Journal of Environmental Impact Assessment 2021 KCI Impact Factor : 0.74

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pISSN : 1225-7184
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2015, Vol.24, No.3

  • 1.

    Assessing uncertainty in future climate change in Northeast Asia using multiple CMIP5 GCMs with four RCP scenarios

    SHIN YONG HEE , 정휘철 | 2015, 24(3) | pp.205~216 | number of Cited : 10
    Abstract PDF
    The CMIP5 climate change scenarios from 34 GCMs were analyzed to quantitatively assess future changes in temperature, precipitation, and solar radiation against the global region and the Northeast Asia region with a focus on South Korea, North Korea, or Japan. The resulting projection revealed that the Northeast Asia region is subjected to more increase in temperature and precipitation than the global means for both. In particular, temperature and precipitation in North Korea were projected to increase about 5.1°C and 18%, respectively under the RCP 8.5 scenario, as compared to the historical means for 30 years (1971-2000), although a large uncertainty still exists among GCMs. For solar radiation, global mean solar radiation was predicted to decrease with time in all RCP scenarios except for the RCP 2.6 scenario. On the contrary, it was predicted that the amount of solar radiation in the Northeast Asia increases in the future period.
  • 2.

    User assessment about ecological stream restoration of Jeonjucheon - Focused on Environmental Characteristics and Importance-Satisfaction Analysis -

    임현정 , Lee, Myung-Woo , Jeong, Moonsun | 2015, 24(3) | pp.217~232 | number of Cited : 5
    Abstract PDF
    This study is to examine the section-based stream management with environmental characteristics and user monitoring. In Jeonjucheon, upstream section located near to Jeonju Hanok village has very good water quality and natural stream landscape. In case of mid/down streams, water quality is good and heavy concentration of facility leads to high use rates of these sections. The questionnaire consists of 5 parts: user characteristics, use behavior, citizen participation, importance rank, and Importance-Satisfaction(IS). 383 out of 454 responses with listwise deletion are used for demographic analysis and IS Analysis. In terms of citizen participation through ‘ecological experience activity’ and ‘stream stewardship activity’, ‘occasional participation’ shows the average of 78% in all three sections. For importance rank, the results arranged in order of priority show ‘water quality’ > ‘green corridor’ > ‘trail’ in up/down streams and ‘water quality’ > ‘vegetation management’ > ‘trail’ in midstream. Therefore, ‘water quality’ appears to be the most important variable among 13 variables. At last, the results of ISA indicate that all 10 variables need to be improved as satisfaction is lower than importance. In addition, ‘plant management’ variable falls into ‘concentrate here’ quadrant where importance is high and satisfaction is low.
  • 3.

    A Study on the Correlation between Road-kill Hotspot and Habitat Patches

    석상묵 , Jiyeong Lee | 2015, 24(3) | pp.233~243 | number of Cited : 7
    Abstract PDF
    The ecosystem fragmentation due to transportation infrastructure causes road-kill phenomenon. When making policy for reducing road-kill it is important to select target-species in order to enhance its efficiency. However, many corridors installed in Korea have been raised issues about their effectiveness due to lack of considerations such as target-species selection, site selection, and management, etc. In this study, we are to grasp relationship between road-kill area and habitat patches and suggest that spatial location of habitat patches should be considered as one of the important factors when making policy for reducing road-kill. Habitat patches were presumed from overlying suitability index that chosen by literature review and road-kill hotspot was determined by Getis-Ord Gi* analysis. Afterwards, we performed a correlation analysis between Gi Z-score and the distance from habitat patches to the roads. As a result, there is a negative correlation between two variables, It affects the Gi Z-score going up if the habitat patches and the roads become closer.
  • 4.

    A Comparative Study on the Plans for Strategic Environmental Assessment in Korea and Foreign Countries

    오진관 , 권영한 | 2015, 24(3) | pp.244~259 | number of Cited : 2
    Abstract PDF
    The Strategic Environmental Impact Assessment(SEIA) in Korea has been introduced and implemented for 15 policy-level plans and 86 project-level plans since 2012. Lately an important issue of the Environmental Impact Assessment(EIA) policy has been emerged regarding the expansion of the policy-level plans subjected to SEIA. Thus, we propose the plans that need to be included in the system, compared with those subjected to the Strategic Environmental Assessment(SEA) enforced in the law or the guideline of 10 foreign counties, especially with those of Germany, France, Italy, the United Kingdom, and Netherlands. Specifically the study suggests that plans related to energy as well as land use, which are well known to cause potential environmental impacts and subjected to the federal-level SEA in those countries, should be the subject of SEIA.
  • 5.

    Environmental features of the distribution areas and climate sensitivity assesment of Korean Fir and Khinghan Fir

    Park Hyun Chul , Lee, Jung Hwan , Lee Gwan Gye and 1 other persons | 2015, 24(3) | pp.260~277 | number of Cited : 18
    Abstract PDF
    The object of this study was the climate change sensitivity assessment of Korean Fir and Khinghan Fir as a representative subalpine plant in South Korea. Using species distribution models, we predicted the probability of current and future species distribution. According to this study, potential distribution that have been predicted based on the threshold (MTSS) is, Khinghan Fir was higher loss rate than Korean Fir. And in the climate change sensitivity assessment using the scalar sensitivity weight (Wis), Wis of Korean Fir was higher relatively than the sensitivity of Khinghan Fir. When using the species distribution models as shown in this study may vary depending on the probability of presence data and spatial variables. Therefore should be prior decision studies on the ecological environment of the study species. Based on this study, if it is domestic applicable climate change sensitivity assessment method is developed. it would be important decision-making to climate change and biological diversity of adaptation policy.
  • 6.

    Characteristics of Algae Occurrence on Environmental Changes

    Seong-Yoo Noh , Yuna Shin , 최희락 and 3 other persons | 2015, 24(3) | pp.278~286 | number of Cited : 7
    Abstract PDF
    Pilot scale system was designed to identify the growth and movement of algae, depending on environmental changes(retention time, nutrient concentration, etc) in Gangjeong- Goryeong Weir of the Nakdong River. Considering the stability of algal culture and easy observation of algal growth, pilot scale system was made of transparent acrylic material(3 sets of flexible cylindrical water tanks with 1 m diameter and 4 m height). Auxiliary equipments include light intercepter, water inflow device for different water depth and storage of reclaimed water. The retention time was 2 days(before construction of weir; treatment 1), 8 days(after construction of weir, 2013; treatment 2) and 30 days(2014; treatment 3). According to the water temperature of treatment 1 were similar by depth, treatment 3 showed a difference between the surface(0 m) and bottom(4 m) more than 3 °C. DO, pH showed relatively high in the surface than the bottom. Nutrients showed eutrophic condition in all experiments. The Chlrophyll-a concentration of the treatment 1 showed a relatively lower value than the Chlrophylla concentration of the treatment 2 and 3. Therefore, the retention time was considered to influence the growth of phytoplankton.
  • 7.

    Effects of Landscape Ecological Characteristics on Bird Appearance - Focused on The Nakdong River Estuary -

    김범수 , 여운상 , 오동하 and 1 other persons | 2015, 24(3) | pp.287~299 | number of Cited : 7
    Abstract PDF
    If the Nakdong River estuary is to be sustainable, land use management practices need to consider bird habitat requirements, especially given that the area serves as an important migratory bird sanctuary. In this study, bird habitats found in the Nakdong River estuary were classified into 11 different types including Phragmites australiss, mud flat, farmland, open surface in freshwater, sand bar, riparian forest, Scirpus planiculmis, waterway, construction, grasslands, and open surface in sea or brackish water. Taking into consideration the regional characteristics, habitat properties, and landscape indices, a total of 12 study sites were analyzed. Mud flat, construction, farmland, and P. australis account for 80% of the total land area. The high area ratio of construction and farmland to other types of habitat revealed a high amount of historical human activity and intervention in the area. Both patch numbers as well as patch density were high in West Nakdong River, Samrak Waterfront, Maekdo River, and Daejeo Floodgate, with these areas showing the greatest fragmentation as well. Total numbers of species and individuals had a positive correlation with the area and the number of habitat types. Findings suggest that protecting the habitat area, especially in S. planiculmis, is the most important factor for bird habitat management and that future development could result in habitat loss, having a profoundly adverse impact on bird populations. Therefore, it is important that the total area should be carefully protected by land use regulations in order to ensure that the Nakdong River estuary maintains its functional integrity as a migratory bird sanctuary.