• Title/Summary/Keyword: Land-Use Area

Search Result 1,866, Processing Time 0.027 seconds

A Study on the Rainfall-Runoff Analysis of Using Satellite Image (위성영상정보를 이용한 강우유출 해석에 관한 연구)

  • Park, Young-Kee;Lee, Jeung-Seok;Park, Jeong-Gyu
    • Journal of Environmental Science International
    • /
    • v.19 no.1
    • /
    • pp.115-124
    • /
    • 2010
  • Urban watershed can be found in the visible changes in technology, the most realistic satellite images is to use the data. Satellite image data on the indicators for progress on the nature of the change of land use is consistent and repetitive information, regular observation makes possible the detailed analysis of space-time. These remote sensing techniques and the type of course and, by using the time series history, the past, the dynamic model and the randomized prediction methodology for the conversion process if the city and river basin cooperation of the space changes effectively will be able to extrapolate. For each of the main changes in river flow, depending on the area of urbanization as determined according to reproduce the duration of the relationship between the urbanization of the area and runoff can be represented as a linear polynomial expression was, if a linear expression in the two fast slew rate of 0.858 to 0.861 showed up, and fast slew rate of 0.934 to 0.974 for the polynomial are reported. Change of land use changes in the watershed of the flow is one of the most affecting elements. Therefore, changes in land use of the correct classification of rivers is a more accurate calculation of the amount of the floodgate. In particular, using the Landsat images through the image of the land use category, land use past data and calculated using the Markov Chain model and predict the future land use plan in the water control project will be used for large likely.

An Analysis of the Policy Effect on the Change of Application Standard of Floor Area Ratio for Land Covering Two or More Zoning Area - Focused on Gangnam-gu - (둘 이상의 용도지역 등에 걸치는 대지에 대한 용적률 적용기준 변경의 정책적 효과분석 - 강남구를 중심으로 -)

  • Yu, Myeong-Han;Lee, Chang-Moo
    • Journal of Cadastre & Land InformatiX
    • /
    • v.48 no.2
    • /
    • pp.121-135
    • /
    • 2018
  • The ministry of land, Infrastructure and transport has revised the "National Land Planning and Utilization Act" in 2012. As a result, the regulation of floor area ratio for land covering two or more zoning area has been changed. This study conducted an analysis of the policy effects of changes in the criteria for the application of the floor area ratio by revising the "National Land Planning and Utilization Act". Land covering two or more zoning area means a street side commercial area and street side residential area that is generally understood. This study analyzed the policy effects in Gangnam-gu which has relatively large areas of street side commercial area and street side residential area. The 468 office building transaction cases were analyzed in Gangnam-gu from 2007 to 2017. The result shows that the office building, which has received incentive for policy changes, reported a 19.08% rise in price compared to the one that did not. It means that the economic effects of change of application standard were significant. The existing policy also served as a restriction on land use by landowners, which in turn contributed to the devaluation of the asset's intrinsic value. Therefore, this study may have contributed to the rational use of land and to provide an empirical basis for the change in policy to be assessed for its intrinsic value.

Extracting Urban Boundary Using Grey Level Co-Occurrence Matrix Method and Visual Interpretation (GLCM과 육안판독을 이용한 도시경계 추출)

  • 손홍규;김기홍;유복모;방수남
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
    • /
    • 2003.04a
    • /
    • pp.313-316
    • /
    • 2003
  • Growing urban areas modify patterns of local land use and land cover. Land use changes associated with an urban area can be extensive. One way to understand and document land use change and urbanization is to establish benchmark maps compiled from satellite imagery The use of satellite imagery for monitoring urban growth has been widely demonstrated. Multi-temporal LANSAT TM image data has created the potential for monitoring urban change and land cover identification. In this study, for extracting urban boundary GLCM method and visual interpretation were used in CORONA imagery and SPOT imagery.

  • PDF

The Necessity and Feasibility for the Mixed-use Development of Bus Depots in Urban Residential Area (주거지 내 버스차고지의 복합화 필요성과 개발방향 제안)

  • Kim, Tae-Kyung;Yang, Woo-Hyun
    • Journal of the Korean housing association
    • /
    • v.24 no.6
    • /
    • pp.81-92
    • /
    • 2013
  • Recently, the interest in the mixed-use development of various urban planning facilities has been increased, but the interest in the Mixed-use development of bus depots that is closely related to our daily life is insufficient circumstance so far. Accordingly, this study aims to realize the necessity for the mixed-use development of bus depots as methods to improve the living environment and use efficiently the land, and to suggest reasonable development directions by analyzing their physical character after classifying bus depots according to their position in the residential area. As the results of study, bus depots have different properties according to their position in residential area and have the problem of space shortage. Also, many things such as location of entrances, the finish method of edge of bus depot's area are affected by the surrounding environment. So development plan to consider the each condition is required.

Delineation and Land Use Analysis of the Isolated Former Floodplain in the Nakdong River, Korea (낙동강에서 격리된 과거 홍수터의 경계 설정과 토지이용 분석)

  • Jin, Seung-Nam;Cho, Kang-Hyun;Cho, Hyung-Jin
    • Ecology and Resilient Infrastructure
    • /
    • v.2 no.4
    • /
    • pp.324-329
    • /
    • 2015
  • For the restoration of lateral connectivity between rivers and floodplains, it is important to find the isolated former floodplain (IFF) and to characterize its land use in Korean rivers which were channelized by levee constructions for flood protection. The aim of this study is to map the IFF and to assess its land use pattern in the Nakdong River, Korea. The isolated former floodplain was explored by being overlapped on a digital elevation model (DEM), digital topographic map and design flood level using a geographical information system (GIS) in the Nakdong River basin. The land use of the identified IFF was classified by land-use map. The total number of IFFs was 384 and their total area was $291km^2$. While IFFs were usually surrounded by mountain forest in the upper river area, they tended to be located on wide plain areas in the downstream area of Nakdong River. The land use pattern of IFFs was mostly farmland (73.9%) and urban areas (12.7%) in the river. The results of delineation and land use analysis of isolated former floodplain in the Nakdong River will be used as a base line data for planning stream restoration.

Changes in Land Use and Ownership of Kumnamno in Kwangju Under the Rule of Japanese Colonialism (일제(日帝) 강점기(强占期) 광주(光州) 금남로(錦南路) 지역(池域)의 토지이용(土地利用)과 소유(所有)의 변화(變化))

  • Jo, Jung-Kyu
    • Journal of the Korean association of regional geographers
    • /
    • v.7 no.1
    • /
    • pp.1-20
    • /
    • 2001
  • This study explored the changes of the patterns of land use and the social patterns of ownership of Kumnamno in Kwangju under the rule of Japanese colonialism by analyzing the townscape of Kumnamno in terms of the form and function of it. The research was done considering three periods: the year of 1912, 1930 and 1945. Kumnamno is the name of the street as well as the legal district name, and includes Kumnamno 1-ga, 2-ga, 3-ga, 4-ga and 5-ga. In the year 1912, Kumnamno was utilized as land, farmland and road. With the increase in population and the urbanization of the Kwangju area, it gradually began to be changed into land. By 1941, it was completely turned into land. Before and after the year 1910, the streets intersecting the Kumnamno area came into being as the roads of the Kwangju town, and were built with a lattice pattern. The road building of the Kumnamno began in accordance with the building of Kwangju station in 1922. The road building linking Kwangju Station to Chonnam Provincial Hall marked the first appearance of Kumnamno. The block from Ku-sung-no to Kumnamno 3-ga was built in 1925, the block from Kumnamno 3-ga to 2-ga in 1921, and Kumnamno 1-ga in 1930. It was not until the year 1933 that the construction of streets ranging from Ku-sung-no through Kumnamno 5-ga was finished. Examining the land ownership of the Kumnamno area in 1912, the Japanese possessed the land of Kumnamno 1-ga, 2-ga and 3-ga on the one hand and the Koreans possessed the land of 4-ga and 5-ga on the other hand. In 1930, the Japanese enlarged their sphere of influence and controlled the land located in all the areas of Kumnamno, and the Koreans reduced their ownership of Kumnamno 4-ga and 5-ga. There was a tendency for companies to occupy the land rapidly. In 1945, while the land owned by the Japanese decreased and the land owned by the Koreans did not change in quantity, the possessions of companies increased. To summarize, the Kumnamno area had some changes in the use of land during the above mentioned period. This was in part due to the construction of a street linking Kwangju Station to Chonnam Provincial Hall in order to strengthen the authority of the Japanese Government-General of Korea, as well as the expansion of the residential zone with the increase of the population of Kwangju.

  • PDF

Characteristics of Invasive Alien Plant by Land-Use Type Focused on Goyang Siksa district (고양식사지구 토지이용유형별 침입외래식물의 특성 연구)

  • Cha, Doo-Won;Choi, Jun-Young;Oh, Choong-Hyeon
    • Journal of the Korean Society of Environmental Restoration Technology
    • /
    • v.23 no.3
    • /
    • pp.1-22
    • /
    • 2020
  • This study was conducted as a basic data for preparing future management alternatives by analyzing the status and characteristics of invasive alien plants by land-use type based on the formation of a new town in Goyang Siksa district. As a result, the invasive alien plants in the Goyang Siksa district were 20 families 46 genera 57 taxa; according to the land-use type, the residential area(Wi City apartment complex) is 7 families 10 genera 12 taxa, the public facilities area(Dongguk University campus) is 17 families 40 genera 47 taxa, the mixed forest is 5 families 10 genera 10 taxa, the rice paddy is 5 families 6 genera 7 taxa, river(Mt. Gyeondal creek) is 7 families 13 genera 15 taxa were appeared. The life-form of invasive alien plants in Goyang Siksa district is annuals, the origin is America, the introduction time is third period(1962~the present), and the diffusion grade is wide spread(5 grade) species. It was higher than other types. The naturalization index by location was 31.9% in river(Mt. Gyeondal creek), 21.2% in rice paddy, 16.7% in mixed forest, 15.5% in public facilities area(Dongguk University campus), and 8.5% in residential area(Wi City apartment complex). As a result of comparing the naturalization index by regions with the previous studies, it is judged that there are differences due to the environment such as urbanization progress, size, area, population inflow and location conditions. Although many new towns have been established to date, there is a lack of research on flora (including invasive alien plants) as a basic data for preparing management alternatives. Therefore, Through this study, basic data on the management of exotic plants by land use unit in urban areas can be provided.

Rapid Ecoassessment Technique about Anthropogenic Disturbance Potentiality of Land Use (토지의 훼손 잠재성에 대한 신속한 생태평가기법)

  • 김종원
    • The Korean Journal of Ecology
    • /
    • v.26 no.1
    • /
    • pp.19-22
    • /
    • 2003
  • In order to determine the degree of anthropogenic disturbance potentiality (ADP) of the area a rapid ecoassessment technique was developed on the basis of actual vegetation map. ADP degree of relevant unit cell was computed by using four criteria of land use patterns such as forested area, open water and stream, agricultural area, and urbanized area. Ultimate ADP degree of each cell was obtained by means of direct and indirect computation process. Finally the map of ADP was drawn and analyzed. Vulnerable cell and disturbance nuclei were determined according to disturbance vector which is a kind of potential disturbance pressure of relevant cell influenced by surrounding cell. A case study was accomplished in the Gijang area of Pusan metropolitan city. 973 meshes (500m×500m) were analyzed and a total of 79 meshes were currently threatened. Present technique of rapid ecoassessment was practically useful for diagnosing and planning land use.

A Study on the Characterization of Land use in Urban Areas, according to Nonpoint Pollutant Source Runoff (도시지역 토지이용에 따른 강우사상별 비점오염물질 유출특성 파악)

  • Ryu, Je-Ha;Yoon, Chun Gyeong;Choi, Jae-Ho;Rhee, Han-Pil;Hwang, Mun-Yuong;Yang, Hwee-Jung
    • Journal of Korean Society on Water Environment
    • /
    • v.29 no.3
    • /
    • pp.309-316
    • /
    • 2013
  • The Non-Point Sources shows different characteristics over a wide area depending on basin situation and rainfall events etc. In addition, Among various land uses in the urban areas, runoff appears high in the paved area, though small in its size, during a heavy rain than in other land use owing to its high impervious rate, and pollutants become severly accumulated owing to continual transportation of vehicles, characteristically showing high concentrations of runoff in the early stage. As a result, several advanced countries including USA give a special emphasis on the paved area as a target for supervision. In view of these aspects, the research is not only required to consider separated sub-basins which are distributed according to land uses, but also needed to develop a suitable monitoring which is reflected rainfall-runoff relation. The on-site monitoring has been performed to collect data in object watershed as well.

Correlates between Urban Land Use and Manufacturing Industries Characteristics and Energy Consumption - A Case of Busan Metropolitan Area (토지이용 및 제조업 특성에 따른 에너지 사용량과의 상관성 분석 - 부산광역도시권 사례를 중심으로)

  • Lee, Yun Ju;Choi, Yeol
    • KSCE Journal of Civil and Environmental Engineering Research
    • /
    • v.39 no.5
    • /
    • pp.637-645
    • /
    • 2019
  • Global warming and a new energy policy request the energy saving and pollutant emission control in municipal level. Previous studies focus on transportation in the Seoul metropolitan area which can easily meet the policy goal by reducing it. This study expands the area of urban energy planning to the industries and land use which takes up most of energy use of the city. We empirically study the Busan metropolitan area's 5 years natural gas and electricity consumption data by the industries and land use. Results show that energy usage significantly depends on not only population but also urbanizing intensity and industrial category. This paper address that the policy maker need to pay attention on energy usage pattern of each sectors during the planning.