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        검색결과 842

        741.
        2010.03 KCI 등재 서비스 종료(열람 제한)
        This study was carried out to investigate the emissions of the air pollutants from the automobile in Suwon city. To estimate emissions due to by automobile the data of express highway and the national road used an observation traffic volume, and the other roads used a method by Vehicle kilometer traveled(VKT). In the emissions due to by automobile from Suwon city, CO was highest 36,290.4 ton/year, NOx at 19,392.1 tons, HC 5,095.4 tons and PM 2,788.7 tons was highly order. SOx emissions in the whole Suwon city by fuel types was investigated with 178ton/year from the Diesel motorcar, 26.9 ton/year and 6.2 ton/year from the gasolines and LPG automobiles, respectively. VOC emissions from the automobile was investigated with 366.4 ton/year (29.22%) from Gwonseon-gu, 329.2 ton/year (26.25%) Yeongtong-gu, 319.9 ton/year (25.51%) Jangan-gu, 238.6 ton/year (19.03%) Paldal-gu.
        742.
        2010.02 KCI 등재 서비스 종료(열람 제한)
        As air pollution has emerged as one of the most pressing urban environmental concerns, many studies have investigated the influence of air pollutants(ex: O3, NO2, SO2, Acid rain, etc.) on roadside trees and urban grove. In Korea, population density started to increase since the industrialization. Since dense population aggravates our living conditions, it's very important for us to preserve and keep a lively and refreshing nature in order to live with green nature in harmony under the current artificial environment-dominating world. In metropolitan cities, the production of pollutants increases in proportion to population growth. The vehicle exhaust gas and air pollutants from cooling and heating systems have been the major causes of acid rain. Furthermore, tire particles which are naturally produced by tire wearing on roads and other toxic substances in exhaust gas have caused a problem in human health directly and indirectly. In fact, a lot of studies have analyzed air pollution, roadside trees and plants in Korea. However, they are mostly limited to covering the influence of air pollution on the growth of plants. No paper has clearly explained why air pollution-resistant or-vulnerable species has shown different reactions yet. Even though a lot of urban roadside trees have died or stopped to grow from time to time, this kind of problem has not been properly examined. This paper is aimed to comparatively analyze physio-ecological characteristic such as photosynthesis, chlorophyll contents, soil volume water figure out their relationship with environmental factors against the expanding roadside trees in Cheong-ju, and provide basic data for management of roadside trees and elaboration of urban environment preservation policies.
        743.
        2010.02 KCI 등재 서비스 종료(열람 제한)
        본 연구의 목적은 2002년과 2003년에 심각한 도시침수 피해를 받은 삼척지역을 대상으로 유역유출모형, 제내지 모형 그리고 하수도 시스템을 통합한 도시범람모형의 개발 및 적용한 것이다. 이를 위해 하도의 1차원 모형, 시가지의 표면류의 2차원 모형, 그리고 하수도 시스템을 상호 연결하는 방안을 제시하였다. 침수모형의 입력자료 구축에 필요한 표고 및 건물의 점유율과 같은 지형정보는 입력자료의 변환과정에서 발생할 수 있는 불확실한 오차를 줄이기 위해 수치
        744.
        2010.02 KCI 등재 서비스 종료(열람 제한)
        The distribution of benthic macroinvertebrates in Daecheon stream, an urban stream of Busan, was investigated to analyze the community structure of benthic macroinvertebrates. The collection was peformed monthly at five(A~E) sites divided into three parts, upper, middle and lower, of stream from January to November, 2004. In physicochemical analysis of environmental factors, water quality parameters such as BOD, COD, conductivity and ABS were relatively increased in sites B and C. Whereas sites A, D and E showed little variations with good water quality parameters. However, water quality parameters in all surveyed sites showed gradual decrease with time toward improvement of water quality. A total of 8,226 individuals including 4 phyla, 6 classes, 9 orders, 302 families and 44 species were identified from five sites. The most dominant group was insect(class Insecta), and order Ephemeroptera and Diptera among insect was the largest member in species(30.6%) and individuals(75.0%) of benthic macroinvertebrates, respectively. The primary dominant species were Gammarus sp. and Ephemera strigata in site A, whereas Chironomus sp. and Brenchiura sowerbyi were dominated commonly in the other sites. In community analysis of benthic macroinvertebrates of Daecheon stream diversity index showed relatively low values, whereas dominance index was significantly high. Diversity index was the highest in site A, whereas the dominance index was the highest in site B. However, diversity index showed gradual increase with time showing adverse mode in dominance index. From these results, it can be suggested that long-term ecological monitoring of benthic macroinvertebrate fauna is needed for sustainable management of Daecheon stream.
        745.
        2009.12 KCI 등재 서비스 종료(열람 제한)
        This study was performed to investigate the physico-chemical properties and phytoplankton concentration from February to December, 2007 in Gwangju area reservoirs. Water samples from 20 reservoirs were analyzed. As results of the water quality analysis, the average pH was 7.6 and annual pH were 6.3 ~9.6. The higher pH of 8.6 ~ 9.6 were showed from March to August due to eutrophication. Chlorophyll-a concentration ranged from 0.4 to 164.3 mg/㎥. The highest chlorophyll-a concentration was observed in August. BOD was correlated with SS, T-N, and Chlorophyll-a(R=0.82, 0.90 and 0.84) respectively. COD was correlated with BOD, SS and Chlorophyll-a(R= 0.89, 0.77 and 0.76) respectively. The T-N/T-P ratios were 4~281, so phosphorus was considered to be the limiting factor in most of points. The trophic state showed eutrophicate states in Gwangju reservoirs. Therefore it was necessary to monitor continuously. In order to monitor the reservoirs, an algae prediction system must be used.
        746.
        2009.12 KCI 등재 서비스 종료(열람 제한)
        The purpose of this study was to examine the relations between using experience of environmental education facilities and attitude toward environmental education in parents who have elementary students in Seattle, U.S. The findings of this study represented that elementary parents have a great understanding about the importance of environmental education. Parents have a strong agreement with the necessity of environmental education in childhood. This research also found the differences between grades and facilities for environmental education in expected effect on environmental education and desirable fields of environmental education. The awareness of the importance of environmental education increased according to frequency in using environmental education facilities. In addition, the more the experiences of using various environmental education facilities, such as museum of natural history, science museum, arboretum, and aquarium expanded, the more educational effects positively increased over time.
        747.
        2009.12 KCI 등재 서비스 종료(열람 제한)
        Urban forest area in South Korea has been increased up to 20.8% of national land as of 2007 by the mergence of municipalities and counties. The rate of park and green tract among urban forest averages out to about 4% nationally but the Capital, Seoul, almost 105% level, not easy to split the two. Park and green has positive management system because of its infrastructure attribute and relevant security obligation standard while urban forest left alone with no such concerns. The most important reason of the negligence comes from institutional inertia although it is possible to be managed functionally by forest laws as like forests of park, landscape, wind and noise protection, and timber product. As a results, it reaches below than 92.64% of the national average level of the timber stockpile especially in the metropolitan areas and loses broad acres rapidly due to the easy conversion system to the urban land usage. Therefore, there must be required some alternative methodologies to conserve and foster it. The paper proposes the four urban forest management types and their control methods. The four types divide into conservation, foster, development, and reservation ones. Also it suggests the five furtherance tract types with the combination among the four earlier types, optionally having one of the six aim climaxes and recommends the standardization of operation design. The total green quantity index of urban forest also suggested by the weight method according to location and DBH class. The case study of the suggested model was executed on the Daejon Metropolitan area and its index calculated as 110.4% level compared with the acreage.
        748.
        2009.12 KCI 등재 서비스 종료(열람 제한)
        도시숲은 도시민의 건강욕구 충족 및 건전한 도시 이미지 창출을 위한 중요 자원이다. 도시 환경과 대조를 이루는 숲의 환경요소들은 도시의 미적 아름다움 증진, 대기환경 개선, 미기후(微氣候) 조절 등 건강한 도시환경을 만들며, 이를 배경으로 시민들은 쾌적한 생활을 향유하며 살아가게 된다. 결과적으로, 도시숲의 관리와 쾌적한 활용은 자연과의 공생을 도모하는 실천적인 수단으로써 개인뿐만 아니라 사회에도 긍정적인 기여를 하게 된다. 본 연구는 도시숲 조성 및 관리를 위한 기초자료 제공을 목적으로 광주광역시 소재의 제석산을 대상으로 방문객들의 이용행태와 도시숲 이용 의식 및 요구도를 조사 분석한 것으로 그 결과를 정리하면 다음과 같다. 도시민들은 도시숲이 가져다주는 맑은 공기와 물 그리고 물, 바람, 새소리와 같은 자연 고유의 소리를 즐기며, 대다수가 건강과 운동을 위해서 1주일에 1~2번, 혼자 또는 가족, 친구와 함께 숲을 찾고 있다. 숲에서는 주로 1시간 30분~2시간 정도 체류하며, 등산 또는 산책을 즐겨한다. 이들은 도시숲이 도시민들에게 휴양 및 쉼터기능을 제공하고 도시의 오염된 공기를 정화해주기를 기대한다. 또한 잘 정비된 등산로/산책로, 화장실 등 위생시설과 자연관찰 프로그램과 운동 프로그램에 참여하기를 원한다. 추후 사유림을 공유화하기 위한 기금 모금 마련에는 다소 유보적인 입장을 취하고 있으며, 공유화된 숲은 산림욕장이나 휴양림으로 활용하고 싶어 한다. 이상의 결과를 바탕으로, 도시민들에게 건강과 휴양 기능이 충분히 발휘되고 도시 쾌적성(amenity)을 향상 시킬 도시숲 조성 및 관리 체계 확립이 필요할 것으로 본다. 따라서 본 연구에서 수행된 도시민들의 도시숲 이용행태 및 이용 의식 분석은 도시숲의 효율적인 관리 및 운영 방안 제시에 다양한 시사점을 제공할 수 있을 것으로 본다. 이와 더불어 향후 연구에서는 도시숲 이용 분석에 대하여 도시숲의 유형별 접근이 필요하고, 또한 전문가와 관리자적 측면에서 도시숲의 운영 및 관리실태 파악을 수행함으로써 도출된 방안의 적용 가능성 범위를 높여가야 할 것으로 본다.
        749.
        2009.11 KCI 등재 서비스 종료(열람 제한)
        Obesity affects various kinds of adult diseases and is a principal cause of injuring people's health. Physical activities are very important to solve the obesity problem and green spaces are good place to take physical activities. In order to examine the utilization of green spaces for physical activities to improve health, the survey was implemented in regards to recognition of health, forms of use of green spaces for physical activities. Only 8.1% of respondents didn't care about health, but 91.9% of them were interested in health more than ‘commonness’. 95.2% of respondents knew that obesity has an effect on various adult diseases, and 93.1% of respondents cognized that it's possible to prevent obesity by doing physical activities. More than half of respondents replied that the types of green spaces utilized for physical activities were small-scale neighborhood parks and mini parks around house. About 70% of respondents took walking as a type of physical activities. 53% of respondents utilized green spaces one or two times a week, while 25% of them utilized the places at least three times a week to take physical activities. 91.8% of respondents took exercise for more than 30 minutes. These results are expected to promote health because many experts encourage people to take physical activities at least three times a week because fats of human body begins to burn after 30 minutes from start of physical activities. In the utilizing time of green spaces, evening or after work(56.7%) was higher than morning or before work(35.1%). 71% of respondents usually visited green spaces by walking. This study shows green spaces are good places for physical activities and have boundless potentialities improving people's health.
        751.
        2009.09 KCI 등재 서비스 종료(열람 제한)
        This paper has attempted to improve the quality of urban environment in terms of the management of urban green tract and suggest a way of coexistence between human and nature by proposing a plan to establish green network using an urban green zone based on ‘linear concept’ instead of point and plane concepts. The results have turned out as follows: 1. According to current status of forest functions, forest recreation area has reached 39.6%, satisfying citizens’ needs. However, the space for living environment is just about 20% with a lack of a green zone. Therefore, it’s been necessary to establish green network using roadside trees and take advantage of them as sustainable living space along with existing green tract. 2. With forest in the suburbs and Geumhogang which is the tributary to the Nakdonggang, Sincheon (stream) flows through the downtown. It connects mountains including Waryongsan from the south to the north around Duryu Park and Dalseong Park. Therefore, the water system that passes through Palgongsan (Mt.) and Biseulsan (Mt.) would make it possible to connect with the parks in the downtown. 3. According to this paper, it appears that it’s necessary to establish green network through roof or wall greening by focusing on the existing green tract in the urban parks and suburbs and taking advantage of roadside trees and water system.
        752.
        2009.06 KCI 등재 서비스 종료(열람 제한)
        본 연구에서는 진주시 가호동 일대의 옥상조경시설이 조성된 지역을 통하여 수목의 현황 및 특성을 파악하고 온도의 저감정도를 조사하기 위해 식물의 존치와 토양의 분포가 옥상바닥면의 온도와 차이를 비교하였다. 옥상내 식재된 수목은 관목이 대부분이었으며, 생육은 폴리비안(Polybian) 건물의 반송이 고사되는 것이 육안으로 관찰되었으며, 모든 건물에서 사용되는 토양은 인공경량토가 아닌 마사토 및 모래로 지상보다 열악한 환경조건인 옥상에 건물의 지반하중의 부담을 감소시키며, 배수성 및 통기성을 향상시킬 수 있는 인공경량토로 대체하는 것이 바람직한 것으로 판단된다. 옥상 조경시설물의 온도 또한 대기온도가 13℃일때 옥상의 방수층 바닥온도는 30℃이상으로 맑은날 대기온도가 증가할수록 일사량 또한 증가하여 바닥면의 온도를 더욱 증가시킬 것으로 판단된다. 단기간의 옥상건물의 온도비교 분석은 해당일의 날씨 등의 요인으로 데이터의 신뢰가 다소 떨어질 수 있는 요인이 되며, 일일 데이터만으로는 여름철 전체의 대표성을 가질 수 없다. 따라서 차후 여름철 온도저감의 전반적 효과를 파악하는데 있어 신뢰성을 높이기 위한 자동 데이터 장비를 이용한 측정이 필요할 것으로 사료된다.
        754.
        2009.05 KCI 등재 서비스 종료(열람 제한)
        A village grove is the one fostered and protected for a district's traditional life near the vicinity of a ruderal village. This research is done to grasp potential natural vegetation, to use a basis data needed for its management and preservation as well as restoration project by examining the vegetation and flora targeting a village grove of the southern district of Gyeonggi-do which has been seriously damaged subsequent to a rapidly progressing city development. According to the survey, there appeared an outgrowth flora of Pteridophyta consisting of 69 families, 136 genera, 20 varieties, 3 forms, 170 species-totalling to 193 taxa. Urbanization index was revealed to 4.55% and naturalization rate 6.74%. In life-cycle pattern, perennials were found to show the highest distribution rate; in infiltration-multiplication strategies, human wave tactics type was found to be the highest 51%, consisting of 98 species, and naturalization rate also was revealed to be 6.74%. The vegetation unit was divided into a total of 11 patterns, such as a community of Pinus densiflora community, Pinus densiflora-Pinus rigida community, Pinus densiflora-Castanea crenata community, Pinus rigida community, Pinus rigida-Castanea crenata community, Pinus rigida-Quercus acutissima community, Castanea crenata community, Castanea crenata-Quercus acutissima community, Quercus acutissima community, Quercus acutissima-Robinia pseudo-acacia community and Robinia pseudo-acacia community. Quercus acutissima community is of a community type dominated by Quercus acutissima, in place of Pinus densiflora community selected by natural succession.
        755.
        2009.04 KCI 등재 서비스 종료(열람 제한)
        This study was investigated on biodiversity and life forms of plants distributed in 28 wetlands on Jeju city, in order to apply wetlands to nature exploration sites for environmental education. The 131 kinds of the plants were found on 28 wetlands. The plant biodiversity was relatively high in Ban pond, Jeongmool, Mosanimool, Dolgaegi pond, Woot pond, and etc. The 5~6 life forms of plants, relatively high in variousness to other wet lands, were distributed in Mosanimool, Dolgaegi pond, Woot pond, and Yeonhoa pond as well as Jeongmool and Yongsoo reservoir. The 71 kinds, which correspond to 54.2% of plants observed in this study, were identified as hydrophytes. The 4~5 forms of hydrophytes were distributed on 23 wetlands, including Jeongmool, Mosanimool, Yongsoo reservoir, Ban pond, Dolgaegi pond, and etc. In conclusion, 5 wetlands such as Jeongmool, Yongsoo reservoir, Dolgaegi pond, Mosanimool and Woot pond were high in variousness of plant life forms as well as biodiversity of plants. These results suggest that 5 wetlands above could be applied as nature exploration sites. In addition, Korean rare and endangered plants such as Isoetes japonica, Nymphoides coreana, Utricularia japonica and Sparganium stoloniferum in this study need to be conserved.
        756.
        2009.04 KCI 등재 서비스 종료(열람 제한)
        The development of modern cities is growing rapidly. The first thing that can be recognized in the current image of the complex and chaotic urban city environment is the deprivation of pedestrian space due to the rapid growth of pathways for automobiles. Pedestrians became secondary to automobiles. Therefore, to offer the comfort and convenience of city life and bring vitality to the external environment, pedestrian-only space will be needed; not the space with strong exclusion of pedestrian rights over the current industrialized urban environment but the space with emphasis in terms of pedestrian walks. In other words, the space design for the pedestrians is urgently needed and it has to be developed through extensive studies. Therefore, this paper is based on the possibilities of pedestrian space that can promote urban activities. It is dealt with the general theories, traffic problems, environmental problems and historical space development. In addition, the current pedestrian conditions in domestic pedestrian-only roads and the examples of the streets that have no cars will be presented; both domestic and foreign. By observation of the pedestrian-only roads, the feasibility of pedestrian-only road and potential capability will be discussed Improvements in the street without cars can provide directions for future development.
        757.
        2009.03 KCI 등재 서비스 종료(열람 제한)
        인간의 모발은 금속을 배설하는 시스템이며 몸에서 금속의 함유량을 반영한다. 본 연구에서는 현대인의 유해 중금속 노출 정도를 파악하고, 질병 예방 혹은 환경 개선 예측의 도구로서 모발 분석의 필요성에 대해 알아보고자 하였다. 많은 만성 질환은 금속의 축척과 관련이 있을 것으로 예상되며 몇몇은 유해 중금속과 관련이 있다. 이에 서울, 수도권지역에 거주하는 20대에서 40대의 성인 남녀 120명(남자 61명, 여자 59명)을 대상으로 시료를 채취한 후 유도 결합 플라즈마 질량 분석기를 사용하여 Hg, Pb, Cd, Al, As, U, Bi, Sb, Ba, Be의 10가지의 독성 미네랄의 함량을 측정하였다. 분석 결과 20대의 유해 중금속 함량 분석에서는 기준치 이상을 보이는 원소가 없었으나, 알루미늄(Al)과 안티몬(Sb)의 수치가 높게 나타났다. 30대의 경우도 기준치 이상의 원소는 보이지 않았으나 수은(Hg)과 알루미늄(Al)의 농도가 높게 나타났다. 40대의 경우 기준치 이상의 수은(Hg)과 안티몬(Sb)이 검출되었다. 또한 성별에서는 남성의 경우 수은(Hg)이, 여성의 경우 안티몬(Sb)이 기준치보다 높은 것으로 나타났다. 산업의 발달로 인해 유해 중금속은 여러 가지 경로를 통해 우리 몸속으로 들어오며, 몸 밖으로 배출되지 못하고 인체에 계속 쌓여 면역 기능과 호르몬 기능이 저하시키고 질병을 유발하게 된다. 이에 유해 중금속의 노출 정도를 분석하여 그에 맞는 대체요법을 시행한다면 질병을 예방하고 환경을 예측할 수 있다. 인체 내에 중금속의 추적 상태를 알아보기 위해 우리나라에서도 모발 분석에 대한 관심과 연구를 통해 우리의 건강 상태를 유지하기 위한 수단으로 활용되기를 시사하는 바이다.
        758.
        2008.12 KCI 등재 서비스 종료(열람 제한)
        This study was investigated on the consciousness of middle school students in Jeju city about the environmental education through questionnaire, in order to understand the actual conditions of environmental education and to find out the solutions about them. Middle school students responded that environmental education in school was taken at the class for the special activity or voluntary service, not in regular class and was worked as in the form of the field trip. They generally obtain the knowledge and informations on the environmental problems from mass media such as TV, radio and newspaper than from regular environment class in school. And 36.0% of students perceive that environmental education is needed as a regular class and 31.3% of students perceive that the regular class in school is effective to the environmental education. These results suggest that many students are interested in the regular environment class in school. However, the most of students responded that the regular environment class in school is not worked or is not worked at all, suggesting that the environmental education in middle school is not worked effectively. Most of students prefer to take the environment class in the form of observation or field trip, and they think that observation or field trip is more effective to obtain environmental informations. In conclusion, the special activity such as observation or field trip needs to be supplemented to regular environment class in order to improve the environmental education in middle school more effectively.
        759.
        2008.12 KCI 등재 서비스 종료(열람 제한)
        The purpose of this study is to analyze city residents' preference to experiencing activities for Green Tourism. A Questionnaire survey was conducted in fall, 2006. The sum of 515 copies was analyzed. Residents of Daegu city preferred 'health/leports experience' and 'traditional food experience', among theme experiential activities. While present providing experience programs are rural-life experiences, which are convenient for provider aspect. By the result of cross-table analysis, there are many differences between groups by gender & age. Men preferred 'health/leports experience', while women preferred 'traditional food experience'. The mean values of preference by 14 experiencing activities showed high at 'health experience', 'traditional food experience', 'leports experience', which represents health & wellbeing trends. By the result of t-test & ANOVA, there also are many differences between groups by gender & age. Especially significant differences were shown by age group. Three factors were categorized. 'traditional/wellbeing/health experience', 'nature-play experience' and 'life-culture experience' were those.
        760.
        2008.08 KCI 등재 서비스 종료(열람 제한)
        본 연구는 해양특별시의 설치를 최고의 당면과제로 추진하고 있는 부산광역시의 해양환경관리 자치역량를 분석한 논문이며, 연구방법으로는 Lester(1990)가 주장하는 환경자치의 역량분석기법을 사용하였다. Lester(1990)의 연구방법에 따라 본 연구에서는 분석의 변수로서 자치단체장의 의지와 물적 토대 통을 사용하였다. 먼저 자치단체장의 의지를 분석한 결과, 부산광역시장과 관계공무원의 해양과 환경에 대한 관심도는 우리나라 제1의 해양토시라는 특수성에 비추어 비교적 낫은 수준이었다. 그리고 물적 토대를 측정하기 위하여 담당공무원수와 해양환경예산규모를 다른 7대 광역시와 비교한 결과, 다른 대도시에 비하여 높지 않은 수준이었다. 결론적으로 부산광역시의 해양환경관리 자치역량 수준은 퇴보형이거나 아니면 지체형에 속한다고 판단할 수 있었다.