• Journal of the Korean Society of Environmental Restoration Technology
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• v.16 no.1
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• pp.131-145
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• 2013

The purposes of this research are : to analyze biotop type and carry out conservation value assessment in study areas, Daegu Science Park national industrial complex; to supply basic data for the landscape ecological planning; and to improve the application of assessment model with the development of Biotop Value Assessment Tool (B-VAT). The result is as follows. First of all, the field survey showed 434 species of flora and 220 species of insecta. According to the result of biotop type analysis in the biotop classification system with field survey, 13 biotope groups and 63 biotope types were classified. In the map of biotop type classification, readjusted farmland biotop(FA) was prevalent and forest biotop(E) was shown to the southeast side of the site. Next, according to the first assessment with B-VAT, total 19 biotop types including natural river(BA) with abundant plants had I grade and total 16 biotop types such as vegetable garden adjacent to river(BC) had V grade. In terms of the second assessment, we analyzed total 30 areas, total 82 areas, respectively, which had special meaning for the conservation of species and biotop(1a, 1b) and which had meaning for the conservation of species and biotop(2a, 2b, 2c). This research will be a basic data, which can solve the damage problem systematically and control it landscape-friendly with biotop classification and assessment which we developed. In particular, we expect that biotop value assessment tool(B-VAT) with GIS will be a great contribution to popularity compared with the value model by complicated algorism such as adding-matrix, weight and equal distribution. In addition, this will save the time and improve the accuracy for hand-counting.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.13 no.6
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• pp.13-24
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• 2010

Beopseongpo has been one of the most thriving ports of the Jeolla region since the Goryeo Dynasty (918-1392). During the time of King Seongjong (r. 1469-1494) of Choseon Dynasty, a navy garrison had been deployed and the port was named Beopseongjin, as recorded in the 1485 edition of Grand code for state administration (Gyeongguk daejeon). Dangsan forests and Bibo forests have been maintained by local residents since hundreds of years ago. Dangsan forests have been applied to the scale of government and public offices. The objectives of this study were to understand the characteristics of the "Wooded Fortress of Beopseongjin in Yeonggwang" as "Scenic Site No. 22", and to investigate the conservational problem of the wooded fortress of Beopseongjin and seashore. The "Wooded fortress of Beopseongjin in Yeonggwang" consists of a Dangsan forest and two Bibo forests. But, the presence of the Dangsan forest has not been well known to the public. Although the wooded fortress has been somewhat disturbed by cultural activities, the Dangsan rituals have been held until the present every January 15 by lunar calendar. On the other hand, the seashore in front of Beopseongpo plays an important role as a scenic view. It was one of the reason that the "Wooded fortress of Beopseongjin in Yeonggwang" had been designated as a national cultural property of "Scenic Sites". However, the sandbar was reclaimed in 2009 to build commercial buildings. An integrated plan should be prepared to conserve the landscape of "Wooded fortress of Beopseongjin in Yeonggwang", which requires close partnership among local residents, experts, and local government. At present, four new buildings have been built. Although we have lost the sandbar, it is indispensable to secure the visibility of Wooded Fortress of Beopseongjin at the entrance of the village.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.22 no.5
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• pp.57-67
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• 2019

Water-Birds are the birds that occupy the highest proportion in Korea, inland wetlands and reservoirs provide them with a good environment as habitat, but their habitats have been losing because of thoughtless development. Therefore, artificial plant islands in reservoirs are important for improving habitat environment and providing food resources. However, there are no research and standards on the built and management of artificial plant islands. So this study is to find out the density of bird using artificial plant island as habitat through monitoring using UAV focus on the Cheonho-reservoirs located in Seobuk-gu, Cheonan-si(Middle Chungcheong Province). Further, the correlation analysis with environmental factors was conducted to determine the effect of artificial plant islands as habitats for water-birds. The supervised classification of the three-time images taken by the drone identified 244 white-billed ducks and 46 mandarin ducks. The utilization rate was different for each photographed date, and more individuals were identified in wet artificial plant islands than dry ones. As a result of analyzing the utilization follow environmental factors, the distance from the trail showed a significant correlation, and the other factors did not have a statistically significant effect. This study is the first case of the UAV monitoring method of the water-birds using artificial plant islands in the reservoir, and can be used as the basic data for the built and management.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.34 no.2
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• pp.75-86
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• 2016

The area surrounding Segeomjeong, one of the famous pavilions near the capital in the Joseon Dynasty, was a favorite place of scholars to visit and enjoy the beautiful natural landscape. The recreational culture of Segeomjeong area in traditional societies representing the prototype of urban tourism in modern society indicates cultural landscape which is a combination of the surrounding landscape and human activities. At this point, the purpose of this research on Saegumjeong area as a recreation place was to examine recreational activities and landscape elements before restoration. Through the relevant historical literature, there were several recreational activities such as traveling to enjoy scenery, taking a view of stream with waterfalls, doing creative writing of reciting poems and drawing about the greatness of nature and gathering on a broad and flat rock or Tangchundae. Also, the main landscape elements-such as Saegumjeong, stream, broad and flat rocks, pine trees, Tangchundae Peak, and mountains-were extracted through paintings of Saegumjeong drawn before restoration. Consequently, in this study, it was confirmed that the Segeomjeong area was the spot that scholars visited consistently, the center for travel, and the place for communication between scholars and national banquets. This study is significant, in that it drew conclusions on the cultural landscape of the Korean people through the ages and helped to discover the meaning and value of cultural landscape of recreation places based on Korean natural characteristics and cultural climate.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.18 no.3
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• pp.39-50
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• 2015

This research selected Daegu Metropolitan City representing a combination of natural space and urban space for this case study. To achieve this, a prerequisite was to set up an optimal block size to evaluate landscape diversity of the research site by using a RPR-Area Curve. Further, landscape diversity evaluation was conducted based on land cover map by using FRAGSTATS to analyze spatio-temporal changes. Notably, this research regarded it as the most significant to set forth criteria in order to apply landscape diversity to the development plans of the newtown and outskirt of a city under high pressure development. Results derived from this research are summarized as follows. According to the results derived from establishing the optimal block size, a size about $2km^2$ was analyzed to measure landscape diversity of the research site. Also, according to the results derived from land diversity evaluation based on land cover map, land diversity was highly measured around urban stream such as Nakdong River and Geumho River, and in particular, the value of landscape diversity was measured considerably high around the urban parks. Results derived from analysis on spatio-temporal changes of land diversity demonstrated that a certain level of urban development exerted a positive effect on an increase in land diversity, but consistent urban development lowered a value of landscape diversity. Results derived from regression analysis to set forth the optimal urban space showed that an urban area of a space about $2km^2$ exerted a positive effect at a rate of about 0~43.3% and a negative effect at a rate about 43.3~100%. In conclusion, the results of this research are considered to provide important basic data for future urban and landscape planning. Nonetheless, as only the layout on the 2D plane was analyzed in this research, further research in future is required to complexly consider diverse factors such as height of structure and change in visible real area arising from geographical features.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.28 no.4
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• pp.64-75
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• 2010

Gyeongju, with its thousand-year-old history of the Silla Dynasty, is an impressive historical city where beautiful nature of mountains in the background and rivers in its front is getting along with the city landscape. The historic landscape of Gyeongju is divided into three groups: the old town, the ruins preservation region in the southeast of old towns, and the natural landscape region surrounding these regions. The old town region shows a common landscape of which general small cities in Korea may have, while its surroundings display the overlaps of natural and historic landscapes. The special city landscape is presented only in Gyeongju. Nevertheless, the northern area of the old town was built based on the concept of new towns without any height restriction of buildings, damaging the historic landscape of Gyeongju. It is misjudgment by interpreting the cultural heritage as the individual artifact rather than the continuous historic landscape. Since the 1970s when rapid industrialization and urbanization appeared along with the comprehensive development for Gyeongju tourism, the historic landscape has been slowly damaged. There were not enough financial and political supports from the central government, because the project for Gyeongju tourism was focused on the investment on the tourist industry. Now, in order to preserve the historical city like Gyeongju which represents the culture of Korea, the central government should actively engage in its protection. Policies of the central government should be focused on educating people that the historical restoration of Gyeongju is a way of recovering the national pride, and drawing the agreement of people. For its accomplishment, the government should change its policy from economy-oriented to culture-oriented. That is, the cultural policy should be emphasized.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.21 no.6
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• pp.95-113
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• 2018

We studied the change of wetland vegetation structure to understand ecological restoration process of wetlands through the field survey of ecological restoration projects in Incheon, Iksan and Busan. We compared the vegetation plan at the time of planted with the results of the vegetation monitoring in 2018, and analyzed the changes in wetland vegetation structure. Based on results, we attempted to understand the restoration process of those wetlands and discuss the management measures for sustainable wetland restoration. As a result, in the Incheon Yeonhee restoration wetland, the number of plant species was increased, from 18 species in 2016 to 29 in 2018. The dominant species, Myriophyllum verticillatum, covered the wetland most and its occupied area was increased. On the other hand, the distribution area of the planted emergent hydrophytes was reduced. The area of open water decreased from 71.7% in 2016 to 48.8% in 2018. In Busan Igidae restoration wetland, the number of plant species was increased, from 6 species in 2014 to 31 in 2018. The dominant species was Myriophyllum verticillatum and its occupied area was increased. The area of floating plant communities that planned has decreased. The open water area decreased from 83.9% in 2014 to 31.8% in 2018. In Iksan Sorasan restoration wetland, the number of plant species was increased, from 13 species in 2016 to 36 in 2018. The dominant species was Phragmites communis Trin. and its occupied area was increased. The other planted species showed a tendency to be decreased by Phragmites communis Trin. and its terrestrialization. The open water area decreased from 86.6% in 2016 to 6.7% in 2018. These results suggest that wetlands should be managed by considering the change of vegetation structure and open water areas based on the following succession process, because it affects the habitat suitability of wetland organisms and biodiversity as well. Thus, the continuous monitoring for the ecological structure of restored wetland is important, and it could be possible step to develop sustainable wetland ecological restoration model.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.9 no.1
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• pp.41-54
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• 2006

In case of leaving artificial slopes resulting from large-scale constructions, there may be secondary damage caused by soil loss due to erosion and collapse. Furthermore, slope-restoring constructions have a few problems such as monotonous landscape and difficult succession of secondary vegetation due to reckless use of exotic grass, despite attaining the initial purpose of revegetation. To settle this problem, selected plants deemed to be proper for revegetation were used on one of thin vegetation base methods, CODRA SYSTEM, and made seeding mixture experimental plots considering germination rates differing in each season. Native herbs, native shrubs and exotic herbs contents were increased by 30% and 50% respectively, centered on seeding quantity(30g/$m^2$) used as design standard in the seed spray method, in order to figure out proper quantity for revegetation in each season.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.12 no.5
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• pp.28-41
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• 2009

Because fire has significant impacts on fauna and flora in forest ecosystems, as well as socioeconomic influences to local community, it has been an important field of study for decades. One of the most common ways to reduce fire risk is to enhance fire-resilience of forest through fuel treatments including thinning and prescribed burning. Since fuel treatment can't be practiced over all forested areas, appropriate and effective strategies are needed. The present study aims to look at the relationship between spatial characteristics of forest structure measured with landscape pattern metrics and burn severity to provide guidelines for effective fuel treatments. Samchuck fire was selected for the study, and 232 grids covering the study areas were generated, and the grid size was 1km. The burn severity is measured with dNBR derived from satellite imagery, and spatial characteristics of forest structure were measured using FRAGSTATS for both landscape and class levels for each 1km grid. The results of this study strongly indicated that heterogeneity in composition and configuration of forests may significantly reduce burn severity. By enhancing heterogeneity of forests, fuel treatments for fire-resilience forest could be more effective.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.6 no.3
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• pp.56-68
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• 2003

The main purpose of this study was to verify the shore margin protection effect of the root system of Salix gracilistyla Miq. developed from direct sticking cuttings on wetland, through the measurement of root growth and comparison of soil slaking rate depending on the planting method applied to shore-marginal slope. Comparison of growth rate and soil dispersion rate was made between five planted slope and one naked slope. The planting methods applied to the planted slope were (a) horizontally layed burying of stick(45cm) bundle (b) horizontally layed covering the slope with sticks (c) horizontally fencing with normal cuttings(20cm) (d) elected sticking of normal cutting at equal distances (e) random scattering short cuttings(3-4cm). As results, the most effective planting method was horizontally layed burying, and in order to increase its efficiency scattering the live stem chips in 2-3cm on the slope is recommended. The growth of root was negatively regressive to the distance from water floor.