• 한국환경복원기술학회지
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• 제18권2호
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• pp.33-44
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• 2015

This study was performed to propose the site selection plan for the restoration of the target Narrow-mouth Frog(Kaloula borealis) habitat, and has developed the AHP model to select the optimal site for narrow-mouth frog habitat restoration on the basis of the narrow-mouth frog Habitat Suitability Index (HSI) items (factors and variables). The assessment areas were established by the narrow-mouth frog HSI factors such as space, feed, cover, water(breeding), threatening factors and others, and the sub-assessment items by each assessment area were established based on the narrow-mouth frog HSI variables. The weighting values of the assessment areas and items were calculated by the developed AHP method. The weighting values of the 5 assessment areas were arranged in order as cover(0.283), water(breeding)(0.276), feed(0.230), space(0.147), and threatening factor(0.064). The final weighting values of the 14 assessment items were arranged in order of height as low-rise grassland(0.190), soil quality(0.178), and stones and between the stones(0.105). The scoring criteria according to the assessment items and factors were marked and applied by equal intervals considering the criteria by HSI items of the narrow-mouth frog and finally the scoring criteria diagram has been proposed for the optimal site selection of the narrow-mouth frog habitat restoration.

• 대한안전경영과학회지
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• 제17권3호
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• pp.15-22
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• 2015

The risk assessment carried out on the construction site at the beginning of the implementation depends on the subjective judgment of risk of general contractor and subcontractors, whose opinion about frequency and intensity of risk is different. In this paper, research the awareness of general contractors and subcontractors about process of risk assessment at the construction site and its effectiveness. Researching of the main factors "frequency", "intensity" which determines the degree of risk gives the opportunity to find an option for improving the effective implementation of risk assessment.

• 환경영향평가
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• 제3권1호
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• pp.9-30
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• 1994

Environmental Impact Assessment System, ever since its enactment in Korea fourteen years ago, has been steadily improved by introduction and implementation of new concepts and methodologies which include Environmental Impact Statement(EIS) preparation technique, selection of environmental factors, and the like. However, current guideline requires that every EIS, regardless of the specifics of the project type or characteristics of the site, must evaluate and study for all twenty-two environmental factors as set forth in the regulation. The situation causes many undesirable problems like; lack of site specific evaluation in most EISs, over-sized EIS drafts, consuming too much time and costs for EIS preparation, and so on. The objectives of this study are: - To establish a set of criteria to classify the types of the projects in terms of features of the project content and the characteristics of the site area. - To establish a guideline for selecting major environmental factors of the project type criteria, and - To provide basic materials for the preparation of complets draft EIS of the Amendment of Environmental Impact Assessment Act.

• 한국환경복원기술학회지
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• 제21권4호
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• pp.75-86
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• 2018

This research was thereby made to study and analysis ecological, landscape, and stability qualities of roadside cut Slopes in expressways and national highways that went through revegetation works. Also, evaluation items and framework for integrated assessment of plant structure and restored state for the maintenance were suggested. Following is the summary of the result. firstly, for stabilization of introduced native plant species on roadside cut slops, assessment on the post-project environmental management through long-term monitoring and maintenance works must be made. It signifies a form of authentic recovery and restoration by the native plants. second, current evaluation framework on the test beds is well managed with clear evaluation standards and table while its method of assessing the post management with only test bed results lacks conformity with this study site. Newly developed evaluation framework on the post construction sites is estimated to be used as assessment standards on any roadside construction sites. Third, after site investigation distinction was observed among different revegetating construction types in the long-term perspective. Due to the different duration time of vegetation state between seed-spray measures(degraded in time) and layer-spray measure(maintained), the use of coarse straw-mat mulching work or Coir net was suggested in long term maintenance of cut slopes. forth, segmentation of post environmental assessment is organized into three large categories of "ecological", "stabile", and "landscape" qualities regarding post restoration quality and stability of slope through native plants with which categories marks 50, 30, 20 points of rates. fifth, components of the post environmental assessment were segmented in twelve categories driving results from former experimental construction and newly focused items on site. In the future, it is possible to propose a customized assessment method considering the location and location of construction work if the research on the application of post-environment assessment methods for road construction surface recording is conducted systematically.

• 환경영향평가
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• 제4권2호
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• pp.29-37
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• 1995

The national park should be preserved in accordance with the regulation, but the development planning or facilities management planning has not been faithful to the spirits of the regulation. Recently natural environment has been radically changed, and especially damaged by large scale development of Service Facilities Zone. Thus the effective land use planning of the national park is required. Therefore, the purpose of this study is to propose the alternative site for The Second Service Facilities Zone in Mt. Kyeryong National Park using the GIS, and to compare the alternative site with the existing development site. Site selection was based on Rules of Combination which covers topographic analysis, viewshod analysis, distance analysis from hot spring well, land use analysis, and forest stand analysis.

• 자원환경지질
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• 제23권4호
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• pp.425-452
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• 1990

지하수 환경의 오염 가능성에 대한 정량적인 전산분석을 실시하기 이전 단계로 경험적인 평가방법을 이용하여 조사대상 지역 지하수환경의 오염 가능성을 광범위한 수리지질 및 수리분산 실험을 실시하여 평가하였다. 그 결과 최상위 대수층은 포화 비고결 퇴적물과 풍화대 및 수리적으로 연결성이 양호한 상부 파쇄암으로 구성되어 있다. 최상위 대수층의 대표적인 수리전도도는 $2.88{\times}10^{-6}m/s$, 저유계수(비산출률)은 0.09, 지하수의 주흐름 경로에서 다시 안 유속은 0.011m/d, 비반응 오염 용질의 공극유속은 0.12m/d, 지하수의 동수구배는 4.6%이다. 취득한 제반 수리지질 자료를 이용하여 조사대상 지역의 자하수환경 오염 가능성을 경험적인 평가법으로 평가한 바, 1) DRASTIC 분석 결과에 의하면, 본 지역은 "지하수 오염 가능성에 취약성이 희박하거나, 오염에 민감하지 않은 지역"으로 나타났으며, 2) Legrand 수치법 분석법을 이용하여 입지 적합성과 오염 가능성을 평가한 바, 본 지역은 "B" grade에 해당하는 "오염 가능성이 없기 때문에 대체적으로 입지로 적합하나, 부분적으로 적합지 않을 수도 있는 지역"으로 분류되었고, 3) 폐기물-토양 입지 연관성 행열 평가법에 의하면, 본 부지는 8군에 속하는 것으로 평가되었다.

• 한국화재소방학회논문지
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• 제15권4호
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• pp.24-33
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• 2001

현재 전세계적으로 공장내(on-site)뿐만 아니라 공장외지역(off-site)에 대한 사고영향평가의 필요성이 대두되고 있으며, 공장외지역에 대한 영향평가 수행후 이에 대한 적절한 비상계획을 제출하도록 하고 있고, 국내에서도 종합적위험관리체계(IRMS : Integrated Risk Management System)를 PSM이나 SMS와 더불어 시행 준비중에 있다. 그러나 공장외지역에 대한 위험영향 평가시 가장 먼저 결정되어야 할 가상시나리오에 대한 기준이 체계적으로 마련되어 있지 않아 사용자나 분석자에 따라 평가결과가 다양하게 나오며, 또한 공정에서 발생할 수 있는 사고의 이상원을 정확하게 파악하지 못한다는 단점이 있다. 따라서 본 연구에서는 이러한 가상시나리오를 결정하는데 필요한 공정요소를 분석한 후, 분석결과에 따라 발생 가능하고, 먼저 고려되어야 할 시나리오를 산정할 수 있도록 전략을 제시하고자 한다. 분석된 공정요소들은 요소에 따른 가중치를 부여하여 위험등급을 결정한 후 등급에 따른 위험영향 평가를 수행하도록 한다. 분석의 결과는 가상시나리오의 신뢰성을 향상시킴으로써 위험영향평가가 과대평가되는 것을 방지하고, 공정의 설계나 비상계획의 수립시 효과적이고 적절한 대책마련을 유도할 수 있다.

• 방사성폐기물학회지
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• 제19권1호
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• pp.113-121
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• 2021

A safety assessment of radioactive waste repositories is a mandatory requirement process because there are possible radiological hazards owing to radionuclide migration from radioactive waste to the biosphere. For a reliable safety assessment, it is important to establish a parameter database that reflects the site-specific characteristics of the disposal facility and repository site. From this perspective, solubility, a major geochemical parameter, has been chosen as an important parameter for modeling the migration behavior of radionuclides. The solubilities were derived for Am, Ni, Tc, and U, which were major radionuclides in this study, and on-site groundwater data reflecting the operational conditions of the Gyeongju low and intermediate level radioactive waste (LILW) repository were applied to reflect the site-specific characteristics. The radiation dose was derived by applying the solubility and radionuclide inventory data to the RESRAD-OFFSITE code, and sensitivity analysis of the dose according to the solubility variation was performed. As a result, owing to the low amount of radionuclide inventory, the dose variation was insignificant. The derived solubility can be used as the main input data for the safety assessment of the Gyeongju LILW repository in the future.

• 한국조경학회지
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• 제33권4호
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• pp.108-118
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• 2005

While the recent lift of restrictions in greenbelt areas is expected to generate a number of development plans, there are efforts to create various development plans into spatial plans that consider the natural and ecological conditions of development sites. However, these development plans consider Degree of Green Naturality or Degree of Ecology only when designating areas for conservation within development sites. It is true that they don't fully reflect the value of green areas and wetlands as habitats and natural resources. Therefore, this study built an conservation value assessment model that is applicable to sites where development is planned in Korea by reviewing prior case examples md studies and applied the developed model to a case study area. The site where the conservation value assessment model was applied to is an area around Yongsan-ri and Suha-ri, Doam-myon, Pyeongchang-gun, Gangwon province where quality natural resources are located in and wend the site. This is a site for the development of Alpensia Resort where a resort including facilities for the Winter Olympics is planned to be introduced. In order to assess the conservation value of the site for Alpensia Resort, a total of eight items including area, distribution of communities, habitation of species with conservation value, functions of habitats, connectivity of habitats, vegetation layers of forests, age of forests, and ratio of non-native plants were studied through literature review and field surveys. The assessment was made by dividing the site into 95 habitats that are perceived by aerial photographs and each habitat unit was assessed on the eight items in a 3-point scale. Each unit habitat assessed in a 3-point scale was segmented into primary, secondary or tertiary areas based on the conservation value. Habitats assessed as primary were designated as priority (absolute) conservation areas and those assessed as secondary and tertiary were set as secondary conservation areas and tertiary conservation areas, respectively. As a result, each area represented 26.9%, 20% and 3% of total site area. Based on this result, habitat management plans were developed to conserve primary conservation areas, improve secondary conservation areas and restore tertiary conservation areas. In addition, a development plan was developed to create habitats in areas where new habitats are requested in order to build an eco-network in the site and a plan to create eco-corridors was proposed. In developing a land use plan for the site, a development plan that considers conservation areas first should be set up based on the outcome of conservation value assessment. This can be linked to the development of an environment-friendly land use plan as well as easing the establishment of a green area and eco-network. This study will facilitate the implementation of the 'conservation before development' principle, which can prevent reckless development, by assessing conservation value in setting up development plans.

• Environmental Engineering Research
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• 제7권2호
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• pp.59-66
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• 2002