• Journal of Environmental Impact Assessment
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• v.31 no.6
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• pp.359-368
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• 2022

It is essential to increase the implementation rate in order to increase the effectiveness of mitigation measures that can mitigate the negative impact of development projects. In the case of Environmental Impact Assessment (EIA),research on the implementation evaluation of development projects is insufficient, even though the effectiveness of mitigation measures has been steadily raised. Therefore, this study evaluated the implementation rate of the mitigation measures and identified the cause of the difference in the implementation rate for each mitigation measures in order to understand the current status of the ecological mitigation measures. The implementation rate of urban and road development projects mitigation measures was 56.0% and 64.4%, respectively. the implementation rate of 'Monitoring' mitigation measures was the highest in all development project. But, 'Habitat creation' and 'Accident prevention measures' were low. In addition, it was found that the implementation rate of the mitigation measures were high when the contents of the mitigation measure described in the report were specific. Through this study, it was found that in order to increase the implementation rate of the EIA ecological environment animal mitigation measures, it is necessary to reflect the environmental and geographical characteristics of the target site in detail. Furthermore, it is judged that this study can be used as a basic basis for enhancing the effectiveness of the EIA system introduced to mitigate the negative impact on the environment.

• Journal of the Korean Institute of Landscape Architecture
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• v.42 no.1
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• pp.50-63
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• 2014

Eco-tourism has been recognized as a form of sustainable development that simultaneously satisfies the need for environmental preservation and the activation of local economies. Although some research findings relating to its positive environmental and social effects have been published, there is still controversy regarding its pros and cons in terms of its actual economic benefits, and little research about how they can be increased. Thus, the following research analyzes how the tour activities, attitudes and satisfaction of 314 actual visitors was related with their consumption behaviors, by surveying tourists to Suncheon Bay, a highly popular destination with a large number of visitors. The results are as follows. First, if the tourists were involved in a link-up tour, had prior eco-tourism experience, or had researched information on SunCheon bay eco-tourism before their visit, these were all positively correlated with consumption behaviors, and increased the amount of money they spent. In particular, among tour spending activities, accommodation cost is shown to be highly correlated with tour activities. Second, Free Independent Tourist(FIT) tended to show more positive tour attitudes than package tourists, spending more on accommodation and experience programs. The visitors to SunCheon Bay showed strong environmental attitudes, followed by social and cultural attitudes, and economic attitudes, in that order, and tourists with positive attitudes had a high rate of participation in experience programs. In addition, program participants showed a willingness to donate, and high satisfaction. Therefore, the following thesis proposes that Free Independent Tourist(FIT) should be induced to increase their contribution to the local eco-tourism economy, and highlights the need to develop various experience programs, aggressive advertisements and educational activities.

• Journal of the Speleological Society of Korea
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• v.46 no.47
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• pp.49-58
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• 1996

동굴 안전진단의 목적은 동굴의 생태환경보전, 그리고 동굴 내부시설들에 대한 안전진단 확인에 있음은 재언을 요하지 않는다. 천곡동굴의 경우는 한 마디로 말한다면 동굴 내부의 생태환경이 동굴 외부로부터 영향을 많이 받고 있는 동굴이라고 하겠다. 그것은 첫째 동굴의 입구 공간이 너무 쉽기 때문이다. 둘째 지표면과 동굴과의 지작 두께가 비교적 얕게 나타나고 있기 때문이다. 셋째로 동굴 길이에 비해 동굴 공간이 넓은 동굴이므로 다른 동굴보다도 붕락, 파괴가 용이하다고 볼 수 있다. 요컨대 천곡동굴은 그 동굴을 배태하고 있는 지층과 지질구조가 매우 불안정하고 동굴의 성장과 파괴가 다른 동굴보다도 빨리 진전되고 있는 동굴이라고 본다. 따라서 천곡동굴은 계속적인 환경보전과 동굴 관리대책을 강구해야 할 동굴이라고 판단된다.

• Journal of Distribution Science
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• v.10 no.1
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• pp.43-52
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• 2012

With the slowdown in environmental issues and the change of environmental consciousness, ecotourism is being discussed in various social fields. Ecotourism is being popularized for environmental protection, and now it is becoming a mainstream product from one of mass tourism. Ecotourism's emphasis on sustainable development in the tourism destination's society, economy, and environment, through ecotourism study and education, enable people to understand the core value of the ecological environment. 2011 was nominated as "the Year of World Forest" by the UN. In the recent years, forests are becoming increasingly important with their own values and functions in environment, economy, society, and culture. In particular, the global environmental issues caused by climate change are becoming an international agenda. Forests are the only effective solution for the carbon dioxide that causes global warming. Moreover, forests constitute a major part of ecotourism, and are now most used by ecotourists. For example, Korea, wherein 60% of the land is forest, attracts ecotourists. With the increasing interests in environment, the number of tourists visiting the ecosystem forest, which is highly valued for its conservation, is increasing significantly every year and is receiving considerable attention from the government. However, poor facilities in the forest ecotourism sites and improper market strategies are the reasons for the poor running of these sites. Furthermore, tourists' environmental awareness affects ecology environmental pollution or the optimization of forest ecotourism. In order to verify the relationships among tourist attractiveness, environmental consciousness, charm degrees of the attractions, and attitudes after tours, we established some scales based on existing research achievement. Then, using these scales, the researcher completed the questionnaire survey. From December 20, 2010 to February 20, 2011, after conducting surveys for 12 weeks, we finally obtained 582 valid questionnaires, from a total of 700 questionnaires, that could be used in statistical analysis. First, for the method of research and analysis, the researcher initially applied the Cronbach's (Alpha) for verifying the reliability, and subsequently applied the Exploratory factor analysis for verifying the validity. Second, in order to analyze the demographics, the researcher makes use of the Frequency analysis for the AMOS, measurement model, structural equation model computing, and also utilizes construct validity, convergent validity, discriminant validity, and nomological validity. Third, for the analysis of the ecotourists' environmental consciousness, impacts on tourist attractiveness, charm degrees of the attractions, and attitudes after the tour, the researcher uses AMOS 19, with the path analysis and equation of structure. After the research, researchers found that high awareness of natural protection lead to high tourist motivation and satisfaction and more positive attitude after the tour. Moreover, this research shows the psychological and behavioral reactions of the ecotourists to the ecotourist development. Accordingly, environmental consciousness does not affect the tourist attractiveness that has been interpreted as significant. Furthermore, people should focus on the change of natural protection consciousness and psychological reaction of ecotourists while ensuring the sustainable development of ecotourists and developing some ecotourist programs.

• Journal of the Korean Society for Marine Environment & Energy
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• v.17 no.2
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• pp.153-165
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• 2014

Carbon dioxide capture and storage (CCS) technology is recognizing one of method responding the climate change with reduction of carbon dioxide in atmosphere. In Korea, due to its geological characteristics, sub-seabed geological $CO_2$ storage is regarded as more practical approach than on-land storage under the goal of its deployment. However, concerns on potential $CO_2$ leakage and relevant acidification issue in the marine environment can be an important subject in recently increasing sub-seabed geological $CO_2$ storage sites. In the present study effect data from literatures were collected in order to conduct an effect assessment of elevated $CO_2$ levels in marine environments using a species sensitivity distribution (SSD) various marine organisms such as microbe, crustacean, echinoderm, mollusc and fish. Results from literatures using domestic species were compared to those from foreign literatures to evaluate the reliability of the effect levels of each biological group and end-point. Ecological effect guidelines through estimating level of pH variation (${\delta}pH$) to adversely affect 5 and 50% of tested organisms, HC5 and HC50, were determined using SSD of marine organisms exposed to the $CO_2$-induced acidification. Estimated HC5 as ${\delta}pH$ of 0.137 can be used as only interim quality guideline possibly with adequate assessment factor. In the future, the current interim guideline as HC5 of ${\delta}pH$ in this study will look forward to compensate with supplement of ecotoxicological data reflecting various trophic levels and indigenous species.

• Proceedings of the Korea Water Resources Association Conference
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• 2017.05a
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• pp.259-259
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• 2017

국내 하천에는 하천을 가로지르는 보나 낙차공과 같은 횡단구조물이 약 5만여개에 달하고 있다. 이러한 횡단구조물은 작업의 용이성 및 높은 강도로 인해 오랜 시간 콘크리트 소재로 사용되어 왔다. 기존 콘크리트 소재의 공법은 설치되어 있는 한 세굴 방지에 좋은 효과를 발휘한다는 장점이 있지만 포설된 공법은 시간이 지남에 따라 마모되거나 소실되는 문제가 발생되며, 최종적으로 하천횡단구조물의 안전성 및 심미성에도 영향을 미치게 된다. 이와 더불어 최근 기후변화로 인해 강우량의 증대 및 집중호우 등의 돌변하는 하천환경변화에 대한 적용 가능한 기술이 미비한 실정이다. 이러한 문제와 더불어 환경에 대한 관심이 높아짐에 따라 자연친화적 하천 및 생태복원 하천에 대한 하천 수질 및 생태학적 건강성에 대한 연구의 관심이 높아지고 있다. 최근 연구결과에 따르면 콘크리트 소재를 활용하여 횡단구조물을 설치할 경우, 콘크리트 소재의 문제점으로 제기되는 납, 크롬 등과 같은 중금속 용출과 석회석으로부터 유출되는 강염기성 물질로 인한 하천의 수질악화와 수생 생물이 독성환경에 노출되어 다양한 환경 생태학적 문제를 발생시킬 수 있다고 보고되어 있다. 본 연구에서는 콘크리트 소재의 대안으로 무 저독성 소재인 식물성 폴리우레탄을 이용하여 연구를 수행하였다. 기초 조사를 통해 콘크리트 소재의 대안으로 사용가능성을 확인하기 위하여 식물성 폴리우레탄의 물리적 강도를 확인하였으며, 환경에 미치는 영향을 파악하기 위하여 대한 생태학적 건강성을 확인하였다. 품질 특성은 바인딩강도, 내구성, 압축강도, 휨강도, 투수계수 등을 확인하였으며, 생태학적 건강성을 확인하기 위하여 양서 파충류의 독성 실험, 어류 독성평가, 부착조류에 대한 실험을 수행하였다. 이러한 결과를 바탕으로 시범지역인 대청천 일부 구간에 대하여 계절별 물리/화학/생물(식생, 어류, 저서동물)에 대한 모니터링을 수행하였다. 또한 홍수 전 후의 하상변동을 통해 개발기술의 안전성을 확인하였다.

• Proceedings of the Korea Water Resources Association Conference
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• 2021.06a
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• pp.10-10
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• 2021

하천은 인간뿐만 아니라 다양한 생물이 서식하는 장소로 하천생태계 보전은 수많은 생물들에게 있어 중요한 요소이다. 1970년대의 국내 하천은 대부분 자연하천의 모습을 경제 성장과 더불어 도시화, 공업화 등으로 용수 수요가 급속히 증가함에 따라 기능 위주의 하천관리가 이루어졌으며, 이로 인해 하천유황의 장기적인 변화가 나타났다. 변화가 발생한 하천은 본래의 모습인 자연 하천으로 완벽하게 복원될 수 없다는 한계점이 있으나, 자연과 인간이 서로 유익하게 도움을 주는 양방향 관계로 발전한다면 하천의 기능도 유지하고 하천수생생물 보존에도 긍정적인 영향을 미칠 수 있다. 즉, 하천이 갖고 있는 하천공학적 기능을 최대한 유지하면서도 다양한 수생생물의 서식처의 기능도 되살아나게 해야하는 복합적인 목적을 갖고 있다. 하천 수생생물의 서식처 복원을 위해서는 하천생태계에 필요한 환경유량의 정량적인 평가와 확보방안 및 공급방안의 검토가 필요하다. 본 연구에서는 HEC-EFM(Ecosystem Function Model)을 활용하여 하천 수생생물의 서식조건을 고려한 환경유량을 산정하였다. 연구 대상유역은 2013년 김천부항댐이 준공된 감천유역을 연구대상유역으로 선정하였으며, 댐 건설에 따른 환경유량의 변화와 기후변화를 고려한 가까운 미래의 수문환경 변화 및 이에 따른 환경유량과 하천생태계 서식처 변화를 살펴보고자 하였다.

• Journal of the Korea Concrete Institute
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• v.26 no.4
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• pp.465-474
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• 2014

This is a comparative study that shows the overall environmental impacts from concrete structures when different compressive strength of concrete applied to structural systems having the same reference flow with different durability. A total of 24 MPa, 40 MPa and 60 MPa cases is analyzed to define the characteristic using end-point perspective LCA methodology including the stages of production, construction, maintenance and disposal. As results, global warming, non-renewable energy and respiratory inorganics problems are the major issues for assessing environmental impacts of concrete products.

• Korean Journal of Environmental Biology
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• v.36 no.4
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• pp.638-646
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• 2018

The purpose of this study was to investigate the long-term habitat morphological alteration resulting from a large dam and weirs in the Tamjin River. To achieve this, we carried out a hydrograph analysis and a substrate size distribution analysis. We also estimated the channel width, bar area and vegetation encroachment using aerial photographs taken before and after the construction of the dam and weirs. The result of the hydrological analysis showed that flooding downstream was greatly reduced with small peaks occurrence after the dam construction. Interestingly, normal hydrographs in the main channel appeared just after tributary conjunction. There was a similar pattern in the substrate size analysis. Despite coarsened substrate just downstream of the dam site, more sand appeared again after introduction of the tributary. However, there was an increase in the bar area downstream of the dam's channels with most bars covered with vegetation. The channel width increased at the upper area of weirs through impoundment, but decreased downstream because of vegetation encroachment. This study indicate that unregulated tributary plays an important role in restoring hydro-physical habitat conditions in mainstream channels below a large dam. However, numerous weirs could be a causal factor to accelerate habitat deterioration in the dam downstream channels.

• Journal of Environmental Impact Assessment
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• v.28 no.3
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• pp.299-311
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• 2019

This study was conducted to investigate and analyze the designation status of the Local Wildlife Conservation Ordinance for the conservation and management of wild fauna and flora, and to elucidate the problems and improvement directions. We compared and analyzed the provisions of the wildlife conservation ordinance of 17 regional local governments. After that,the designation status of Wildlife Protected by City/Do was investigated and the appropriateness was confirmed based on guidelines and laws. The ordinances related to wildlife were enacted in all municipalities, and provisions such as selection criteria, protection measures, and act limitations were commonly reflected. The provisions were varied depending on the characteristics of each local government, including details of flag species, the addition of species in the restoration promotion plan as criteria for selection and provision of protection and restoration of habitats. Since 2006, when the wildlife protected by City/Do designation and protection guidelines have been established, the protected wildlife have increased sharply, and there has been newly designated regional local government within the past one or two years. However, in some local government, protected wildlife has been designated for more than 10 years, and there are many that do not meet the selection criteria. Therefore, more scientific and objective selection criteria and methods should be constructed for the selection of species suitable for the purpose of the Wildlife protected by City/Do.