• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2011.03a
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• pp.80-80
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• 2011

최근 환경과 건강에 대한 관심이 증대되면서, 천연 섬유를 소재로 사용한 최종 제품 역시 고급화 및 고기능화되고 있는 추세이며 섬유항균가공분야에 있어서도 천연 추출물을 이용한 항균가공이 주목을 받고 있다. 현재 항균가공에 사용되고 있는 항균제는 일반적으로 합성항균제를 사용하고 있고 이는 거의 대부분 자극성 화합물로써 인체에 잠재적 유해요인이 될 수 있고 제조 및 가공과정에서 환경오염을 유발시키는 문제점도 발생되고 있다. 반면 천연추출물을 사용할 경우 합성물질에 비해 포름알데히드 검출 등의 인체 안정성의 불안이 적어 건강차원에서 그 인식이 점차 증대되고 있는 추세이다. 천연항균물질에는 chitosan이나 식물에서 추출된 천연항균물질 등이 있는데 특히 식물에서 추출된 천연항균물질은 피톤치드(phytoncide)라고 표현되고 있으며 이는 수목들이 해충이나 미생물 등으로부터 자기방어를 위해 공기 중으로 발산하는 방향성의 항생물질을 뜻하는 말이다. 본 연구에서는 식물 중에서 피톤치드 정유의 함량이 많다고 알려진 측백나무과의 편백나무 정유를 이용하였으며 편백나무 정유가 식물성 천연 오일형태이므로 가공 처리 시 물과 계면이 발생되기 때문에 HLB(Hydrophilic Lipophlic Balance) 조건에 따른 최적 유화조건을 선정하였으며 편백나무 정유를 이용한 면직물의 항균 기능 부여를 위한 시험으로 편백나무 정유 처리 농도에 따른 항균성을 평가해 보고자 하였다. 실험 결과 편백나무 정유는 HLB 15이상 계면활성제 사용 시 물에 용해성이 좋고 안정된 에멀젼 상태를 보였으며 제조된 편백나무 정유 가공액 5%이상 처리 시 Staphylococcus aureus과 Klebsiella pneumoniae의 99.9% 정균감소율을 나타내었다.

• Spatial Information Research
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• v.3 no.2
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• pp.161-177
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• 1995

본 연구의 목적은 도시공원 조성시 물리.생태적 여건과 이용을 고려해 건강한 도시공원을 조성하는데 기초자료를 제공하는데 있다. 따라서 본 연구는 서울 서초구 양재시민의 숲(공원)을 대상으로 조성된 공원의 물리.생태적 여건과 이용의 관련성을 조사해 나타난 문제들을 GIS와 설문조사를 통해 분석했다. 조사항목으로 과거토지이용, 현토지이용(성토지역, 동선, 나지, 시설물), 식생(수고, 지하고, 최근색재지, 유실수, 불량식재지), 배수상태, 야간조명, 소음, 이용현황(이용밀도, 이용행태, 접근동선) 등이며 수고+소음, 지하고+이용밀도, 과거토지이용+배수불량, 이용행태+접근동선 등을 중첩해 문제점을 분석했다. 그 결과 본 공원은 식재, 배수, 소음, 이용(주차, 야간이용)등의 문제를 앉고 있으며 이에 대한 해결방안으로는 숲내 공지확보, 수로나 연못설치, 방음벽 설치, 주차장 확보 등이다. 설문조사에서 제안된 시설과 대안으로는 공원주변의 양재 화홰단지와 연계한 화단 및 화훼전시공원(43%), 현공원의 잠재력을 활용한 식물원 혹은 수목원(58%), 과일나무 공원(32%) 등을 들 수 있다. 결과적으로 이공원과 같이 규모가 큰 공원을 조성시에 위와 같은 문제들을 해결하기 위해서는 조성기간중 다양한 문제를 수용할 수 있는 유연한 단계별 계획이 필요할 것이다.

• Journal of the Korean Institute of Landscape Architecture
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• v.42 no.3
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• pp.64-75
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• 2014

The purpose of this study is to analyze the effects of satisfaction in neighborhood park environments located in the Changwon-si of Gyeongsangnam-do, South Korea, on physical activity, the number of parks used for health improvement, and health levels based on Body Mass Index(BMI). Accordingly, a survey was conducted of 429 nearby residents and users of eight neighborhood parks located in urban areas of Seongsan-gu and Uichang-gu in the Changwon-si. The correlation between the environmental perception of neighborhood parks and physical activity and health, which was observed in the survey results, was analyzed using one-by-one linear regression analysis. By summarizing the study results, it was found that the primary reasons for avoiding park use were lack of time, time and effort required to reach the park(i.e., distance from the park), and lack of facilities within the park. Conversely, the primary reasons for using the park included accessibility, walking or strolling, leisure facilities, trees or shade, and diversity in exercise areas. In the case of park users, walking or strolling was the most common activity in the park. On average, park users walked to the parks for 10 minutes and exercised for an hour at least twice per week. With respect to the physical environment of the parks and surrounding areas, park users showed a high level of satisfaction with the distance between their houses and parks and the street environment. On the contrary, they exhibited low levels of satisfaction with water spaces and sightseeing within the parks. Subsequently, it was shown that the number of people using the parks for physical activities and health improvement was positively influenced(within a 5% significance level) by the intent to use the park for exercise, time spent in the park, satisfaction with park use and health improvement, distance to the park, and the convenience of using the park for the elderly. However, only the health improvement gained from park use was found to exhibit a correlation with BMI at the 10% significance level. Continuous accumulation of practical case studies on physical activities in parks and their health improvement effects is required. Through this, park spaces that are under the threat of reduction or elimination owing to various development plans can be conserved and expanded. Furthermore, such case studies can be used to provide data as the basis for deriving park plans and designs that improve parks' functions as sites of physical activity and health improvement.

• Journal of Wetlands Research
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• v.26 no.3
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• pp.254-265
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• 2024

This study was conducted to investigate the vascular flora of two outstanding forest wetlands(OFW) in Goheung-gun, Jeollanam-do, and to prepare an efficient management plan for forest wetlands through comparison with previous studies. Fieldwork was conducted seasonally from May to October 2023, The flora in the two OFW located in Goheung-gun, Jeollanam-do, consisted of 117 taxa such as 55 families, 92 genera, 108 species, 7 variants, 1 variety and 1 hybrid. The endemic plants were 4 taxa and rare plants were 7 taxa. Floristic target plants were V class 2 taxa, IV class 6 taxa, III class 8 taxa, II class 4 taxa and Iclass 21 taxa. Climate change adaptation plants were 10 taxa and naturalized plants was 1 taxa. Obligate wetland plants were 16 taxa, Facultative wetland plants 10 taxa and Facultative plant 4 taxa. OFW functioning a typical wetland ecosystem in Goheung-gun had been providing habitats for a variety of rare plants, such as the Habenaria radiata and Drosera rotundifolia. But those ecosystems would be suffering a critical disturbance such as human interference, the invasion of naturalized plants, and change of wetland function through landization for a short future. Therefore we suggest those OFWs should be designated as a Forest Genetic Resource Reserve in order to keep the ecosystems permanently and to manage them more soundly and efficiently.

• Journal of the Korean Institute of Landscape Architecture
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• v.44 no.5
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• pp.68-80
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• 2016

This study analyzed the influence of the perception of physical environment on user satisfaction and park use when people use the park to improve their health. The study is focused on neighborhood parks in Suseong-gu, Daegu city. Statistical analyses were employed to data collected from 143 visitors on site. First of all, in the perception evaluation of the physical environment of the park, accessibility and pedestrian environment are the highest at 4.04, while water space and attractions in the park as the lowest parts are at 2.32 and 2.66. After conduct factor analysis to type 22 physical environmental awareness components, five main factors--Comfort, Availability, Amenity, Facilities convenience and Visuality--were classified. Then, satisfaction and influence on park use were analyzed. As a result, the factors affecting user satisfaction were comfort, availability, amenity and facility convenience. Among them, the category of amenity was the most influential factor at 0.315. The factors affecting the park use were availability and amenity. Availability factor had a higher influence at 0.396 than amenity at 0.293. Therefore, in order to improve satisfaction and park use for health improvement, it is necessary to secure sufficient green areas and create a pleasant environment. Also, it is necessary to improve the quality of walkability from homes to parks, trail improvement and other improvements.

• The Journal of the Convergence on Culture Technology
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• v.5 no.3
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• pp.251-256
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• 2019

With the fast development of modern society, the interests concerned about the significance of nature and environment become major issue nowadays. Especially, threats for our health due to severe environmental pollution and fine dusts become serious problem with the fast industrialization of our society, and extra attention is focused on interests about conservation of nature and management of forest resources. Precious forest resources, however, are not properly managed and destroyed vainly due to frequent fire, damage by storms and floods, and unplanned land development. So systematic and scientific construction and management of forest resources are required in order to solve these problems efficiently. Furthermore, implementation of the forest resource information database that contains information of trees, Topography, ecosystem of the forest is urgently needed. In this paper, we design and implement the forest resource information database based on the information of location based forest resources and Topography using forest images taken by a drone, that enables us to manage forest resources efficiently, make decision for logging, and construct a future tree-planting project easily.

• The Journal of the Convergence on Culture Technology
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• v.8 no.2
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• pp.59-67
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• 2022

The main purpose of this study is to quantitatively grasp the effectiveness of the gardening program by conducting a gardening program to induce active activities of the elderly and to induce healing functions and social activities, and then observing the results before and after implementation. In order to achieve the purpose of the study, as a result of conducting 30 gardening programs for 20 elderly people at two elderly care facilities, the measure of depression was found to have an improvement effect as a practice-oriented program, and it was found to revitalize the elderly. In addition, it was found that the quality of life was improved by the gardening program, and it was found to be helpful in activating the brain.

• Journal of The Korean Society of Grassland and Forage Science
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• v.39 no.4
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• pp.216-226
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• 2019

This study was to investigate the effect of the horse grazing intensity on the vegetation of the S. quelpaertensis, and the physiological changes of the horse. This experiment was conducted at the community of the S. quelpaertensis (altitude of 550m) with the grazing intensity of 1.0AU(500kg), 1.5AU(750kg) and 2.0AU(1,000kg) at 30m × 30m for one week, and then the growth characteristics of the S. quelpaertensis, the changes of the vegetation, the damages on trees and the changes in the physiological characteristics of the horses was investigated and compared before and after the horse grazing. As the results, the 2.0AU grazing land showed that the culm number had the inverse correlation (r=-0.902, P<0.01) to the other lands and the species diversity index of lower-level vegetation showed the correlation (r=0.773, P<0.01) as increasing the grazing intensity.

• Journal of Korean Society of Forest Science
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• v.86 no.4
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• pp.415-421
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• 1997

The objectives of this study were to obtain standardized basic data on cambial electrical resistance (CER) of ornamental trees to be used for estimation of tree vigor and to compare CER between shrubs, deciduous, and coniferous trees in relation to bud opening, flowering, and growth cessation. Eighty healthy trees with four trees each for twenty ornamental tree species growing at an university campus in Suwon were selected and their CER was measured using a Shigometer every week from March to May, once a month from June to October and every two weeks in November, 1996. The CER of all tree species was high in March, started to decrease in April, maintained minimum in May through August, began to increase in September, and returned in November to the similar high level to March. Among the 20 species, Metasequoia glyptostroboides showed the lowest($5.5k{\Omega}$) annual average CER, while Cercis chinensis and Ligustrum obtusifolium had the highest($22.7k{\Omega}$, $22.9k{\Omega}$) annual average CER. The lowest CER($2.4k{\Omega}$) in summer(June through August) was obtained from Wisteria floribunda, second lowest($2.5k{\Omega}$) from Metasequoia glyptostroboides, the highest CER($46.8k{\Omega}$) during dormant season from Euonymus japonica, and second highest($45.0k{\Omega}$) obtained from Ligustrum obtusifolium. The CER of most species, particularly shrub species, started to decrease with bud opening, and many species, particularly shrubs and deciduous trees with large amount of flowers, showed sharp decrease with flowering. When CER was compared between shrubs and trees, shrubs showed higher average CER than trees, and seasonal difference in CER of evergreen species was smaller than that of deciduous species. It is interesting to note that the deciduous Metasequoia glyptostroboides had the lowest annual average CER.

• Journal of Korean Society of Forest Science
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• v.110 no.4
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• pp.590-600
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• 2021

This study compared the stand structure of Abies koreana forests between Mt. Jirisan and Mt. Hallasan by analyzing DBH distribution, stem vitality, crown structure, importance value, species diversity, and DCA. The data were acquired through the national long-term ecological research project conducted by the Ministry of Environment. In the comparison of DBH class distribution, the stem density of A. koreana with DBH < 20 cm was higher in Mt. Hallasan than that in Mt. Jirisan; however, the stem density of A. koreana with DBH > 20 cm was higher in Mt. Jirisan than that in Mt. Hallasan. For A. koreana stem vitality, the ratio of alive standing was higher in Mt. Jirisan (72.0%) than in Mt. Hallasan (60.7%), whereas the ratio of alive leaning was higher in Mt. Hallasan (10.2%) than in Mt. Jirisan (1.1%). A. koreana stand in Mt. Jirisan was a mature stand with four evenly developed and distinct layers, whereas the tree layer in Mt. Hallasan was less than 10 m and the stand had three layers without a subtree layer. Mt. Hallasan's importance value of A. koreana was 39.4% higher than Mt. Jirisan's importance value of 26.6%. The species diversity of the A. koreana community of Mt. Jirisan was 2.52 times higher than that of Mt. Hallasan, which was 1.58. DCA results revealed that the average distance between Mt. Jirisan and Mt. Hallasan was relatively distinguished, and the degree of scattering of species composition of Mt. Jirisan was relatively dense compared with that of Mt. Hallasan.