• Journal of the Korean Institute of Landscape Architecture
• /
• v.27 no.1
• /
• pp.39-53
• /
• 1999

This study quantified carbon uptake and emissions in urban landscape, and the role of urban greenspace in atmospheric carbon reduction for several cities of Chuncheon and Kangleung in Kangwon province. Mean carbon storage by trees and shrubs was 26.0 t (mertric tons)/ha in Chuncheon and 46.7 t/ha in Kangleung for natural lands, and ranged from 4.7 to 6.3 t/ha for urban lands (all land use types except natural and agricultural lands) in both cities. Mean annual carbon uptake by trees and shrubs ranged from 1.60 to 1.71 t/ha/yr for natural lands, and from 0.56 to 0.71 t/ha/yr for urban lands. There was no significant difference (95% confidence level) between the two cities in the carbon storage and annual carbon uptake per ha, except the carbon storage for natural lands. Organic carbon storage in soils (to a depth of 60 cm) of Chuncheon average 24.8 t/ha for urban lands and 31.6 t/ha for natural lands, 1.3 times greater than for urban lands. Annual carbon accumulation in soils was 1.3 t/hr/yr for natural lands of the study cities. Annual per capita carbon emissions from fossil fuel consumption were 1.3 t/yr in Chunceon and 1.8 t/yr in Kangleung. The principal carbon release in urban landscapes was from transport and industry. Total carbon storage by urban greenspace (trees, shrubs, and soils) equaled 66% of total carbon emissions in Chuncheon and 101% in Kangleung. Carbon uptake by urban greenspace annually offset total carbon emissions by approximately 4% in the study cities. Thus, urban greenspace played a partial important role in reducing atmospheric $CO_2$ concentrations. To increase $CO_2$ uptake and storage by urban greenspace, suggested are conservation of natural lands, minimization of hard surfaces and more plantings, selection of tree species with high growth rate, and proper management for longer healthy tree growth.

• Journal of the Economic Geographical Society of Korea
• /
• v.10 no.3
• /
• pp.319-331
• /
• 2007

Nowadays, urbanized area expands its boundary, and distribution of urbanized area is gradually transformed into more complicated pattern. In Korea, SMA(Seoul Metropolitan Area) has outstanding urbanized area since 1960. But it is ambiguous whether urban distribution is clustered or dispersed. That is to say, it is difficult to understand spatial distribution pattern of urbanized area, although urbanized area has grown gradually. This study aims to show the way in which expansions of urbanized area impact on spatial distribution pattern of urbanized area. We use GIS analysis based on raster dataset, quadrat analysis, and nearest neighbor analysis to know distribution pattern of urbanized area in time-series urban growth. Experiments show that cohesion of SMA's urbanized area had increased to the early 1980s, but has decreased from the middle 1980s. Also, urban growth of SMA has been characterized not by spillover growth but by leapfrogging growth and road-influenced growth since the middle 1980s.

• Journal of the Korean Society of Environmental Restoration Technology
• /
• v.22 no.2
• /
• pp.49-57
• /
• 2019

The street trees increase the liveability of cities by reducing stormwater runoff, improving air quality, storing carbon, providing shade, and ameliorating the urban heat-island effect. In this study, the health status of street trees in Suwon was evaluated, and the factors affecting the growth of the trees were also derived. In order to evaluate the growth and health of street trees, field survey was carried out on a total of 125 trees in 25 sections of the Deogyeong-daero where is through the city. During the field survey, the following items were examined: Street trees health status (i.e. species, height, DBH (diameter at breast height), planting types, vigor, etc.), soil factors (i.e. soil temperature, humidity, pH, hardness, etc.), and environmental factors (i.e. landuse, road width, etc.). As the results of field survey, the main species of the street trees was Zelkova serrata, which was healthy in most of the sections. The factors such as planting types, soil temperatures, tree root cover, road extension, distance from the road were derived to affect the growth and health of street trees, and the differences were significant. The results of this study were derived the following conclusions for vigorous street trees: First, it is important to install and maintain the protection facilities like tree root cover for the growth of trees. Second, it is necessary to discuss how to plant multiple trees in narrow spaces like a street green space. Third, it is important to provide appropriate soil conditions continuously for growth of threes. Finally, it should be utilized as a mitigation measure of urban heat island effects.

• Journal of the Korean association of regional geographers
• /
• v.9 no.1
• /
• pp.24-34
• /
• 2003

The purposes of this paper are to analysis the characteristics of urban structure and to provide the strategies of urban restructuring in Incheon. While old urban center has tended to decline, urban central functions have concentrated towards new suburban centers, outer regions of Incheon. The urbanization of Incheon to outer regions is continuing, together with the population growth. The basic directions of urban restructuring are the formation of network urban structure, the establishment of development designation district, the formation of development, and axises for urban regeneration. It is also suggested that the systematic strategies of urban restructuring need to consider the district development for globalization, the formation of new growth pole and development axises, the establishment of special theme street, and development to network city for global city.

• Journal of the Korean Association of Geographic Information Studies
• /
• v.6 no.3
• /
• pp.83-94
• /
• 2003

All the urban planning process require land use informations, which should be obtained after through intensive investigation and accurate analysis about the past and current situations and conditions of a city. Until now, the generation of land use informations from remotely sensed imagery has had many limitation because of its spatial resolution. It is now expected that the availability of high resolution satellite imagery whose spatial resolution less than 10m will reduce these limitations. For the purpose of urban growth monitoring we must first establish a urban land use classification nomenclature. In this study, we would like to establish a land use nomenclature for land use classification using remotely sensed data, especially using KOMPSAT EOC imagery.

• Journal of Korea Planning Association
• /
• v.54 no.3
• /
• pp.63-74
• /
• 2019

Korean government has implemented policies to strengthen the competitiveness of small and medium sized cities. However, since it is often difficult to enhance the competitiveness through individual projects, many local governments in metropolitan areas are working together to pursue local growth. On the other hand, small and medium sized cities that are not included in metropolitan areas due to their spatial limitations have difficulties in implementing effective growth policies. Given this background, the purpose of this study is to identify the functional correlation based on urban interactions and develop functional econometric model for the economic growth of small and medium sized cities. This study uses spatial econometrics models and functional weight matrix to identify the effects of functional networks on small and medium sized cities. The results show the effect of functional networks on the growth of small and medium sized cities and provide policy implications for regional spatial planning that addresses effective management of small and medium sized cities.

• Journal of the Korean Geographical Society
• /
• v.35 no.4
• /
• pp.621-639
• /
• 2000

도시는 산업혁명 이후 급속히 발달하기 시작한 인간의 대표적인 정주공간으로, 산업활동의 집중, 도시로의 인구유입으로 공간적인 범위가 확대되어 가고 있다. 급속한 도시성장은 환경을 악화시키고 있으며, 이에 따른 온실효과, 대기오염의 증가 등은 심각한 도시문제로 떠오르고 있다. 지속 가능한 도시성장을 위해 도시가 어떻게 성장해 왔는가를 분석하고, 향후의 도시성장을 예측하며, 이에 대한 적절한 대안을 모색하는 것은 도시관리를 위해 매우 중요한 문제이다. 본 연구에서는 서울대도시지역을 대상으로 1957년부터 1997년까지의 도시성장에 관한 자료를 구축하고, 셀룰라 오토마타(Cellular Automata) 개념에 기초하고 있는 도시성장모델(UGM)을 이용하여 1998년부터 2050년까지의 서울대도시지역의 도시성장을 예측하였다.

• Journal of Navigation and Port Research
• /
• v.37 no.6
• /
• pp.627-635
• /
• 2013

This study examines the issue of causality between ocean industries and urban economic growth in the sea port city. To maximize economic advantage of Busan as a sea port city, we first need to analyze the effects of ocean industries on urban economic growth. This study focuses on the examination of the role of ocean industries and its related variations in economic growth at the urban level. Using data from Busan. Metropolitan City in Korea during 1985-2011, we find that the causality link between ocean industries and urban economic growth rates runs in both directions. Especially, industries of shipping/port, marine tourism, and shipbuilding were the most important variables in Busan economy. With this information, the empirical results show that ocean industries and its related variations have significant effects on urban economic growth. Based on these significant research findings, theoretical and practical implications were discussed.

• Journal of Society of Preventive Korean Medicine
• /
• v.5 no.2
• /
• pp.29-39
• /
• 2001

Purpose: This study was conducted to investigate and compare the growth, blood pressure, and s-cholesterol of urban and rural students in Korea. Methods: April 1999, We examined the students' health of a boys high school and a girls high school in a urban area - Jeonju, Korea.(boys were 317, girls were 343). And we also examined the students' health of a high school in a rural area - Gimje, Korea.(boys were 33, girls wee 36). Height, body-weight, Body Mass Index(BMI)I, blood pressure, and s-cholesterole were checked and compared between two groups. Results and Conclusion: The mean of height in urban students was $165.25{\pm}7.79cm$, and that in rural students was $163.77{\pm}8.72cm$. There was no significant difference stastically between two groups. The mean of body-weight in urban students $(57.78{\pm}10.51kg)$ was significantly higher than that in rural students $(54.71{\pm}10.11kg)$)(p<0.05). The mean of body mass index(BMI) in urban students $(21.12{\pm}3.27kg/m2)$ was significantly higher than that in rural students $(20.30{\pm}2.69kg/m2)$(p<0.05). Obese students $(BMI{\geq}27)$ were 31(4.70%) in urban students, 3(4.35%) in rural students. The mean of systolic blood pressure in rural students $(114.99{\pm}9.50mmHg)$ was significantly higher than that in urban students $(111.89{\pm}12.42mmHg)$(p<0.05) The mean of diastolic blood pressure in rural students$(75.72{\pm}9.90mmHg)$ was very significantly higher than that of urban students $(68.45{\pm}9.40mmHg)$(p<0.001). Hypertensives (${\geq}138/86mmHg\;in\;boys,\;{\geq}130/83mmHg$ in girls) were 28(4.24%) in urban students, 13(18.84%) in rural students. The mean of s-cholesterol in urban students was $174.95{\pm}32.28mg/dL$, and that in rural students was $176.81{\pm}33.18mg/dL$. There was no significant difference stastically between two groups. Hypercholesterolemias (${\geq}198mg/dL$ in boys, ${\geq}212mg/dL$ in girls) were 130(19.70%) in urban students, 14(20.89%) in rural students. These results suggest that there are differences in body weight, BMI, and diastolic blood pressure between urban and rural students and that it is necessary to consider these differences in health examination.

• Journal of the Korean Association of Geographic Information Studies
• /
• v.24 no.2
• /
• pp.40-51
• /
• 2021

The purpose of this study is to diagnose urban spatial structures using spatial modeling techniques for balanced urban development as part of sustainable urban growth management. Since urban spatial structure is an interaction of various activities, it is necessary to interpret the analysis results in conjunction with the analysis of changes in spatial structural elements. In this study, population and transportation were approached for research purposes. Population data were applied to the Getis-Ord G_i^* method, a spatial statistical technique, to analyze the concentration-decreasing region of the population. Traffic data analyzed the trend of centrality change by applying commuting traffic O-D data to Social Network Analysis techniques. The analysis showed that urban imbalance was growing, and the centrality of transportation was changing. The results of the analysis of spatial structure elements could be interpreted by linking the results of each factor to each neighborhood unit, predicting changes in urban spatial structure and suggesting directions for sustainable urban growth management.These results could also be used as a decision-making tool for various urban growth management policies introduced to cope with rapid urban development and uncontrollable development in many cities around the world.