• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.7
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• pp.548-553
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• 2017

The aim of this study was to develop a low impact development design technique that can be applied in the land use planning stage and verify quantitatively the effects of non-point pollution reduction. For this purpose, the low impact development design elements that can be applied in the land use planning stage were derived and applied to an actual site, and the non-point pollution reduction effect was analyzed using the LIDMOD2 program. The analysis showed that the permeability rate of the land use plan using low impact development decreased by 19.8% compared to the existing land use plan. In addition, annual surface runoff decreased by 19.0% and annual infiltration increased by 164.1%. In the case of non-point pollution, the annual loading, T-N, T-P, and BOD decreased by 18.7 ~ 22.8%. Therefore, compared to the existing land use plan, the land use plan using low impact development has a considerably large effect of reducing the non-point pollution without changing the floor area according to each application. Therefore, to maximize the reduction effect of non-point pollution, it will be necessary to establish a related plan by applying the low impact development technique from the land use planning stage to the existing LID facility-oriented plan.

• Journal of Environmental Policy
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• v.10 no.1
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• pp.27-47
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• 2011

Used as foundation resources for environment improvement and preservation of single-housing residential area by practicing classification of biotope with the concept of ecological area rate applied and performing urban thermal environment prediction simulation. Biotope is classified as seven types according to classification of biotope which is carried out with the concept of ecological area rate applied. The classification is listed below in descending order: building biotope(48.16%), impervious pavement biotope(39.75%), greenspace biotope(6.23%), crack permeable pavement biotope(3.26%), whole surface permeable pavement biotope(2.51%), parts permeable pavement biotope(0.04%). As a result of analysing prediction of variation and characteristics of thermal environment of single-housing residential area, land surface temperature per types of biotope are evaluated as listed below in descending temperature order: impervious pavement biotope > building biotope > greenspace biotope > permeable pavement biotope. In case 2 where vegetated roof hypothetically covers 100% of the roof area, temperature is predicted to be $33.58^{\circ}C$ Max, $23.85^{\circ}C$ Min, and $27.74^{\circ}C$ Avg. which is Approximately $5.19^{\circ}C$ lower than a non-vegetated roof. Average outdoor temperature for case 2 is studied to be $0.18^{\circ}C$ lower than case 1.

• Journal of Environmental Impact Assessment
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• v.27 no.6
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• pp.618-634
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• 2018

This study examined ecological network change affected by the 2020 invalidation of decisions on urban parks with a focus on Busan. The analyses were conducted to five scenarios using FRAGSTATS. The green space in scenario 1 assuming all development for unexecuted urban park would decrease by 7,339.75 ha compared to scenario 5, which assumes the entire conservation of unexecuted urban parks, and the fragmentation of the ecological space in scenario 1 increased. In scenario 1, 8.06% of the total area of core habitats and 28.23% of connectivity would decrease. However, scenario 3, which assumes the conservation of environmentally sensitive areas of unexecuted urban parks, can achieve 94% of green space and 95.6% of the connectivity of the scenario 5. Scenario 3 has effects similar to scenario 5 in terms of defragmentation. Thus, conservation of environmentally sensitive areas in parks is critical and effective in maintaining ecological networks.

• Journal of the Korean Institute of Landscape Architecture
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• v.26 no.1
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• pp.36-43
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• 1998

We compared the electroencephalogram, blood pressure, and sensory evaluation inspectioni several color of Petunia hybrida to analyze the physiopsychological effects of a plant. Considering occipital is related to visuosensory field, green color is thought as mild visual stimulator unlike to pink color. The results are coincident with the well-known facts that green color is less stimulating color. It is also accorded with the sensory evaluation results that green color showed te feeling of blue and stable. In case of green color is showed the feeling of blue and stable. In case of green color the generatioin of alpha waves increased according to the increase color area. Therefore it is thought that green color helps decrease of visual stimulation and increase in visual stability. However it is thought that pink has less physiopsychological effects on human beings depending on area sizes than green has.

• Korean Journal of Environment and Ecology
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• v.13 no.3
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• pp.261-270
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• 1999

낙산복원사업 대상지의 생태계 회복을 위한 계획수립의 기초자료로 사용하기 위하여 부지 내 식생조사를 통해 자연환경을 평가하였다 현존식생도 녹지자연도 및 Hemeroby 등급을 통해 자연성을 평가한 결과 많은 면적이 산림으로서의 기능을 상실한 인공화된 지역이었다. 식생이 존재하는 지역 중 산림의 형태를 유지한 지역은 아까시나무군락을 유지하고 있었고 기타 지역은 휴경지, 논.밭 잡초군락이며 동시에 ruderal 식물군락으로 판명되었다. 성과주변에 식재한 수목은 총 67종 1,243개체였으며 그중 자생종이 27종(40.3%) 544개체(43.8%)였고 도입종과 귀화종 재배종이 각각 17%, 8.8%, 15.4%로 나타났다. 생활형 분석에서는 1,2년생 초본식물이 47%를 차지하였고 귀화율은 24.1%로 나타나 매우 불안정하고 교란된 환경인 것으로 판단되었다.

• Journal of the Korean Institute of Landscape Architecture
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• v.40 no.2
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• pp.15-23
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• 2012

This study was accomplished by analyzing the change of land cover pattern in high-rise buildings in Korea. For this study, we selected 15 locations of high-rise buildings. The ratio of average building coverage and paved area was 79.7%, and both green and water area were low, relatively. The biotope area factor of the site showed low percentage by 15.90% due to the underground space development. As a result of correlation analysis between the time of construction and land-cover type, building coverage has been decreased according to the stream of time. However, biotope area factor has been increased And, the paved area has m correlation. It was identified that reducing paved area is effective to enhance the ecological functions of a high-rise building outdoor.

• Journal of Korean Society of Forest Science
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• v.77 no.3
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• pp.303-314
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• 1988

Tong-ri beach has not enough vegetation to be enjoyed by the sea bathers and to be satisfied with preventing the disaster-damages, but mixed forest near the beach can work its funtions and the old forest of Pirus thunbergii $P_{ARL}$. near the beach do a Little. Therefore it is very urgent to plant more trees near the beach for bathers and disaster-damage prevention. This study was carried out for planning an afforestation, with reporting upon the crown amounts and soil properties of disaster-damage prevention forests of P. thunbergii $P_{ARL}$. planted on the coast sand dunes in 1970 and 1976, and with reporting upon the valuation on soil properties of the lands near the beach in order to set the afforestation site. The results are as follows : 1. In disaster-damage prevention forests, crown surface area and crown volume became increasingly greater in proportion to the height. To D.B.H., crown volume also became increasingly greater in proportion, but crown surface area was directly proportional. 2. In comparison to sail characteristics of sand dune, those of the forests were in large quantity in OM, T-N and avail. $SiO_2$, and almost in the same in avail. $P_2O_5$, but in small quantity in exchangeable canons : K, Ca, Mg and Na. 3. EC, Cl and pH were in small value in the forest soils, but CEC was in large value in those soils. 4. Above facts showed that the forests fulfill their functions for preventing disaster-damages and improve their soil properties. 5. The forests have naturally been thinned up to 34% in 17 years and 39% in 11 years, and one can easily pass through the forest(planted in 1970), because of its sufficient clear-length(2.71m) and its space to pass. 6. A plan for afforestation was oracle nut after judging several sites by the evaluation on the soil properties and considering the best relaxation and the prevention of the various disaster-damages upon which were reported in the last issue. 7. Afforestation should be kept for maintaining its appropriate density for best relaxation and disaster-damage prevention.

• Korean Journal of Environment and Ecology
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• v.19 no.4
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• pp.333-341
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• 2005

The Wonhyo tunnel section of the Gyeongbu line for KTX, which will be driven through the Cheonseongsan, has the opposing opinions between conservation and development. To investigate the vegetation structure of the Cheonseongsan area, sixty five plots(unit: $100m^2$) were set up and surveyed. The analysis results of the actual vegetation map was showing that the conifer-deciduous and deciduous community is $53\%$, And DGN 8 was $86.88\%$ in the analysis of Degree of Green Naturality. Five representative communities which are conifer-deciduous, de-ciduous, Pinus densiflora -Quercus dentata, P. densiflora-Q. acutissima and Q. dentata community, were investigated on a species composition.

• Korean Journal of Environment and Ecology
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• v.22 no.1
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• pp.1-10
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• 2008

The Bulyeongsa Valley in Uljin-gun(Gyeungbuk) has a unique beautiful landscape and plentiful ecosystem, and Pinus densiflora for. erecta is distributed widely. Recently as the widening of national road in Bulyeongsa Valley, comprehensive survey is needed. So to investigate the forest distribution and structure, ninety-nine plots were installed and surveyed. Each plot size is $100m^2$. Important percentage analysis of the summarize results, vegatation of Bulyeung valley is found out that dominant species is Pinus densiflora mainly and Quercus variabilis and Quercus serrata are compatitive relation with Pinus densiflora partially. The analysis results of the actual vegetation and degree of green naturality(DGN) showed that Pinus densiflora community is 47.75%, and DGN 8 is 69.14% in total. From the above results, vegatation of Bulyeungsa valley is found out that dominant species is Pinus densiflora mainly, and Quercus variabilis and Quercus serrata are competitive relation with Pinus densiflora partially.

• Proceedings of the Korea Water Resources Association Conference
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• 2023.05a
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• pp.302-302
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• 2023

최근 도시의 왜곡된 물순환 문제를 해결하기 위해서 저영향개발(Low Impact Development, LID) 기법을 적극적으로 도입하고 있다. 저영향개발은 자연의 침투, 증발산, 여과 등의 자연기작을 모방하여 강우유출수를 침투 및 저류시키는 기법으로 물순환 체계를 회복시킬 수 있다. 저영향개발 기법의 하나인 벽면녹화는 건축물이나 기반 시설물의 벽면과 같은 인공지반에 기반을 조성하고 식물을 식재하는 시설로 짧은 시간에 녹지 면적을 만들 수 있다. 또한, 건축물로 인해 생겨난 수직적인 면을 녹지로 활용할 수 있어 도시에 매우 특화된 시설이다. 본 연구는 벽면녹화의 저영향개발 시설로서의 성능을 확인하기 위해 실내 실험을 진행하여 강우유출수 저감효과 및 지체시간 지연효과를 확인하였다. 강우유출수 저감효과는 유입량 대비 저류량을 기준으로 유출저감률을 산정하여 분석하였으며, 총 유출시간을 측정하여 지연효과를 판단하였다. 벽면녹화 현장실험 대상지는 경상남도 양산시 물금읍 부산대학교 양산캠퍼스에 위치한 한국 녹색인프라저영향개발센터이며, 실내에 플랜터형 벽면녹화 시스템을 적용하였다. 부산시 금정구 2012년~2021년의 강수량을 사용해 백분위수 강우사상을 기준으로 30, 50, 70mm/hr의 강우 시나리오를 선정하였다. 물순환 효과를 판단하기 위해 불투수면을 대조군으로 설정하여 불투수면의 유출이 종료되는 시점까지 지표면 유출을 모니터링 하였다. 그 결과, 30, 50, 70mm/hr 시나리오별 유출률은 91.76%, 92.18%, 94.54%로 불투수면과 대비하여 유출이 적게 발생하였으며 총 유출시간은 불투수면대비 47분, 88분, 58분 증가하여 지연효과가 있음을 확인하였다. 본 연구는 실험을 통해 벽면녹화의 수문학적 성능을 분석하고자 유출량 저감효과와 지연효과를 확인하였다. 추후 다양한 강우 시나리오와 제원에 따라 실험이 수행된다면 더 정확히 벽면녹화의 물순환 효과를 확인할 수 있을 것이다.