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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Ecology and Resilient Infrastructure
Journal Basic Information
Journal DOI :
Korean Society of Ecology and Infrastructure Engineering
Editor in Chief :
Volume & Issues
Volume 3, Issue 2 - Jun 2016
Volume 3, Issue 1 - Mar 2016
Selecting the target year
Creating a Sustainable City with Low Impact Development and Green Solutions
Kim, Reeho ;
Ecology and Resilient Infrastructure, volume 3, issue 2, 2016, Pages 77~79
DOI : 10.17820/eri.2016.3.2.077
Low Impact Development and Green Infrastructure in South Korea: Trends and Future Directions
Kim, Reeho ;
Ecology and Resilient Infrastructure, volume 3, issue 2, 2016, Pages 80~91
DOI : 10.17820/eri.2016.3.2.080
Diverse types of meteorological disasters that are frequently occurring at the present time, such as urban flooding, draught, heat waves, or tropical nights do not only cause casualties and property damages but also make it difficult to preserve the natural environment of the city. That is why Low Impact Development or Green Infrastructure has recently received lots of attention as a means to minimize meteorological disasters, adapt to climate change and to leave a better urban environment for the next generation. As of now, Korea's low impact development and green infrastructure technology are standing at the stage of incubation or demonstration. Both central and provincial governments have accelerated the updating of laws and regulations, which allows us to turn the Gray City with Gray Infrastructure that only uses water into a Green City with Green Infrastructure that manages the water. To spread and distribute such a notion in a systemic way, it requires new technology development tailored to Korea, verification of technology, and maintenance of related technological standards, cooperation with other industries, training & promotion, and the participation of citizens.
Development of a Verification and Certification Method of Green Infrastructure and Low Impact Development Technologies
Shin, Hyun Suk ; Park, Jong Bin ; Lee, Jae Hyuk ;
Ecology and Resilient Infrastructure, volume 3, issue 2, 2016, Pages 92~99
DOI : 10.17820/eri.2016.3.2.092
This study developed a verification and certification method of technologies of green infrastructure (GI) and low impact development (LID) that gained interest recently. The outdoor testbed used in this study consisted of a building type, a road type, a parking lot type, a rain garden type and a bioretention type. Indoor test facilities were ready for testing using hydrology efficient analysis, pavement and soil analysis and water environment analysis. The development of outdoor and indoor test facilities were used to certify the efficiency of GI & LID technologies, and this was expected to contribute to the activation of the related projects by providing reliable data for the application of GI & LID techniques.
Assessment of Performances of Low Impact Development (LID) Facilities with Vegetation
Hong, Jung Sun ; Kim, Lee-Hyung ;
Ecology and Resilient Infrastructure, volume 3, issue 2, 2016, Pages 100~109
DOI : 10.17820/eri.2016.3.2.100
Low impact development (LID) facilities are established for the purpose of restoring the natural hydrologic cycle as well as the removal of pollutants from stormwater runoff. Improved efficiency of LID facilities can be obtained through the optimized interaction of their major components (i.e., plant, soil, filter media, microorganisms, etc.). Therefore, this study was performed to evaluate the performances of LID facilities in terms of runoff and pollutant reduction and also to provide an optimal maintenance method. The monitoring was conducted on four LID technologies (e.g., bioretention, small wetlands, rain garden and tree box filter). The optimal SA/CA (facility surface area / catchment area) ratio for runoff reduction greater than 40% is determined to be 1 - 5%. Since runoff reduction affects the pollutant removal efficiency in LID facilities, SA/CA ratio is derived as an important factor in designing LID facilities. The LID facilities that are found to be effective in reducing stormwater runoff are in the following order: rain garden > tree box filter > bioretention> small wetland. Meanwhile, in terms of removal of particulate matter (TSS), the effectiveness of the facilities are in the following order: rain garden > tree box filter > small wetland > bioretention; rain gardens > tree box filter > bioretention > small wetland were determined for the removal of organic matter (COD, TOC), nutrients (TN, TP) and heavy metals (Cu, Pb, Cd, Zn). These results can be used as an important material for the design of LID facilities in runoff volume and pollutant reduction.
Evaluation of Field Permeability and Material Characteristics of Permeable Block for Roadway Pavement
Park, Daegeun ; Jung, Wonkyong ; Jeong, Doowon ; Baek, Jongeun ; Lee, Jinwook ;
Ecology and Resilient Infrastructure, volume 3, issue 2, 2016, Pages 110~116
DOI : 10.17820/eri.2016.3.2.110
The rapid expansion of buildings and paved roads increases the risk of flood disaster in an urban area. One of the solutions can be the use of permeable pavements. This study evaluated the permeability of permeable blocks used for the roadway pavement. Joint fillers and mat sands of the investigated blocks met the corresponding standards. The flexural strength of the blocks was 5.29 MPa to meet these standards. Based on interior permeability test results after pollution, the four products evaluated were categorized into the following three levels: One for the
level, one for the
level and two for the
level. From the field permeability test and pervious concrete infiltration test results nine months after their construction, all the products except one passed the quality standards of 0.1 mm/s.
Establishment of Resilient Infrastructures for the Mitigation of an Urban Water Problem: 1. Robustness Assessment of Structural Alternatives for the Problem of Urban Floods
Lee, Changmin ; Jung, Jihyeun ; An, Jinsung ; Kim, Jae Young ; Choi, Yongju ;
Ecology and Resilient Infrastructure, volume 3, issue 2, 2016, Pages 117~125
DOI : 10.17820/eri.2016.3.2.117
Current cities encounter various types of water problems due to rapid urbanization and climate change. The increasing significance of urban water problems calls for the establishment of resilient alternatives to prevent and minimize social loss that results from these phenomena. As a background research for establishing resilient infrastructures for the mitigation of urban water problems, we evaluated the robustness of structural alternatives for urban flood as a representative case. Combining the robustness index (RI) and the cost index (CI), we suggested the robustness-cost index (RCI) as an indicator of the robustness of structural alternatives, and applied the index to assess the existing infrastructures and structural alternatives (i.e., sewer network expansion, additional storage tank construction, and green roof construction) at a site prone to floods located around Gangnam-station, Seoul, Korea. At a rainfall intensity frequency range of 2 to 20 years, the usage of a storage tank and a green roof showed relatively high RCI value, with a variation of an alternative showing greater RCI between the two depending on the size of design rainfall. For a rainfall intensity frequency of 30 years, installing a storage tank with some green roofing was the most resilient alternative based on the RCI value. We proposed strategies for establishing resilient infrastructures for the mitigation of urban floods by evaluating the robustness of existing infrastructures and selecting optimal structural alternatives with the consideration of scales of design disaster.
Improvement of Infiltration by Applying Hybrid Low Impact Development (LID) Infiltration Pipes in an Urban Area
Han, Kyung Soo ; Park, Yong Soon ;
Ecology and Resilient Infrastructure, volume 3, issue 2, 2016, Pages 126~129
DOI : 10.17820/eri.2016.3.2.126
The risk of flooding and groundwater depletion is increasing due to the increase of impervious area in an urban area that reduces the volume of infiltration and increases the outflow of rainwater. The objective of this study is to examine the impact of installation of roadside tree protectors with infiltration pipes in terms of the change of the infiltration rate. Through this study, it has been attested that roadside tree protectors with infiltration pipes increased the infiltration rate and decreased water level on the ground, and could be applied in an urban area as the low impact development (LID) facilities.
Restoration of Water Cycle by a Rainwater Management System Applied to Low Impact Development (LID)
Lee, Dong Chan ;
Ecology and Resilient Infrastructure, volume 3, issue 2, 2016, Pages 130~133
DOI : 10.17820/eri.2016.3.2.130
The increase in impervious surfaces due to urban development has caused a groundwater drawdown through the reduction of underground infiltration, flood disaster due to increased rainfall runoff and environmental pollution in higher pollutant concentrations of first flush rainwater. As an alternative to these problems, the needs of low impact development (LID) techniques is increasing in urban areas. In this study, the restoration efficiency of water cycle was assessed at a residential site development applied with the LID rainwater management system. The results of monitoring the water cycling showed that the efficiency of water cycle of LID rainwater management system was improved 41% more than that of conventional methods.
Application of Habitat Suitability Models for Assessing Climate Change Effects on Fish Distribution
Shim, Taeyong ; Bae, Eunhye ; Jung, Jinho ;
Ecology and Resilient Infrastructure, volume 3, issue 2, 2016, Pages 134~142
DOI : 10.17820/eri.2016.3.2.134
Temperature increase and precipitation changes caused by change alter aquatic environments including water quantity and quality that eventually affects the habitat of aquatic organisms. Such changes in habitat lead to changes in habitat suitability of the organisms, which eventually determines species distribution. Therefore, conventional habitat suitability models were investigated to evaluate habitat suitability changes of freshwater fish cause by change. Habitat suitability models can be divided into habitat-hydraulic (PHABSIM, CCHE2D, CASiMiR, RHABSIM, RHYHABSIM, and River2D) and habitat-physiologic (CLIMEX) models. Habitat-hydraulic models use hydraulic variables (velocity, depth, substrate) to assess habitat suitability, but lack the ability to evaluate the effect of water quality, including temperature. On the contrary, CLIMEX evaluates the physiological response against climatic variables, but lacks the ability to interpret the effects of physical habitat (hydraulic variables). A new concept of ecological habitat suitability modeling (EHSM) is proposed to overcome such limitations by combining the habitat-hydraulic model (PHABSIM) and the habitat-physiologic model (CLIMEX), which is able to evaluate the effect of more environmental variables than each conventional model. This model is expected to predict fish habitat suitability according to climate change more accurately.
Response of Vegetation to Shoreline Alternation in a Large Reservoir
Chu, Yun Soo ; Cho, Hyunsuk ; Cho, Kang-Hyun ;
Ecology and Resilient Infrastructure, volume 3, issue 2, 2016, Pages 143~151
DOI : 10.17820/eri.2016.3.2.143
Shoreline armoring is a globally used engineering strategy to prevent shoreline erosion along stream, lake and reservoir coastlines. Armoring alters the land-water interface and has the potential to affect shoreline vegetation by changing nearshore geomorphology, hydrology, sediment composition and water quality. We quantified the effects of the artificial disturbances and alternation of the land-water interface on the community structure and distribution of shoreline vegetation in a large reservoir, Uiam Reservoir, Korea. More than 60% of shorelines were disturbed by armoring with retaining wall of concrete block, riprap and gabion in the Uiam Reservoir. The results of detrended correspondence analysis showed that the vegetation structures of the shoreline modified by armoring changed from hydrophyte-dominated to hygrophyte-dominated ecosystems. The shoreline armoring caused the disruption of gradual continuity in the water-land interface and the biological invasion by alien plants. The changes in distribution area of shoreline vegetation showed that the area of hydrophytic vegetation decreased and that of hygrophytic vegetation increased from 2010 to 2013. In conclusion, the human disturbance such as armoring, road construction, recreation etc. could lead to terrestrialization, the loss of transverse continuity and biological invasion in the shoreline vegetation of the Reservoir Uiam. Our findings suggest that redesigning or removing shoreline armoring structures may benefit nearshore hydrophytic vegetation for the conservation of novel shoreline ecosystems.