Journal of Environmental Impact Assessment 2021 KCI Impact Factor : 0.74

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2015, Vol.24, No.1

  • 1.

    Evaluation of Soil Organic Carbon of Upland Soil According to Fertilization and Agricultural Management Using DNDC Model

    이경숙 , Yoon, KwangSik , 최동호 and 3 other persons | 2015, 24(1) | pp.1~15 | number of Cited : 0
    Abstract PDF
    To mitigate the impacts of climate change on agricultural ecosystems, development ofagricultural management for enhanced soil carbon sequestration is required. In this study, the effectsof fertilizer types (chemical fertilizer and manure compost), cropping systems, and crop residuemanagement on SOC(Soil Organic Carbon) sequestration were investigated. Summer corn andwinter barley were cultivated on experimental plots under natural rainfall conditions for two years with chemical fertilizer and manure compost. Soil samples were collected conducted and analyzedfor SOC for soil. To estimate long-term variation patterns of SOC, DNDC was run with theexperimental data and the weather input parameters from 1981 to 2010. DNDC simulation demonstrated SOC reduction by chemical fertilizer treatment unless plantresidues are returned; whereas compost treatments increased SOC under the same conditions andSOC increment was proportional to compost application rate. In addition, SOC further increasedunder corn-barley cropping system over single corn cropping due to more compost application. Regardless of nutrient input type, residue return increased SOC; however, the magnitude of SOCincrease by residue return was lower than by compost application.
  • 2.

    Analysing the effect of impervious cover management techniques on the reduction of runoff and pollutant loads

    Hyungseok Park , 최환규 , Chung, Se-woong | 2015, 24(1) | pp.16~34 | number of Cited : 0
    Abstract PDF
    Impervious covers(IC) are artificial structures, such as driveways, sidewalks, building’sroofs, and parking lots, through which water cannot infiltrate into the soil. IC is an environmentalconcern because the pavement materials seal the soil surface, decreasing rainwater infiltration andnatural groundwater recharge, and consequently disturb the hydrological cycle in a watershed. Increase of IC in a watershed can cause more frequent flooding, higher flood peaks, groundwaterdrawdown, dry river, and decline of water quality and ecosystem health. There has been anincreased public interest in the institutional adoption of LID(Low Impact Development) andGI(Green Infrastructure) techniques to address the adverse impact of IC. The ohjectives of this studywere to construct the modeling site for a samll urban watershed with the Storm Water ManagementModel(SWMM), and to evaluate the effect of various LID techniques on the control of rainfall runoffprocesses and non-point pollutant load. The model was calibrated and validated using the fielddata collected during two flood events on July 17 and August 11, 2009, respectively, and applied toa complex area, where is consist of apartments, school, roads, park, etc. The LID techniques appliedto the impervious area were decentralized rainwater management measures such as pervious coverand green roof. The results showed that the increase of perviousness land cover through LIDapplications decreases the runoff volume and pollutants loading during flood events. In particular,applications of pervious pavement for parking lots and sidewalk, green roof, and their combinationsreduced the total volume of runoff by 15~61 % and non-point pollutant loads by TSS 22~72 %, BOD23~71 %, COD 22~71 %, TN 15~79 %, TP 9~64 % in the study site.
  • 3.

    A Comparative Study on Species Richness and Land Suitability Assessment - Focused on city in Boryeong -

    Man-Seok Shin , Jang, Raeik , 서창완 and 1 other persons | 2015, 24(1) | pp.35~50 | number of Cited : 5
    Abstract PDF
    The purposes of this study are to apply species distribution modeling in urbanmanagement planning for habitat conservation in non-urban area and to provide a detailedclassification method for management zone. To achieve these objectives, Species Distribution Modelwas used to generate species richness and then to compare with the results from land suitabilityassessment. 59 species distribution models were developed by Maxent. This study used 15 model variables (5 topographical variables, 4 vegetation variables, and 6 distance variables) for Maxentmodels. Then species richness was created by sum of predicted species distributions. Land suitabilityassessment was conducted with criteria from type Ⅰ of “Guidelines for land suitability assessment”. After acquiring evaluation values from species richness and land suitability assessment, the resultsfrom these two models were compared according to the five grades of classification. The areas withthe identical grade in Species richness and land suitability assessment are categorized and thencompared each other. The comparison results are Grade1 10.92%, Grade2 37.10%, Grade3 34.56%,Grade4 20.89% and Grade5 1.73%. Grade1 and Grade5 showed the lowest agreement rate. Namely,development or conservation grade showed high disagreement between two assessment system. Therefore, the areas located between urban, agriculture, forest, and reserve have a tendency tochange easily by development plans. Even though management areas are not the core area ofreserve, it is important to provide a venue for species habitat and eco-corridor to protect and improvebiodiversity in terms of landscape ecology. Consequently, adoption of species richness in three levelsof management area classification such as conservation, production, planning should be consideredin urban management plan.
  • 4.

    Study on Flora Distributed around Mt. Hwangseok, Gyeongsangnam-do for Selecting the Ecological and Landscape Conservation Area

    Oh, Hyun-Kyung , KIM SEI CHEON , You Ju Han | 2015, 24(1) | pp.51~65 | number of Cited : 13
    Abstract PDF
    The flora distributed around Mt. Hwangseok were summarized as 495 taxa including 97families, 295 genera, 394 species, 4 subspecies, 80 varieties and 17 forms. In the component ratio oftaxa, pteridophyta was 4.2%, 1.2% of gymnospermae, 78.8% of dicotyledonae and 15.8% ofmonocotyledonae. The rare plants were 9 taxa including Aconitum chiisanense, Eranthis stellata,Aristolochia contorta, Viola albida and so forth. The Korean endemic plants were 13 taxa including Populustomentiglandulos, Pseudostellaria coreana, Aconitum pseudolaeve, Thalictrum actaefolium var. brevistylum and so forth. The specific plants by floristic region were 16 taxa including Cimicifuga heracleifolia,Sanguisorba longifolia, Symplocarpus renifolius, Betula davurica and so forth. The plants adaptable toclimate change were 11 taxa including Aconitum pseudolaeve, Ajuga spectabilis, Carex okamotoi, Rhynchosiavolubilis and so forth. The naturalized plants were 20 taxa including Fallopia convolvulus, Rumex crispus,Phytolacca amrericana, Robinia pseudoacacia and so forth. The invasive alien plant was Aster pilosus. Theemergence of local ecologically important species, set the correct range for the core and buffer zone,transition zone, coded will be necessary, the distribution of the specialty plant areas and rare plants,an area management plan should be organized by nature. In addition, a variety of assessmenttechniques and accurate data to establish the validity of the core area is also set to acquire.
  • 5.

    A Time-Series Study of Ambient Air Pollution in Relation to Daily Mortality Count in Yeosu

    Park Heejin , Kyung-Sook Woo , 정은경 and 4 other persons | 2015, 24(1) | pp.66~77 | number of Cited : 7
    Abstract PDF
    The association between daily total/cardiovascular mortality and air pollution in Yeosuwas investigated over 11-year period (January 2001 to December 2011). The purpose of this studywas to evaluate th relative importance of the major air pollutants [particulate matter (PM10), sulfurdioxide (SO2)] as predictors of daily total/cardiovascular mortality. People aged 65 and oldershowed total mortality increase by 5.0% with SO2 concentration increase by 11.67ppb(IQR) wasfound to raise mortality caused by circulatory diseases by 8.6%, exhibiting a statistically significantresult.
  • 6.

    Current and Future Water Demand in Communes Surrounding Kibira National Park in Burundi

    Bankuwiha, Melchiade , KANG DAE SEOK , KI JUNE SUNG | 2015, 24(1) | pp.78~86 | number of Cited : 0
    Abstract PDF
    Water plays the fundamental role in sustaining the living system. Water scarcity is mostlyexperienced dramatically by people living in poverty, most of them in rural areas and often in thepoorest countries. Burundi has been identified as one of those countries. This study aimed to analyzeand estimate the current and future water demands in the seven communes surrounding KibiraNational Park (KNP) in Burundi. Sectors such as households, livestock, agricultural production andindustry as the key water users in the study area were considered. The results showed an alarmingincrease in future water demand. Water demand by food crops increased to 288,779,060 m3/yr in 2020and 306,018,348 m3/yr in 2050. Agricultural sector will be demanding the major available water in the seven communes surrounding Kibira National Park except Muruta and Bukeye which showed thatwater demand for tea industry was the highest in 2050. The water resources could be the greatestchallenges for the overall development of the communities surrounding Kibira National Park. Thecurrent water resources may not be enough and therefore may not be able to meet the needs of thoseseven communities around KNP.
  • 7.

    Characteristics of Nitrate Contamination of Groundwater - Case Study of Ogcheon Area -

    박호림 , KIM MYEONG KYUN , Hong Sangpyo | 2015, 24(1) | pp.87~98 | number of Cited : 6
    Abstract PDF
    Geochemical characteristics, water quality, NO3_ contamination and the origin of NO3_were analyzed for the groundwater located at Ogcheon, Korea. The water qualities were weaklyacidic to weakly alkalic and redox potentials indicated reduction condition. Compared to graniticrocks, metamorphic sedimentary rocks with intercalations of limestones and dolomites tended tobe more effectively dissolved, resulting in higher pH and higher concentrations of dissolvedingredients. Contamination of heavy metals was not revealed. Geochemical reactions of carbonate rocks and influxes of artificial contamination ingredients seemed to simultaneously determine thegeochemical characteristics and water qualities in the study area. From the results of δ15N isotopeanalysis, the origin of NO3_ was estimated to be influenced dominantly by agricultural activitiesand human feces and urine.
  • 8.

    A Review on the Public Appeals of the Ecosystem and Nature Map

    Ahn, kyunghwan , 신영규 , 김지연 and 6 other persons | 2015, 24(1) | pp.99~109 | number of Cited : 4
    Abstract PDF
    The Ecosystem and Nature Map (ENM) is basic map for current status of naturalresources. The map has been offered information to ecological conservation and restoration, as wellas to land use planning and policy making. The map composed of 794 sheets in 1:25,000 scaleclassifies total areas into three grade zones (1st, 2nd and 3rd grade zones) and separately managedzone. In 2005, the first draft Ecosystem and Nature Map was prepared by the second NationalEcosystem Survey. It was opened for the people to search and appeal. So 1,419 cases of public appeals on the first draft Ecosystem and Nature Map were submitted in 2005. After partial revision,the first Ecosystem and Nature Map was announced in 2007. The second draft Ecosystem andNature Map was prepared by the third National Ecosystem Survey and opened to public in 2012. As a result, 1,263 cases of public appeals were submitted in 2012. Since the first announcement of the Ecosystem and Nature Map in April 2007, 182 cases of publicappeals on the Map were submitted until December 2013. Among them, 159 cases were announcedwith revision. According to the first Ecosystem and Nature Map announced in 2007, graded areascovered 7.5% in the 1st grade zone, 39.2% in the 2nd grade zone and 44.7% in the 3rd grade zone ofthe national land area, respectively. In the second draft Ecosystem and Nature Map in 2012, areasof the 1st grade zone and the 2nd grade zone were 9.2% increased 1.7 percentage points and 45.5%increased 6.3 percentage points, and areas of the 3rd grade zone were 36.6% decreased 8.1 percentagepoints. Among areas of the 1st grade zone, Gangwondo occupies 54.3% in 2007 and 47.6% in 2012. Gangwondo consists of the highest percentage of the 1st grade zone and the smallest of the 3rdgrade zone. Seoul has the highest percentage of the 3rd grade zone. There were the highest increaseof the 1st grade zone in Gyeongsangbukdo and the highest decrease in Jeollabukdo and Seoul. Vegetation is the most important evaluation factor to determine the grade of the Ecosystem andNature Map.