33 results on '"Sung-Gwan Jung"'
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2. Effects of Perceived Park Environments on Park Satisfaction for Older Adults
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Sung-Gwan Jung, Woo-Sung Lee, and Young-Eun Park
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Gerontology ,Environmental perception ,Psychology - Published
- 2019
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3. Fungal proliferation and calcium accumulation in the orange slime ofCornus controversa
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Pan-Gi Kim, Sang-Hyun Koh, Oh Kyu Kwon, Ki Woo Kim, Sung-Gwan Jung, Jun Hyeong Kwon, Hae Rang Kim, Dong Geun Kim, Sung Hyun Joo, Ohkyung Kwon, Junhyung Park, and Kwan Ho Bae
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0106 biological sciences ,0301 basic medicine ,fungi ,chemistry.chemical_element ,Forestry ,Cornus controversa ,Orange (colour) ,Management, Monitoring, Policy and Law ,Calcium ,Biology ,biology.organism_classification ,01 natural sciences ,Yeast ,03 medical and health sciences ,030104 developmental biology ,chemistry ,Botany ,Calcium concentration ,Clamp connection ,010606 plant biology & botany - Abstract
A giant dogwood (Cornus controversa) was bleeding transparent sap that turned into gummy orange slime with a pungent odor on the bark in early April. The tree exudation originated from a branch wound that occurred during the most recent spring pruning. Scanning electron microscopy revealed the intact bark surface was irregularly undulating and covered with at least three types of epicuticular waxes: polygonal rodlets; polygonal tubules; and threads, whereas the dried orange plaques were covered with fungi, possibly the co-occurrence of yeast and filamentous forms. The yeast forms were ovoid, lemon- or club-shaped, and approximately 10 μm in length. Obviously constricted septa and clamp connections were rarely detected on the filamentous forms. No bacterial proliferation was detected on the orange slime. X-ray microanalysis revealed a steep increase in calcium concentration in the orange plaques compared with that in the intact bark. These results suggest that bark-dwelling dimorphic red yeasts may...
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- 2017
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4. The Influence of Pedestrian Environment Perception on Pedestrian Environment Satisfaction and Expected Health Promotion Effects - Focused on Park User for Health Promotion
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Cheol-Kyu Jang, Woo-Sung Lee, Sung-Gwan Jung, and Gyeong-Mi Lee
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030506 rehabilitation ,Engineering ,business.industry ,media_common.quotation_subject ,Applied psychology ,0211 other engineering and technologies ,Physical activity ,021107 urban & regional planning ,Advertising ,02 engineering and technology ,Pedestrian ,03 medical and health sciences ,Health promotion ,Perception ,0305 other medical science ,business ,Path analysis (statistics) ,media_common - Published
- 2016
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5. Influence of Physical Environment Perception on Park Use for Health Improvement - Focused on Neighborhood Parks in Suseong-gu, Daegu City
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Cheol-Kyu Jang, Woo-Sung Lee, and Sung-Gwan Jung
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Health improvement ,business.industry ,media_common.quotation_subject ,0211 other engineering and technologies ,Physical activity ,021107 urban & regional planning ,Advertising ,02 engineering and technology ,010501 environmental sciences ,Public relations ,01 natural sciences ,Geography ,Perception ,business ,0105 earth and related environmental sciences ,media_common - Published
- 2016
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6. Analyzing Relationship between Satellite-Based Plant Phenology and Temperature
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Sung-Gwan Jung, Kyung-Hun Park, and Chul-Hyun Choi
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Geography ,Phenology ,Satellite data ,Climatology ,Climate change scenario ,Growing season ,Climate change ,Satellite ,Ecosystem ,Plant phenology - Abstract
Climate change are known to have had enormous impacts on plant phenology and thus to have damage on other species which are interacted within ecosystem. In Korea, however, it is difficult to analyze the relationship between climate and phenology due to the limitation of measurement data of plant phenological records. In this study, to be effective analysis of SOG(start of growing season), we used phenological transition dates by using satellite data. Then, we identified the most influential variable in variation of SOG throughout the relationship between SOG and temperature factors. As a result, there is a strong correlation between the SOG and April temperature, TSOGmin(, 12days). This study is expected to be used for predicting plant phenological change using climate change scenario data.
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- 2016
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7. A Study on the Improvement of Sincheon Waterfront using the ISA
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Cheol-Kyu Jang, Ning Ning, Sung-Gwan Jung, and Seul-Gi Lee
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Engineering ,business.industry ,Satisfaction level ,media_common.quotation_subject ,Questionnaire ,Operations management ,Quality (business) ,Plan (drawing) ,business ,Investment (macroeconomics) ,Metropolitan area ,media_common - Abstract
The purpose of this study is to suggest an improvement plan for the waterfront by conducting an empirical analysis of users of the city`s waterfront. For this purpose, this study conducted a field investigation and questionnaire survey on the waterfront of Sincheon, Daegu Metropolitan City. Based on this, this study investigated the importance and satisfaction levels of environmental factors according to the purpose of using the waterfront and proposed the improvement plans through an ISA(Importance-Satisfaction Analysis). The analysis results are as follows. In the case of using the waterfront for exercise, `The division of bicycle trails and promenades` had the highest level of importance, while satisfaction level for items with `Convenience facilities such as vending machines, toilets and water fountains` was found to be the lowest. In the case of using the waterfront for leisure and relaxation, `Tree shade` had the highest level of importance, and the satisfaction level of the item on `Whether to hold events such as exhibitions` was lowest. The ISA results showed that when the waterfront was used for the purpose of exercise, leisure and relaxation, items such as `Convenience facilities such as vending machines, toilets and water fountains`, `Cleanliness of space and water quality` and `Water quality management` had a high level of importance, but had a low level of satisfaction, which suggests that they should be improved on a preferential basis. Next, items requiring intensive improvement for exercise purposes were `Tree shade`, `Rest facilities such as benches and pergolas`, `Width of bicycle trails and promenades` and `The division of bicycle trails and promenades`. Leisure and relaxation found that `Lighting facilities` require improvement. It is expected that if a river improvement project is implemented based on the above results, effective financial commitment and investment will be made.
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- 2016
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8. The Effect of Neighborhood Environmental Perception on Park Use for Health Improvement - The Case of Suseong-gu in Daegu City
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Woo-Sung Lee, Sung-Gwan Jung, and Young-Eun Park
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education.field_of_study ,Geography ,Health improvement ,business.industry ,Public transport ,Population ,Physical activity ,Advertising ,Pedestrian ,Environmental perception ,business ,education ,Socioeconomics - Abstract
The purpose of this study is to analyze the effect of neighborhood environmental perception on park use for health. The study area is focused on neighborhood parks in Suseong-gu, Daegu city. The analysis results are based on questionnaires of 303 respondents. According to the results, park use for health improvement was significantly associated with the perceptions of accessibility to a marketplace, availability of public transit, accessibility to the park, enough sidewalks, number of crosswalks, and athletic population. The probability of park use increased by 2.326 times as the satisfaction of accessibility to the park increased. Also, greater athletic population, fewer crosswalks, and more sidewalks lead to increase of park use by 1.701, 1.617, and 1.642 times, respectively. Therefore, it is important to increase the available neighborhood parks around residences and to develop exercise programs that people can use continuously in order to vitalize park use for health improvement. Also, it is necessary to improve the convenience of walking such as development of pedestrian streets or malls between residences and parks.
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- 2015
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9. An Analysis on the Determining Factors of Satisfaction for Environmental Improvement of Trails around Recreation Park - Focused on Suseong Recreation Park in Daegu
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Sung-Gwan Jung, Woo-Sung Lee, and Dong-Seok Kim
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Geography ,Environmental protection ,Environmental improvement ,Environmental planning ,Recreation - Published
- 2015
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10. An Analysis of Locational Characteristics and User Behavior of Neighborhood Parks in Central Business District
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Young-Sook Woo, Sung-Gwan Jung, and Chul-Hyun Choi
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Geography ,Regional science ,Urban regeneration ,Environmental planning ,Land price ,Central business district - Published
- 2015
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11. Analysis on Growth Characteristics of Landscape Trees in Apartment Complex
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Sung Gwan Jung, Ju Han You, Chul Hyun Choi, Jae Yun Shin, and Mun Hwa Jung
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Sorbus commixta ,Deciduous ,Pinus densiflora ,biology ,Abies koreana ,Zelkova serrata ,Chionanthus ,Botany ,Lagerstroemia indica ,Evergreen ,biology.organism_classification - Abstract
The purpose of this study is to offer the raw data for improving the method of landscape planting in apartment complex by objective surveying and analysing the growth ratio by type and ground planted in landscape tree. The results are as follows. In the survival ratio of tree, Pinus densiflora was the highest and Abies koreana was the lowest in evergreen tree. In case of deciduous tree, the species of the highest survival ratio were Diospyros kaki, Zelkova serrata, Prunus mume, Lagerstroemia indica and Ginkgo biloba. There showed that Sorbus commixta and Chaenomeles sinensis had the lowest survial ratio. In case of tree growth by types, Pinus strobus was the highest and Pinus densiflora var. globosa was the lowest among evergreen trees. Among deciduous trees, the growth ratio of Zelkova serrata was the highest, and the trees showed the lowest growth were Lagerstroemia indica, Magnolia denudata and Cornus officinalis. Pinus strobus, Cornus kousa, Ginkgo biloba, Chionanthus retusa and Acer palmatum were good growth in natural ground, and Zelkova serrata and Prunus armeniaca var. ansu were good in artificial ground. In the future, if you study the growth characteristics and shrubs that are excluded from the study of landscape trees in various locations are expected to derive objective data.
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- 2015
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12. The Effect of Environmental Perception in Neighborhood Park on User's Recognition of Health Improvement - Focusing on 8 Neighborhood Parks in Changwon City
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Young-Eun Park, Woo-Sung Lee, Kyunghun Park, and Sung-Gwan Jung
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Geography ,Health improvement ,Environmental perception ,Environmental planning - Published
- 2015
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13. A Study on User Behavior and Satisfaction with Neighborhood Parks within Walking Distance with Consideration for Interior and Exterior Environments - Focusing on the Case Study Hwarang and Gwanum Park, Daegu
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Dong-Hyun Kang, Seul-Gi Lee, and Sung-Gwan Jung
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Transport engineering ,Walking distance ,Geography ,User satisfaction ,Regression analysis ,Pedestrian ,Field survey ,Cartography ,GeneralLiterature_MISCELLANEOUS - Abstract
Recently, having neighborhood parks within walking distance has grown in importance. The purpose of this study is to analyze the effect of user satisfaction with neighborhood parks within walking distance considering interior and exterior environments. To do so, a field survey and GIS were conducted to construct data which were then compared with result of the analysed environment. Finally, amultiple regression analysis was conducted to confirm impact on user satisfaction of environment. By summarizing the study results, it was found that users of Hwarang Park exhibited a high level of satisfaction with `park facilities` and `safety of park use`. In the case of Gwanum Park, users exhibited a high level of satisfaction with `green space` and `amount of shade`. On the contrary, two park users exhibited low levels of satisfaction with `facilities for children` and `various attractions` within the parks. The pedestrian environment of Hwarang Park was rated higher than Gwanum Park within the park service area. User satisfaction was also rated higher than for Gwanum Park. However, two park users exhibited low levels of satisfaction with `various attractions` within the pedestrian environment. From the result regression analysis of the total satisfaction factors, `environment of access route`, `park facilities` and `space for walking` positively influenced park use satisfaction. It was found that improvement of the pedestrian environment would be more effective than the improvement of the internal environment on Hwarang Park. This study investigated correlation with the access road environment as well as the interior environment of the parks. The results of this research will be used to improve accessibility and availability for neighborhood parks within walking distance.
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- 2014
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14. Analysis of the MODIS-Based Vegetation Phenology Using the HANTS Algorithm
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Sung-Gwan Jung and Chul-Hyun Choi
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Geography ,Phenology ,Growing season ,Climate change ,Satellite ,Satellite imagery ,Enhanced vegetation index ,Vegetation Index ,Vegetation phenology ,Algorithm - Abstract
Vegetation phenology is the most important indicator of ecosystem response to climate change. Therefore it is necessary to continuously monitor forest phenology. This paper analyzes the phenological characteristics of forests in South Korea using the MODIS vegetation index with error from clouds or other sources removed using the HANTS algorithm. After using the HANTS algorithm to reduce the noise of the satellite-based vegetation index data, we were able to confirm that phenological transition dates varied strongly with altitudinal gradients. The dates of the start of the growing season, end of the growing season and the length of the growing season were estimated to vary by +0.71day/100m, -1.33day/100m and -2.04day/100m in needleleaf forests, +1.50day/100m, -1.54day/100m and -3.04day/100m in broadleaf forests, +1.39day/100m, -2.04day/100m and -3.43day/100m in mixed forests. We found a linear pattern of variation in response to altitudinal gradients that was related to air temperature. We also found that broadleaf forests are more sensitive to temperature changes compared to needleleaf forests.
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- 2014
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15. An Integrated Assessment of Green Environment on Urban Space
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Woo-Sung Lee, Kyung-Hun Park, Ju-Han You, and Sung-Gwan Jung
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Space planning ,Service (systems architecture) ,Landscape architecture ,Geography ,business.industry ,Environmental resource management ,Distribution (economics) ,Green environment ,Plan (drawing) ,business ,Master plan ,Urban space ,Environmental planning - Abstract
The purpose of this study is to assess the green environment on urban space and to suggest the sustainable green space planning. The study area is Dalseo-gu which has the biggest spatial imbalance of green space among 7 districts of Daegu. Three functions such as nature-ecological, environment-control, and usage function were 2014년 1월 7일 접수 Received on January 7, 2013 / 2014년 3월 21일 수정 Revised on March 21, 2014 / 2014년 3월 27일 심사완료 Accepted on March 27, 2014 * 이 논문은 2012학년도 대구대학교 신임교수학술연구비지원에 의한 논문(20120693)이며, 주저자의 박사학위논문 일부 를 수정ᆞ보완한 것임. 1 대구대학교 조경학과 Dept. of Landscape Architecture, Daegu University 2 경북대학교 조경학과 Dept. of Landscape Architecture, Kyungpook National University 3 창원대학교 환경공학과 Dept. of Environmental Engineering, Changwon National University 4 동국대학교 조경학과 Dept. of Landscape Architecture, Dongguk University ※ Corresponding Author E-mail : sgjung@knu.ac.kr An Integrated Assessment of Green Environment on Urban Space 16 established for assessing the green environment. For the assessment step of nature-ecological function,‘green connectivity’and‘animal movement’were used. Also,‘thermal environment’and‘temperature decrease’were utilized in terms of environment-control function and‘green space’s service supply’were utilized in terms of usage function. According to the results of integrated assessment, the green rich zone(Grade I) was 44.8% of total area in Dalseo and this zone was distributed along the southern forest of Mt. Ap and Mt. Biseul and the northern forest of Mt. Gung and Mt. Waryong. On the other hand, the green broken zone(Grade IV) was located in the residential areas of Gamsam and Jukjeon and the residential and industrial areas of Wolseong 1 and Jincheon and this zone was 5.5% of total area. The findings from this study can be used as the plan criteria for construction and distribution of green space in urban master plan.
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- 2014
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16. Validation of ENVI-met Model with In Situ Measurements Considering Spatial Characteristics of Land Use Types
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Kyunghun Park, Sung-Gwan Jung, and bonggeun song
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In situ ,Daytime ,Geography ,Meteorology ,Land use ,Microclimate ,Radiant energy ,Land cover ,Radiation ,Atmospheric sciences ,Wind speed - Abstract
This research measures and compares on-site net radiation energy, air temperature, wind speed, and surface temperature considering various spatial characteristics with a focus on land use types in urban areas in Changwon, Southern Gyeongsangnam-do, to analyze the accuracy of an ENVI-met model, which is an analysis program of microclimate. The on-site measurement was performed for three days in a mobile measurement: two days during the daytime and one day during the nighttime. The analysis using the ENVI-met model was also performed in the same time zone as the on-site measurement. The results indicated that the ENVI-met model showed higher net radiation than the on-site measurement by approximately during the daytime whereas the latter showed higher net radiation energy by approximately during the nighttime. The temperature was found to be much higher by approximately in the on-site measurement during both the daytime and nighttime. The on-site measurement also showed higher surface temperature than the ENVI-met by approximately . In terms of the wind speed, there was a significant difference between the results of the ENVI-met model and on-site measurement. As for the correlation between the results of the ENVI-met model and on-site measurement, the temperature showed significantly high correlation whereas the correlations for the net radiation energy, surface temperature, and wind speed were very low. These results appear to be affected by excessive or under estimation of solar and terrestrial radiation and climatic conditions of the surrounding areas and characteristics of land cover. Hence, these factors should be considered when applying these findings in urban and environment planning for improving the microclimate in urban areas.
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- 2014
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17. Development of Thermal Comfort Evaluation Map by the Land Cover in Yeongnam Region
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Chul-Hyun Choi, Sung-Gwan Jung, and Dong-Hyun Kang
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Climatic data ,Geography ,Sustainable city ,Urban planning ,Thermal comfort ,Climate change ,Physical geography ,Land cover ,Rural area ,Cartography - Abstract
The purpose of this study is to analyze the thermal comfort in Yeongnam area using climatic data and GIS data in order to determine regions necessary to improve thermal environment policies. The results of the calculated PET show that Daegu city is high and Bonghwa-gun is low compared to other regions. PET was compared with the typical classification according to regional characteristics. As a result, PET value of rural areas such as Changnyeong-gun, Haman-gun and Goryeong-gun was high but Green space was too low compared to other rural areas. Yeongnam area was classified according to the value of PET using cluster analysis. As a result, more low grade areas show that green space ratio was low and facility area was high. It is determined that there is a relationship between thermal comfort and land cover. The thermal comfort evaluation map in Yeongnam area will be useful for urban planning in order to establish a sustainable city in climate change.
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- 2014
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18. Evaluation of Streetscape by Street Planting Types using Dynamic Simulation - In the case of Ginkgo planted on the Dongdaegu-ro in Daegu
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Jae-Yun Shin and Sung-Gwan Jung
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Dynamic simulation ,Geography ,biology ,Ginkgo ,Sowing ,Forestry ,biology.organism_classification - Published
- 2014
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19. An Evaluation of Thermal Comfort on Urban Neighborhood Park for Improving Thermal Environment
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Bong-Geun Song, Chul-Hyun Choi, Woo-Sung Lee, Eun-Na Lim, and Sung-Gwan Jung
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Geography ,Landscape architecture ,business.industry ,Thermal ,Thermal comfort ,Regression analysis ,Relative humidity ,Scenario analysis ,business ,Civil engineering ,Wind speed ,Relative significance - Abstract
This study was conducted to analyze the thermal comfort in the urban neighborhood 2013년 11월 12일 접수 Received on November 12, 2013 / 2013년 12월 10일 수정 Revised on December 10, 2013 / 2013년 12월 26일 심사완료 Accepted on December 26, 2013 * 본 논문은 2013년 한국지리정보학회 추계학술대회에 발표된 것으로서 주저자의 석사학위논문의 일부를 수정·보완한 것임. 1 경북대학교 조경학과 Dept. of Landscape Architecture, Kyungpook National University 2 대구대학교 조경학과 Dept. of Landscape Architecture, Daegu University 3 창원대학교 환경공학과 Dept. of Environmental Engineering, Changwon National University ※ Corresponding Author E-mail : sgjung@knu.ac.kr An Evaluation of Thermal Comfort on Urban Neighborhood Park for Improving Thermal Environment 154 park and to obtain a plan for improvement of the thermal environment. First, in the result of the analysis of the distribution characteristics of the park's main thermal environment factors and differences among types of space, temperature, relative humidity, and wind speed did not show a clear difference spatially. However, the median radiant temperature showed great differences according to the openness of the space and the covering material. According to the evaluation of thermal comfort by types of space based on derived thermal environmental factors, the PMV value of the square was the highest at 4.39, the paths showed 2.58, greenery 1.90, and resting spaces 0.42. In the result of the PMV regression model established for the evaluation of the significance of these thermal environment factors that decide thermal comfort, it showed that the relative significance to the PMV was as follows in decreasing order: median radiant temperature(1.084), wind speed(-0.280), temperature(0.013), and relative humidity(-0.009). When conducting a scenario analysis on the areas with need for improvement in thermal environment, it was found that through reflectivity, color and the change in the physical properties of packing materials the thermal comfort felt by the body could be improved, and it is believed that through this the improvement plan can be established.
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- 2013
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20. Preference Factor Analysis of Greening Plan for Under Space of Elevated Rail Track Considering Cognitive Psychological Characteristics
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Chul-Hyun Choi, Jae-Yun Shin, and Sung-Gwan Jung
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Engineering ,Greening ,business.industry ,Applied psychology ,Cognition ,General Medicine ,Plan (drawing) ,Space (commercial competition) ,business ,Social psychology ,Preference - Published
- 2013
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21. Estimation of Danger Zone by Soil Erosion Using RUSLE Model in Gyeongju National Park1
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Ju-Han You, Sung-Gwan Jung, and Chul-Hyun Choi
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Estimation ,Hydrology ,Soil loss ,Geography ,Land cover ,Danger zone ,Natural resource - Published
- 2013
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22. Visual Characteristics of Light Rail Transit Pier for Improving Urban Landscape
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Eun-Na Lim, Sung-Gwan Jung, Jae-Yun Shin, and Kyung-Tae Kim
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Transport engineering ,Pier ,Geography ,business.industry ,Light rail transit ,Urban planning ,Urban sprawl ,business ,Urban landscape ,Landscape planning - Abstract
Urban sprawl has been the limits of traffic accommodate and the supply road. Thus, Light Rail Transit(LRT) has been proposed as the best alternative. Owing to landscape damage from construction of LRT, landscape planning should be considered seriously in the urban planning step. This paper therefore seeks to determine landscape improvement direction of LRT pier. First, the methods in this study shared landscape improvement direction type of LRT pier through previous studies such as planting of surface(30%, 60%, 90% planting of surface), graphic(character, commercial advertising, symbol), and surface treatment type(exposed concrete, white painting, pattern dies). Next, respondent evaluated 3D simulated landscape image accordingly shared types by preference and landscape adjectives using in streetscape evaluation. As a result, visual preference was the highest in planting type of surface and the lowest in the surface treatment type. Covering 60%(4.48) in planting type of surface was the highest. Because it is similar to the golden ratio considering the visual principle, we will need to take advantage through the result of this paper. Also, most landscape improvement direction which satisfied with significant level showed a positive effect from landscape improvement. Comprehensively based on these results, it suggests desirable landscape improvement direction of LRT pier in the city for solution of landscape inhibition problem.
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- 2013
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23. Analysis on Characteristics of Distribution of Specific Plants in Juwangsan National Park, Korea
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Sung-Gwan Jung, Jung-Keun Seo, and Ju-Han You
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In situ conservation ,Lilium cernuum ,Thalictrum ,biology ,Scopolia japonica ,ved/biology ,Eleutherococcus senticosus ,ved/biology.organism_classification_rank.species ,Botany ,Lilium distichum ,biology.organism_classification ,Aristolochia contorta ,Shrub - Abstract
This study was carried out to establish the conservation plan of specific plants by surveying and analyse the individuals and the environment of habitats on specific plants designated by Juwangsan national park office. The specific plants were 14 species including Berchemia berchemiaefolia, Hylotelephium ussuriense, Aristolochia manshuriensis, Lilium cernuum, Thalictrum coreanum, Exochorda serratifolia, Lilium distichum, Aristolochia contorta, Jeffersonia dubia, Eleutherococcus senticosus, Salix chaenomeloids, Eranthis stellata, Scopolia japonica, and Paeonia japonica. The habitats of specific plants were 40 sites including Berchemia berchemiaefolia of 11 sites, Hylotelephium ussuriense of 8 sites, Lilium cernuum and Thalictrum coreanum of each 3 sites, Exochorda serratifolia of 2 sites, and Lilium distichum, Aristolochia contorta, Jeffersonia dubia, Eleutherococcus senticosus, Salix chaenomeloids, Eranthis stellata, Scopolia japonica and Paeonia japonica of each 1 site. The altitude was the most in 300400 m. In direction, NW was the most, and it showed SW in that order. The slope angle was the most in 010%, and the cliff showed in that order. In the results of species composition by stratum layer, Berchemia berchemiaefolia had the most, 15 species, in tree layer. In shrub and herb layer, this had the most as 20 species and 29 species, too. The species that occupied the largest size was Salix chaenomeloids in 2,500 , and Jeffersonia dubia showed 1,500 in that order. The conservation of specific plants is to accomplish the ex situ and in situ conservation at the same time.Key words: Endangered plant, Rare plant, Endemic plant, Flora
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- 2013
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24. Sensibility Image and Preference Analysis of Street Tree Species using 3D Simulation - Focused on Tongdaeguro in Daegu Metropolitan City
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Chul-Hyun Choi, Sung-Gwan Jung, Kyung-Tae Kum, and Jae-Yun Shin
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Preference analysis ,Geography ,Street tree ,Sensibility ,3d simulation ,Metropolitan area ,Cartography - Published
- 2012
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25. A Quantitative Analysis of Air Purification Effectiveness on Urban Forest Considering the Spatial Distribution of Pollutant Concentration
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Woo-Sung Lee, Sung-Gwan Jung, and Chul-Hyun Choi
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Pollutant ,biology ,Environmental engineering ,Air pollution ,Plant community ,Atmospheric dispersion modeling ,medicine.disease_cause ,biology.organism_classification ,Spatial distribution ,Spatial heterogeneity ,Pinus densiflora ,Urban forest ,medicine ,Environmental science - Abstract
The purpose of this study is to estimate air purification effectiveness considering the improvement of its methods related atmospheric environment. The air purification effectiveness is estimated in Daegu, one out of Korean Metropolitan cities because air pollution is getting serious in a heavily urbanized area. The absorption of pollutants is calculated by considering spatial heterogeneity that was not considered previous studies and the spatial resolution of air dispersion modeling is also improved by kriging method. According to the type and distribution of urban forest, total 26 kinds of plant communities were distributed with Pinus densiflora community, Pinus densiflora-Quercus mongolica community, Pinus densiflora-Quercus acutissima community and other kinds of communities in the study area. In the results of estimating the absorption amount for identification of the air purification effectiveness on urban forest, the annual absorption amount was total 108,155t/yr. Also, the annual absorption amounts of and were total 183.5 ton and 410.2 ton respectively. The findings from this study can confirm the differences of pollutant absorption by concentration that could not identify if spatial distribution of pollutant concentration had not been considered.
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- 2012
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26. Evaluating the Imbalance of Green Space and Establishing its Management Zone Using Spatial Analysis - Focused on the Use of Green Space
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Sung-Gwan Jung and Woo-Sung Lee
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education.field_of_study ,Geography ,Operations research ,Service (economics) ,media_common.quotation_subject ,Population ,Operations management ,Space (commercial competition) ,education ,Metropolitan area ,Analysis method ,media_common - Abstract
The purpose of this study is to evaluate the imbalance of green space using various spatial analysis methods and to establish the management zone for green space with service supply in the aspect of its use in Daegu. The total green space of Daegu is 48,936.1ha which is the second among 7 metropolitan cities of Korea. According to the imbalance analysis of green space, the Gini`s coefficient based on the area was not high, on the other hand, the Gini`s coefficient based on the population was high by above 0.6. According to an evaluation of service supply of green space in Dalseo-gu, the area within about 100m around large green space was supplied with green spaces of above /pop. On the other hand, the area such as Sangin, Jukjeon, and Yongsan was not almost supplied with green space. Finally, `Rich zone`, `Fair zone`, `Poor zone`, and Broken zone` could be established based on the service supply for the management direction of green space. The findings from this study can be used as the basic data for selecting the construction priority of new green spaces.
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- 2012
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27. An Evaluation of Environmental-Control Function on Forest Using GIS
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Sung-Gwan Jung and Woo-Sung Lee
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business.industry ,media_common.quotation_subject ,Control (management) ,Environmental resource management ,Analytic hierarchy process ,Control function ,Landscape architecture ,Brainstorming ,Urban planning ,Environmental science ,Systematic process ,business ,Function (engineering) ,Environmental planning ,media_common - Abstract
The purpose of this study is to establish the evaluation model through the systematic process of selecting the indicators and to evaluate the environmental-control function on forest using GIS in Deagu for the sustainable forest planning. The 35 indicators as basic items were selected by literature review and those were squeezed into the 29 2011년 9월 27일 접수 Received on September 27, 2011 / 2011년 10월 24일 수정 Revised on October 24, 2011 / 2011년 10월 31일 심사완료 Accepted on October 31, 2011 1 텍사스 A&M 대학교 조경 . 도시계획학과 Dept. of Landscape Architecture and Urban Planning, Texas A&M University 2 경북대학교 조경학과 Dept. of Landscape Architecture, Kyungpook National University ※ 연락저자 E-mail : sgjung@knu.ac.kr GIS를 활용한 산림녹지의 환경조절적 기능 평가/이우성.정성관 103 indicators through expert brainstorming. Also, the 8 indicators to evaluate environmental-control function were selected by the first survey and the 5 final indicators such as carbon sink, temperature decrease, wind formation, water circulation, air purification were determined by MCB analysis using the second survey. The evaluation model was established through the weight of each indicator by AHP analysis using the third survey. According to the result of evaluating the environmental-control function on forest, the functions around the top area of Mt. Ap, Mt. Biseul, Mt. Palgong had more than 66 scores. On the other hand, the functions around Mt. Waryong and forest of Chilgok in Buk-gu had less than 40 scores. It is necessary to improve the function through the sustainable restoration and management in case of forest that the environmental-control function was lower. Furthermore, these results will be able to be utilized as basic data in order to establish the preservation area and control development area at the urban, environmental, and forest planning.
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- 2011
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28. Evaluation of Supply Adequacy of The Urban Park by Spatial Imbalance Analysis
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Woo-Sung Lee, Hyoung-Jun Kim, and Sung-Gwan Jung
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Urban park ,business.industry ,media_common.quotation_subject ,Environmental resource management ,Plan (drawing) ,Master plan ,Grid ,Geography ,Sustainable city ,Service (economics) ,Selection method ,business ,Environmental planning ,media_common - Abstract
Recently, the location of urban parks has become more important in terms of the construction of an environment-friendly, sustainable city. To build a refined and desirable urban park, it is necessary to have precise understanding on the evaluation of supply adequacy and selection method for its location. However, there have been few studies on the spatial imbalance and location plan of urban parks. Therefore, this study has attempted to evaluate the spatial imbalance of urban parks in Hwanggeum-dong, Suseong-gu in Daegu and propose a policy suggestion to solve the imbalance. According to the analysis, Hwanggeum 1-dong and 2-dong recorded 943.08/GRID and 380.61/GRID, respectively, in terms of legal requirements for urban parks and 406,730.80 and 157,086.40 in terms of total service supply from two neighborhood parks and four children`s parks. According to the evaluation of optimal supply area across Hwanggeum-dong, Hwanggeum 1-dong and 2-dong recorded 12.3% and 51.5%, respectively. In an evaluation of the supply adequacy of urban parks, the areas described as `very satisfying` were 20.5% and 5.4% in Hwanggeum 1-dong and 2-dong, respectively. On the contrary, the areas described as `very dissatisfying` accounted for 27.6% and 10.8%, respectively, in the two regions. It appears that additional parks should be developed in the inferior areas in terms of urban parks in consideration of various factors such as area and shape. The results of the supply adequacy evaluation will be used as a tool to figure out and solve problems in the location of urban parks and as basic data for a master plan to build an environment-friendly, sustainable city.
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- 2011
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29. Evaluation of Seasonal Landscape Images and Preference of Streetscapes - Focusing on Street of Prunus Species
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Kyung-Tae Kim, Sung-Gwan Jung, Woo-Sung Lee, and Jae-Yun Shin
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Geography ,Similarity (network science) ,Normal mapping ,Cartography ,Preference ,Spatial planning - Abstract
The purpose of this study is to create a landscape image that considers the selection of techniques that can enhance landscape reproduction in streetscape evaluation using 3 dimensional simulations and to evaluate ways to verify similarities and the psychological changes on the part of users by season. In the comparison of technique, the Low(apply normal map) technique was selected for the natural representation of trees in a near and middle view and the Plane technique was selected for the distant view. As the result of the verification, all indicators of physical similarity were evaluated over 4.50 points and most indicators of psychological similarity were found to have no difference except for indicators of `disordered orderly` and `dirty - clean`. According to the results of analyzing the landscape simulation by season, images of `bright`, `beautiful`, and `static`, etc., were evaluated high for the spring streetscape. The images of `open`, `refresh`, and `animate` appeared high in summer and images of `warm` and `dark` were found to be high in fall. On the other hand, all images were evaluated as low except for the `orderly` image. In the preference of streetscape by season, summer and spring were highly preferred at 5.01 and 4.98 with winter as the lowest at 3.48. As the results of the analysis of preference factor, the spring streetscape was found to be a major influence in preference by 0.540 in `aesthetics`. In the case of summer, `order` was found to be high at 0.417 while influences in preference included `variety` and `aesthetics` in fall and `variety`, `aesthetics`, and `order` in winter. A determination of suitable spatial planning using a comparative analysis of various city streets will be enabled through the methods of this study.
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- 2011
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30. Establishment and Application of Landscape Control Point Selection Method for Landscape Assessment of Urban Development Projects
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Cheol-Kyu Jang, Kyung-Tae Kim, and Sung-Gwan Jung
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Engineering ,Operations research ,business.industry ,media_common.quotation_subject ,Transport engineering ,Urban planning ,Landscape assessment ,Residence ,Selection method ,Objectivity (science) ,business ,Publicity ,Know-how ,media_common ,Valuation (finance) - Abstract
This study furnishes basis data for plan foundation and proper valuation of view by presenting objective and concrete selection standards and ways of Landscape Control Point(LCP) on valuation of development projects. To sum up the results of study, it establishes the prospect, publicity and direction of view as a selection standard LCP on precedent studies. The prospect, which includes visual range, direction of view, geographical features, and visibility, sets up as a valuation basis picking out the available places which have alterations according to direction and distance in practice. In the case of publicity, to select the place as there presentative area where public activities often happen than others, thirteen evaluation indexes including administration facilities, educational facilities, commercial facilities and so on. And variation of landscape is set up as an assessment index to know how much the land has changed from the beginning to the end of development. To apply the selection standards to sample places, the preliminary LCP is founded by analyzing both the prospect and published; a series of courses for selecting the final LCP is founded by analyzing the preliminary LCP and variableness of landscape on a basic of placed which have many alterations of view. At last, in the case of a selection system for LCP, the preliminary LCP is founded by analyzing both the prospect and publicity; a series of courses for selecting the final LCP is found by analyzing the preliminary LCP and variableness of landscape. Applying selection standards and the assessment index to the Sam-deok 3 residence improvement area, in the case of prospect, the southern distant view area has the largest extent. Next, the results of the assessment using the system of publicity show that a five-lane road is taking up the largest area. Hence, a total of 48 preliminary LCPs are set up by analyzing both the prospect and publicity. The results of analyzing landscape variation, one of the valuation indexes, show that Sam-deok dong around the post office has the highest rate of variation at 28.07%. Finally, three LCPs in each part, which are close range, middle range and distance view, are selected; thus, a total of nine LCPs are selected. The selected LCPs that go through a series of practical courses like a GIS program have a lot of professional opinions and are expected to secure objectivity of landscape assessment.
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- 2011
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31. Developing the Evaluation Indicator of Pedestrian Environment for Promoting Walking Activity
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Kyung-Hun Park, Ju-Han You, Sung-Gwan Jung, and Jong-Wan Park
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Transport engineering ,Urban form ,Promotion (rank) ,Urban planning ,Computer science ,Walkability ,media_common.quotation_subject ,Walking (activity) ,Pedestrian facilities ,Regression analysis ,Pedestrian ,media_common - Abstract
The promotion of walking and bicycling is recently a hot topic in the urban planning and design field. Many planners have already examined the many components of the land use-transportation connection and built environment-physical activity link. A rapidly growing area of urban form research is to measure the level of walk-ability in urban environments. With this background, this research conducted a preliminary study to develop the evaluation indicators of pedestrian environments. Based on the literature reviews on walking or pedestrian environments, we proposed the seventeen indicators related with pedestrian facilities, road attributes and walking environment. We also performed a questionary survey to evaluate the satisfaction of their neighborhood pedestrian environments for 302 randomly selected adults living in the City of Changwon, Gyeongsangnam-do. Finally, this research provided the valid model to evaluate the effects of physical environmental factors on the walking satisfaction using factor analysis and multiple regression analysis.
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- 2007
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32. An Analysis on Water Pollution Degree by the Watershed considering Landcover Types in the Mid-Nakdong River
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Ju-Han You, Sung-Gwan Jung, Woo-Sung Lee, and Kyung-Hun Park
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Hydrology ,geography ,geography.geographical_feature_category ,Watershed ,business.industry ,Urban area ,Metropolitan area ,Watershed management ,Agriculture ,Environmental science ,business ,Water pollution ,Time of concentration ,Riparian zone - Abstract
The purpose of this study is to evaluate the water pollution degree in the Mid-Nakdong River watershed regarding to landcover types using GIS method. As a result of landcover classification, rate of urban appeared highly on Daegu Metropolitan city. Also, rate of agriculture showed highly in the riparian zones of the Nakdong and Guemho River and rate of forest appeared highly in the borders of the study area. To identify the groups of watershed with similar landcover patterns using the Cluster Analysis. According to the cluster analysis, the fifty sub-watersheds were grouped in three clusters, 'Urban watershed', 'Agriculture watershed', 'Forest watershed'. The proportion of urban area in each cluster had a positive correlation with water pollution degree. Otherwise, the proportion of agriculture in the Agriculture watershed had a high positive correlation with water pollution degree. Therefore, it is necessary to estimate environmental capacity of water duality considering ecological and environmental characteristics of watershed ecosystem and expand water duality monitoring systems to small stream.
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- 2006
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33. Analysis of Landscape Structure Using Satellite Data and Landscape Index in the Keumho River Watershed, Korea
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Morihiro Aizaki, Kazuo Matsushige, Kyunghun Park, and Sung-Gwan Jung
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Index (economics) ,Geography ,Land use ,Landscape structure ,Ecology ,Agriculture ,business.industry ,Ecotope ,River watershed ,Land cover ,Physical geography ,Landscape ecology ,business - Abstract
This research tested the applicability of landscape indices for monitoring landscapes in a heavily disturbed environment. Landscape indices were calculated from land cover maps based on Landsat TM data using FRAGSTATS. According to the results, considerable land cover change occurred from 1985 to 1999 due to economic development. In the assessment of landscape structure, forest and agriculture patch types were progressively subdivided into smaller, morphologically simpler as a result of human land use activities. Diversity and configuration of landscape patterns increased, especially in the patches adjacent to forest edge and agriculture. Future research will be directed towards the detection of correlations between landscape patterns and specific environmental and socioeconomic landscape functions.
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- 2004
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