• 제목/요약/키워드: environmental indicator

검색결과 1,195건 처리시간 0.026초

서울 북부 지역 옹달샘에서 분리한 Yersinia 속균에 관한 연구 (A study on the Yersinia Isolated from Spring Water in Northern Area of Seoul)

  • 변신철;노우섭
    • 한국환경보건학회지
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    • 제24권1호
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    • pp.141-150
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    • 1998
  • This study was performed to investigate the distribution of Yersiniae and correlation between Yersiniae and indicator organism by time and area in spring water located in northern part of Seoul. Samples collected from 46 spring waters located in four mountains(Dobong, Bukhan, Surak, Bulam) were inspected to detect Yersiniae and indicator organisms. And also there were examined bioserological characteristics and resistance of ahtibiotics of the isolated Yersiniae.The result were as follows. 1. The isolation rate of Yersiniae was 22% in February and 20% in April. The isolated species were 6 strains of Y. enterocolitica, 6 strains of Y. aldova, 4 strains of Y. intermedia and 43 strains of Y. pseudotuberculosis. The serotype of Y. pseudotuberculosis isolated from was all O:5 and biotype of Y. enterocolitica isolated from was all O:3. 2. The Geometric mean of standard plate count, coliform, and psychrotrophilic bacteria were 3.4 CFU/ml, 1.2 MPN/100 ml and 33.0 CFU/ml in February and 3.1 CFU/ml, 1.5 MPN/100 ml and 20.5 CFU/ml in April respectively. There was no significant difference by time and area but the indicator organisms were correlated significantly with each other (p<0.05). 3. Because detection of Yersiniae was not statistically associated with indicator organism, Yersiniae can be detected in the spring water approved microbiologically (p<0.05). 4. The Yersiniae isolated were resistant to Ampicillin, Colistin, Carbenicillin and Coilstin. All isolaed Y. enterocolitica were resistant to Ampicillin (100%). In the case of Y. pseudotuberculosis, only 1 of 3 isolated was resistant to Colistin but susceptible to other antibiotics.

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우리나라 대도시의 지속가능발전성 비교평가 (Comparative Appraisal of Sustainable Development in Korean Metropolis)

  • 김재한
    • 한국지역지리학회지
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    • 제13권3호
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    • pp.235-253
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    • 2007
  • 본 연구에서는 우리나라 7대 대도시를 대상으로 지속가능발전성을 비교 평가하였다. 국가지속가능발전지표 목록 등을 참고하여 3개 부문, 14개 지표군, 42개 하위지표를 선정하여 정량적 지표체계를 구축하였다. 대도시간 비교분석을 위해 지표별로 7대 대도시의 평균값을 기준으로 지속가능성을 상대평가 하였으며, 이 때 필요시 역기능지표를 순기능 지표화 하여 모든 지표를 동일한 스케일로 비교 가능하도록 하였다. 그 결과 서울이나 울산과 같이 특정산업이 집중한 도시에서 경제적 지속가능성이 높았으나 환경적 지속가능성은 낮았고, 지역경제가 낙후된 광주에서 환경적 지속가능성이 높은 것으로 나타났다. 부산, 대구, 인천은 전반적으로 지속가능성이 낮은 반면, 대전은 3개 부문 모두에서 조화롭게 지속가능성이 높아 대도시 중 통합적 지속가능성이 제일 높은 것으로 나타났다.

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지방의제 21의 정량적 분석을 위한 평가모델의 개발 (Development of the Evaluation Model for the Quantitative Analysis of Local Agenda 21)

  • 우형택
    • 한국환경과학회지
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    • 제15권12호
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    • pp.1205-1220
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    • 2006
  • This study was conducted to develop the evaluation model which can analyse local agenda 21 comprehensively and systematically from the making process to the designed contents. The evaluation model was devised through the theoretical review of local agenda 21 and designing the evaluation system composed of evaluation domains, related indicators and scales. The evaluation system was carefully constructed based on planning theories and the discussion and agreement of specialists regarding local agenda 21. This model has three evaluation domains of process, content, and evaluation of implementation with different weighting values. Each domain contains large indicators, medium indicators and small indicators. Each indicator has different weighting value according to its importance. Basically, each small indicator was scored by 3 or 5 point scale. This evaluation system can not only analyse local agenda 21 quantitatively, but also find out good points, problems, and limits of various phases of planning and implementing local agenda 21.

Use of Geographic Information System Tools for Improving Mobile Source Atrmospheric Emission Inventories

  • Shin, Tae-joo
    • Environmental Sciences Bulletin of The Korean Environmental Sciences Society
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    • 제3권3호
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    • pp.143-150
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    • 1999
  • Mobile source emissions are important inputs to photochemical air quality models. Since most mobile source emissions are calculated at the county-level, these emission should be geographically allocated to the computational grid cells of a photochemical air quality model prior to running the model. The traditional method for the spatial allocation of these emissions has been to use a "spatial surrogate indicator" such as population, since grid-specific emission calculations are very labor-intensive and expensive, plus the necessary data are often not available for such grid resolutions. Accordingly, new spatial surrogate indicators for mobile source emissions(specifically for highway emissions) were developed using Geographic Information Systems(GIS) tools due to the spatially variable nature of mobile source emissions. These newly developed spatial surrogate indicators appear to be more appropriate for the allocation of highway emissions than the population surrogate indicator. It was also revealed that the conventional spatial allocation method underestimates the maximum levels of air pollutant emmissions.mmissions.

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하천복원사업 평가기준의 과제 (The Stream Restoration Program Evaluation Issue)

  • 최미희
    • 환경영향평가
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    • 제15권1호
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    • pp.13-22
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    • 2006
  • The Korean government adopted the integrated stream water management policy recently with growing perception that natural disasters and pollution in Korea have been due not only to such human factors as urbanization and industrialization, but also to the policy of functionally separated management of irrigation, flood control and ecological management. Contrary to its good intention, research result shows that it is not realistic to expect that this new integrated policy in Korea will work well. In order to be an effective policy and program evaluation, this paper suggests that evaluation indicator on related programs and projects should be made through bottom-up process. For example, environmental benefit should be taken into account rather than just economic benefit, and cultural and social characteristics in the project region should be also considered seriously.

指標植物을 이용한 大氣汚染度 調査硏究 -대전시를 중심으로- (A Study on the Air Pollution Level in Tae Jon Area by Botanical Indicator)

  • Oh, Sob Yun
    • 한국환경보건학회지
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    • 제10권2호
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    • pp.69-77
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    • 1984
  • Air pollution has been one of the severe problems in city area. Sulfur dioxide is the major pollutant among the air pollutants. And the lichen as a botanical indicator have been used to predict the air pollution level. This study was carried out to evaluate the air pollution level in Taejon area through the field survey which were checked lichen status and sulfur dioxide content in the atmosphere. The results were as follows 1. The average sulfur dioxide content in Taejon area was 0.031ppm. The comparison of measurement methods were regression equation, Y= 0.357$\times$+0.014 and correlation factor, r = 0.771. 2. The maximum point of the SO$_2$ level was site No. 2(Daehwa-Dong), 0.087 ppm and the minimum, site No. 8 (Doma 2-Dong), 0.009ppm. 3. Total amounts of sulfur dioxide yearly emitted from Taejon area by fuel consumption estimated 29829.6 tons. 4. The relationship between degree of lichen and sulfur dioxide contents were 0.000~0.020ppm : Zone No. 2 0.020~0.060ppm : Zone No. 1 over 0.060ppm : Zone No. 0

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Characteristics of Vascular Plants in East Asian Alder (Alnus japonica) Forest Wetland of Heonilleung Royal Tombs

  • Cha, Du-Won;Lee, Seung-Joon;Oh, Choong-Hyeon
    • Proceedings of the National Institute of Ecology of the Republic of Korea
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    • 제2권3호
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    • pp.188-197
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    • 2021
  • This study aimed to obtain fundamental data for demonstrating biodiversity of vegetation of East Asian alder (Alnus japonica) Forest Wetland of Heonilleung Royal Tombs. A total of 166 vascular plants (159 species, three subspecies, three varieties, and one cultivar) belonging to 132 genera and 59 families were found, accounting for 8.3% of 1,996 vascular plant species found in Seoul. Therophyte was the most common life-form of plants in Heonilleung Wetland. As for rare plant species, one Least Concern (LC) species was found. There were 15 floristic regional indicator species in the research area. Three of them belonged to floristic grades III and IV. This indicates that their habitats are discontinuous and isolated to some degree. Nineteen invasive alien plant species were found, most of which were introduced from North America after the year 1964 with a spread rate of V (widespread, WS).

Modeling of Regional Management of Innovation Activity: Personnel Policy, Financial and Credit and Foreign Economic Activity

  • Prylipko, Sergii;Vasylieva, Nataliia;Kovalova, Olena;Kulayets, Mariia;Bilous, Yana;Hnatenko, Iryna
    • International Journal of Computer Science & Network Security
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    • 제21권11호
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    • pp.43-48
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    • 2021
  • The article proposes a method of modeling a comprehensive indicator for evaluating the effectiveness of regional management of innovation activity. This will make it possible to assess the effectiveness of personnel, financial and credit and foreign economic activity of the regions from the standpoint of an integrated approach. The modeling technique is proposed to be carried out using the tools of taxonomic analysis and the calculation of a complex indicator of the effectiveness of the innovation activity management.

가문비나무림의 지형특성에 따른 식물 지표종에 관한 연구 - 중국 백두산 일대에서 남한까지 - (Study on Plant Indicator Species of Picea jezoensis (Siebold & Zucc.) Carrière Forest by Topographic Characters - From China (Baekdu-san) to South Korea -)

  • 박병주;허태임;변준기;천광일
    • 환경영향평가
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    • 제31권6호
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    • pp.388-408
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    • 2022
  • 이번 연구는 멸종위기에 처한 아고산 침엽수인 가문비나무의 지형특성에 따른 지표종을 선정하고, 생물다양성 평가에 필요한 과학적 근거자료를 마련하고자 진행되었다. 남한과 중국 내 가문비나무림은 남방한계선으로 지리적 가치가 높은 지역이다. 위도는 식물생태계의 지리적 가치에 큰 영향을 미치며, 위도와 서식지의 차이는 산림의 종구성 변화에 영향을 미친다. 지리적 차이뿐 아니라 환경변화로 아고산 식물서식지는 점차 쇠퇴하여 결국 멸종위기에 처한다. 이러한 측면에서, 지리적 가치가 높은 한국과 중국의 가문비나무림에 대한 개체군 모니터링으로 지표종을 선정할 필요가 있으며, 지표종에 대한 다양한 분석을 통해 생물다양성 평가의 기초자료를 구축할 필요가 있다. 개체군 모니터링은 한국과 중국의 가문비나무림에 87개의 원형조사구(400m2)를 설치하여 수행하였고, MRPP-test, NMS ordination 등의 과정을 통해 이에 근거하여 지표종을 선정 한 후 생물다양성 평가의 기초자료를 제시하였다. 지표종분석(Indicator Species Analysis) 결과, 해발고도별 지표종으로 상층식생에서 5분류군, 하층식생에서 18분류군을 선정하였다(p<0.05). 사면방위별 지표종으로는 상층식생 3분류군, 하층식생 16분류군을 선정하였다(p<0.05). 사면경사도별 지표종으로는 상층식생 6분류군, 하층식생 24분류군을 선정하였다(p<0.05). 자생지별 지표종으로는 상층식생 8분류군과 하층식생 65분류군을 선정하였다. 지표종들에 대한 MRPP-test 결과, 상층식생보다 하층식생에서 종조성이 다소 이질적인 것으로 분석되었다. NMS ordination 결과, 상층식생의 암석노출도와 하층식생의 위도에 따라 지표종의 환경적 요인과의 상관관계가 유의한 것으로 나타났다.

유휴농지 농업적 활용 평가지표 설정 및 현장적용 (Establishing Evaluation Indicator for Agricultural Utilization of Idle Farmlands and Field Application)

  • 김경찬;박창원;조석호;최진규;윤성수;손용훈
    • 농촌계획
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    • 제20권2호
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    • pp.127-137
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    • 2014
  • Self-sufficiency rate of food in South Korea is almost at the lowest level among OECD countries, and the decrease tend of farmland is expected to be continued. In this situation, the government has been revised the target self-sufficiency rate of food, and carried forward various policies in order to achieve it. One of those policies is the restoration business of idle farmland which is planned to carry forward after 2015. This study set up indicators evaluating effective use of idle farmland, and tried to apply in the field before carrying forward restoration business. The result of this study may be summarized as follows. First of all, it reset an evaluation indicator that was based on the evaluation indicator developed in order to set application directions of idle farmland. Next, it selected 30 idle farmlands with reset evaluation indicator among 11,635 which were inspected nationwide in 2012. Before applying indicator, it measured the condition of recycling such as accessibility of farmland, condition of irrigation and drainage system, land state, and surroundings by field investigation. Then, it calculated composite score in each target area through applying indicators, and verified the indicator by comparing calculated result with the one which was decided from field investigation. Finally, it carried out field investigation, correct and upgrade some problems of the standard of score calculation that was found during applying previously set evaluation indicator to target area, and established the final standard of calculation for evaluation indicator.