• Title/Summary/Keyword: Urban changes

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To Predict the Tendency of the Development of Urban Comprehensive Park through the Social Reform of China - The Example of Changes of Comprehensive Park in Wuhan City -

  • Zhuang, Yue;Jo, Hyunju
    • Journal of Environmental Science International
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    • v.24 no.9
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    • pp.1155-1161
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    • 2015
  • This paper is to study the tendency of the development of the urban comprehensive park in the modern history of China, and take the urban comprehensive park of Wuhan as an example to study the local research through the literature.. In 1928, Wuhan Urban Comprehensive Park starting stage characteristics to the ideological education of the government as the center, in 1977 the policy of reform and opening to the outside world to entertainment center, ecology design point of view, the introduction of open space and urban plaza, to human centered design, application of science and technology. 2015 in Wuhan Urban Garden Expo theme can be seen in green life as the goal, through the design of urban comprehensive park ecology and human centered design, the application of science and technology development.

Long-term impacts of Argentine ant invasion of urban parks in Hiroshima, Japan

  • Park, Sang-Hyun;Hosoishi, Shingo;Ogata, Kazuo
    • Journal of Ecology and Environment
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    • v.37 no.3
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    • pp.123-129
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    • 2014
  • Ant communities are well suited for monitoring changes in ecosystems. Although numerous studies have examined the responses of ant communities to environmental disturbance, relatively few long-term studies on ant communities have been undertaken in urban environments. We examined species richness in nine urban parks in Hiroshima, Japan, and compared the survey results with data collected at the same sites by using the same methods in 1999. In both surveys, total of 25 species was recorded: 23 species in 1999 and 20 species in 2012. Non-metric multidimensional scaling analysis revealed that the ant communities consisted of two distinct groups, which could in turn be characterized by three patterns of ant community changes in between the two groups. The first of these community change patterns was characterized by a shift within group 1, but the number of species remained constant (approx. 10 species). The second pattern was characterized by a shift within group 2, but the number of species remained low (approx. 4 species). The third pattern was characterized by a shift from group 1 to group 2 as the abundance of Linepithema humile (Mayr) increased over time. Unlike the first and second patterns, the number of ant species in communities of the third type decreased significantly. These findings suggest that L. humile has a marked effect on the species diversity of indigenous ant communities in urban environments.

Social Costs Estimation to Evaluate Urban Trip Activity - An application of student housing and social costs analysis for urban planning - (사회적 비용을 이용한 이동 행위 평가 모델 - 기숙사의 위치와 사회적 비용의 상관관계 분석을 통한 도시 계획으로의 활용방안 고찰 -)

  • Shin, Dongyoun;Song, Yu-Mi;Kim, Sung-Ah
    • Journal of KIBIM
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    • v.6 no.2
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    • pp.19-28
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    • 2016
  • Social costs analysis seeks to reveal the environmental effects of transportation policy. It delivers a sense of the effects of the public's daily travel and the costs that are or would be incurred from individual trips. Moreover, the accumulated total number of trips will uncover the effects of travel on society. This article shows the quantitative analysis of the economic outcomes of travel using social costs estimation methods. In order to support urban planning tasks, this research implemented analysis tool for social costs estimation by travel behavior. For a case study, a jave based application which can convert people's trip data into social costs is developed. the application used for simulating student-housing effects by estimating social costs changes. The analysis included the attributes, building scale and locational changes of the student housing as well as transforms of the students' trips.

Rural Change by Increase in Urban-to-Rural migrants in Jeju Island (귀농·귀촌인구 증가에 따른 제주도 촌락지역의 변화)

  • Bu, Hyejin
    • Journal of the Korean association of regional geographers
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    • v.21 no.2
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    • pp.226-241
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    • 2015
  • This research aims to analyse rural change by increasing in urban-to-rural migrants in rural Jeju. In particular, the author analysed changes in rural area focusing on non-agricultural sector and local organization. Urban-to-rural migrants into rural Jeju have been causing increase in tourism business. Such an increase in tourism business caused increase in construction of service space and changes in land use. Meanwhile, the local organization formed by urban-to-rural migrants has differences in its members and its activities and implementing system of activities in comparison with those of native local organizations. The Seowgipo Rural Migrants Cooperative, which is the research target, has characters of urbanism even thoug it was formed in rural area.

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Changes of Housing Conditions in Later Life -Regional Comparison of Urban vs Rural Elderly- (老後 住居狀況 差異에 關한 硏究 -도시와 농촌의 비교를 중심으로-)

  • 이인수
    • Journal of the Korean housing association
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    • v.9 no.2
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    • pp.1-11
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    • 1998
  • This study has been performed to analyze housing status in later life. In this study, 234 Koreans aged 60 or more were interviewed for their current housing status. The results are drawn as follows: 1. The household size does not highly fluctuate in later life; it ranges from three to five overall. But there is a trend difference over region; The household size continuously increases until 70's in urban area, but it shows increase & decrease changes over five-year intervals. 2. The number of bedrooms slightly ranges from 3- to 3.8 over urban and rural areas without noticeable trend for age intervals. 3. Use of indoor area has regional difference; It ranges from 28 to 40 pyoung in urban area, but it does more widely form 27.7 to 50 in rural area. 4. There is a most significant region effect on structure type for the elderly; For the urban elderly, proportion of those living in single detached dwelling consistently decreases as age increases. For the rural elderly on the other hand, the rate of those living in single detached dwelling sharply increases in their 70's and the rate reaches 85.7%. 5. For the ownership trend, more than 70% of the elderly are home owners at the age 60-64, but the rate continuously decreases in later life stage while the rate of those living in their children-owned home increases.

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Detecting Land Use Changes in an Urban Area using LANDSAT TM and JERS-1 OPS Imagery (LANDSAT TM과 JERS-1 OPS 영상을 이용한 도시지역의 토지이용 변화 검출)

  • Lee, Jin-Duk;Yeon, Sang-Ho;Ryu, Jae-Yup;Kim, Sung-Gil
    • Journal of the Korean Association of Geographic Information Studies
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    • v.2 no.1
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    • pp.73-83
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    • 1999
  • The land use/cover information, which is periodically obtained from satellite imagery, can be effectively applied to change detection in rapidly changing urban areas. Also it can be used not only as base maps for spatial database in urban information system but as decision-making data for desired urban planning and development direction. In this study, we carried out both unsupervised and supervised classification on land use from Landsat TM and JERS-1 OPS data, which were collected respectively in 1991 and 1997, covering Kumi City and then detected land use changes.

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Assessing the Human Perceptions of Physical Environmental Stressors Through Behavior Response Examination

  • Kim, Siyeon;Kim, Yeon Joo;Kim, Hyunsoo;Hwang, Sungjoo
    • International conference on construction engineering and project management
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    • 2022.06a
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    • pp.855-862
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    • 2022
  • Environmental stressors considerably influence the health and safety of humans and must thus be continuously monitored to enhance the urban environments and associated safety. Environmental stressors typically act as stimuli and lead to behavioral changes that can be easily identified. These behavioral responses can thus be used as indicators to clarify people's perceptions of environmental stressors. Therefore, in this study, a framework for assessing environmental stressors based on human behavioral responses was developed. A preliminary experiment was conducted to investigate the feasibility of the framework. Human behavioral and physiological data were collected using wearable sensors, and a survey was performed to determine the psychological responses. Humans were noted to consistently exhibit changes in the movement and speed in the presence of physical environmental stressors, as physiological and psychological responses. The results demonstrated the potential of using behavioral responses as indicators of the human perceptions toward environmental stressors. The proposed framework can be used for urban environment monitoring to enhance the quality and safety.

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Forecast of Land use Change for Efficient Development of Urban-Agricultural city (도농도시의 효율적 개발을 위한 토지이용변화예측)

  • Kim, Se-Kun;Han, Seung-Hee
    • Journal of Korean Society for Geospatial Information Science
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    • v.20 no.2
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    • pp.73-79
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    • 2012
  • This study attempts to analyze changes in land use patterns in a compound urban and agricultural city Kimje-si, using LANDSAT TM imagery and to forecast future changes accordingly. As a new approach to supervised classification, HSB(Hue, Saturation, Brightness)-transformed images were used to select training zones, and in doing so classification accuracy increased by more than 5 percent. Land use changes were forecasted by using a cellular automaton algorithm developed by applying Markov Chain techniques, and by taking into account classification results and GIS data, such as population of the pertinent region by area, DEMs, road networks, water systems. Upon comparing the results of the forecast of the land use changes, it appears that geographical features had the greatest influence on the changes. Moreover, a forecast of post-2030 land use change patterns demonstrates that 21.67 percent of mountain lands in Kimje-si is likely to be farmland, and 13.11 percent is likely to become city areas. The major changes are likely to occur in small mountain lands located in the heart of the city. Based on the study result, it seems certain that forecasting future land use changes can help plan land use in a compound urban and agricultural city to procure food resources.

Urban Growth Prediction each Administrative District Considering Social Economic Development Aspect of Climate Change Scenario (기후변화시나리오의 사회경제발전 양상을 고려한 행정구역별 도시성장 예측)

  • Kim, Jin Soo;Park, So Young
    • Journal of Korean Society for Geospatial Information Science
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    • v.21 no.2
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    • pp.53-62
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    • 2013
  • Land-use/cover changes not only amplify or alleviate influence of climate changes but also they are representative factors to affect environmental change along with climate changes. Thus, the use of land-use/cover changes scenario, consistent climate change scenario is very important to evaluate reliable influences by climate change. The purpose for this study is to predict and analyze the future urban growth considering social and economic scenario from RCP scenario suggested by the 5th evaluation report of IPCC. This study sets land-use/cover changes scenario based on storyline from RCP 4.5 and 8.5 scenario. Urban growth rate for each scenario is calculated by urban area per person and GDP for the last 25 years and regression formula based on double logarithmic model. In addition, the urban demand is predicted by the future population and GDP suggested by the government. This predicted demand is spatially distributed by the urban growth probability map made by logistic regression. As a result, the accuracy of urban growth probability map is appeared to be 89.3~90.3% high and the prediction accuracy for RCP 4.5 showed higher value than that of RCP 8.5. Urban areas from 2020 to 2050 showed consistent growth while the rate of increasing urban areas for RCP 8.5 scenario showed higher value than that of RCP 4.5 scenario. Increase of urban areas is predicted by the fact that famlands are damaged. Especially RCP 8.5 scenario indicated more increase not only farmland but also forest than RCP 4.5 scenario. In addition, the decrease of farmland and forest showed higher level from metropolitan cities than province cities. The results of this study is believed to be used for basic data to clarify complex two-way effects quantitatively for future climate change, land-use/cover changes.

The Impact of Network with Central City on Urban Growth (중심도시와의 네트워크가 도시성장에 미치는 영향)

  • Eom, Hyuntae;Woo, Myungje
    • Journal of Korea Planning Association
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    • v.54 no.3
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    • pp.15-26
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    • 2019
  • The development of science and transportation technology leads to the increase of inter - city networks that play an important role in urban growth. Overall, numerous studies based on network theory pay attention to positive effects of urban network on urban growth. However, some studies have pointed out the negative effects of inter-city interactions such as straw effects. This implies that the network between cities may not be positively correlated with urban growth, and that the direction of the influence may vary from a certain threshold, such as the marginal utility curve. In this context, the purpose of this study is to measure the impacts of network with central city on urban growth in the capital region and examine the relationship between urban network and growth. Two multiple regression models are employed with changes in population and employment as dependent variables. The urban network index and other control variables are used as independent variables. Especially, the urban network indexes are used in quadratic forms to examine non linear relations with urban growth such U-shape or an inverted U-shape. The results show that the relationships between networks with the central city and urban growth are not a simple linear, and the influence can be changed from the critical point.