• 제목/요약/키워드: Green Practice

검색결과 255건 처리시간 0.028초

농업분야 온실가스 배출량 산정의 불확도 추정 및 평가 (Estimation of Uncertainty on Greenhouse Gas Emission in the Agriculture Sector)

  • 배연정;배승종;서일환;서교;이정재;김건엽
    • 농촌계획
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    • 제19권4호
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    • pp.125-135
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    • 2013
  • Analysis and evaluation of uncertainty is adopting the advanced methodology among the methods for greenhouse gas emission assessment that was defined in GPS2000 (Good practice guideline 2000) and GPG-LULUCF (GPG Land Use, Land-Use Change and Forestry). In 2006 IPCC guideline, two approaches are suggested to explain the uncertainty for each section with a national net emission and a prediction value on uncertainty as follows; 1) Spread sheet calculation based on the error propagation algorithm that was simplified with some assumptions, and 2) Monte carlo simulation that can be utilized in general purposes. There are few researches on the agricultural field including greenhouse gas emission that is generated from livestock and cultivation lands due to lack of information for statistic data, emission coefficient, and complicated emission formula. The main objective of this study is to suggest an evaluation method for the uncertainty of greenhouse gas emission in agricultural field by means of intercomparison of the prediction value on uncertainties which were estimated by spread sheet calculation and monte carlo simulation. A statistic analysis for probability density function for uncertainty of emission rate was carried out by targeting livestock intestinal fermentation, excrements treatment, and direct/indirect emission from agricultural lands and rice cultivation. It was suggested to minimize uncertainty by means of extraction of emission coefficient according to each targeting section.

Microbial composition and diversity of the long term application of organic material in upland soil

  • An, Nan-Hee;Park, Jong-Ho;Han, Eun-Jung;Hong, Sung-Jun;Kim, Yong-Ki;Jee, Hyeong-Jin
    • 한국유기농업학회지
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    • 제19권spc호
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    • pp.190-193
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    • 2011
  • Organic and chemical fertilizer amendments are an important agricultural practice for increasing crop yields. In order to maintain the soil sustainability, it is important to monitor the effects of fertilizer applications on the shift of soil microorganism, which control the cycling of many nutrients in the soils. Here, culture-dependent and culture-independent approaches were used to analyze the soil microorganism and community structure under six fertilization treatments, including green manure, rice straw compost, rapeseed cake, pig mature compost, NPK +pig mature compost, NPK and control. Both organic and chemical fertilizers caused a shift of the cultural microorganism CFUs after treatments. Bacterial CFUs of the organic fertilization treatments were significantly higher than that of chemical fertilization treatments. The DGGE profiles of the bacterial communities of the samples showed that the green manure treatment was a distinct difference in bacterial community, with a greater complexity of the band pattern than other treatments. Cluster analyses based on the DGGE profile showed that rice straw compost and pig mature compost had a similar banding pattern and clustered together firstly. Rapeseed cake, NPK, NPK +pig manure compost and control clustered together in other sub-cluster and clearly distinguished from green manure.

Effect of Green Manure Biomass and Rice Yield on Continuous Cropping by different Seeding rate of Hairy vetch in Paddy

  • Jeon, W.T.;Seong, K.Y.;Oh, I.S.;Jeong, K.H.;Lee, J.K.;Choi, B.S.;Kim, C.G.;Lee, Y.H.;Kang, U.G.
    • 한국유기농업학회지
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    • 제19권spc호
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    • pp.174-177
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    • 2011
  • Green manure crops play an important role in organic farming. Field experiment was conducted at paddy soil (fine loamy, mixed, nonacid, mesic family of Aeric Fluvaquentic Endoquepts) in 2008/2009 to 2009/2010 at the National Institute of Crop Science (NICS), RDA, Suwon, Gyeonggi province, Korea. This experiment was carried out to evaluate the biomass of hairy vetch (Vicia villosa) and growth of rice (Oryza sativa) by different seeding rates. Seeding rates of hairy vetch consisted of 30, 60, and 90 kg $ha^{-1}$ by broadcasting before rice harvesting. The biomass and nitrogen production of hairy vetch were not significantly different between 60 kg $ha^{-1}$ and 90 kg $ha^{-1}$ of seedinq rates. Also, rice yield was not significantly different between seeding rate 60 kg $ha^{-1}$ of hairy vetch and conventional practice for two years. Therefore, we suggested that seeding rate of hairy vetch should be reduced by continuous cropping and incorporation of hairy vetch under rice-based cropping system.

기후변화대응 물관리를 위한 자연기반해법의 개념적 체계와 정책적 과제 (Nature-based Solutions for Climate-Adaptive Water Management: Conceptual Approaches and Challenges)

  • 박유진;오재일
    • 한국물환경학회지
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    • 제38권4호
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    • pp.177-189
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    • 2022
  • Nature-based Solutions (NbS) are defined as practical and technical approaches to restoring functioning ecosystems and biodiversity as a means to address socio-environmental challenges and provide human-nature co-benefits. This study reviews NbS-related literature to identify its key characteristics, techniques, and challenges for its application in climate-adaptive water management. The review finds that NbS has been commonly used as an umbrella term incorporating a wide range of existing ecosystem-based approaches such as low-impact development (LID), best management practices (BMP), forest landscape restoration (FLR), and blue-green infrastructure (BGI), rather than being a uniquely-situated practice. Its technical form and operation can vary significantly depending on the spatial scale (small versus large), objective (mitigation, adaptation, naturalization), and problem (water supply, quality, flooding). Commonly cited techniques include green spaces, permeable surfaces, wetlands, infiltration ponds, and riparian buffers in urban sites, while afforestation, floodplain restoration, and reed beds appear common in non- and less-urban settings. There is a greater lack of operational clarity for large-scale NbS than for small-scale NbS in urban areas. NbS can be a powerful tool that enables an integrated and coordinated action embracing not only water management, but also microclimate moderation, ecosystem conservation, and emissions reduction. This study points out the importance of developing decision-making guidelines that can inform practitioners of the selection, operation, and evaluation of NbS for specific sites. The absence of this framework is one of the obstacles to mainstreaming NbS for water management. More case studies are needed for empirical assessment of NbS.

거칠기길이를 이용한 바람통로 네트워크 구축 (Building Wind Corridor Network Using Roughness Length)

  • 안승만;이규석;이채연
    • 한국조경학회지
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    • 제43권3호
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    • pp.101-113
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    • 2015
  • 본 연구는 바람통로의 세밀도와 편이성을 향상시켜 도시 녹지계획 활용도를 높이는 것을 목적으로 한다. 이를 위해 유체역학적 거칠기 특성을 나타내는 거칠기길이($z_0$)로부터 바람통로 네트워크 추출기법을 제안하였다. 지적필지 단위로 산출된 $z_0$에 IDW, Spline, Kriging 내삽기법을 적용해 표면이 연속적인 수치거칠기길이모델(DZoM)을 생성한 후 수계망 추출 기법을 적용해 바람통로 네트워크를 산출하였다. 내삽기법 적용 결과들을 비교하여 가장 적합한 내삽 기법을 정하고 산출된 바람통로와 토지피복 및 지표온도의 공간적 관계를 분석하였다. 연구결과 DZoM 산출기법 중 Kriging 기법의 적용성이 IDW 및 Spline 기법보다 우수한 것으로 나타났다. Kriging 기법을 이용하여 선형 추출한 바람통로 네트워크(Type B)와 Landsat-7 ETM+에서 산출한 여름철과 겨울철 야간 지표온도 분포를 비교한 결과는 공간적 일치도가 높았다. 주목할 부분으로 산출된 바람통로의 흐름이 도시의 야간 열 부하들을 완화하는 것으로 보인다. 추출된 바람통로 네트워크 사상들(features)에 대한 엄밀한 평가와 개선이 수행된다면 녹지계획 실무에 효과적으로 활용될 수 있을 것이다. 이를 위해서는 (1) 거칠기길이 개선, (2) 녹지계획 목적에 맞는 바람통로의 해석 및 편집, (3) 분절된 바람통로 네트워크 연결, (4) 관련 자료의 상세한 구축 및 무결성 확보 등이 선행되어야 할 것이다. 제안된 바람통로 네트워크의 녹지계획 적용을 위해 향후 연구범위를 수도권으로 확장할 계획이다.

약물검사에서 관리시료의 농축을 이용한 보고 가능 범위의 설정에 대한 연구 (A Study of Reportable Range Setting through Concentrated Control Sample)

  • 장상우;김남용;최호성;박용원;윤근영
    • 대한임상검사과학회지
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    • 제36권1호
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    • pp.13-18
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    • 2004
  • This study was designed to establish working range for reoportable range in own laboratory in order to cover the upper and lower limits of the range in test method. We experimented ten times during 10 days for setting of reportable range with between run for method evaluation. It is generally assumed that the analytical method produces a linear response and that the test results between those upper and lower limits are then reportable. CLIA recommends that laboratories verify the reportable range of all moderate and high complexity tests. The Clinical Laboratory Improvement Amendments(CLIA) and Laboratory Accreditation Program of the Korean Society for Laboratory Medicine states reportable range is only required for "modified" moderately complex tests. Linearity requirements have been eliminated from the CLIA regulations and from others accreditation agencies, many inspectors continue to feel that linearity studies are a part of good lab practice and should be encouraged. It is important to assess the useful reportable range of a laboratory method, i.e., the lowest and highest test results that are reliable and can be reported. Manufacturers make claims for the reportable range of their methods by stating the upper and lower limits of the range. Instrument manufacturers state an operating range and a reportable range. The commercial linearity material can be used to verify this range, if it adequately covers the stated linear interval. CLIA requirements for quality control, must demonstrate that, prior to reporting patient test results, it can obtain the performance specifications for accuracy, precision, and reportable range of patient test results, comparable to those established by the manufacturer. If applicable, the laboratory must also verify the reportable range of patient test results. The reportable range of patient test results is the range of test result values over which the laboratory can establish or verify the accuracy of the instrument, kit or test system measurement response. We need to define the usable reportable range of the method so that the experiments can be properly planned and valid data can be collected. The reportable range is usually defined as the range where the analytical response of the method is linear with respect to the concentration of the analyte being measured. In conclusion, experimental results on reportable range using concentrated control sample and zero calibrators covering from highest to lowest range were salicylate $8.8{\mu}g/dL$, phenytoin $0.67{\mu}g/dL$, phenobarbital $1.53{\mu}g/dL$, primidone $0.16{\mu}g/dL$, theophylline $0.2{\mu}g/dL$, vancomycine $1.3{\mu}g/dL$, valproic acid $3.2{\mu}g/dL$, digitoxin 0.17ng/dL, carbamazepine $0.36{\mu}g/dL$ and acetaminophen $0.7{\mu}g/dL$ at minimum level and salicylate $969.9{\mu}g/dL$, phenytoin $38.1{\mu}g/dL$, phenobarbital $60.4{\mu}g/dL$, primidone $24.57{\mu}g/dL$, theophylline $39.2{\mu}g/dL$, vancomycine $83.65{\mu}g/dL$, valproic acid $147.96{\mu}g/dL$, digitoxin 5.04ng/dL, carbamazepine $19.76{\mu}g/dL$, acetaminophen $300.92{\mu}g/dL$ at maximum level.

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지속가능한 건축의 계보들 (An Interpretation of the Perspectives of Sustainable Architecture)

  • 류전희
    • KIEAE Journal
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    • 제8권5호
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    • pp.23-34
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    • 2008
  • This paper reviews the relationships between diverse ecological design strategies and competing conceptions of ecological approach in place making. It focuses conceptual trends of what we categorize a building "green" and outlines a social constructive perspective on the development of sustainable architecture. This study classifies seven logics of ecological design-eco-technical, eco-aesthetical, eco-social, eco-medical, eco-renewable, eco-cultural, eco-central - which have their roots in competing philosophies of environmentalism. In my analysis of the logics concerning sustainable architecture, the adapted and incorporated technology from high-tech to low-tech levels is a key issue. These points lead us to propose a way that each logic configures the technological approaches and alternative visions of sustainable places. This paper discusses the implications of the competent nature of plural ecological design perspectives for architectural education, practice, and researches.

An Interdisciplinary Approach to Industry-Based Complex Problem-Solving: Sustainable Policy Solutions to the Malaysian Water Crisis

  • Richards, Cameron;Padfield, Rory
    • Asian Journal of Innovation and Policy
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    • 제5권1호
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    • pp.55-77
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    • 2016
  • This paper focuses on how an integrated or systemic approach is needed to both investigate and connect different kinds of interdisciplinary inquiry and knowledge within and beyond universities to encourage more productive collaboration with the other three ‘macro stakeholders’ - government, business, and the wider community. In this way universities can and should provide a greater leadership role in sustainability, innovation and policy studies. Such a framework is needed to also help to change the view of many that academics should just play a supporting role of providing specialised technical expertise only to the other macro stakeholders. The interdisciplinary and collaborative framework developed here is applied to the on-going water crisis in Malaysia - an exemplary complex problem-solving basis for seeking sustainable policy solutions to diverse challenges. As further discussed, this was applied also in practice to a multi-stakeholder seminar on addressing the difficult policy challenges of the Malaysian water industry and sector.

치석의 주사전자현미경 관찰 및 세균동정에 관한 연구 (A study of dental calculus scanning electron microscopic by observation bacteria identification)

  • 장계원
    • 한국치위생학회지
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    • 제7권2호
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    • pp.189-196
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    • 2007
  • A study of the J health college dept of dental hygiene practice vistant a total of 35 supragingival calculus and subgingival calculus picking SEM observation and bacteria identification of the result are followings. 1. As observed by dental calculus SEM, the surface roughness appeared as peaks, valleys, and pits. 2. About bacteteria morphology blood agar plate small green zone partial hemolysis colony streptococcus observation 3. Isolated colony gram stain gram are positive display 4. Supragingival calculus at Lactococcus lactis spp. Leuconostoc spp. Streptococcus mitis, Aerococcus viridans bacteria 1, 3, 3, 16 species detection 5. Subgingival calculus at Aerococcus viridans, Leuconostoc spp. bacteria 5, 1 species detection.

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국제환경경영 표준화와 환경라벨링의 동향 (International Standardization Analysis for Environmental Management and Labelling)

  • 조재립
    • 품질경영학회지
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    • 제23권4호
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    • pp.180-189
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    • 1995
  • Today, as globalization continues and international trading blocks are formed, world markets are intensely competitive and abound in product variety, volume, complexity and environmental management. Specifically, green consumer's needs and expectations are changing and diversifying, resulting in a changed global environment for industry. Due to these changes, domestic companies are striving to achieve the Environmental Management System (ISO 14000) certification. This is considered a basis step in meeting the guiding principle and practice of ISO/TC 207/SC 3 resolution. In this paper, we will present three type(I, II, III) of Environmental Labelling programs to build a model for environmental management system by analysing practitioner and stakeholder. After companies establish an ISO 9000 quality system these companies should focus on improve toward their own Environmental Labelling program and continue to build ISO 14000.

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