• 환경영향평가
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• 제33권3호
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• pp.116-130
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• 2024

역사적으로 인류는 풍부한 자원과 식수를 제공할 수 있는 수변 공간에 정착하였고, 산업화가 진행되며 도시의 수변 공간은 농업 및 공업 용수의 제공, 교통 수단, 문물의 교역, 산업의 발달 등 도시 발전에 중요한 역할을 담당하였다. 산업 구조의 변화에 따라 지난 수십년간 도시의 수변 공간은 산업과 항만 위주의 기능에서 공공공간의 기능으로 전환되고 있으며, 도시재생의 관점에서 전세계적으로 지속가능한 수변공간 개발에 대한 연구와 설계가 활성화되고 있다. 하지만 수변 공간 인근 지역은 해수면 상승 및 폭우 등 기후변화 인한 자연 재해의 직접적인 영향을 받는 지리적 취약성을 지니고 있기 때문에 시민들의 안전과 공공성 확보를 위한 체계적인 관리 계획 수립이 필수적이다. 미국 뉴욕시는 1990년대부터 도시 단위의 수변공간 관리계획을 수립하고 수변공간의 공공성과 안전성, 형평성을 확보해나가고 있다. 반면, 국내에서는 도시 단위의 수변관리계획에 대한 연구가 부족한 실정이다. 이에 본 연구에서는 뉴욕시 수변종합계획이 발전되어 온 과정과 주요 정책들에 대해 고찰함으로써 국내 수변공간계획에 대한 시사점과 정책적 개선방안을 모색하고자 하였다.

• 한국환경과학회지
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• 제12권5호
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• pp.529-539
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• 2003

We developed a numerical model that considered the influences on the thermal environment of vegetation, water surfaces and buildings to predict micro climatic changes in a few $\textrm{km}^2$ scales; and applied this model to the Mino residential development region in Osaka Prefecture by using a nested technique. The calculated temperatures and winds in the residential development region reasonably agreed with the observed ones. We then investigated the influences on the thermal environment of the construction of a dam, the change of the green coverage rate. The results obtained from the numerical simulations were qualitatively reasonable.

• 한국환경복원기술학회지
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• 제23권5호
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• pp.29-43
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• 2020

Thermal environment of city is getting worse due to severe urban heat island caused by climate change and urbanization. The cooling effect of street tree is regarded as a effective way to ameliorate the urban heat environment. The effect is largely made up of shadow formation and transpiration. This study aims to identify how the transpiration affects the discomfort index by analyzing comprehensive impact of the transpiration on the air temperature and relative humidity. The changes in the amount of transpiration, air temperature, and relative humidity were estimated for Seogyo-dong area which has a lot of floating population in Seoul, at 2 p.m. in dry day in July and August. On average, the transpiration of the street tree decreased the temperature 0.3℃ and increased the relative humidity 2.6% in an hour. As a result of these changes in temperature and humidity, the discomfort index rose mostly(0.036 on average). It was always get rise especially on the day when the discomfort index was above 80(0.05 on average). However, compared with the significant change in temperature and humidity, the variation of the discomfort index itself was very slight(up to 0.107). Therefore, the effect of transpiration by the street trees might not be effective in the planning to improve the thermal environment(especially on the day when the discomfort index is high). It is necessary to select the species of trees and planting location considering the cooling effect of shade formation synthetically.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2008년도 정기 학술대회
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• pp.538-543
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• 2008

Urban development and industrialization cause many problems on urban environment such as climate changes, natural disasters and a decreasing number of species. Problems on urban environment are the main factor of that lower the quality of life and obstruct continual development. As a result, eco space becomes the important part of a urban planning. This research, building plan U-Eco city which is establishing with the clean environment and high technology for solve the development thoughtless for the city environment problem and ecological problem. We suggest U-Eco space system which accreted with Ubiquitous technology to three physical divisions, which are lithosphere (land), hydrosphere (water), and aerosphere (air), that interact with the whole biosphere by forming the system. It has composed with U-Green belt that corresponds to lithosphere, U-Blue belt that is applicable to hydrosphere, and U-White belt that comes under aerosphere.

• 한국기후변화학회지
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• 제6권4호
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• pp.291-302
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• 2015

Vulnerability due to climate change depends on the concentration of carbon dioxide emissions over several upcoming decades. The objective of this study is to estimate the concentration of greenhouse gases and air pollutants in 2100, while also accounting for expected socio-economic changes in Korea. First, we intend to prepare scenarios for possible socioeconomic changes in Korea: business as usual (BAU), high growth and low growth. Secondly, we aim to predict services demands in residential?commercial sector, transportation sector, industrial sector for each scenarios. Finally, the emissions of LLGHG and SLCP will be estimated on the basis of the predicted service demands. The study results project that in Korea, LLGHG emissions will be approximately $660Mt\;CO_2\;eq$. and SLCP emissions will be approximately 3.81 Mt, -including black carbon (BC) by 2100. The transportation and industrial sectors are the major source for LLGHG emissions, and the residential and commercial sector serve as the SLCP source. Later, additional studies on the cost and benefit of mitigation should be carried out by comparing the reduced use of materials that cause climate change as a result of reduction policies and the socioeconomic cost.

• 한국환경복원기술학회지
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• 제25권5호
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• pp.15-27
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• 2022

Climate change is considered a severe global problem closely related to carbon storage. However, recent urbanization and land-use changes reduce carbon stocks in terrestrial ecosystems. Recently, the role of protected areas has been emphasized as a countermeasure to the climate change, and protected areas allow the area to continue to serve as a carbon sink due to legal restrictions. This study attempted to expand the scope of these protected areas to an evaluation-based environmental spatial information theme map. In this study, the area of each grade was compared, and the distribution of land cover for each grade was analyzed using the Ecological and Nature Map, Environmental Conservation Value Assessment Map and Urban Ecological Map of Sejong Special Self-Governing City. Based on this, the average carbon storage for each grade was derived using the InVEST Carbon model. As a result of the analysis, the high-grade area of the environmental spatial information generally showed a wide area of the natural area represented by the forest area, and accordingly, the carbon storage amount was evaluated to be high. However, there are differences in the purpose of production, evaluation items, and evaluation methods between each environmental spatial information, there are differences in area, land cover, and carbon storage. Through this study, environmental spatial information based on the evaluation map can be used for land use management in the carbon aspect, and it is expected that a management plan for each grade suitable for the characteristics of each environmental spatial information is required.

• 한국농공학회논문집
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• 제58권6호
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• pp.93-100
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• 2016

This study conducted a quantitative assessment on the environmental flows associated with climate change in the Gosam Reservoir, Korea. The application of RCP 8.5 climate change scenario has found that the peak value of High Flow Pulses has increased by 36.0 % on average compared to historical data (2001 ~ 2010), which is likely to cause disadvantage on flood control and management but the increase in peak value is expected to make a positive impact on resolving the issue of green algal blooms, promoting vegetation in surrounding areas and encouraging spawning and providing habitats for native species by releasing a larger amount of landslides as well as organic matters than the past. However, the decreasing pattern of the peak value of High Flow Pulses is quite apparent with the trend of delay on the occurrence time of peak value, necessitating a long-term impact analysis. The peak value of Large Floods shows a clear sign of decrease against climate change scenario, which is expected to lead to changes in fish species caused by degraded quality of water and decreasing habitats. A quicker occurrence of Small Floods is also expected to make an impact on the growth cycle of aquatic plants, and the reduction in occurrence frequency of Extreme Low Flows is to contribute to increasing the population of and raising the survival rate of native fish, greatly improving the aquatic ecosystem. The results of this study are expected to be useful to establish the water environment and ecological system in adapting or responding to climate change.

• Spatial Information Research
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• 제19권6호
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• pp.11-18
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• 2011

도시공간은 온실가스배출의 주원인지로 온실가스 저감을 위해서는 도시적 차원의 대책이 무엇보다 필요하다. 본 연구는 도시공간을 조성하는데 있어서 활용할 수 있는 이산화탄소 배출량 산정 모델을 개발하는 것을 목표로 하고 있다. 이를 위해, 첫째로 물리적 규모, 이용현황, 활동강도와 관련된 도시공간 계획요소를 이론고찰을 통해 선정하였다. 둘째, 전력, 도시가스, 지역난방, 석유, 상수도 사용량 자료에 기반한 이산화탄소 배출량을 산정하였다. 셋째, 서울시를 사례연구대상지로 선정하고 도시공간 계획요소와 이산화탄소 배출량 간의 관계분석을 통해 도시공간의 이산화탄소 배출량 산정 모델을 개발하였다. 기후변화에 대응하기 위한 다양한 노력들이 도시공간에서 시도되고 있으나, 도시 전체의 탄소배출량과 같은 총량적 관점의 한계가 있었다. 그러나 본 연구의 도시공간 계획요소에 따른 이산화탄소 배출량 산정 모델은 탄소저감을 위한 도시차원에서의 해결방안으로 활용할 수 있는 국지적 범위에서의 보다 구체적인 모델을 제시할 수 있다는 점에서 기존 연구와의 차별된다.

• 한국환경복원기술학회지
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• 제15권5호
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• pp.155-163
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• 2012

This study was carried out to monitor reproductive responses of great tits in 17 urban forests in Daegu metropolitan city. The reproductive perspectives of great tits were surveyed by using 106 artificial bird nests, of which five or seven nests were set up in every urban forest. A ratio of artificial nests used by great tits for their reproduction was 27.4%. It was showing that forests, where the reproductive response was higher, was located at the edge of the city, or was known as having a good vegetation structure in the urban area. The laying date of a great tit was a little earlier in forests in the middle of the city. It might be dependent on the density of artificial land uses including a residential area and an industrial complex, which are able to increase an urban micro-temperature. Otherwise, natural forests or forest patches nearby natural forests located at the edge of the city were showing that the laying date of great tits was relatively later than the oneee in the forest in the middle of the city. There was a big difference of reproduction perspectives of great tit between the 1st and 2nd reproduction. In the 1st reproduction, a clutch size was larger, while an egg volume was so low. Otherwise, the clutch size was shown so smaller in the 2nd reproduction than in the 1st reproduction, while the egg volume was larger in the 2nd reproduction. It might be due to the survival strategy of a great tit to prepare the winter season for a juvenile. Many variables, regarding to the problem of climate changes, have been linked to the environment of urban area and the bird habitats. Finally, Monitoring a bird reproduction is a valuable work for managing an urban forest as well as for conserving a natural forest.

• 한국측량학회지
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• 제31권2호
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• pp.143-150
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• 2013

최근 기후 온난화, 오존층 파괴, 열대림의 감소, 사막화 등의 환경문제가 이미 한 국가 문제를 넘어 범세계적인 지구환경문제로 대두되면서 이를 해결하기 위한 국제적인 관심과 노력이 다양하게 진행되어 왔다. 본 연구에서는 원격탐사 기법을 이용하여 도시의 녹지증가를 정량적으로 산출하고, 온도 추출을 통해 도시의 온도변화를 파악하고자 하였다. 2002년 5월과 2009년 5월 Landsat TM영상을 이용하여 연구대상지의 녹지 면적변화와 열변화를 분석하였으며, 도심의 지표면 온도를 추출하기 위해 Landsat TM 열적외선 영역센서인 Band 6의 분광밝기정도를 이용하여 표면온도분포를 산출하였다. 연구결과, 도심지 녹지의 면적이 $2.97km^2$ 증가하였으며, 도시의 지표온도가 약$0.6^{\circ}C{\sim}0.8^{\circ}C$ 낮아졌음을 제시하였다. 향후 원격탐사 및 실측자료를 바탕으로 도심 온도변화에 대한 추가적인 연구가 이루어진다면 도시환경문제 해결에 크게 기여할 것이다.