지
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• 제27권5호
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• pp.107-113
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• 2000

The purpose of this study is to investigate the effects of soil amendments for reducing soil compaction at heavy traffic area in golf course. Major results of this research are summarized at follows: 1. In the Lab. experiment, the porosity was improved significantly when the materials, such as peatmoss, charcoal, and tire chip mixtures were used respectively. Especially mixture of sand and 20% peatmoss showed higher effectiveness (10%) in porosity, comparing with ordinary sand. This soil mixture(sand 80%+peatmoss 20%) was observed the best in water retention, soil hardness and hydrauric conductivity. 2. In the greenhouse experiment, traffic pressure was given 7 times a day on several combination of mixture treatments to see the top dry weight. The soil mixture of 20% peatmoss showed the highest in the top dry weight. When the more traffic pressure(15 time/day) were given on the different treatment, the top dry weight was significantly reduced. However, the mixture of 20% peatmoss also had the least influence on this type of heavy traffic. 3. In the field experiment, the soil amendments were treated in traffic area f golf course, and observed at 30days, 60days, 90days, 120days after treatment. Visual turf quality(color), root length and soil compaction were compared to those of control. As a result, overall treatments with soil amendments were effective, which showed better turf quality and less soil compaction. 4. In the field test, physical characters of soil (such as soil hardness and hydrauric conductivity) in sand+tire chip+peatmoss(60:20:20, %, v/v) treatment was significantly improved. Also in the slow increasing of traffic, the soil compaction was the most effective in reducing soil hardness.

• 한국조경학회지
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• 제47권1호
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• pp.1-9
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• 2019

본 연구에서는 실제 대상지를 선정하여 비교실험을 통해 신체적 변화를 고려한 노인친화형 공원의 유치거리를 도출하고자 한다. 우선 연령별 500m(도시공원의 설치 및 규모의 기준에서의 근린생활권 근린공원의 유치거리)의 보행시간을 도출해 본 결과, 65세 이하의 청 장년층인 대조군의 평균 보행시간은 536초, 65세 이상의 실험군인 노인층은 889초로 청 장년층에 비해 노인층의 보행시간은 약 1.7배 더 소요되는 것으로 나타났다. 또한, 성별에 따른 보행시간을 분석해 본 결과, 65세 이후로부터 여성에 비해 남성의 보행시간이 더 많이 소요되는 것으로 나타났다. 다음으로 대조군과 실험군의 평균보행시간을 활용하여 속력을 도출하였다. 비례공식을 적용한 가중치의 값은 0.6으로 나타났으며, 이를 근린생활권근린공원의 유치거리인 500m에 접목시켜 본 결과, 노인친화형 공원의 유치거리는 300m로 도출되었다. 마지막으로 대구광역시 중 노인인구 비율이 가장 높은 중구를 대상으로 노인친화형 공원 유치거리인 300m를 적용시켜 녹지서비스 소외지역을 정량적으로 검증해 보았다. 도시공원 서비스 지역은 $2,425,747m^2$, 도시공원 서비스 소외지역은 $4,627,700m^2$로 나타났으며, 분배적 형평성에 따르면 행정동 별로 도시녹지의 불균형이 심각한 것으로 나타났다.

• 한국환경복원기술학회지
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• 제14권1호
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• pp.77-88
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• 2011

This study was carried out to investigate the effects of soil depth and planting density on the growth of lettuce, crown daisy, and strawberry on a rooftop condition using artificial soil as a growth media. The vegetable crops showed better growth for plant height (cm), plant width (cm), plant fresh weight (g), and Fo, Fm and Fv/m on 20cm depth soil than 10cm depth soil except strawberry. Planting density of $16/m^2$ and $64/m^2$ did not show significant differences on the growth of the crops. Soil moisture content and EC were low for 10cm depth soil in lettuce plots, whereas there was no significant differences on soil moisture and EC between two soil depth in strawberry plots. Hunter's L, a, and b values showed the leaf color of lettuce dark green on 20cm depth soil and reddish on 10cm depth soil. Results showed that soil depth suitable for crop growth on rooftop conditions was 20cm rather than 10cm. Growth response of the crops showed no significant difference between $16/m^2$ and $64/m^2$, indicating that planting density of 64 $plants/m^2$ could be practiced on rooftop conditions. Lettuce growth rapidly changed in control treatment in which leaves were not pinched out, while slowly changed in plants which leaves were periodically pinched out. In the case of control plot, it was impossible to harvest because withering of lower leaves after blossom on June 22. The plant of crown daisy in which pinching was not conducted, blossomed on June 7, and the plants were removed since its aesthetical value was lost. Strawberry seemed to be a suitable vegetable crop for rooftop conditions based on its high covering rate and extended growth period until late October. The soil depth 20cm and planting density 64 $plants/m^2$ were suitable for vegetable crops on green roof system using artificial soil.