• 한국조경학회지
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• 제40권4호
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• pp.1-17
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• 2012

본 연구는 서울시 아파트단지의 시기별 녹지배치구조와 식재구조의 변화과정을 분석하여 보다 친환경적인 아파트단지 내 녹지조성 개선방안을 제시하고자 하였다. 연구대상지는 서울시에 조성된 아파트단지 중 조성시기, 용적률, 지하주차장에 의한 지반현황, 녹지율의 차이가 뚜렷한 아파트단지 12개소를 선정하였다. 연구대상지 유형화는 시기별로 녹지율과 지반현황을 기준으로 녹지율이 높은(40% 이상) 자연지반 아파트, 녹지율이 낮은(40% 미만) 자연지반 아파트, 녹지율이 낮은(40% 미만) 인공지반 아파트, 녹지율이 높은(40% 이상) 인공지반 아파트 네 가지로 구분하였다. 아파트단지 녹지배치 구조의 가장 근원적 변화요인은 녹지율과 인공지반 여부로 용적률이 상승하면서 주차장 면적비율도 높아져 상대적으로 녹지율은 낮아졌다. 녹지배치구조가 가장 많이 변한 녹지유형은 전면녹지와 완충녹지로 전면녹지는 녹지율이 높은 자연지반 아파트의 평균 녹지 폭 10.0m에서 3.5m, 2.7m, 4.5m로 시기별로 축소 변화하였다. 완충녹지는 녹지율이 높은 자연지반 아파트에서 평균 녹지 폭 15.0m로 단지외곽 경계부를 연결하였으나, 녹지율이 낮은 인공지반 아파트에서 주차장 확대로 평균 녹지 폭이 7.7m, 2.7m로 점차 축소되고 일부 구간은 단절되었으나, 2001년 이후 녹지에 대한 인식변화로 다시 평균 녹지 폭이 3.8m로 넓어지면서 연결되었다. 녹량 변화를 살펴보면, 녹지율이 높은 자연지반 아파트 녹지용적계수가 $1.27m^3/m^2$이었고, 식재밀도가 높아지면서 녹지율이 낮은 자연지반 아파트의 녹지용적계수가 $3.47m^3/m^2$로 가장 높았다. 반면에 녹지율이 높은 인공지반 아파트의 녹지용적계수는 $0.72m^3/m^2$로 매우 낮은 상태이었다. 식재밀도는 교목 아교목층의 경우 5.0주/$100m^2$에서 14.5주/$100m^2$로 증가하였다. 아파트단지 녹지를 보다 친환경적이고 기능적으로 조성하기 위한 방안으로 녹지율 40% 이상의 아파트단지 내 전면녹지는 녹지 폭 4.5m 이상으로 확대하여 정원개념의 경관 식재지로 조성하고, 후면녹지는 녹지 폭 5.0m이상으로 확대하고 복층구조로 식재하여 녹지량을 증진하는 것을 제시하였다. 측면녹지는 수고가 높은 수종을 식재하여 벽면 차폐와 녹음기능을 증진하고, 완충녹지는 자생수종을 자연림에 가까운 다층구조로 조성하는 생태적 배식기법을 적용하면서 단지내부녹지와 연결해야 할 것으로 판단되었다.

• 한국환경생태학회지
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• 제27권2호
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• pp.253-265
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• 2013

본 연구는 서울시 가로노선 중 시 관리도로 93개 노선(629.2km)의 가로녹지 조성 및 관리 현황과 가로환경에 대한 조사를 실시하여 가로녹지 조성 및 관리와 가로환경간의 관계를 분석하였다. 조사된 총 629.2km 구간 중 띠녹지 조성 구간은 17.5%이었다. 조성된 띠녹지는 폭 1~2m가 11.6%로 가장 많았다. 관리 현황으로 가로수 보호시설은 보호틀과 보호덮개 모두 설치된 구간이 60.1%로 가장 많았고, 전정되지 않은 구간은 63.5%이었으며, 수형은 보통이 47.9%로 대부분이었다. 가로환경에서 차도폭은 8차선 이상이 51.3%, 보도폭은 폭 3~6m가 84.1%이었다. 토지이용은 상업 및 업무지가 70.3%이었고 전선 및 통신선은 수관 경합이 33.6%이었다. 보도는 16.3%가 점용되고 있었다. 가로녹지 조성 및 관리와 가로환경간의 ANOVA 분석결과 가로녹지 조성 측면에서 띠녹지는 보도폭 3m 이상에서 조성이 효과적인 것으로 분석되었다. 도심 외곽의 자연녹지와 공업지가 띠녹지 조성여건이 양호하였으며 보도점용에 대한 관리가 필요하였다. 보호시설은 보도폭이 좁은 구간에서 설치 강도가 낮았다. 전정은 좁은 차도폭 및 보도폭, 전선 및 통신선과의 경합지에서 강도가 높았고 수형도 유사한 경향을 보였다. 가로수 전정과 수형은 유의적인 상관관계를 보였다. 따라서 향후 가로녹지의 효과적인 조성과 관리를 위해 충분한 보도폭 확보와 토지이용을 고려한 조성 및 관리가 필요하였고, 전선 관리 및 가로수 수형과 경관을 고려한 수종 선정과 전정관리가 필요하였다.

• Current Photovoltaic Research
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• 제11권3호
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• pp.75-78
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• 2023

Recently, the installation of photovoltaic modules in urban areas has been increasing. In particular, the demand for solar modules installed in a limited space is increasing. However, since the crystalline silicon solar module's size is proportional to the solar cell's size, it is difficult to manufacture a module that can be installed in a limited area. In this study, we fabricated a solar module with a shingled design that can control horizontal and vertical width using a bi-directional laser scribing method. We fabricated a string cell with a width of 1/5 compared to the existing shingled design string cells using a bi-directional laser scribing method, and we fabricated a solar module by connecting three strings in parallel. Finally, we achieved a conversion power of 5.521 W at a 103 mm × 320 mm area.

• 한국환경복원기술학회지
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• 제23권6호
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• pp.167-185
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• 2020

The purpose of this study is to prepare a plan for improving the bird habitat environment of Linear Park. To this end, after grasping the status of bird habitats on the Gyeongchun Line Forest Road, a representative linear park in Seoul, the habitat environment was evaluated and the correlation with the bird habitat was analyzed to derive a plan to improve the habitat environment. The results for correlation between diversity of birds and habitat environment were as follows. For the habitat environment inside the park, the order of positive correlation was in the order of park area (0.92), number of insect species (0.87), green area ratio (0.77), average width of linear park (0.74), Biotope area ratio (0.73), Immigration planted species (0.57). Also, for habitat environment outside the park, the bird diversity was influenced in the order of area outside the park (0.88), green area ratio of the park (0.76). Thus, in order to enhance the diversity of birds found in the park, the bird habitat environment inside the park needs to expand the park area, secure insect diversity, enhance green area ratio and ecological area ratio, expand the width of linear park, and lower the impermeable layer. For the bird habitat environment outside the park, wider area, green area ratio, and forest area of the park influenced on better bird habitation while lower ratio of road space and building-to-land ratio influenced on higher bird diversity. It is necessary to create an environment inhabitable for various species of birds and to make a healthy and pleasant city urban system for co-existence of human and living creatures.

• 한국환경생태학회지
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• 제18권1호
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• pp.42-52
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• 2004

본 연구는 공동주택단지 용적률변화에 따른 녹지면적 및 녹지구조의 변화파악을 목적으로 수행하였다. 대상지는 용적률 100%이하, 용적률 250%이하, 용적률 250%이상의 세 유형으로 구분하여 각 유형별로 2개소씩 선정하였다. 1970～1980년에 조성한 용적률 99%인 화곡제2주공아파트와 용적률 73%인 개포주공아파트는 녹지면적 비율 40.23～44.23%, 녹지 폭 3～ 15m 녹지 량 1.06～1.71㎥／$m^2$, 교목층 식재밀도 0.04～0.06주／$m^2$ 관목층 식재밀도 0.06 ～0.20주／$m^2$이었다. 1990년대에 조성한 용적률 226%인 등촌주공아파트와 용적률 240%인 개화 아파트는 녹지면적비율 24 16～26.16%, 녹지폭3～7m, 녹지량 0.84～l.54㎥／$m^2$, 교목층 식재밀도 0.18～0.31주／$m^2$, 관목층 식재밀도0.15～0.35주／$m^2$이었다. 1990년대말에 조성한 용적률 269%인 한보구암아파트와 용적률 376%인 동아3차아파트는 녹지면적비율 23.47～25.53%, 녹지폭 2～6m, 녹지량1.06～2.12㎥／$m^2$, 교목층 식재밀도 0.25주／$m^2$, 관목층 식재밀도 0.22～0.37주／$m^2$이었다. 용적률변화에 따른 녹지구조 분석결과 녹지면적은 용적률이 높을수록 넓었으나, 녹지량과 식재밀도는 용적률의 변화와 상관없이 전체적으로 낮은 상태이었고 식재구조는 외래종위주의 단층구조이었다.

• 한국환경복원기술학회지
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• 제22권3호
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• pp.55-71
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• 2019

The purpose of this study is to propose an evaluation method to assess green environments of streetscapes to improve urban street green spaces in Jeonju City. Through a rapid assessment of urban street green spaces, we suggest an objective basis for expanding street green space as well as for adopting sustainable maintenance and improvement measures. We choose 12 sections of streetscapes (roads and sidewalks) to investigate existing street conditions which have more than four lanes and function as major road axes. Six large roads and six medium roads of Jeonju City center area are investigated as pilot assessment study sites. Site inventory checklists consist of environmental characteristics of streetscape, street tree status, and planting condition evaluation. Environmental characteristics of streetscapes are composed of physical and neighborhood factors. For instance, items for physical factors are types and width of road/sidewalks, paving materials, tree protection materials, and green strip. And surrounding landuse is a neighborhood factor. Assessment items for street tree status are street plant names (tree/shrubs/ground cover), size, and planting intervals. Planting condition evaluation items are tree shape, damage, canopy density, and planting types with existence of adjacent green space. Evaluation results are classified into three levels such as A(maintain or repair), B(greening enhancement), and C(structural improvement). In case of grade A, streetscapes have enough sidewalk width for maintaining green strip and a multi-layered planting(in large road only) with fairly good growing conditions of street trees. For grade B and C, streetscapes have a moderate level of sidewalk width with a single street tree planting. In addition, street tree growing conditions are appeared poor so that green enhancement or maintenance measures are needed. For median, only grade B and C are found as its planting growing foundations are very limited in space. As a result, acquiring enough sidewalk space is essential to enhance ecological quality of urban street green. Especially, it is necessary to have green strip with reasonable widths for plant growing conditions in sidewalks. In addition, we need to consider native species with multi-layer plant compositions while designing street green.

• 한국조경학회지
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• 제35권1호
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• pp.1-8
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• 2007

The purpose of this study is to suggest the minimum distance needed between landscape trees and apartment buildings. in order for the trees to grow soundly and maintain constant growth. Therefore, this study investigated and analyzed the present conditions of the green-spaces contiguous to apartment buildings and the trees inside the apartment complex. The following general problems were identified : (1) the tree growth conditions, (2) the planting intervals, and (3) the planting methods in the apartment complexes. The method of this study was to survey areas, measure the trees and analyze the results. Ten apartment complexes located in Seoul were randomly selected for this study. To analyze the greens contiguous to the building of each apartment complex, the greens were divided into three types, including the front greens, the side greens, and the rear greens. The study surveyed the width of all contiguous greens and the distance from trees to my given building. Four representative sites were specifically investigated to measure the crown widths, heights, and diameters of the trees. These investigations were carried out over 3 months from August to December 2006. According to the results of the study, it was found that the greens are narrower in width and the more closer to a building. The study identified a correlation between the tree and the passage of time after the completion of construction of an apartment complex, showing that the malformation of the trees worsened as time passed. As a result of measuring the right crown and left crown width with the tree trunk as the center, a broad difference was found between coniform trees and trees that tend to branch out more. For example, the ratio of the width of the Acer palmatum is 1:6. However, the ratio of the Metasequoia glyptostroboide is 1:1.7. Based on the overall analysis, it was concluded that the maintained minimum width must be greater than one meter over the green space according to the 'Landscape Standard 2000'. However, that is only applicable to cases such as apartment buildings that present no obstacles. In conclusion having greens placed within one meter of width to a building is not an appropriate environment for the healthy growth of trees. To create sound green spaces, sustainable, long-term growth rate and size should be considered. It is necessary to prepare new standards for the computation of planting trees and the measurement of square landscapes. Wall greenery and shrubberies could be an alternative in the case of a narrow-width green space.

• 한국환경복원기술학회지
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• 제25권1호
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• pp.25-38
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• 2022

Urban problems are constantly occurring around the world due to rapid industrialization and population decline. In particular, as the number of vacant houses is gradually increasing as the population decreases, it is necessary to prepare countermeasures. A plan to utilize vacant houses has emerged to restore the natural environment of the urban ecosystem where forest destruction, damage to habitats of wild animals and plants, and disconnection have occurred due to large-scale development. Through connectivity analysis, it is possible to understand the overall ecosystem flow based on the movement of species and predict the effect when vacant houses are converted into green spaces. Therefore, this study analyzed the green area network to confirm the possibility of greening of vacant houses neglected in Jeonju based on circuit theory. Using Circuitscape and Least-cost path, we tried to identify the connectivity of green areas and propose an ecological axis based on the analysis. In order to apply the resistance values required for analysis based on previous studies, the 2020 subdivision land cover data were integrated into the major classification evaluation items. When the eight forests in the target site were analyzed as the standard, the overall connectivity and connectivity between forests in the area were high, so it is judged that the existing green areas can perform various functions, such as species movement and provision of habitats. Based on the results of the connectivity analysis, the importance of vacant houses was calculated and the top 20 vacant houses were identified, and it was confirmed that the higher the ranking, the more positive the degree of landscape connectivity was when converted to green areas. In addition, it was confirmed that the results of analyzing the least-cost path based on the resistance values such as connectivity analysis and the existing conceptual map showed some differences when comparing the ecological axes in the form. As a result of checking the vacant houses corresponding to the relevant axis based on the width standards of the main and sub-green areas, a total of 30 vacant houses were included in the 200m width and 6 vacant houses in the 80m width. It is judged that the conversion of vacant houses to green space can contribute to biodiversity conservation as well as connectivity between habitats of species as it is coupled with improved green space connectivity. In addition, it is expected to help solve the problem of vacant houses in the future by showing the possibility of using vacant houses.

• 한국연초학회지
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• 제10권1호
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• pp.11-19
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• 1988

This study was conducted to relate among growth characteristics, quality, and chemical components for flue-cored tobacco. The results are summarized as follows : 1. Starch content in harvested green leaf was correlated negatively with leaf length, leaf width, leaf area, and leaf weight of harvested green leaf, respectively, while positively with total sugar content in cured leaf, and the ratio of leaf length to leaf width of harvested green leaf. 2. Organic matter and total nitrogen contents in the soil were correlated positively with nicotine content in cured leaf, respectively, and total nitrogen in the soil negatively with total sugar content in cured leaf. 3, Amount of fertilizer, application date of MH, priod of harvesting, and yield were correlated positively with nicotine content in cured leaf, respectively , while negatively with total sugar content. Application amount of MH was correlated positively with total sugar content, but negatively with nicotine content in cured leaf. Also amount of compost was correlated negatively with nicotine content in cured leaf. 4. The ratio of total sugar to nicotine (TS/N) per plant was correlated positively with price (Won/kg) and specific leaf area, but negatively with leaf length. leaf width, leaf area, harvested leaves, and leaf weight in cured leaves, respectively. Yield was correlated negatively with TS/N per plant. 5. TS/N of the best quality tobacco per plant was 12.0. Those of the best quality tobacco in each stalk position were 42.1 for first~third leaf, 28.4 for 4th~6th leaf , 23.7 for 7th~9th leaf, 7.7 for l0th~12th leaf , and 7.8 for over 13th leaf from bottom, respectively. 6, When TS/N was 12.0, optimum values of growth characteristics per plant were 100.5 $\pm$ 10.3g for leaf dry weight, 755.1$\pm$53.2cm for leaf length, 294.4$\pm$25.1cm for leaf width, 8, 892$\pm$111cm2 for leaf area, 16.0$\pm$0.6 leaves for harvested leaves, and 7.32$\pm$0.44mg/cm2 for specific leaf area, respectively. 7. When TS/N was 12.0, optimum values of chemical components per plant were 1.92$\pm$0.28% for nicotine content, and 20.4$\pm$ 1.4 % for total sugar content, and that of yield was 238.3$\pm$ 9.8kg/10a.

• 아시안잔디학회지
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• 제13권4호
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• pp.181-190
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• 1999

This study was carried out to survey green system, area, green slope, green turfgrass variety, green section, and particle size of green construction materials, and to investigate and evaluate the characteristics of Design and Construction in Korean golf course green for improving the quality of Korean golf course into that of the international golf course held international tournament. The results were as follows. 1. The greens of 129 Korean golf courses consisted of 2(two) green system and 1(one) green system. 2(two) green system was 50.8%, 1(one) green system was 40.7%, and 1+2 green system was 8.5% of them. 2. In 48 Korean golf courses, the green area of 2(two) green system was mostly 400~$600\m^2$(56.5%) and the green area of 1(one) green system was mostly 600~$800\m^2$(47.8%). In 48 Korean golf courses, 1.5~3% green slope appeared the highest frequency(50.0%) and the next was 3~5%(29.4%). 3. Penncross variety was the highest frequency(71.2%). The next was mixed variety (Penncross+Crenshaw, Penn A-1, Pennlinks, or Penneagle/SR 1020+SR 1019) and the frequency of mixed variety was 7.6%. 4. In 48 Korean golf courses, 70~80cm total thickness of green appeared the highest frequency(36.1%), 10~20cm thickness of green mixed sandy layer appeared the highest frequency(43.6%), and 10~20cm thickness of green coarse sandy layer appeared the highest frequency(55.6%). 0~10cm thickness of green gravel layer appeared the highest frequency(67.6%), 20~30cm thickness of green drain layer appeared the highest frequency(52.8%), and 20~30cm width of green drain layer appeared the highest frequency(44.4%). Below 1mm sand diameter used in green mixed sandy layer appeared the highest frequency(46.2%), below 2mm or over 2mm sand diameter used in green coarse sandy layer appeared the highest frequency(31.4%). 20~40mm coarse gravel diameter used in green gravel layer appeared the highest frequency(43.2%) and 0~20mm fine gravel diameter used in green gravel layer appeared the highest frequency(65.8%). 20~40mm gravel diameter used in green drain layer appeared the highest frequency(64.1%).