Journal of Environmental Impact Assessment 2021 KCI Impact Factor : 0.74

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2014, Vol.23, No.6

  • 1.

    Value Estimation for Environmental Resources of Natural river Using Conjoint Analysis - Focused on small River of Incheon Metropolitan City -

    Lee, KyungSu , 김태형 , 류재근 | 2014, 23(6) | pp.417~431 | number of Cited : 0
    Abstract PDF
    There is a Conjoint Analysis to estimate the environmental value of natural river restorationproject of Inchon Metropolitan City’s small River: Gong-chon Stream, Gul-po Stream, Seung-gi Stream,Jang-su Stream. In order to find out the optimal expense condition, we tried to estimate the possiblepayable amount. According to the analysis, almost all people are willing to pay 15,000 Won. In caseof the river types, the people liked 10 cm’s depth of water and there should be brook trail, convenient facilities and flood plain at the stream edge space. But it is impossible to build these facilities withminimum fare 15,000 Won per a household. If the necessary expenses set high, the tax resistance ofthe local residents will be increased. So, in consideration of the analytical results of the attribute level,we draw five alternatives. This study is based on the results of Incheon metropolitan City residents’survey, and there is Conjoint Analysis to estimate the environmental value of natural-type river projectof Incheon metropolitan City. If it is reflected the special assume factors of this study, and if there isexact environmental value estimation of the various river quality through different analysis, then itwill become a study of high utilizing.
  • 2.

    Calibration of WASP7 Model using a Genetic Algorithm and Application to a Drinking Water Resource Reservoir

    배상목 , CHO JAE HEON | 2014, 23(6) | pp.432~444 | number of Cited : 0
    Abstract PDF
    When the water quality modelling is done with a manual calibration, it is possible thatthe researcher’s opinion may affect the objectivity of the research. Hence, the role of the automaticcalibration is highly important. This research applies a technique to automatically calibrate the waterquality parameters by implementing an optimization method. This involves estimating the optimumwater quality parameters targeting influential parameters towards the lake’s BOD, DO, Phosphorus,Nitrogen and Phytoplankton. To accurately calculate the water temperature and hydrauliccharacteristics of a deep, stratifying lake, EFDC, a 3-dimensional hydraulic model which can belinked to the WASP7 was applied. With EFDC, the segment of the lake is formed and utilized as aninput data of the WASP7. For the calibration of the water quality parameters of the WASP7, an for calibration, the normalized residuals of the observed and calculated values of DO, TN, CBOD wererelatively small and the three water quality variables were calibrated properly. Yet the accuracy of thecalibration of TP and Chl-a was relatively low.
  • 3.

    A Comparative Study for Estimation Methodologies of Soil Organic Carbon Stocks for Environmental Assessment on Development Projects

    Sangil Hwang , 박선환 , 전영봉 and 3 other persons | 2014, 23(6) | pp.445~452 | number of Cited : 1
    Abstract PDF
    The objective of this study was to propose the best methodology for estimating soilorganic carbon stocks during environmental assessment for development projects. We comparedthree methodologies which were developed by Korea Environment Corporation(2010), Korea ForestResearch Institute (2006), and Jin-Hyun Jung (1998). We found that the methodology developed byJin-Hyun Jung (1998) shows the worst performance and the methodology of Korea Forest ResearchInstitute (2006) does not reflect a variety of soil types and land use characteristics shown indevelopment project plans. Therefore, we propose that the methodology developed by KoreaEnvironment Corporation (2010) is the most reasonable one because it is internationally acceptedand used for local governments to make the inventory of greenhouse gases as well as to set up itsreduction strategy.
  • 4.

    A nationwide analysis of mammalian biodiversity hotspots in South Korea

    Ji-Yeon Kim , 권혁수 , 서창완 and 1 other persons | 2014, 23(6) | pp.453~465 | number of Cited : 8
    Abstract PDF
    Hotspots are top sites in terms of species diversity as the most threatened and mostdiverse sites which have been used to select priority areas for reserves. The purpose of this paper isto identify biodiversity hotspots through analyzing nationwide spatial patterns of species richnessand rarity of Korean mammals. Four endangered mammals and eleven common mammals wereselected as target species. Environmental variables as model input data were consisted oftopography, distance, and vegetation structure etc. and Maxent was used to develop speciesdistribution models for target species. Species richness and rarity were used as index of biodiversity. The results of this study were as follows. Firstly, hotspots of species richness for endangeredmammals were in high elevation and steep mountain areas. However, species richness for whole mammals were high in low elevation of mountains. Secondly, distribution pattern of species rarityfor endangered mammals were similar as richness. However, hotspots of species rarity for wholemammals were a little different from species richness. Species rarity was high in both low and highelevation of mountain areas. This study will provide the useful information for a biodiversityassessment, a habitat conservation, a national ecological network plan, and the management ofprotected areas.
  • 5.

    Comparison of Flooding Tolerance for the Selection of Plants in Vegetation-Based Low Impact Development Facilities

    Lee, Eun-Yeob , KyoungHak Hyun , 허진성 and 2 other persons | 2014, 23(6) | pp.466~476 | number of Cited : 4
    Abstract PDF
    In this study, 10 species of plants with high adaptability to aquatic environments werecompared for selecting plant species suitable for vegetation-based low impact development (LID)facilities. The flooding tolerances of the plants were tested by analyzing their growth status under halfimmersionand full-immersion conditions, with varying durations of immersion. In decreasing orderof flooding tolerance, the comparative analysis of plant height and leaf width is as follows: Hemerocallisfulva, Juncus effusus var. decipiens, Iris pseudoacorus, Phragmites communis TRIN, Typha orientalis C.Presl,Aster koraiensis Nakai, Iris sanguinea, Equisetum hyemale, Acorus calamus. Specifically, Hemerocallis fulva,Juncus effusus var. decipiens. Iris pseudoacorus showed excellent growth status under both immersionconditions. Iris sanguinea and Equisetum hyemale. withered to death by around day 27 of the experiment, but their flooding tolerance was confirmed to be relatively high. Iris pseudoacoru showed floodingtolerance under the half-immersion condition unlike under the full-immersion condition, whencompared on day 21 of the experiment. Aster koraiensis Nakai also thrived better under the halfimmersioncondition, proving to be a highly immersion-resistant species. On the basis of the resultsof this experiment, Hemerocallis fulva, Juncus effusus var. decipiens and Iris pseudoacorus, Typha orientalisC.Presl were selected as species suitable for vegetation-based LID facilities.
  • 6.

    Effects of Physical environmental factors on Radiation fluxes in Urban areas

    bonggeun song , Kyunghun Park | 2014, 23(6) | pp.477~491 | number of Cited : 3
    Abstract PDF
    The purpose of this study is to develop urban planning for mitigating thermal comfortby analyzing the relationship between various physical environmental factors and radiation fluxesfocused on urban areas of Changwon city, Gyeongsangnam-do. Physical environmental factorswere analyzed by sky view factor (SVF), land cover and land use types using GIS program. Radiationfluxes were measured upward and downward in solar and terrestrial radiation by mobilemeasurement during 3 days (2 daytime and 1 nighttime) in summer season. SVF is high in urbanpark less around buildings. High dense building sites were low. Downward solar radiation fluxeswere the highest about 700W/m2 at daytime, and decreased in spatial type arranged densebuildings. Upward solar and terrestrial radiations was affected by land cover types that have thermal features such as reflectivity, emissivity, and heat capacity. Therefore, urban space needs appropriateplanning with building arrangement, green walls and land cover replacement for mitigating thermalcomfort in urban area.
  • 7.

    The Characteristics of Heavy Metal Accumulations in Feral Pigeon (Columba livia) Feathers for Environmental Monitoring

    이장호 , Lee,Jong-Chun , Sang Hee Lee and 4 other persons | 2014, 23(6) | pp.492~504 | number of Cited : 2
    Abstract PDF
    Feral pigeon (Columba livia) has been known as a good indicator for accumulations ofchemical pollutants in urban areas. However, it is against the animal rights to kill the indicator species in order to monitor pollutants accumulations in wild birds. Eggs and feathers of birds,therefore, have been used as non-invasive monitoring materials. Even though eggs are a goodindicator for accumulations of lipophilic pollutants, but unsuitable for some heavy metals such aslead and cadmium because bird’s ovary builds a sort of barrier to inhibit higher accumulations ofsome heavy metals in the eggs. Therefore, feathers instead of eggs have been used as a non-invasiveindicator for accumulations of heavy metals. However, there are few studies of heavy metalaccumulations of feral pigeon in Korea. In this study, we characterized the characteristics of heavymetal accumulations of feathers in relation to internal organs (bloods, viscera and bones) in feralpigeons between two sites (Hangang Park representing urban area and Hampyeong Park for ruralarea). The samples from the Hangang Park showed significantly higher lead (Pb) concentrations inthe blood, liver and bone than those from Hampyeong Park. The Pb concentration in the featherswas also significantly higher at Hangang Park than at Hampyeong Park. The analytical result forthe breast, wing and tail feathers, and the internal organs (blood, lung, liver, kidney and bone)indicated that the Pb concentrations in the feathers were significantly positively correlated with thelevels in the kidney and bone. Overall, feathers of feral pigeon may be candidate for bioindicator tomonitor for Pb accumulations in urban areas.
  • 8.

    Strategy for Introducing Transboundary Environmental Impact Assessment in Northeast Asia

    Young-Joon Lee , Nankyoung Moon | 2014, 23(6) | pp.505~516 | number of Cited : 1
    Abstract PDF
    Northeast Asia including China, Japan, Mongolia, Russia, DPRK and ROK, is ageographically close region that falls under the same environmental influence. Recently the region isnot only facing serious domestic environmental problems with rapid economic growth, but alsoconfronted with transboundary environmental problems and associated conflicts between countries. Unfortunately, Northeast Asia lacks a solid environmental management system among countries todeal with transboundary and other environmental issues. Transboundary Environmental ImpactAssessment (TEIA) can, therefore, be one of the essential systematic measures in which environmental problems between countries would be negotiated. However, it would be necessary to have an indepthdiscussion of what we have to do first for implementing TEIA system in the region, and howto operate it while customizing each Northeast Asian country with different EIA system and socioeconomiccircumstance. All these cannot be decided in a short time, and we need to invest enoughtime for discussing and considering them from various aspects. Recently, the Korean governmentdeclared “Eurasia Initiative”. The initiative proposes important developing projects and ultimatelyplans to build a peaceful community throughout Eurasia based on comprehensive cooperation. Theinitiative aims to increase exchanges in transportation, energy and agricultural sectors to achieve thegoals. In this regard, implementing TEIA in Northeast Asia is urgently needed and we have to preparethe strategy for introducing TEIA mechanism. Based on the results of 10 year experience on TEIAprojects conducted since 2004, we suggest double-track approaches for developing TEIA mechanism. We continuously need to make an effort to establish a regional TEIA mechanism that all countrieslegally join, and simultaneously we also have to prepare a process to carry out TEIA for upcomingprojects based on bi- or multi-lateral agreements. Practical solutions such as conducting pilot TEIAwith relevant countries and developing TEIA guideline for the region could be the first step.
  • 9.

    Weight setting of major environmental assessment items using Analytical Hierarchy Process - Case for the selection of railroad route -

    이민주 , Kim, Minkyung , Lee, Sang-Don | 2014, 23(6) | pp.517~526 | number of Cited : 5
    Abstract PDF
    This paper performed studies on a guide for an environmental assessment necessary toselect railroad route optimally, and presented techniques for an environmental friendly route selectionusing AHP(Analytical Hierarchy Process) as an objective method. The AHP is an approach to decisionmaking that involves multiple choice criteria into a hierarchy and assessing the relative importance ofeach criterion, and determining an overall ranking of the alternatives. For the purpose of this study,we established the weight and the order of major environmental assessment items based on the surveyof experts. The results of the weight by AHP were in order of Fauna & Flora, Topography & Geology,Nature Environmental Assets, Noise & Vibration, Water Quality, Landscape and Air Quality indicating natural environment should be in priority. To develop the more efficient environmentalfriendly route selection systems, it is necessary to consider economical, technical, and social aspects inaddition to environmental consideration.