• 환경영향평가
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• 제18권5호
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• pp.301-312
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• 2009

Recently, habitat fragmentation and shrinkage has occurred because of increased road construction. As a measures mitigating the adverse effect such as eco-island by road construction, Korea has been installed eco-corridors since 1995. Using the Analytic Hierarchy Process (AHP), this study analyzed the importance of assessment items and the criteria to determine which areas require eco-corridors the most. First, related literature reviews, preliminary surveys, and expert interviews were carried out to develop assessment items and criteria for constructing the hierarchy. Second, experts were surveyed in order to determine the relative importance of the assessment items by applying the AHP. As a result, it found that the restoration of the ecological network was the most important assessment item, followed by wild animal resources in the Level 3. In the Level 4, the eighteen items were ranked in the order of their relative weight and it was found that the 'Baekdudaegan Mountain Range (0.189)' was the highest ranked item. Therefore, this approach can be applied to effective selection of the priority areas in planning eco-corridors in the national scale.

• 환경영향평가
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• 제20권1호
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• pp.13-24
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• 2011

This study was carried out to analyze ecological characteristics and select target species for effective restoration plans of wildlife corridors at Galmachi of Sungnam City. The actual vegetation in study area was physiognomically mixed with deciduous broad leaved forests dominated by oaks and artificially planted species. And it is a secondary forest formatted by sprout originated stand and being on early succession stage as a young stand. So study site was regarded as not suitable for the habitats for wildlife. The number of mammal species at study site was total 22 species, but most of these species were found as not so many in individual numbers. The individual number of hare was approximately 4 to 8, while the raccoon dog and water deer with 2 to 3 and 1 to 2, respectively. As such, it was estimated as a low population density due to discontinuation of ecosystem and the man-made impacts. In this study, raccoon dog and water deer were selected as the target species because of their migration patterns and ecological value in local ecosystem. It was suggested to establish a wildlife corridors of an over-bridge type at the peak area of Galmachi, known to be the mostly-used migratory route for 2 target species.

• 환경영향평가
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• 제19권1호
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• pp.91-97
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• 2010

The systematic data management system in the area of river flow analysis has not yet constructed, even though the need is evident due to the complicated process of tremendous input/output data in the modeling study and the importance of visualization of spatial flow variation. The objectives of this study are to suggest the method for analysis of changing river sections affecting ecological habitat characteristics. The effects of ecological habitat characteristics are assessed with respect to changing river sections. A GIS special analysis is created representing in the past section of Nonsan-river using historical data. Topographic surfaces are subject to erosional and depositional forces that a specific set of surface characteristics unique to elevation data. GIS spatial analyst is used to generate surface grids from historical point data. Using the GIS spatial analyst can be constructed sections for anywhere of river. The change of depth between 1979 and 1988, the left bank elevations of a river are increased about 1.5m. But the right bank elevations of a river are decreased about 2.3m caused by erosion. In addition, the change of spatial between 1988 and 2002, the regions of a river from upper stream to midstream are decreased the elevation. But the downstream regions are increased the elevation. These changes are analyzed in GIS program to assess methods for affecting ecological habitat.

• 환경영향평가
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• 제25권4호
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• pp.280-295
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• 2016

최근 육류 소비에 의한 환경 영향이 증가하였고, 쇠고기 소비를 줄이는 것은 지속가능한 식량 공급을 위한 대안의 하나이다. 우리나라에서는 지난 50여 년간 쇠고기 소비는 1961년 대비 2009년 약 13배 증가하였고, 쇠고기 소비에 의한 생태발자국(경작지발자국, 초지발자국, 탄소발자국의 합)도 동기간 약 12배 증가하였다. 특히 수입 쇠고기 소비 증가가 1970년 대비 2009년 약 346배, 수입 쇠고기 소비로 인한 생태발자국은 369배로 현저히 증가하였다. 2023년 한국인이 쇠고기 소비를 절반으로 줄이는 경우 쇠고기 소비에 의한 생태발자국은 기준전망치(BAU, Business As Usual) 대비 40~65% 감소하였다. 또한 시나리오별 저감된 생태발자국으로 지탱가능한 인구수를 추정하면, 한국인과 세계평균 소비 수준에 따라 약 57~156만 명의 식량(농작물, 육류, 어류), 화석 에너지, 산림 및 건조환경 부문의 소비를 지탱할 수 있고, 342~683만 명의 농작물 소비를 지탱할 수 있을 것으로 기대된다.

• 환경영향평가
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• 제23권5호
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• pp.364-378
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• 2014

과거 50여 년간 한국의 생태발자국(Ecological Footprint, EF)은 가파르게 증가해 왔으며, 이에 따라 오버슈트(Overshoot) 역시 증가해 왔다. 오버슈트를 야기하는 중요한 원인에는 인구 증가와 일인당 자원 사용 강도 증가가 있다. 본 연구에서는 이들 원인 가운데 어떤 변수가 지난 50여 년간 한국의 EF에 더 큰 영향을 미쳤는지에 대해 알아보았다. 소비 부문들 가운데, 에너지 소비에 따른 탄소발자국(Carbon Footprint, CF), 단백질 섭취에 따른 초지발자국(Grazing Land Footprint)과 어장 발자국(Fishing Grounds)이 EF 증가에 크게 영향을 주었다. 지난 50여 년간의 추세가 앞으로도 유지된다면, 2060년에는 일인당 EF 값이 2009년 현재의 2배에 달할 것으로 보이며, 2031년 이후 인구가 감소함에도 불구하고 1인당 EF 값의 증가에 따른 영향으로 EF는 2059년까지 증가할 것으로 보인다. 그러므로 향후 개개인의 소비 패턴과 행동 변화를 유도하는 것으로 환경관리 방향을 전환해갈 필요가 있을 것이다.

• 환경영향평가
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• 제2권1호
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• pp.39-55
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• 1993

The importance of urban and regional natural park increases because of the needs for preserving the natural resources and providing with natural recreation space in nature. This planning of natural park management should be established based on the research of the various natural resources in the park. But for the lack of effective data synthesizing methods and concepts, only some restricted factors for zoning plan are considered even though GIS computer system for large complex simulation is used. Therefore, in this study three ecological zoning models such as Basic Factor Model (BFM), Visual Landscape Model (VLM) and Comprehensive Ecological Model (CEM) are proposed and applied to Byounsan Peninsula Nature Park(BPNP) for comparison with the current natural park zoning. The BFM has three components -elevation, slope and vegetation. The VLM has applied with six components -elevation, slope, vegetation, road type, and the visual distance. Finally the CEM's modelling factors have included all of BFM, VLM components are added with the land use type, nature and historic resource factors. The zoning concept of BPNP was based on "Minimization" focused on the specific factors. But introduced modelling concept is "Optimization" based on the total ecological environment. So the result of the modelling has larger area for preservation and development zoning compared with the current zoning whose characteristics are ambiguous which allows the environmental destruction. The future study issues will be the determination of the weighting factor, component reconsideration based on the ground truth data and the agriculture residential area zoning.

• 환경영향평가
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• 제21권1호
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• pp.41-51
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• 2012

To select 10 representatives for the ecotourism networks around the areas bordering national rivers in Korea, the spatial ranges for ecotourism have been established, the ecotourism potential analyzed, and the ecotourism resources information collected by the Regional Environmental Offices and the Korea National Park Service has undergone reviews, amendments, supplements, and verification processes through familiarization tour previews, and the following main results have been derived. First, the spatial ranges of the eco-tourism networks have been set as the watershed areas that include areas around the four major rivers and the rivers. Second, the areas with high potential value for ecotourism were selected through the analysis of ecotourism potential. Since EGIS was used for the analysis, it was inevitable that insufficient amount of localized information was reflected, and the use of the results as reference for the potential would be feasible. Third, it was possible, by reviewing, amending and complementing the results of ecological resource information collected by the Regional Environmental Offices and the Korea National Park Service, to select 50 representative ecological resources around the national rivers. The selected resources were considered for the adjacency, attractiveness of ecological resources, and uniqueness of the national rivers, and they were derived by screening expert advice, official opinion, and geographical analysis information. Fourth, 10 representative ecotourism networks based on watershed areas were selected, and suitable themes were given based on the resource characteristics. Fifth, the appropriateness for ecotourism has been confirmed, with the familiarization tour previews and survey results, preservation of the future ecotourism resources, and the establishment of the foundation as the basis. In the future, the remaining 9 ecotourism networks would also need to undergo a verification process such as familiarization tours. It is deemed that, through future ecotourism contests, if the programs that select locally-pioneered tourism programs resulting from the capacities of local entities and residents, then it would be more effective in discovering resources that are more localized and of higher regional value.

• 환경영향평가
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• 제32권6호
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• pp.516-532
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• 2023

이 연구는 사천 선상지 일대에서 2021년 9월부터 2023년 6월까지 진행된 현장연구를 토대로, 발견한 129개의 새미에 대한 분포를 민족과학과 적소이론을 통해 분석한 결과이다. 연구자는 사천 선상지 일대를 전통적인 수리시설과 근대적인 수리시설이 모두 이용되고 있는 관개의 적소로 보고, 지속가능 패러다임에 따라 생태환경에 대한 공익적인 가치가 주목되는 전통수리시설인 '새미'의 문화생태적 경쟁력을 밝힘으로써, 새미의 지속가능한 보전과 활용 방안을 모색하는 데 기여하고자 했다. 연구 결과, 새미는 지속가능한 발전이라는 시대의 방향성을 고려하였을 때 문화생태학적 질 측면에서 경쟁력 있는 수리시설로 확인되었다. 지속가능한 농업 차원에서 환경친화적 농업기술을 전통수리시설에 접목해 나간다면, 생산성과 공익성, 그리고 지속가능성에 시너지가 발휘될 수 있을 것으로 기대한다.

• 환경영향평가
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• 제11권1호
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• pp.25-36
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• 2002

The purpose of this study is to assess the environmental carrying capacity of Chongju City for the environmental management and the urban growth management. The urban environmental carrying capacity assessment of the city by the index of ecological footprint(EF), shows that the ecosystem of the city has been overloaded and most of the deficiencies has come from outside of the city. The EF index, the area of land per capita required for production and consumption in the city, was 1.731 ha per capita in 1989 and 1.901 ha per capita in 1999. On the other side, the ecologically productive land is 0.0175 ha per capita. It means that every citizen owes 1.88 ha per capita to the ecosystem in 1999. The land consumption of the city has increased by 0.1705 ha per capita during the last 10 years. The capacity of infrastructure and the service supply estimated by the Onishi model does not exceed the demand of the city in 1999. But the rapidly increasing population and fast urban growth need the expansion of the capacity. The water supply capacity of the city appears to be sufficient in 1999, but the water supply demand will increase in the future. The capacity of sewage treatment facilities seems to be sufficient, but the higher level of sewage treatment facilities should be adopted for the improvement of water quality as the generation of sewage will increase and its characteristics will also make the wastewater treatment difficult. Due to the decrease of solid waste generated, the land fill capacity for solid waste disposal is not insufficient at present, but the capacity will be saturated in the near future. Therefore, the scientific management system of solid wastes should be introduced. The air quality of the city meets both the national air quality standard and WHO recommendation standard, but the strong regulation and control of automobile emission gas such as CO, $CO_2$, NOx and HC is required for clean air.

• 환경생물
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• 제22권1호
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• pp.1-11
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• 2004

Ecological methods were reviewed through reports such as environmental impact assessment and damage effect of fishery in the Korean watershed. Survey items in marine ecological field were included: phytoplankton, zooplankton, benthic animal, algae, adult fish, egg and juvenile of fish. A standardization of survey method in the field of community ecology was suggested to consider the convenience, Sequency in Use of device, accuracy of data collected from that. It is necessary that spatial data should be sufficiently acquired toy statistical analysis of biodiversity and spatial comparison. Quantitative sampling method must be inevitably adopted based nature of biota and geographical type of the survey area. The same sampling method can make the data compared spatially but can't be applicable in all area. Standardizing survey method should be by no means under certain restriction of study and would become different according to survey environments. The first thing is minutely understanding about ecological character of biota inhabiting in certain area, and then determining survey method.