• Title/Summary/Keyword: 공간인구학

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Change Prediction of Future Forestland Area by Transition of Land Use Types in South Korea (로지스틱 회귀모형을 이용한 우리나라 산지면적의 공간변화 예측에 관한 연구)

  • KWAK, Doo-Ahn;PARK, So-Hee
    • Journal of the Korean Association of Geographic Information Studies
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    • v.24 no.4
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    • pp.99-112
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    • 2021
  • This study was performed to predict spatial change of future forestland area in South Korea at regional level for supporting forest-related plans established by local governments. In the study, land use was classified to three types which are forestland, agricultural land, and urban and other lands. A logistic regression model was developed using transitional interaction between each land use type and topographical factors, land use restriction factors, socioeconomic indices, and development infrastructures. In this model, change probability from a target land use type to other land use types was estimated using raster dataset(30m×30m) for each variable. With priority order map based on the probability of land use change, the total annual amount of land use change was allocated to the cells in the order of the highest transition potential for the spatial analysis. In results, it was found that slope degree and slope standard value by the local government were the main factors affecting the probability of change from forestland to urban and other land. Also, forestland was more likely to change to urban and other land in the conditions of a more gentle slope, lower slope criterion allowed to developed, and higher land price and population density. Consequently, it was predicted that forestland area would decrease by 2027 due to the change from forestland to urban and others, especially in metropolitan and major cities, and that forestland area would increase between 2028 and 2050 in the most local provincial cities except Seoul, Gyeonggi-do, and Jeju Island due to locality extinction with decline in population. Thus, local government is required to set an adequate forestland use criterion for balanced development, reasonable use and conservation, and to establish the regional forest strategies and policies considering the future land use change trends.

Evaluating the Imbalance of Green Space and Establishing its Management Zone Using Spatial Analysis - Focused on the Use of Green Space - (공간분석을 활용한 녹지의 불균형 평가 및 관리권역 설정 - 녹지의 이용적 측면을 중심으로 -)

  • Lee, Woo-Sung;Jung, Sung-Gwan
    • Journal of the Korean Association of Geographic Information Studies
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    • v.15 no.2
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    • pp.126-138
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    • 2012
  • 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 $25m^2$/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.

Spatial Structure and Historical Change of Cemeteries in Seattle, USA (시애틀 공동묘지의 공간적 구조와 역사적 변화 양상)

  • Kim, Chung Ho
    • Journal of the Korean Institute of Landscape Architecture
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    • v.46 no.3
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    • pp.36-45
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    • 2018
  • Cemeteries in the United States are frequently observed near residential areas in cities even though they are spaces for the dead. However, it has not been fully studied when and how cemeteries were formed in the process of urbanization. Thus, this research aimed to investigate the spatial structure and historical change of cemeteries in Seattle due to urbanization, focusing on the contextual relationship between cemeteries and the surroundings according to two time periods: the early formation period of cemeteries in Seattle and the current period. For this, a mixed method was taken in this paper that combined historical analysis based on old references and historic maps with cluster analysis using GIS. In conclusion, the research found that early cemeteries of Seattle in downtown areas were introduced as by-products of urban formation, but the cemeteries in the suburbs were established ahead of urban growth and neighborhood development. In addition, Seattle's cemeteries not only showed a similar locational pattern to Seattle's shopping centers, but also were positively associated with population distribution given the Hot Spot Analysis. In other words, Seattle's cemeteries were originally located in rural areas, but later came to be located in urban areas, sustaining the landscape of American rural cemeteries.

Hotspot Detection for Land Cover Changes Using Spatial Statistical Methods (공간통계기법을 이용한 토지피복변화의 핫스팟 탐지)

  • Lee, Jeong-Hun;Kim, Sang-Il;Han, Kyung-Soo;Lee, Yang-Won
    • Korean Journal of Remote Sensing
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    • v.27 no.5
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    • pp.601-611
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    • 2011
  • Land cover changes are occurring for a variety of reasons such as urbanization, infrastructure construction, desertification, drought, flood, and so on. Many researchers have studied the cause and effect of land cover changes, and also the methods for change detection. However, most of the detection methods are based on the dichotomy of "change" and "not change" according a threshold value. In this paper, we present a change detection method with the integration of probability, spatial autocorrelation, and hotspot detection. We used the AMOEBA (A Multidirectional Ecotope-Based Algorithm) and developed the AMOEBA-CH (core hotspot) because the original algorithm tends to produce too many clusters. Our method considers the probability of land cover changes and the spatial interactions between each pixel and its neighboring pixels using a local spatial autocorrelation measure. The core hotspots of land cover changes can be delineated by a contiguity-dominance model of our AMOEBA-CH method. We tested our algorithm in a simulation for land cover changes using NDVI (Normalized Difference Vegetation Index) data in South Korea between 2000 and 2008.

A Study on Identification of the Heat Vulnerability Area Considering Spatial Autocorrelation - Case Study in Daegu (공간적 자기상관성을 고려한 폭염취약지역 도출에 관한 연구 - 대구광역시를 중심으로)

  • Seong, Ji Hoon;Lee, Ki Rim;Kwon, Yong Seok;Han, You Kyung;Lee, Won Hee
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.38 no.4
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    • pp.295-304
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    • 2020
  • The IPCC (Intergovernmental Panel on Climate Change) recommended the importance of preventive measures against extreme weather, and heat waves are one of the main themes for establishing preventive measures. In this study, we tried to analyze the heat vulnerable areas by considering not only spatial characteristics but also social characteristics. Energy consumption, popu lation density, normalized difference vegetation index, waterfront distance, solar radiation, and road distribution were examined as variables. Then, by selecting a suitable model, SLM (Spatial Lag Model), available variables were extracted. Then, based on the Fuzzy theory, the degree of vulnerability to heat waves was analyzed for each variable, and six variables were superimposed to finally derive the heat vulnerable area. The study site was selected as the Daegu area where the effects of the heat wave were high. In the case of vulnerable areas, it was confirmed that the existing urban areas are mainly distributed in Seogu, Namgu, and Dalseogu of Daegu, which are less affected by waterside and vegetation. It was confirmed that both spatial and social characteristics should be considered in policy support for reducing heat waves in Daegu.

A Study on User's Perception Survey for the Validity of Establishment of a Public Libraries: Focused on Sasanggu in Busan (공공도서관 건립의 타당성을 위한 이용자 인식조사 연구 - 부산시 사상구를 중심으로 -)

  • Kang, Eun Yeong
    • Journal of the Korean Society for Library and Information Science
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    • v.54 no.2
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    • pp.79-104
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    • 2020
  • This is a study to establish the feasibility in terms of the use of the J library, which will be built in Jurye-dong, Sasang-gu, Busan. Accordingly, this study conducted a community analysis and user survey to confirm the necessity of building a library and suggested directions for services that the library should provide in the future. To this end, a community analysis was conducted primarily on Sasang-gu, such as population distribution status, cultural institution status, and Sasang-gu vision. Afterwards, visitors to Sasang Library, Small Library, and Community Center were surveyed on the status of use of existing public libraries and the awareness of J Library to be built in the future. As a result of the survey, the necessity and intention to use J Library were found to be high, and the expectation for prompt provision of sufficient printed materials such as books and magazines was the highest. In the case of the desired space, the demand for 'open space' and 'small meeting space(family room)' was high, In the case of specialized services, there was a high demand for humanities, arts & music, movies, etc., but it was shown that they showed a general interest in various fields.

A Method to Use the Land-Use Zoning Information to Extract the DIF Zones (기반시설부담구역 추출을 위한 용도지역지구 공간정보 적용방안 연구)

  • Lee, Yong Jik;Choei, Nae Young
    • Journal of Korean Society for Geospatial Information Science
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    • v.22 no.1
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    • pp.89-99
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    • 2014
  • The current Development Impact Fee (DIF) Zoning Law allows Korean localities to designate the DIF Zone for the areas where there have been up-zoning in land-uses due to any minute additions and/or amendments in the existing clauses or provisions in the National Territory Planning Law as well as all other laws related to urban and regional planning. In reality, however, it is almost impossible to trace the sporadic and infinitesimal changes that might occur in every corner of the statutory clauses of a great number of planning related laws. This study, in an effort to overcome such practical difficulties, tries to chase the time-series zoning alterations in especially the consecutive land-use information layers of the Korea Land Information System (KLIS) as comparable analogues of the outcomes of the amendments in various planning laws. A study locality is chosen among the entire localities in the Capital Region based on the selection criteria dictated by the DIF Zoning Law such as the population- and building permit increase rate. It has been verified that the methodology suggested herein is practically applicable and successfully capable of extracting a number of DIF zones with considerable areal sizes, which could not have otherwise been possible. The consequences of this study, in this context, are expected to contribute to prevent the uncontrolled developments as the DIF Zoning Law itself was originally intended to achieve.

Characteristics of Labor Market and Spatial Networks in Daedeok Science Town as Locality, Korea (로캘러티로서 대덕연구단지의 노동시장 특성과 공간적 네트워크)

  • Han, Ju-Seong
    • Journal of the Korean association of regional geographers
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    • v.7 no.2
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    • pp.35-54
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    • 2001
  • The construction of Daedeok Science Town, located in Yuseong ward of Daejeon metropolitan city, began in the early 1970s. It started out as a national project to form an agglomeration of the major central government research institutions. Since that time Daedeok Science Town has also attracted private research institutions, mainly during the 1900s. This study geographically analyzes this research institutions to clarify the regional identity of Daedeok Science Town through an integrated approach of existing new regional geography approach, which is characteristics of labour market as the regional pattern of its laborers' residences, spatial labour division, its research network with other institutions, and networks of university, research institution, and corporations, through the spatial spread of intellectual right of property and through network of technology business incubator relationship with spin offs which is appeared to spatial interaction. The results of the study are as follows: First of all, Daedeok Science Town was not only self-sustenance with marketing garden of agricultural regions in the suburb of Daejeon city but also was consign of agricultural products to Daejeon city before 1972. Since that time, the identity of Daedeok Science town has been formed by externally factors of the science development, by the local decentralization of population and public offices in Seoul metropolitan area in terms of the world economy system, and by the internally accessibility maximization of the central location in Korea between 1992 and 1999. On the part of Daedeok Science Town it has some merits of in-migration from nation-wide, and of mother city's Daejeon. Lastly at the period of the venture business beginning after 1999, the role of institution, developing the existing high technology, made great contribution to an attraction of ventures business to here in need of high technology industry growth, including knowledge-based industry in the informated society. On these bases, Daedeok Science Town seems to grow spontaneously as a science park.

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A Study on the Design of a charnel house for an Effective Use of the National Land (효율적인 국토이용을 위한 묘지조형물 디자인에 관한 연구)

  • 박종찬
    • Archives of design research
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    • v.12 no.4
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    • pp.149-159
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    • 1999
  • It is already a well-known fact, that Korean attend the funeral ceremonies with their courteous etiquette being derived from their customs succeeded from the old ancient times to the contemporary one, regarding it as of great importance. Especially in the age of Lee Dynasty, the etiquette has been a way of Confucian ideas, which has exerted a harmful influences to Korean society due to the reflection of the dutiful conciousness to the tomb customs, and that the change of the burial site and its construction works became more and more serious and excessive. In the meantime, the population has been increased according to the development of the modern industrialization and the number of the dead has also been increased, which caused the issue on the effective use of the limited national land relating to the tomb culture, as the passing of the time. Consequently, in this study on the design of the charnel house, three aspects, humane aspect pursuing the human value, like naturalism or equalitarianism, circumstancial aspect presenting minimum space and convenient space, and formative aspect expressing convenient space, and formative aspect expressing convenient charnel function, unique form and symbolism, have been considered, in order that the tomb space could be transferred to the place for the meditation looking back the meaning of the life, or the place for the comfort. Above all, the special emphasis has been put on the creation of the tomb culture, harmonizing relaxation, exercise and refinement in everyone's life. And in order to realize it, the special interest and investment should be directed not only to the materialistic culture caused from the whole hearted devotion to the development for advancing society, but to the related parts to the value of the life or spiritual culture, such a sideology, culture or environment etc., which would be led to the entrance to the real advaced country members.

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Analysis of Spatial Characteristics of Vacant Houses using Geographic Weighted Regression Model - Focus on Busan Metropolitan City - (지리가중회귀모델을 적용한 빈집 발생의 공간적 특성 분석 - 부산광역시를 대상으로 -)

  • KIM, Ji-Yun;KIM, Ho-Yong
    • Journal of the Korean Association of Geographic Information Studies
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    • v.24 no.1
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    • pp.68-79
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    • 2021
  • The recent occurrence of vacant houses in urban areas is a remarkable social problem. One of the physical declines, the occurrence of vacant houses, accelerates various social and economic declines, such as a decline in population and a slump in the commercial district. Vacant houses have regional characteristics and spatial influence, and it is necessary to approach them locally in order to grasp the exact status of vacant houses. Therefore, in this study, the effect of urban decline on the occurrence of vacant homes was examined by region using global Moran's I and Geographic Weighted Regression(GWR) model. As a result of the analysis, there were spatial autocorrelation and heterogeneity in the occurrence of vacant houses in each eup·myeon·dong, Busan metropolitan city. In addition, there is a difference in the influence of each variable of urban decline on the occurrence of vacant houses, and even the same variable of urban decline has different effects on the occurrence of vacant houses in different regions. Therefore, it is expected that a more efficient vacant home management plan can be presented if the GWR model is used to analyze the coefficient values differentiated by region and categorize the occurrence of vacant houses.