• Title/Summary/Keyword: Land Use Mitigation

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The Role of Environmental Assessment for Environmental Land Use Planning (환경친화적 토지이용계획 수립을 위한 환경평가의 역할과 특성: 환경평가 검토의견분석을 중심으로)

  • Jung, Ju-Chul;Park, Jeong-Il;Lee, Dal-Byul
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.13 no.2
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    • pp.8-23
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    • 2010
  • The purpose of this study is to review the relationship between environmental assessment (EA) and land use planning through the theoretical and practical perspective. Theoretically, this research studies environmental land use planning incorporating with environmental assessment. Practically, through the review on EA review opinion in Korea Environment Institute for recent 10 years, environmental land use mitigations are investigated. The results of this study are as follows:first, there have been new and innovative review criteria and mitigation methods in environmental assessment; second, land use mitigation tools have been mostly used in environmental assessment; finally, there is a need for mediating role by land use section in EA review system.

Identification of Flooded Areas and Post-flooding Conditions: Developing Flood Damage Mitigation Strategies Using Satellite Radar Imagery (레이더 위성영상을 활용한 침수피해 지역 파악 및 완화방안 연구)

  • Lee, Moungjin;Myeong, Soojeong;Jeon, Seongwoo;Won, Joong-Sun
    • Journal of Environmental Policy
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    • v.8 no.2
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    • pp.1-23
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    • 2009
  • This study applied satellite radar imagery to identify flooded areas and examined post-flooding conditions using time-series satellite radar imagery for the development of flood damage mitigation strategies. Using time-series satellite radar images, this study constructed a map delineating areas vulnerable to frequent flood damage. The extracted flooded areas were combined with reference land use maps to examine flood damage by land use type. Major landuse types with severe flood damage were agricultural and forested areas. The analysis of the damage conditions, in terms of land use, served as the basis for developing flood damage mitigation policies, in conjunction with land use planning. The policies for flood damage mitigation can be summarized as land use regulations, land use planning, and flood damage mapping. A preventive measure to minimize flood damage of properties, which regulates developing areas with high flooding potential, is highly recommended. Although this study suggested a number of policies for flood damage mitigation, they represent only a small number of possible policies useful for mitigating flood damage and other environmental problems. Based upon the results of this study, it may be concluded that satellite radar imagery has great potential in providing basic data for large-scale environmental problems such as flooding and oil spills. Nevertheless, further examinations should be conducted and the application of satellite radar imagery should be used to examine other environmental problems.

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An Analysis on the Interrelationship between Land-use Characteristics and Damages caused by Natural Hazards (토지이용특성과 자연재해 피해액의 상관성 분석)

  • Shim, Jae-Heon;Kim, Ja-Eun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.9
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    • pp.4319-4325
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    • 2012
  • This study examines the effect of diverse land-use characteristics on the total sum of damages caused by natural hazards. The empirical results show that impermeable layer area, industrial land area, bare land area, stream area, and so on have a positive influence on damages, and that the area of levee has a strongly negative relationship with them. Therefore, this study strives to propose some efficient natural hazard mitigation ways in terms of land-use planning, based on our empirical findings.

Mitigation Effect of Watershed Land Use due to Riparian Vegetation on Stream Water Quality (수변림으로 인한 유역 토지이용이 하천 수질에 미치는 관계 완화효과 연구)

  • Hyeonil Kwon;Jong-Won Lee;Sang Woo Lee
    • Korean Journal of Ecology and Environment
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    • v.55 no.4
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    • pp.320-329
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    • 2022
  • Urban areas in watersheds increase the impervious surface, and agricultural areas deteriorate the water quality of rivers due to the use of fertilizers. As such, anthropogenic land use affects the type, intensity and quantity of land use and is closely related to the amount of substances and nutrients discharged to nearby streams. Riparian vegetation reduce the concentration of pollutants entering the watershed and mitigate the negative impacts of land use on rivers. This study analyzes the data through correlation analysis and regression analysis through point data measured twice a year in spring and autumn in 21 selected damaged tributary rivers within the Han River area, and then uses a structural equation model to determine the area land use. In the negative impact on water quality, the mitigation effect of riparian vegetation was estimated. As a result of the correlation analysis, the correlation between the agricultural area and water quality was stronger than that of the urban area, and the area ratio of riparian vegetation showed a negative correlation with water quality. As a result of the regression analysis, it was found that agricultural areas had a negative effect on water quality in all models, but the results were not statistically significant in the case of urban areas. As a result of the model estimated through the structural equation, BOD, COD, TN, and TP showed a mitigation effect due to the accumulation effect of river water quality through riparian vegetation in agricultural areas, but the effect of riparian vegetation through riparian vegetation was found in urban areas. There was no These results were interpreted as having a fairly low distribution rate in urban areas, and in the case of the study area, there was no impact due to riparian forests due to the form of scattered and distributed settlements rather than high-density urbanized areas. The results of this study were judged to be unreasonable to generalize by analyzing the rivers where most of the agricultural areas are distributed, and a follow-up to establish a structural equation model by expanding the watershed variables in urban areas and encompassing the variables of various factors affecting water quality research is required.

Analyzing Residential Land Use Change and Population Density Considering Climate Change Using Land Use Equilibrium Model in Jeju (토지이용균형모델을 이용한 기후변화에 따른 제주도 지역의 주거용 토지이용변화와 인구 밀도 예측)

  • YOO, So-Min;LEE, Woo-Kyun;Yamagata, Yoshiki;Lim, Chul-Hee;SONG, Chol-Ho;CHOI, Hyun-Ah
    • Journal of the Korean Association of Geographic Information Studies
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    • v.18 no.4
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    • pp.43-58
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    • 2015
  • The greenhouse gas emission caused by rapid economic growth and population is increasing in Korea. Also, climate change from greenhouse gases emission is accelerated. IPCC(Intergovernmental Panel on Climate Change) report projects an increase of greenhouse gas emissions by 90% from the year 2000 to 2030(SRES, 2000). Within this context, establishing countermeasures on climate adaptation and mitigation is becoming increasingly important to reduce the negative effect of climate change at a global level. Along with global efforts to tackle climate change, Korean government has incorporated 'Low Carbon Green Growth'strategies into its national policy agenda. Local governments have also conducted a number of studies to devise plans for environmentally friendly and sustainable city development. In this paper, the land-use equilibrium model, which reflects economic and geographical characteristics, is used to analyze the change in residential land use and population density. The target area for study is Jeju island in Korea. With an application of land use equilibrium model, it derived three types of scenarios of the land use change: (1) dispersion scenario-reflecting present-day conditions (2) adaptation scenario-applying adaptation measures to climate change and (3) combined scenario-integrating both adaptation and mitigation measures in model to climate change. By applying dispersion to combined scenario, the general trend shows a downward shift in population density. Subsequently, energy consumption and expected cost associated with casualties were calculated on the basis of the findings of respective scenario. The results show a descending trend in energy consumption and expected casualtie. Therefore, understanding for residential land use and population density of each scenario that analyzed land use equilibrium model in the study is expected to devise a environmental city plan for climate change stabilization and climate adaptation and mitigation.

Runoff Estimation with Consideration of Land-Use Distribution (토지이용 분포를 고려한 유출량 산정기법)

  • Son, Kwang-Ik
    • Journal of the Korean Society of Hazard Mitigation
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    • v.8 no.1
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    • pp.97-102
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    • 2008
  • The Natural Resource Conservation Service Curve Number(NRCS-CN) method is one of the widely used methods for computation of runoff from a basin. However, NRCS-CN method has a weak point in that the spatial land use distribution characteristics are ignored by using area-weighted CN value. This study developed a runoff estimation algorithm which can reflect the spatial land-use distribution. The algorithm consists of Moglen's theory and a developed flow accumulation estimation program in FORTRAN. Comparisons between the results from area-weighted CN method and this study showed reasonably good agreement with measured data of experimental watersheds. The developed program predicted lower runoff than the conventional NRCS-CN method. As a conclusion, this study proposes a new design direction which can simulate real runoff phenomena. And the developed program could be applied into runoff minimization design for a basin development.

Urban Heat Mitigation Effect Analysis based on the Land Use Location Distribution by Using an Ecosystem Service Valuation Model (생태계 서비스 가치평가 모형을 이용한 토지이용 위치분배에 따른 도시 열저감 효과분석)

  • Sangjun, Kang
    • Journal of Environmental Impact Assessment
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    • v.31 no.6
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    • pp.369-377
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    • 2022
  • The purpose of this study is to explore whether open spaces with land use characteristics of forest green areas can have different influence on the urban heat reduction depending on the location distribution, through the case of Gangneung-si downtown area. As a research method, the InVest Urban Cooling Model, which is a thermal phenomenon analysis model, is employed based on the most recent data available in 2018. In order to focus on the effect of location distribution of open space in the city, the downtown area is set as the observation area, not the entire city. The analysis of the land use location distribution scenarios shows that large-scale forests or clustered forests are more effective in reducing atmospheric heat in the region than several small-scale forests.

Preliminary Study for an Application to Environmental Impact Assessment of Remote Sensing Data (원격탐사자료의 환경영향평가 활용을 위한 기초연구)

  • Mun, Hyun-Saing;Kim, Myung-Jin;Kang, In-Goo;Bang, Kyu-Chul
    • Journal of Environmental Impact Assessment
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    • v.4 no.1
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    • pp.59-64
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    • 1995
  • Environmental Impact Assesment(EIA) is composed of various procedures, such as screening, scoping, inventory survey, prediction, assessment, mitigation measure, alternative assessment, and post management. Remote sensing introduced lately begins to be applied ecosystem and land use in inventory survey and assessment of EIA. This study explains on land use classification, buffering analysis of residential area, and overlaying analysis of odor predictive data with residential area for application to EIA with remote sensing data. Residential area extracted from land use classification of remote sensing provides effectively buffering analysis of residential area in selection of landfill site with GIS. It could assess also residential effect to an offensive odor by overlaying analysis. Application methods in EIA should be enlarged to assess effectively.

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Numerical Simulation for Urban Climate Assessment and Hazard (도시기후 평가와 방재를 위한 도시기상 수치모의)

  • O, Seong-Nam
    • Magazine of the Korean Society of Hazard Mitigation
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    • v.2 no.4 s.7
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    • pp.40-47
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    • 2002
  • Since it is important to understand the bio-climatic change in Seoul for ecological city planning in the future, this paper gives an overview on bio-climate analysis of urban environments at Seoul. We analyzed its characteristics in recent years using the observations of 24 of Automatic Weather Station (AWS) by Korea Meteorological Administration (KMA). In urbanization, Seoul metropolitan area is densely populated and is concentrated with high buildings. This urban activity changes land covering, which modifies the local circulation of radiation, heat and moisture, precipitation and creating a specific climate. Urban climate is evidently manifested in the phenomena of the increase of the air temperature, called urban heat Island and in addition urban sqall line of heavy rain. Since a city has its different land cover and street structure, these form their own climate character such as climate comfort zone. The thermal fold in urban area such as the heat island is produced by the change of land use and the air pollution that provide the bio-climate change of urban eco-system. The urban wind flow is the most important climate element on dispersion of air pollution, thermal effects and heavy shower. Numerical modeling indicates that the bio-climatic transition of wind wake in urban area and the dispersion of the air pollution by the simulations of the wind variation depend on the urban land cover change. The winds are separately simulated on small and micro-scale at Seoul with two kinds of kinetic model, Witrak and MUKLIMO.

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A Study on Variation and Development of Railroad Station Zones on Incheon Metro Train Rail Line 1 (인천 1호선전철 역세권의 변화 및 개발에 관한 연구)

  • Park, Man-Hee;Ahn, Kyung-Su
    • Journal of the Korean Society of Hazard Mitigation
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    • v.9 no.3
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    • pp.27-39
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    • 2009
  • The 1st Incheon Rapid Transit Line opened in October, 1999. However, the current development plans for areas near stations do not involve plans for the both urban planning and transportation together. As the focus on only the aspect of installing a new transportation mode, the developments even make the problems such as reckless development and traffic congestion gets worse. It is required to analyse status of the current land uses and land use plans in the future and consider distribution of functions of the areas near stations and aims of development plans so as to harmonize the functions of each region in view of making balance in the whole city. The aims of developments of areas near stations has to focus on the study follows steps to find and suggest aims and strategies for the revitalization plan for areas near stations with considering the both transportation and land uses together. The plans for the areas near stations of the Incheon 1st Rapid Transit Line are analysed and then the features and rational strategies are derived. The impact is analysed as applying the development strategies derived from the step into the areas near the stations of Incheon 1st Rapid Transit line.