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        검색결과 605

        421.
        2017.11 서비스 종료(열람 제한)
        국제연합식량농업기구(FAO)는 2050년, 전 세계 인구 수가 약 90억에 이를 것으로 예측하였다. 이와 같은 인구 증가는 여러 식량 및 환경 문제들을 야기할 수 있다. 또한 식량 및 에너지원 생산과정에서 자연계에 과잉으로 배출되는 질소, 인은 토양 산성화 및 부영양화 등의 환경문제를 유발할 수 있다. 이에 대한 해결책으로 FAO에서는 ‘곤충’을 자원(식・약품, 사료, 비료 등)으로 활용하는 것을 제시하였다. 현재 국내 연구는 곤충의 이용가능성 여부 및 활용기술개발 위주의 연구에 치중되어있어 곤충활용에 따른 환경성 연구는 전무한 실정이다. 따라서 본 연구에서는 국내에서 식용곤충으로 인정받은 곤충 6종 중 갈색거저리와 벼메뚜기를 선정하여 곤충의 활용방안에 따른 환경성 평가를 진행하였다. 갈색거저리는 최근 식량자원으로써 각광받고 있는 종이며 번데기까지 사용할 수 있는 완전변태 곤충이다. 벼메뚜기는 예로부터 식품으로 이용된 친숙한 종이며 대표적인 불완전변태 곤충이다. 본 연구의 목적은 곤충 분류(번데기의 유무)에 따른 활용방안의 환경성을 비교・평가하고 이를 기존 단백질원과 비교하는 것이다. 갈색거저리와 벼메뚜기의 환경성 평가는 질소, 인 흐름분석 및 전과정평가를 사용하였다. 이는 인간이 곤충을 단백질원으로 섭취하였을 경우와 곤충 사료로 키운 가축을 섭취하였을 경우로 나누어 분석하였다. 이를 토대로 물질흐름의 각 단계를 비료, 작물, 곤충, 가축, 사람으로 나누어 유입, 유출되는 질소와 인의 양을 산정하고 이에 따른 질소, 인 이용효율을 산정하였다. 또한 갈색거저리와 벼메뚜기 사육 시 발생하는 온실가스 량을 기존의 단백질원 생산과 비교 하였다.연구 결과 갈색거저리가 기존 단백질원인 한우와 벼메뚜기보다 질소, 인이용효율이 높았으며 온실가스 발생량이 적었다. 또한 갈색거저리는 번데기까지 사료로써 이용이 가능하기 때문에 활용범위가 넓을 것이라 생각한다.
        423.
        2017.08 KCI 등재 서비스 종료(열람 제한)
        The purpose of this study is to present operating directions of school food service center (SFSC) for development of environment-friendly agricultural producers (EFAP) and regional agriculture. Of eight SFSCs being operated in Chungcheongnam- do, this study analyzed situations of three cases, Cheonan, Asan and Hongseong. The analysis on operation situations revealed that all the three cases had positive economic effects on EFAP in the aspect of low commission and fixed supply price for a given period. The survey showed that social and economic changes since participating in the SFSC were largest in Asan. The awareness of the economic effects was largest among the producers in Cheonan.
        424.
        2017.06 KCI 등재 서비스 종료(열람 제한)
        본 시험은 전국의 광역친환경 농업단지 중에서 모범적으로 친환경 농업을 실천하고 있 는 3곳(장흥, 순천, 옥천)의 벼 농가를 대상으로 시기별로 양분 분석을 하였다. 장흥지역 농 가만이 경축자원 순환농업을 실천하고 있는 것으로 관찰되었다. 광역친환경 벼 농업단지의 3~9월 사이의 시기별 토양 pH는 5.5~6.7의 분포를 보였고, EC는 0.4~1.0 dS m-1으로 나타났 다. 시기별 토양 전질소는 순천 농가에서 높았고 칼륨은 옥천 농가에서 낮은 수준을 보였 다. 시기별 토양 암모늄태 질소는 봄철 비료 시용으로 6월 전후에 상승하였고, 장흥 농가에 서 가장 높은 수준을 보이다가 이후 크게 감소하였다. 수량과 수확지수가 가장 높았던 옥 천 농가에서 ha당 연간 조수입이 다른 농가보다 세배 가까이 높은 수준을 보였다. 비교적 많은 비료를 투입한 옥천 농가에서 시기별 양분수지가 높았고, 순천 농가의 ha당 칼륨 수지 는 9월에 약 -60 kg까지 관찰되어 칼륨 결핍에 따른 생산성 저하에 일부 영향을 주었을 것 으로 추정되었다. 시기별 전질소와 인산수지는 장흥 농가에서 가장 낮은 수준을 보였고 벼 낟알의 질소이용효율도 가장 높아서 광역친환경 농업단지의 추천할 만한 사례 농가로 평 가되었다.
        425.
        2017.05 서비스 종료(열람 제한)
        산업활동으로 인한 대량생산, 대량소비, 대량폐기의 사회체계는 자원고갈, 지구온난화 등의 환경문제를 유발시켜 인류의 지속가능성을 위협하고 있다. 이러한 상황에서 자원순환형 사회체계 구축은 다양성, 자립성, 안전성, 순환성을 강조하는 지속가능성의 관점에서 인류의 생존을 위한 필수적인 방향으로 인식되고 있다. 자원순환형 경제 및 산업구조 구축을 위해서는 자원순환기술의 개발을 통한 폐기물의 자원화 실현이 수행되어야 한다. 한편 폐기물 자원화를 위한 재활용기술 역시 공정가동을 위해 사용되는 에너지 및 자원으로 인해 환경오염이 발생되고, 경제적인 측면에서 새로운 자원을 채취하는 것보다 많은 비용을 발생시킬 수 있다. 따라서 재활용재와 신재에 대한 전과정평가 수행을 통해 환경·경제적 가치를 분석하고 재활용 기술의 경쟁력 증진을 위한 개선안을 도출하는 것은 지속가능한 자원순환형 경제 및 산업구조 구축을 위해 매우 중요하다. 본 연구는 LCD, 반도체 등의 생산공정에서 발생하는 공정폐액에서 귀금속(금, 은)을 회수하는 재활용 기술을 대상으로 전과정평가를 수행하여 지구온난화, 자원소모, 산성화, 부영양화, 광화학적산화물생성의 5대 영향 범주에 대해 환경영향을 평가하였다. 공정폐액 1L 처리 시 지구온난화 영향은 5.26E-02 kg CO2 eq., 자원소모 영향은 3.06E-04 kg Sb eq., 산성화 영향은 1.31E-04 kg SO2 eq. 부영양화 영향은 9.70E-05 kg PO43- eq., 광화학적산화물생성 영향은 5.82E-05 kg C2H4 eq.로 도출되었다. 전과정평가 결과를 바탕으로 공정폐액 재활용 기술을 통해 회수되는 재생금의 환경・경제적 가치 분석을 수행하였다. 5대 영향범주에 대해 비용편익 분석기법에 기초하여 사회적 편익을 포함하는 영향범주 별 경제적 원단위를 적용하였다. 공정폐액을 재활용하여 회수되는 재생금 1kg을 기준으로 평가하였을 때 환경・경제적으로 31,481원의 이득을 취할 수 있으며, 공정 1cycle인 300,000L의 공정폐액을 처리할 경우 85.8kg의 재생금이 생산되므로 2,691,651원의 이득을 얻을 수 있다. 공정폐액 재활용 기술에 대한 전체 환경영향 범주에 있어 전기와 KCN으로 인한 기여도가 가장 크므로 에너지 효율을 위한 에너지원 변경 및 신재생에너지 적용 등의 방안 및 KCN을 대체 할 수 있는 물질에 대한 원단위 환경영향 비교가 필요하다. 또한, 금, 은에 대한 환경영향 회피효과가 매우 크고, 경제성 또한 확보되기 때문에 다양한 활용이 가능할 것으로 보인다.
        426.
        2017.05 서비스 종료(열람 제한)
        국제연합식량농업기구(FAO)는 2050년, 전 세계 인구 수가 약 90억에 이를 것으로 예측하였다. 이와 같은 인구 증가는 식량 부족, 물 부족, 기후변화, 자원고갈 등 여러 문제들을 야기할 수 있다. 또한 식량 및 에너지원 생산과정에서 자연계에 과잉으로 배출되는 질소, 인은 토양 산성화 및 부영양화 등의 환경문제를 유발할 수 있다. 이에 대한 해결책으로 FAO에서는 ‘곤충’을 자원으로 활용하는 것을 제시하였다. 이는 곤충을 식・약품, 사료, 비료 등으로 활용하는 것으로 식량 부족문제 및 환경문제 해결을 꾀하는 것이다. 현재 국내 연구는 곤충의 이용가능성 여부 및 활용기술개발 위주의 연구에 치중되어있어 곤충활용에 따른 환경성 연구는 전무한 실정이다. 따라서 본 연구에서는 국내에서 식용곤충으로 인정받은 곤충 6종 중 하나인 벼메뚜기를 선정하여 벼메뚜기의 활용방안에 따른 환경성 평가를 진행하였다. 벼메뚜기는 예로부터 식품으로 이용된 친숙한 종이다. 벼메뚜기의 성분함량을 기존의 식품 및 사료와 비교하였을 때 유사하거나 높기 때문에 단백질원 및 사료로써의 이용가능성은 충분하다. 벼메뚜기의 환경성 평가는 활용방안에 따른 질소, 인 흐름분석 및 온실가스 배출량을 산정하여 진행하였다. 이는 인간이 벼메뚜기를 단백질원으로 섭취하였을 경우와 벼메뚜기 사료로 키운 가축을 섭취하였을 경우로 나누어 분석하였다. 이를 토대로 물질흐름의 각 단계를 비료, 작물, 벼메뚜기, 가축, 사람으로 나누어 유입, 유출되는 질소와 인의 양을 산정하고 이에 따른 질소, 인 이용효율을 산정하였다. 질소와 인의 산정은 환경오염사전예방 측면에서 SCOPE 3(기타 간접 배출)에 속하는 온실가스 배출원을 포함하여 간접손실 항목에 추가하였다. 이는 기존 이용효율성 평가의 시스템 경계를 확장한 것이다. 또한 벼메뚜기 사육 시 발생하는 온실가스 량을 기존의 단백질원 생산과 비교하였다.
        427.
        2017.03 KCI 등재 서비스 종료(열람 제한)
        Environmental Impact Assessment (EIA) is an important policy implemented before starting development projects to estimate and reduce environmental impact. However, the difficulty of quantification on several rating categories has hampered comprehensive analysis. Instead of it, the current EIA just summarizes outcome of investigation. Therefore, EIA fails to definitively ascertain whether the development shold be approved or not. This study aimed at providing the way to comprehensive decision-making by applying Emergy analysis and Emergy indicators to EIA. Production (P), Emergy Yield Ratio (EYR), Environmental Loading Ratio (ELR) and Emergy Sustainability Index (ESI) were selected for indicators. The indicators of range approving the development were set up with comparing before and after development or according to circumstances of which view of average that was classified as region or industry is appropriate to analysis. As a result, the value after development of P should be higher than the value before development. EYR and ESI of the value before development should be higher than region or industry average. On the contrary to these, ELR of the value after development should be lower than region or industry average. To verify applying Emergy indicators to EIA comprehensive analysis, Emergy evaluation was conducted to real case. As a result, applying Emergy analysis could suggest whether the development is appropriate or not. These indices and the result of this research are expected to be applied decision-making on environmental impact for sustainable development.
        428.
        2016.12 KCI 등재 서비스 종료(열람 제한)
        The purpose of this study is to clarify the environmental changes and human activities before and after the fortification of the Seongsan Sanseong Fortress (hereinafter mountain fortress) in Haman through using pollen analysis. For this purpose, samples were taken at the Tr-2 site in the Warm-temperate forest. The results of the analysis are as follow. ① Before and after the fortification of the mountain fortress, the area around it has changed from a broad-leaved forest (The HS-I period) into a deciduous broad-leaved forest (The HS-II period) and finally into a the mixed conifer and deciduous broad-leaved forest (The HS-III period). ② The HS-I period (before the middle of the 6th century, compared to the nationwide pollen zone RIIIa during the Postglacial) was covered with cool-temperate southern forests(including some species of Warm-temperate trees) and was very similar to the current climate environment during the Gaya period before the fortification. ③ The HS-II period (mid to late 6th century, pollen zone RIIIa) was covered with typical cool-temperate southern forests after the fortification and the temperature was slightly lower than the first stage. ④ The HS-III period (7th~8th century/9th century, pollen zone RIIIb) is an era of clear human interference, causing the destruction of forests in earnest and paving an active agricultural life.
        429.
        2016.10 서비스 종료(열람 제한)
        In this study, we tried to review the potential of commercialization of the developed product of aerated concrete and floor mortar used in the construction of residential buildings such as apartment buildings. As a result, it was analyzed that the difference was negligent in terms of the depth of subsidence, though the developed product was good enough in terms of compressive strength and economic efficiency.
        431.
        2016.08 KCI 등재 서비스 종료(열람 제한)
        There are growing interests in environmental friendly cultivation for the matter of health concern. This study analyzes an economic efficiency of strawberry and tomato farming by considering the role of environmentally friendly cultivation. The Database of Rural Development Administration is used for strawberry and tomato farming households. We adopt a Bayesian stochastic frontier model to resolve a small sample property of the data. Empirical finding is that environmentally friendly cultivation improves the revenue of farming but the effect on net profit is not conclusive which calls for future research.
        432.
        2016.08 KCI 등재 서비스 종료(열람 제한)
        The objective of this study is to analyze the DEA efficiency of the environmentfriendly agricultural districts and zones. There are political inefficiency in districts and zones with 45.3% and 85.0%. It mainly results from scale efficiency than pure technical efficiency. There are 10 efficient zones, while 34 decreasing return to scale ones. Meanwhile, districts mostly have increasing return to scale with 97.9%. The results of this study is meaningful to re-construct the project based on the environment-friendly agricultural production.
        433.
        2016.08 KCI 등재 서비스 종료(열람 제한)
        This study aims at analysing the process of introduction and the development of the agri-environment policy of the UK and identifying the implication for the Korean government. The UK introduced the AES policy in order to reduce the negative impact of the farming practice on biodiversity and habitats. The initial process was only possible for the enormous research results on the relationship between the farming and environment. Since the UK launched the ESA scheme in 1987, it has extended the designated areas for four stages. Based on the success of the ESA scheme, it started CSS and other schemes. However, these had a modest success and were integrated into the CSS scheme, which from then on became the main measures of the AES in the UK. The whole process of the UK case tells us that the most important work for the start of the AES in Korea would be the necessity and feasibility of the environment protection measures in Korea which could be identified from academic and scientific research on the impact of agricultural practice on the rural environment in Korea.
        434.
        2016.08 KCI 등재 서비스 종료(열람 제한)
        This study examined the effectiveness of and satisfaction of visitors with the Environmental Improvement Project on national parks’ trail entry areas. A survey was conducted to improve the proposal framework based on the data. Data for the study were obtained from 6400 respondents who used 28 national park offices at 32 national park trail entry areas. The field research was collected in 3200 surveys, divided between pre- and post-implementation of the Environmental Improvement Project. The study variables consisted of socio-demographics, visitors’ perceptions on the environmental improvement of trail entries, effects of the environmental improvement, and visitor satisfaction. Several important results were found. First, the environment of trail entries has a significant impact on the formation of images and user satisfaction of national parks. Second, the influence of the trail entry improvement showed that 71.8% of visitors rated the trail entry as environmentally friendly after the Environmental Improvement Project, compared to 48.5% of visitors rated the trail entry as environmentally friendly before the Environmental Improvement Project. The findings indicated that a top priority of environmental improvement of the trail entries needs to be the installation of convenience facilities such as rest areas, restrooms, and direction boards (pre: 34.5%, post: 32.6%). Third, functionality and the other nine variables were shown to enhance the effect of the environmental improvement of the trail entries at the 1% statistical significance level. Finally, results indicated that the overall satisfaction of the visitors with the park was significantly higher after the environmental improvement (t-value=25.741, p=.000), showing the satisfaction score was higher after the environmental improvement (pre: 3.51, post: 4.12), with a statistically significant difference at the 1 % level. This study helps to understand trail entries, which have influenced the image of the national park and satisfaction. These findings can be utilized to manage and design a national park as a public space.
        435.
        2016.07 KCI 등재 서비스 종료(열람 제한)
        In this study, we analyzed the content and compensation factors of 337 cases of national environmental disputes from five recent years (2000~2014). Causes of damage were noise-vibration in 234 cases (69%), sunlight in 48 cases (14%), air pollution in 19 cases (6%), water pollution in 15 cases (4%), odor in 13 cases (4%), and others factors in 8 cases (3%). Sources of damage were construction in 224 cases (66%), structures in 36 cases (11%), vehicle on road in 31 cases (9%), industry in 18 cases (5%), environmental facility in 11 cases (3%), livestock facility in 6 cases (2%), and other sources in 11 cases (3%). From the results of logistic regression analysis, important factors associated with compensation were found to be damage amount, damage distance, zoning districts, source, and administrative disposition.
        436.
        2016.07 KCI 등재 서비스 종료(열람 제한)
        Algal blooming in 4 major rivers introduces substantial impacts to water front activity. Concentrations of algae are increasing at major points along the Geum River. Ecosystem food webs can be affected by algal blooming because blue-green algae release toxic materials. Even though there have been many studies on blue-green algae, its causality to environmental factors has not been completely determined yet. This study analyzed the exclusive correlation between various hydrometeorological, water quality, and hydrologic variables and the cell number of cyanobacteria to understand causality of blue-green algae in the Geum River. A prewhitening process was introduced to remove the autocorrelation structure and periodicity, which is useful to evaluate the effective relationship between two time series.
        438.
        2015.12 KCI 등재 서비스 종료(열람 제한)
        The purpose of this study is to observe the influence mother's pro-environmental consumption behavior have on the adolescents' environment-friendly attitudes and adolescents' pro-environmental consumption behavior. Also by examining the variable relation, the study scopes out the effectiveness of environmental experience. For the analysis, high school students in Korea were gathered from online and multiple regression analysis, and Baron and Kenny mediation analysis were conducted among a total of 521 surveys. The main findings are as follows: First, mother's pro-environmental consumption behavior were proven to be essential factors that have influence on the adolescents’ environment-friendly attitudes. Second, mother's pro-environmental consumption behavior were proven to be essential factors that have influence on the adolescents’ pro-environmental consumption behavior. Third, mediating effect of adolescents' environment-friendly attitudes was verified in the relationship between mother's and adolescent's pro-environmental consumption behavior. The findings suggest the importance of adolescents' environment-friendly attitudes and improve adolescent's pro-environmental consumption behavior by having practice mother's pro-environmental consumption behavior.
        439.
        2015.12 KCI 등재 서비스 종료(열람 제한)
        This study was conducted to suggest ideal management system for organic materials. As the performing method of the study, surveyed results on understanding of related persons (organic farmer 846, organic materials manufacture 70 and Organic materials Auditors 7) with eco-friendly farming were used. And the opinion on unintentional pollution source contained in organic materials was surveyed additionally. The issues pointed out by organic farmers on product of organic materials were high price (60% to total), poor efficacy (16%), disorder on distribution system (13%) and containing chemicals as a pesticide (10%). And notification system for organic materials was accepted in general (positive and so so 76%) while most interviewees preferred (89%) unification of certification system dominantly. As unintentional contamination source, pollution on imported row material was indicated as major reason, and other causes were confirmed as insertion during manufacturing process, agricultural by-products using as product additive et al. Based on these surveyed results, authors suggest bellows as considerable methods for effective improvement of management system on organic material. First, establish new integrated certification system which contains standard of quality certification and notification system on organic material. Second, for evaluation ofefficacy, apply relative evaluation system of significance such as Duncan’s multiple test instead of existing absolute evaluation system. Third, constitute and operate selection of standard comparison subcommittee in organic Agro-materials committee in RDA.
        440.
        2015.09 KCI 등재 서비스 종료(열람 제한)
        This study aims at providing with the implication of the EU agri-environmental policy which modestly started in 1985 as an optional policy for the Member States and developed as one of main measures for the reformed CAP in 2013. The first AES was the ESA scheme which had a focus on specific areas where were regarded as having a high natural value and assisted farmers who were voluntarily participated in the scheme. Such a small scale measure has developed as a main policy of the CAP from several reforming processes. It is now applying for the entire land of the EU and necessary for every Member State to introduce the AES measures in their rural development plan. With the principle of cross-compliance and the whole farm approach, it is possible to encourage the European farmers to change their ways of farming into low-input farming. This is the best way to achieve sustainable farming and rural development. This analysis on the changing process of the AES provides the Korean government with somewhat logical perspective on the reform of agricultural policy. The most important thing is to recognise that protecting and restorating environmental and biological resource must precede economical utilising the rural resource.