• Title/Summary/Keyword: Land Use Situation

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A Study on the Evaluation of Urban Land Use by Urban Land Use Information System (도시토지이용정보체계에 의한 도시토지이용평가에 관한 연구)

  • 고준환
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.14 no.1
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    • pp.97-110
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    • 1996
  • The purpose of this study is to evaluate the urban land used by the Urban Land Use Information System (ULIS) which can supply the micro-level land usc information for the understanding of micro-level urban spatial structure and district-level planning and managements(such as urban design, redevelopment planning and district-level transportation planning, etc.). The study evaluates the current situation of urban land use database and suggests the prototype of urban land use database using GIS. The planning and management of post-modern city which has characterized by diversity and the mixture of land use, need more detail and quantitative information about land use. Recent redevelopment and reconstruction of existing physical condition are increasing the density of activity. It raises urban problems such as the shortage of infrastructure and traffic congestion, etc. In this process we need to construct information system which monitors current land use situation.

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Class Knowledge-oriented Automatic Land Use and Land Cover Change Detection

  • Jixian, Zhang;Yu, Zeng;Guijun, Yang
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.47-49
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    • 2003
  • Automatic land use and land cover change (LUCC) detection via remotely sensed imagery has a wide application in the area of LUCC research, nature resource and environment monitoring and protection. Under the condition that one time (T1) data is existed land use and land cover maps, and another time (T2) data is remotely sensed imagery, how to detect change automatically is still an unresolved issue. This paper developed a land use and land cover class knowledge guided method for automatic change detection under this situation. Firstly, the land use and land cover map in T1 and remote sensing images in T2 were registered and superimposed precisely. Secondly, the remotely sensed knowledge database of all land use and land cover classes was constructed based on the unchanged parcels in T1 map. Thirdly, guided by T1 land use and land cover map, feature statistics for each parcel or pixel in RS images were extracted. Finally, land use and land cover changes were found and the change class was recognized through the automatic matching between the knowledge database of remote sensing information of land use & land cover classes and the extracted statistics in that parcel or pixel. Experimental results and some actual applications show the efficiency of this method.

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Changes of Land-Use Policy in Rural China (1980년대 후반 이후 중국 농촌 토지제도의 변화)

  • Moon, Soon-Cheol
    • Journal of the Korean Geographical Society
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    • v.31 no.3
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    • pp.558-576
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    • 1996
  • Since 1978. China has progressed her reforms of her economy. In this process, refroms in rual area have been operated with top priority. The system of collective economy had been changed into that of private economy. Rural farming and land-use system had been changed also. The household responsibility system took the place of a People's Commune. That was the system that could inspire farm-household with a will to work, and hence, increase the productivity of agriculture. However, with the developement of market mechanism in the later 1980s, that system got inadequate to new situation. For instance, incentives of a will to work slowly decreased, agricultural productivity did not increase, and labor forces were tremendously transferred to non-agricultural sector. This situation created the demand for a new system of rural land policy and use. This paper intends to describe changes of new system of land use in rual China. Those changes are as follows. 1. The system of land-circulation has been spread widely. 2. 'Liangtianzhi' (the system of two kind land-use) divided the land into two kinds, 'kouliangtian' (the land of food) and 'zerentian' (the land of obligation). The one is allocated in proportion to the per capita, and to support farm-household' and function, the other is allocated in proportion to the labor force, in order to increase the commercial function of land. 4. 'Guimojingying' (management of scale): For overcomint the disadvantage of dispersal of land, the relative concentration of land was required. 4. 'Gufenzhi' (a joint-stock system) is practised for the purpose of establishing clear-cut lines of land ownership. 5. 'Sihuangpaimai' (auction the use right of four kinds of wasteland) is for full-using of the wasteland. It can be apprehended that these systems and policies were the process of adaption to market mechanism. In these, rural China could escape form the disorder due to rapid changes, and overcome the existing contradiction.

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A Study on the Improvement of Economy and the Situation of Residential Land in Downtown (대구시 도심부 주거용 토지의 실태와 경제성 제고에 관한 연구)

  • 김한수;임준홍
    • Journal of the Korean housing association
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    • v.9 no.3
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    • pp.59-68
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    • 1998
  • The purpose of this study is to determine the direction of development of residential land in downtown of Taegu. The main findings of this study are follows. The residential land in downtown is narrow in size, has bad accessibility to road and has bad land shape. So if you develop the residential land not separately but related to near place, it will be more profitable. Especially, we can use Hedonic Price Model as a was of making better in economic.

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The Characteristics of Air Temperature Distribution by Land-use Type -A case study of around Automatic Weather Station in Seoul- (토지이용 유형에 따른 기온 특성 -서울시 자동기상관측지점 주변을 사례로-)

  • Kwon, Young-Ah;Lee, Hyoun-Young
    • Journal of Environmental Impact Assessment
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    • v.12 no.4
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    • pp.281-290
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    • 2003
  • The influence of land-use type on surrounding temperature was studied the relationships between land-use types and the air condition analyzing AWS (Automatic Weather Station) data of Seoul from KMA (Korea Meteorological Administration). The distribution of air temperature by land-use type has been influenced by the different heating and cooling rates. The difference of heating rates depending on the land-use type was largest at 2~3hours after sunrise and the difference of cooling rates was largest from 2hours before sunset to 2hours after sunset with its maximum at sunset. The difference of cooling rates is greatest in a clear and calm weather situation and the large difference in cooling rates between the green areas and built-up area is up to $1.5^{\circ}C/h$. By season, the difference of cooling rates is largest in fall and in turn spring, winter and summer. In a cloudy or rainy day, the difference in heating and cooling rates on land-use type is not distinct but the tendency is similar to a clear day. In all seasons, the rate of difference occurrence of the daily range of temperature between the green areas and built-up area was large, especially fall. In a fall with a clear and calm day, the magnitude of the daily range of temperature between the green areas and built-up area was largest.

A Study on Development Type and Land-use Model of Smart Green Multi Complex (스마트 그린 복합단지의 개발유형 및 토지이용 모형에 관한 연구)

  • Park, Cheon-Bo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.11
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    • pp.5971-5978
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    • 2013
  • The aim of the study is to suggest the development type and the land-use model of smart green multi complexes focused on the lesson for future smart green complex in Korea. For the study, the concept and the development aspects are reviewed as a theoretical research and the development types of smart green multi complexes are surveyed based on its functional distribution. The types of multi-complexes are classified in three categories of small city, neighborhood and small housing estate regarding its size. As a result of the research, the land-use model of smart green multi complexes according to its types are suggested under consideration of Korean situation.

Analysis of the Efficiency of Non-point Source Pollution Managements Considering the Land Use Characteristics of Watersheds (유역의 토지이용 특성을 고려한 비점오염원 관리방안 적용에 따른 저감 효율 분석)

  • Choi, Yujin;Lee, Seoro;Kum, Donghyuk;Han, Jeongho;Park, Woonji;Kim, Jonggun;Lim, Kyoungjae
    • Journal of Korean Society on Water Environment
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    • v.36 no.5
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    • pp.405-422
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    • 2020
  • Land use change by urbanization has significantly affected the hydrological process including the runoff characteristics. Due to this situation, it has been becoming more complicated to manage non-point source pollutions caused by rainfall. In order to effectively control non-point sources, it is necessary to identify the reduction efficiency of the various management method based on land use characteristics. Thus, the purpose of this study is to analyze the reduction efficiency of non-point source pollution management practices targeting three different watersheds with the different land use characteristics using the Soil and Water Assessment Tool (SWAT). To do this, the vulnerable subwatersheds to non-point source pollution occurrence within each watershed were selected based on the streamflow and water quality simulation results. Then, considering the land use, low impact development (LID) or best management practices (BMPs) were applied to the selected subwatersheds and the efficiency of each management was analyzed. As a result of analysis of the non-point source pollution reduction efficiency, when LID was applied to urban areas, the average reduction efficiencies of SS, NO3-N, and TP were 5.92%, 4.62%, and 10.35%, respectively. When BMPs were applied to rural areas, the average reduction efficiencies of SS, TN and TP were 35.45%, 4.37%, and 10.16%, respectively. The results of this study can be used as a reference for determining appropriate management methods for non-point source pollution in urban, rural, and complex watersheds.

Optimized model of Land survey for Digital Cadastre (디지털지적 구축을 위한 국토조사의 최적화 모형)

  • Lee, Joung-Bin;HwangBo, Sang-Won;Kim, Kam-Rae
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.28 no.4
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    • pp.395-402
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    • 2010
  • According to increasing the value of real estate and various land use by urbanization and industrialization, the importance of land use has enhanced regardless of above or below the surface. Therefore the changes into Digital Cadastre using high-technical surveying methods has tried to find a solution in the purpose of providing accurate land information to End-users in real time. However Korean cadastral system was established for a short time through the Land & Forest project and it has been used for cadastral surveying until now. Land devastation by the Korean war and the indiscreet land use by unplanned land development of industrialization has raised failures to construct correct cadastral records. So it has occurred that it becomes one of social problems due to the current unmatched areas between adjacent parcels. Therefore government has tried to make an effort to solve the problems such as reducing unmatched areas and introducing a Case study for Cadastral resurvey. And also it is necessary to adopt a suitable Korean model for Cadastral resurvey. In this study, the current Korean situation of cadastral surveying was investigated and the optimized models for various patterns of Land surveying was offered.

A Study on the patterns of land use change based on the digital parcels (필지중심 토지이용변화패튼엔 관한 연구)

  • 김정훈
    • Spatial Information Research
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    • v.10 no.1
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    • pp.153-164
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    • 2002
  • This used a new method to capture the neighbouring relationship among parcels. To define the neighbouring relationship, all the surrounding parcels in the study area can be identified as neighbours of the current parcel as long as they touch each other even at a point. To examine neighbouring parcels on all polygons of the study area, this study used ArcViews avenue programming which visited each polygon in turn and produced an outfile containing the parcel record ID and the contents of each of the adjacent parcels. The second thing is to translate the record IDs of neighbouring parcels into land use. For this, this study used the Lookup function in Excel to obtain neighbouring land use. To deal with how to calculate the ratio of each land use to neighbouring land uses, this study used Visual Basic. finally, this study considered a term of neighbour land use as the ratio of the number of urban use adjacent parcels to the total number of adjacent parcels. This study shows that GIS and spatial analysis can be applied to land use change in the urban fringe area at a very detailed level using municipal parcel data which occupies about 80% of administrative affairs, especially at the local government level in Korea. The results of analysis can be useful for local government to understand its situation and to manage land use efficiently in the urban fringe. The methodology developed in this study is especially useful for an empirical approach.

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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
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    • v.29 no.3
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    • pp.309-316
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    • 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.