• Title/Summary/Keyword: Urbanization

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An Analysis on the Structural Changes of Rural Land Use According to Urbanization (도시화에 따른 농촌토지이용구조변화 분석)

  • Hwang, Han-Cheol;Go, Young-Bae
    • Journal of Korean Society of Rural Planning
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    • v.13 no.2
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    • pp.85-92
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    • 2007
  • This study aims to show how the urbanization of Korea has progressed for the last three decades, what its characteristics are, and how rural land use has changed by the national and district(cities and counties) level. The land use changes accompanying to the urbanization is analyzed through 3 indicators such as urbanization rate, the rate of cultivated and forest land and the rate of urbanized area. The statistical data are 30 years from 1976 to 2005 for time series analysis by the national level, and are for the two years of 1995 and 2005 by the district level. The relationship between urbanization and land use changes in the national level is analyzed using statistical analysis(Correlation Analysis). In order to analyze the dynamic and spatial urbanization and land use changes effectively in the district level, Z-score, Paired T-test, Correlation Analysis, Analysis of Variance and Chi-squire Test are used. The results show negative correlation between urbanization rate and the rate of cultivated and forest land, and positive correlation between urbanization rate and the rate of urbanized area respectively. In the aspect of the change of urbanization rate, four categories are examined. In addition, four types are characterized on the basis of the rate of cultivated and forest land and the rate of urbanized area between 1995 from 2005.

Analysis on Variation of Diurnal Temperature Range of Busan and Daegu according to Urbanization (도시화에 따른 부산과 대구의 일교차 변화 특성에 관한 연구)

  • Park, Myung-Hee;Lee, Joon-Soo;Ahn, Ji-Suk;Lee, Hye-Hyun;Han, In-Seong;Eom, Ki-Hyuk;Suh, Young-Sang;Kim, Hae-Dong;Bae, Hun-Kyun
    • Journal of Environmental Science International
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    • v.25 no.2
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    • pp.295-310
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    • 2016
  • In this study, changes in daily temperature range were investigated using daily maximum and minimum temperatures of Busan and Daegu for last 81 years (1934-2014), and also characteristics of daily temperature range and seasonal fluctuations by urbanization were examined. First, elapsing changes showed a lower decreasing trend in Busan ($0.32^{\circ}C$) than Daegu ($1.28^{\circ}C$) for last 81 years. Daily temperature range showed the highest rise in winter in both Busan and Daegu. Second, daily temperature range due to urbanization showed that Busan had a pronounced decreasing trend before urbanization meanwhile Daegu showed the same trend after urbanization. On seasonal changes, the results of Busan showed a decreasing trend in summer before urbanization, and in autumn after urbanization. For Daegu, the results showed a decreasing trend in spring before urbanization, and in winter after urbanization. Seasonal fluctuations of Busan showed little difference in the pre and post-urbanization, except in winter and summer. There was large difference in daily temperature range in winter after urbanization, and in summer before the urbanization. The results in Daegu showed that there was decreasing trend of daily temperature range in all seasons after urbanization.

Analysis of Correlation between the Cause of Urbanization and Urbanization Effect of Busan by Using Daily Minimum Temperatures (일최저기온을 이용한 부산의 도시화효과와 도시화 원인과의 상관성 분석)

  • Park, Myung-Hee;Lee, Joon-Soo;Ahn, Ji-Suk;Suh, Young-Sang;Han, In-Seong;Kim, Hae-Dong
    • Journal of Environmental Science International
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    • v.21 no.12
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    • pp.1477-1485
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    • 2012
  • This study examined urbanization effects and the causes of urbanization, urban population growth, increase of the city scale, land cover change, and human cultures and economic activities, using the daily minimum temperatures of the past 50 years (1961-2010) with the subject of Busan and analyzed correlations between urbanization effects and the causes of urbanization. Thereby, this paper drew a conclusion as below: 1) Due to the urbanization effects, the average annual daily minimum temperature increased as about $1.2^{\circ}C$; however, except for the factor of urbanization, the increase was shown as about $0.2^{\circ}C$. The occupancy of urbanization effects in the total temperature increase was quite high as about 83%. 2) Just like other cities experiencing urbanization, Busan, too, sees population growth and the expansion of city area as well as increased urbanization effects. First of all, correlation between population growth and urbanization effect was high as 0.96 before 1985 while it was lowered as 0.19 after 1985. Also, correlation between the increase of city area and urbanization effect was high as 0.64 and 0.79 before and after 1985. 3) Regarding the correlation between long-term land use change and urbanization effect, urbanization effect was affected greatly by the increase of city area (0.97) and reduction of green area (0.92). 4) Concerning human activities possible to affect the climatic factors of a city, this paper found the following factors: road length, car increase, power use, and the consumer price index, etc. And regarding the correlation between the three factors and urbanization effect, the correlation was higher in the consumer price index (0.97), the number of registered cars (0.89), power use (0.75), and road length (0.58) in order.

The Effect of Economic Growth and Urbanization on Poverty Reduction in Vietnam

  • NGUYEN, Huyen Thi Thanh;NGUYEN, Chau Van;NGUYEN, Cong Van
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.7
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    • pp.229-239
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    • 2020
  • This article aims to measure the impact of economic growth and urbanization on poverty reduction in Vietnam, and verify whether economic growth and urbanization will help reduce poverty rates. Data for this study are tabular data related to growth, urbanization and poverty at the provincial level for the period of nine years, from 2006 to 2014 provided by the Vietnam General Statistics Office and the Vietnam General Department of Customs. The level of economic growth and urbanization mentioned in the study is reflected in such indicators as GDP value, exports value, imports value, urbanization rate and employment rate. The authors used logistic regression models with fixed-effects and logistic regression models with random effects. With 5% confidence level tested by the Chi-Square test of Hausman trial with the fixed-effect model, research results show that: (1) factors with significant negative impact on the poverty rate include imports value, urbanization rate and, employment rate; (2) factors that do not affect the poverty rate include exports value and GDP value. Based on the research results, this study proposes a number of policy recommendations to help promote economic growth, to sustain the urbanization process, and to contribute directly and positively to poverty reduction in Vietnam.

Relationships between Urbanization, Economic Growth, Energy Consumption, and CO2 Emissions: Empirical Evidence from Indonesia

  • BASHIR, Abdul;SUSETYO, Didik;SUHEL, Suhel;AZWARDI, Azwardi
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.3
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    • pp.79-90
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    • 2021
  • This study aims to investigate the relationship between urbanization, economic growth, energy consumption, and CO2 emissions in Indonesia. The data used in the study are time-series data for the period 1985-2017; the data utilized are sourced from World Development Indicators obtained on the World Bank database. The method uses a quantitative approach that applies the vector error correction model based on the Granger causality test. The empirical results reveal that, in the short run, there is evidence that urbanization and energy consumption can causes CO2 emissions, and they also prove that urbanization can cause energy consumption. Also, other findings prove the existence of long-run relationships flowing from energy consumption, economic growth, and CO2 emissions toward urbanization, as well as the existence of the relationship flowing from urbanization, economic growth, and CO2 emissions towards energy consumption. The results of testing the relationship between economic growth and CO2 emissions reveal that the environmental Kuznets curve hypothesis is proven in Indonesia. Thus, policies are needed to limit the impact of urbanization through high awareness-raising to maintain environmental quality and greater use of energy. Also, energy conservation policies are needed in all sectors, especially the electricity, industry, and transportation sectors.

A Study on Urbanization Efficiency analysis of China's 31 provinces and cities (중국 31개 성 및 직할시의 도시화 효율성 분석에 관한 연구)

  • Zhou, Yi Xi;Jeon, Jun-Woo;Kim, Hyung-Ho
    • Journal of Digital Convergence
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    • v.17 no.12
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    • pp.147-157
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    • 2019
  • The purpose of this study is to analyze the efficiency of urbanization in 31 provinces and cities in China, including both desirable and non-expected outputs produced during the urbanization process. Efficiency was analyzed by applying the SBM-DEA model using the urbanization calculation data of 2017 in 31 provinces and cities in China. The results show that the urbanization efficiency of eastern region is the highest, followed by central region and northeast region, and the urbanization efficiency of western region is the lowest. This study is meaningful in that it analyzes the efficiency of urbanization in 31 provinces and cities in China and suggests the direction of continuous urbanization policy. This study is limited in that it does not reflect the past trend only by conducting cross-sectional analysis for one year in 2017, and it is necessary to comprehensively evaluate urbanization efficiency by conducting additional longitudinal area analysis in the future.

Runoff Characteristics Analysis for Interior Drainage Systems in Urban Basin -Application of SWMM- (도시유역의 내수배제시스템 설계를 위한 유출특성분석 -SWMM의 적용-)

  • Choi, Yun-Young;Lee, Yeong-Hwa
    • Journal of Environmental Science International
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    • v.9 no.3
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    • pp.193-199
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    • 2000
  • This study is carried out the analysis of the runoff characteristics for the design of the interior drainage systems by SWMM in urbanization basin. The basin analyzed in this study is Bumuh-chun basin which is located in Susung-gu of Taegu city. Huff method is used for rainfall distribution analysis. The optimal rainfall duration in Bumuh-chun basin is analyzed as about 90 minutes decided from comparison of arrival time and critical duration. Flood flow variation pattern is proposed through the comparison of the results of peak flow and peak time analyzed by SWMM about pre-urbanization and post-urbanization of Bumuh-chun basin. It is known that the variation of arrival time caused by the rapid increase of pavement rate in the upper area shows about 20∼25 minutes faster than pre- urbanization. Therefore, the management of surface water for design of water supply and drainage, and channel alteration has to considered the variation of geological factors according to urbanization.

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Urbanization of Large Cities in Korea : Assessing Development Stages using Migration and Commuting data (한국 대도시의 도시화 특성 : 이동, 통근자 자료 분석을 통한 도시화 단계의 실증적 검토)

  • Kwon, Sang-Cheol
    • Journal of the Korean association of regional geographers
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    • v.17 no.5
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    • pp.536-553
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    • 2011
  • New urbanization different from the manufacturing based urban growth has been widely discussed in post-modern city, consumption city and others to reflect the urban changes in qualitative manner. Urbanization stage models consider large cities to be in mature stage, reurbanization and the stages are assumed to be experienced successively in lower sized cities. However, since the industrial restructuring implies new urbanization experiences, this study examines new urbanization in diverse aspects such as the population change and the geographic and social characteristics of commuters and migrants for the 6 large cities in Korea. Seoul follows the urbanization stages in order while other 5 large cities are divergent in their transition from the industrial city. Regional large cities reveal broad reverse commuting and selective in-migration of economically active households for better work and housing opportunities available in central cities. Similar to the consumption city thesis with enhanced cultural and recreational amenities in western cities, the widening urban residential function including housing and other services is a new urbanization characteristic of large cities in Korea.

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Urbanization Process and the Policy Solutions for Urban Problems in China (중국의 도시화 과정과 도시문제의 해결방안에 대한 연구)

  • Park, Jong-Ki
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.30 no.4
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    • pp.169-180
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    • 2014
  • China's opening up policy has proven to be quite successful. Today, China is the world's largest urban nation. According to China's National Bureau Statistics, China's urbanization rate has increased from 20 percent in 1980 to more than 50 percent in the current year. More than half of China's population resides in cities. This urbanization rate is expected to reach up to 70 percent by 2030. Primarily, a "selection and concentration strategy" in urban planning policy has driven the excessively rapid urban development and has resulted in urbanization on a massive scale. However, such policy gave rise to various urban problems, which should be examined carefully in terms of social, physical and environmental impact that stems from the urbanization process. These urban problems have become a major global issue. Therefore, this study intends to review the urbanization process and characteristics, urban policy and urban problems in China. Moreover, the study aims to suggest a new urban policy in order to reduce urban problems. The study consists of five sections. The first section briefly reviews the relationship between growth of population and urbanization rate. The second section explores the administrative system and the types of cities as well as the urban policy in China. The third section describes some of the positive and negative consequences of China's urban development. The fourth section examines China's urban problems. The fifth section provides some suggestions on the urban policy to reduce urban problems.

Characteristics of Runoff Variation due to Watershed Urbanization (유역의 도시화에 따른 유출변화특성)

  • Heo, Chang-Hwan
    • Journal of Korea Water Resources Association
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    • v.36 no.5
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    • pp.725-740
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    • 2003
  • Urbanization concerned with concentration of population, activity and expanding the urban changes a natural environmental, and human activity in urban area causes the appearance of a new hydrologic cycle system. This study is carried out the analysis for the characteristics of runoff variation in urban areas with progress of urbanization. To simulate the mechanics of runoffs on small urban watershed, the ILLUDAS model is used in this study. From the analysis of the urban-runoff processes in small urban area with the progress of urbanization, the following conclusions is obtained. It is found in the results of calculated geographical parameter that peak time is quickened by 15∼35 minutes rather than the urbanization before. Also, in the analysis of the peak rate of runoff, the peak flow rise by 60 % than the urbanization before.