• Korean Journal of Remote Sensing
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• v.33 no.6_2
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• pp.1119-1137
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• 2017

This study assessed the water provisioning and climate mitigation ecosystem services of the urban forest in Seoul and Gyeonggi-do. The ecosystem service assessment is conducted based on natural function, natural function and population, and natural function and the beneficiary of the ecosystem service. Then, the impact of climate change on ecosystem services is analyzed to figure out the sensitivity of the impact on the beneficiary when the natural function of forest destroys under climate change. Gyeonggi-do has higher function-based water provisioning ecosystem service than Seoul. And population-based water provisioning ecosystem service appears to be higher in the densely populated area. On the other hand, beneficiary-based water provisioning ecosystem service by applying both natural water supply function and beneficiary distribution appears different with the result of population-based water provisioning service assessment. In other words, regions with high beneficiary population show higher ecosystem service than those with a low beneficiary population even though they have the same water storage function. In addition, climate change has a negative impact on the water provisioning ecosystem service. Under climate change, water provisioning service is expected to decrease by 26%. For climate mitigation service, regions close to the forest seem to have a low temperature, which indicates their high climate mitigation service. The center of the city with high beneficiary population shows high beneficiary-based ecosystem service. The climate change impacts the forest growth to decrease which affect the beneficiary-based climate mitigation ecosystem service to decrease by 33%. From this study, we conclude that beneficiary-based function and ecosystem service assessment is needed as well as the supply-based classification of forest function suggested by Korea Forest Service. In addition, we suggest that not only supply-based function classification and ecosystem service assessment but also beneficiary-based function classification and ecosystem service assessment is needed for managing the urban forest, which has been destroyed by climate change. This will contribute to revaluing cases where a forest with low natural function but high beneficiary-based ecosystem service, which is not considered under the current forest function-based assessment system. Moreover, this could assist in developing a suitable management plan for the urban forest.

• Information and Communications Magazine
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• v.32 no.3
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• pp.18-28
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• 2015

현재 온라인 동영상 트래픽은 인터넷 전체 트래픽의 60% 이상을 차지하고 있으며, 앞으로는 더욱 증가될 것으로 전망된다. 그동안 인터넷 상에서 온라인 동영상의 생성과 배포에 관한 생태계가 견고히 구축되었고, 유통되는 동영상의 품질이나 압축기술 등은 그 어느 때보다 급속히 발전되어 왔다. 그에 비해 동영상의 활용에 있어서는 대부분의 이용자가 주로 동영상을 찾고 보고 듣는 데 그치고 있다. 그러나 동영상에는 스토리, 등장인물, 배경이 되는 장소, 의미 있는 사물 등과 같은 부가 정보들이 내포되어 있어 이 정보를 적극 활용하면 동영상의 활용 가치를 높일 수 있다. 본 고에서는 동영상의 활용 가치를 높이는 서비스를 제공하는 수단으로서 동영상에 포함된 부가 정보를 획득하고, 모델링하고, 표현하는 기술들에 관해 고찰한다. 더불어 현재의 온라인 동영상 서비스를 살펴보면서 부가정보를 적극 활용하게 될 미래의 동영상 서비스를 가늠하고자 한다.

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2016.10a
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• pp.8-9
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• 2016

• Journal of Wetlands Research
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• v.16 no.2
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• pp.251-259
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• 2014

Recently, wetland and paddy wetland are being highlighted as the international environmental issues. However, research system which can assess paddy wetland is lacking. Thus, the purpose of this study is to assess the value of paddy wetland by applying RAM to paddy wetland. In addition, we would like to use this study as the data to establish assessment method for paddy wetland. 16 sites were selected as research targets based on altitude and soil. As the results of wetland assessment, 16 research target sites had total score of 212~227 and the average of 2.17~2.50. It was similar to those of Lacustrine Wetlands, Palustrine Wetland and Riverine Wetland which were sites in previous studies. The value could be recognized as the wetland. However, there was no difference in assessment results based on altitude and soil. It was found that all conservation values were the same. The factor the most closely affecting conservation value was the area. However, there was limitation to apply existing wetland assessment system to paddy wetland. In order to assess paddy wetland, factors such as rice farming methods, topography, vegetation, growth environment and biodiversity should be added. It was thought to supplement wetland assessment system through various further studies.

• Journal of Wetlands Research
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• v.16 no.3
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• pp.315-325
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• 2014

Valuation of ecosystem services through organic carbon distribution and cycling in the Quercus mongolica forest at Mt. Worak national park were investigated from May 2012 through April 2013. The amount of carbon allocated to above and below ground biomass was 81.94 and 20.53 ton C/ha. Amount of organic carbon in litter layer was 6.49 ton C/ha. Amount of organic carbon within 50 soil depth was 141.23 ton C $ha^{-1}$ $50cm-depth^{-1}$. Total amount of organic carbon in this Quercus mongolica forest was estimated to 250.19 ton C $ha^{-1}$. The estimated amount of won in this Quercus mongolica forest in terms of total organic carbon was about 5.27 million won $ha^{-1}$. The amount of carbon evolved through soil respiration was 7.31 ton C $ha^{-1}yr^{-1}$. The amount of carbon evolved through microbial respiration and root respiration was 3.58 and 3.73 ton C $ha^{-1}yr^{-1}$, respectively. The amount of organic carbon absorbed from the atmosphere of this Quercus mongolica forest was 1.61 ton C $ha^{-1}yr^{-1}$ when estimated from the difference between net primary production and microbial respiration. This amount will come to about 33,000 won $ha^{-1}yr^{-1}$ in Korean currency.

• Journal of Wetlands Research
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• v.17 no.4
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• pp.332-338
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• 2015

Valuation of ecosystem services through organic carbon distribution and cycling in the Pinus densiflora forest at Mt. Worak National Park were investigated from January 2013 through December 2013. The amount of carbon allocated to above and below ground biomass was 32.17 and 8.04 ton C $ha^{-1}$. Amount of organic carbon in litter layer was 5.55 ton C $ha^{-1}$. Amount of organic carbon within 50cm soil depth was 58.62 ton C $ha^{-1}$ 50cm-$depth^{-1}$. Total amount of organic carbon in this Pinus densiflora forest was estimated to 104.38 ton C $ha^{-1}$. The estimated amount of won in this Pinus densiflora forest in terms of total organic carbon was about 10.44 million won $ha^{-1}$. The amount of carbon evolved through soil respiration was 4.44 ton C $ha^{-1}yr^{-1}$. The amount of carbon evolved through microbial respiration and root respiration was 2.18 and 2.27 ton C $ha^{-1}yr^{-1}$, respectively. The amount of organic carbon absorbed from the atmosphere of this Pinus densiflora forest was 0.44 ton C $ha^{-1}yr^{-1}$ when estimated from the difference between net primary production and microbial respiration. This amount will come to about 44,000 won $ha^{-1}$ in Korean currency.

• Korean Journal of Environment and Ecology
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• v.36 no.3
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• pp.318-326
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• 2022

The Convention on Biodiversity (CBD) recommends that 17% of the land be designated as a protected area to counter global environmental problems. Korea also realized a need to designate protected areas according to the international level and explain the significance of designating protected areas. Accordingly, studies on ecosystem services are required. In Korea, the protected areas are designated as national parks, provincial parks, and county parks by hierarchy under the Natural Parks Act. However, as priority was on political and administrative aspects, research on ecosystem service value evaluation and habitat management were concentrated in national parks, and provincial and county parks were relatively neglected. Therefore, more studies on provincial and county parks are necessary. In this study, habitat quality for Gajisan Provincial Park, where there were few studies on habitat management and ecosystem service valuation, was evaluated using the InVEST Habitat Quality model among the InVEST models. The analysis results were compared with 16 mountainous national parks. The results showed that the habitat quality value of Gajisan Provincial Park was 0.83, higher than that of the surrounding areas. The analysis of habitat quality in three districts showed 0,84 for the Tongdosa and Naewonsa districts and 0.83 for the Seoknamsa district. By use district, the nature conservation district, the natural environment district, the cultural heritage district, and the park village district had the highest habitat quality value in that order. Compared with the existing habitat quality analysis results of national parks, Gajisan Provincial Park showed naturalness at the level of Mudeungsan National Park. These results can be used as objective data for establishing policies and management plans to preserve biodiversity and promote ecosystem services in provincial parks.

• Journal of Environmental Impact Assessment
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• v.28 no.1
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• pp.71-81
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• 2019

This study aims to provide basic data for the decision-making process in selecting sites for wetland restoration projects. To this end, the current list of demaged wetlands was identified based on the findings from the nationwide monitoring project in 2016 targeted at wetlands in inland areas. Then, to determine the necessity of restoration for these demaged sites, the cause of demage was investigated, and their conservation value was examined from an ecological and legal perspective. The 2016 monitoring project identified a total of 20 demaged wetlands, of which one site was deemed to have high conservation value through analysis of its ecological and legal values and on-site reviews. The results of this study are expected to support policymakers' decision-making in selecting wetlands for restoration projects since it identifies priority sites among demaged wetlands that require immediate restoration efforts. It should also be pointed out that wetlands in South Korea cannot benefit from legal protection despite their high conservation value unless they have a designated status as protected areas.

• Journal of the Korean Institute of Landscape Architecture
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• v.44 no.4
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• pp.1-13
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• 2016

To detail a picture of the economic value of Miscanthus landscape conservation in terms of cultural services aspects of Ecosystem Services, Sunghaksan(Mt.), Hwawangsan(Mt.) and Jaeyaksan(Mt.), which are known for their Miscanthus colonies, were chosen as survey sites. After examining the willingness to pay for the value of Miscanthus landscape conservation by targeting of visitors each study area, the economic value of Miscanthus landscape conservation per capita aspects was evaluated using Contingent Valuation Methods(CVM) from the collected willingness to pay for economic value of Miscanthus scenery by site. After using the target Chi-square test to analyze the differences among each site, the correlation between specific variables was investigated. Willingness to pay for the Miscanthus landscape conservation was found to increase as the respondents' income became higher. The more environmental conservation efforts were being made in their daily life, the higher willingness to pay was for Miscanthus landscape conservation. Likewise in other studies, the higher the bid was, the less willingness to pay was. The per capita assessment of the Miscanthus landscape value of the logit models in the dual estimated using the factor extracted with each of the injected variable bounds was estimated for Seunghaksan (\38,277), Hwawangsan(\38,648), and Jaeyaksan(\48,891). The average of the three sites was estimated to be \38,679. Assessment of the economic value of these Miscanthus landscape sites saw high willingness to pay by visitors when compared to the current market price inflation, such as watching movies or amusement park admission, which could mean that visitors recognize the value of ecosystem services from nature in evaluating the Miscanthus landscape.

• 한국벤처창업학회:학술대회논문집
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• 2023.04a
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• pp.149-156
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• 2023

임팩트 투자(impact investment)는 사회적 가치와 재무적 이익을 동시에 추구하는 소셜벤처에 투자하는 행위이다. 그동안 국내에서는 정부 주도로 임팩트 투자 생태계가 조성되고 성장하였다. 선순환 투자 생태계를 위해서는 소셜벤처가 가지는 사회혁신의 가치와 임팩트 투자의 연계가 중요하다. 사회적 형평과 시장의 효율의 두 가치 중심으로 수요와 공급이 맞는 임팩트 투자에 대한 이해가 필수적이다. 특히, 임팩트 투자 지원정책과 투자가 공공에서 민간으로 확대되는 시점에서 임팩트 투자의사 결정요인을 규명하는 차별화된 접근이 필요하다. 이에 본 연구는 임팩트 투자의사 결정요인을 분석하고 우선순위를 도출하고자 하였다. 먼저 문헌분석을 통해 투자 결정에 영향을 미치는 요인을 확인하고 임팩트 투자 심사역을 대상으로 자문·설문조사를 수행한 뒤, 델파이 기법을 적용하여 주요 투자의사 결정요인을 도출하였다. 다음으로는 임팩트 투자 심사역 10명을 대상으로 AHP분석을 실시하여 투자의사 결정요인의 우선순위를 분석하였다. 분석 결과, 상위요인의 중요도는 시장-창업가(팀)-제품·서비스-재무의 순서로 확인되었으며, 세부요인의 중요도는 '시장의 경쟁강도 및 진입장벽-시장성장 및 확장 가능성-팀의 전문성 및 역량-신시장 창출 가능성-영업활동 및 고객관리-창업가의 신뢰성 및 진정성의 순서로 나타났다. 이러한 연구 결과는 임팩트 투자에 대한 지원정책과 투자가 공공에서 민간으로 확대되는 시점에서 고유한 투자의사 결정요인을 규명하여 투자를 희망하는 이해관계자들에게 기초 자료를 제시했다는 데 의의가 있다.