• 제목/요약/키워드: Land use pattern

검색결과 283건 처리시간 0.035초

농촌지역에서 유출시간에 따른 비점오염물질의 유출평가 (Dynamic Runoff of Non-point Sources Pollutants from Agricultural Areas)

  • 이치타오;허진휴;김영철
    • 한국물환경학회지
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    • 제24권6호
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    • pp.773-783
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    • 2008
  • In this paper, data collected from 22 different rural watersheds during stormflow conditions were analyzed. Those watersheds consisted of forest and cultivated land. EMC data analysis indicates that as agricultural land use increases, EMC values of TSS, COD and TN clearly tends to increase, but TP does not show a significant increase. Pattern of the pollutographs mostly has a similarity in hydrograph shape except nitrogen which inherently shows a variability and complication. The fraction of soluble reactive-P to TP increases as cultivated land use increases while mobile-nitrogen portion was higher in the runoff from forested watersheds than agricultural areas. During stormflow, pollutograph of the nitrogen was determined mainly by change in Particle-TKN as other pollutants but its effect is thought to be masked by decrease of dissolved form of nitrogen due to the dilution.

환경영향평가 대상사업에 적용가능한 생태면적률 지표 평가체계 개선 (Improvement of Biotope-Area-Ratio-Indicator and Appraisal System Applicable to Environmental Impact Assessment Projects)

  • 이관규;이상혁;김경호;이정환
    • 한국환경복원기술학회지
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    • 제14권5호
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    • pp.113-125
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    • 2011
  • Since the government of Korea (Ministry of Environment, MOE) introduced the policy applying 'Biotope-Area-Ratio-Indicator (BARI)' to huge residential land developments which Environmental Impact Assessment (EIA) should be performed, MOE has come to have the necessity to apply the indicator concretely at the stage of Prior Environment Review System (PERS) and EIA in various types of large scale land development projects. This study was conducted with the aim of supporting the application of BARI and related decision making in various other types of EIA projects as well as residential development projects through remodeling the system to apply the indicator of the past. Through the analysis of the problems in applying the past BARI and experimental appraisals to 11 types of EIA projects, the results and implications as follows were drawn. First, it's possible to extend the range of applications of BARI, which has been applied to only residential land development project, to all kinds of projects with area-typed land use pattern out of environmental impact assessment target projects. Second, it's also possible to set a target value into which regional characteristics and differences among locational properties are reflected. In addition, it's come to be able to differentially apply the target value of BARI according to the condition of the existing site. Third, it's improved to be able to suggest a macroscopic target value at the stage of PERS and to set detailed target values in each detailed land use at the stage of EIA. The key point underlies inducing methodology to determine target values to secure more permeable land coverage ratio for detailed land use patterns at the stage of EIA by making it possible to calculate BARI of the present land cover condition of the EIA target projects.

도시화에 따른 중국 연길시 토지이용의 변화 (Change of the Land Use in Yanji city of China in the Connection with Urbanization Process)

  • 이명옥
    • 한국지역지리학회지
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    • 제12권2호
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    • pp.323-337
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    • 2006
  • 본 연구는 중국 개혁개방 이후, 계속적으로 도시지역이 확장 발달하고 있는 연길시의 도시화에 따른 연길시 토지이용의 변화에 관한 연구이다. 결과를 요약하면 다음과 같다. 지목별 토지이용변화에서 1978$\sim$2003년 사이의 경지는 $22.7km^2$가 줄어 23.2% 감소하였으며, 시가화 면적은 $16.7km^2$가 늘어 무려 111.3%나 증가하였다. 또 도시적 토지이용인 공장은 250.0%, 학교는 75.2%, 공원은 271.4%, 도로는 153.3%로 증가하였다; 용도별 토지이용에서는 시역이 확대됨에 따라 1978년 이후 상업지역이 620.0%로 가장 많이 증가하였다. 또 공업지역은 250.0%로 증가했으며, 주거지역은 43.8%로 증가하였다. 이 사이에 용도지역은 뚜렷한 증가 현상을 보였다; 지가에 의한 도시화는 최고 지가지대와 최저지대가 현저한 차이를 보인다. 도시화의 정도가 지역에 따라 현저한 차이를 보이고 있으며, 도시개발사업에 의해 시가지가 확산되어, 이로 인해 지가는 개발지의 입지에 따라 변화 해왔다; 지가분포도를 살펴보면 남, 서쪽 보다 동 북쪽으로의 개발이 먼저 이루어졌음을 짐작할 수 있다. 도심 주변부는 동쪽으로의 확장이 이루어지고 도시 외연부는 남, 서쪽으로의 확장이 이루어졌다. 주요간선도로를 따라 '신흥(新興)'을 중심으로 동서방향으로 확장되었다.

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텍스트마이닝에 의한 지자체 민원청구 패턴 분석 (Pattern Analysis for Civil Complaints of Local Governments Using a Text Mining)

  • 원태홍;유환희
    • 한국측량학회지
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    • 제34권3호
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    • pp.319-327
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    • 2016
  • 우리나라는 급속한 경제발전과 도시화 과정을 거치며 도시 내부에서 안전, 환경, 교통 등 다양한 분야에서 많은 문제들에 직면하고 있다. 각 지방자치단체는 이런 도시문제를 해결하기 위해 전자민원을 접수 받아 처리하고 있지만, 민원은 해를 거듭할수록 증가하고 있는 실정이다. 따라서 본 연구는 지방 중소도시인 진주시를 대상으로 2010년부터 2015년까지 총 6년간의 전자민원 데이터를 수집하여 민원사유별로 분류하고 민원 발생지점의 위치데이터를 추출한 후 지오코딩을 통해 공간상에 점 데이터로 나타내어 공간분포 패턴분석을 실시하여 토지이용과의 연관성을 분석하였다. 그 결과, 진주시의 전자민원은 시내중심지역 내에서도 택지개발이 이루어진 주거지역, 중심상업지역, 공업·주거 혼재지역에 군집되어 발생하였다. 민원사유를 토지이용별로 분석한 결과 불법주차단속 민원이 가장 많았다. 또한 민원 발생지점의 반경 50m 내에 위치한 시설물 분포에 대해 분석한 결과 중심상업지역과 공업·주거시설이 혼재된 지역에서는 단독주택이 밀집된 지역에서 많이 발생하였다. 주거지역(구도심)의 경우 일반음식점이 많은 곳에 집중되고 있음이 확인 되었다. 이와 같은 분석결과는 민원에 대해 도시공간적 차원에서 분석함으로써 민원의 근본 원인을 찾아내어 해결방안을 모색하는데 효과적으로 활용될 것으로 판단된다.

해안 및 내륙도시 내 토지이용도별 미세먼지 분포 특성 및 상호 관련성에 관한 연구 (Study on the Characteristics of PM Distribution in Coastal and Inland Cities Correlation and Its Correlation)

  • 한승욱;이순환;이화운
    • 한국환경과학회지
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    • 제24권11호
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    • pp.1513-1523
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    • 2015
  • In order to clarify the characteristics of PM10 in coastal and inland cities and their variation statistical analysis were carried out using environmental and meteorological data observed at Busan and Daegu metropolitans during 4 year from 2010. Averaged PM10 concentration was higher in industrial area than any other land-use sites, and its maximum value reach on over $50{\mu}g/m^3$ at Jangrim site in Busan. Temporal and spatial variations of PM10 concentration in Busan were more sharply, since topograph and mesoscale wind pattern in Busan is more complicated than those in Daegu. Correlation of PM10 concentrations between sites within Daegu appeared strongly and maximum values $R^2$ is about 0.8. This indicate that because wind pattern induced by mesoscale forcing in Daegu are well unified, the variation of PM10 concentration tends to be similar in all sites within Daegu. However, due to complicate wind pattern induced by topography and coastal line, PM10 correlation of sites within Busan was weaker in comparison with in Daegu. And correlation of PM10 at same lane-use in Busan and Daegu tend to be related to the intensity of meteorological forcing, which can decide the intensity of wind pattern.

지표면 변화 탐색 및 예측 시스템을 위한 공간 모형 (Spatial Analyses and Modeling of Landsacpe Dynamics)

  • 정명희;윤의중
    • Spatial Information Research
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    • 제11권3호
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    • pp.227-240
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    • 2003
  • 본 연구는 2D 기반의 동적 공간모형(dynamic spatial landscape models)을 통해 지표 변화 과정을 이해하고 예측할 수 있는 방법론을 제시하는데 그 초점을 두고 있다. 동적 공간모형 에 기반한 연구는 크게 지표의 공간 패턴에 대한 모형화와 변화 과정에 관한 모형화 및 모의로 구성되어 있는데 지표 변화와 관련된 규칙은 변화 원인과 그 과정에 따라 다르게 정의될 수 있다. 이때 지표 패턴의 이질성은 변화와 밀접한 관계를 가지고 있기 때문에 연구 지역의 GIS 맵으로부터 공간 패턴의 특성을 모형화 하여 이를 기반으로 변화에 관한 동적 공간 모형이 적용되어야 한다. 본 논문에서는 이를 위한 모형기반 접근법이 설명되어 있고 자연 화재로 인한 지표 변화 과정에 적용되어 동적 공간 모형이 개발되었다.

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농업경영체 등록정보와 공간데이터를 활용한 밭 이용 방안 연구: 전라남도 무안군·해남군을 중심으로 (A Study on the Upland Use Plans Using Farm Manager Registration Information and Spatial Data)

  • 오윤경;유승환;최수명;이지민
    • 한국농공학회논문집
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    • 제60권4호
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    • pp.27-35
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    • 2018
  • Food consumption pattern changes, including a decrease in rice consumption and increasing demand for fresh vegetables, along with declining food self-sufficiency rate, more importance is being placed on agricultural industry within Korea. Taking these changes into consideration, there is an increasing necessity for managing upland fields on agricultural sector to revitalize agricultural land use. Therefore, in this study, upland use type was classified into agricultural economic, environmental conservation, and rural social frames. The purpose of this study was to suggest upland use plan with farm manager registration information and spatial data. As results of this analysis, the mean area of agricultural economic frame in Haenam (16.47 ha) was found to be wider than Muan (3.17 ha), and scale improvement zones (54 zones) were located in only Haenam. In case of environmental conservation frame, there's no zone of scenic agriculture land in both study areas, but landuse transition zones were located in Muan (278 zones) and Haenam (604 zones). Agro-healing zones of rural social frame were 1,018 zones in Muan and 1,588 zones in Haenam and kitchen garden sites were 342 zones in Muan and 370 zones in Haenam. These results could be used when we establish the plan of an agricultural infrastructure project or select places for a collaborative agricultural land use project.

서울 도심지의 인본열에 의한 지표온도 분석: 위성영상 적용 사례 (Analysis of the Land Surface Temperature by the Anthropogenic Heat in the Urban Area of Seoul: An Example in Application of Satellite Images)

  • 방건준;박석순
    • 환경영향평가
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    • 제19권4호
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    • pp.397-407
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    • 2010
  • The increase of the solar reradiation from urban areas relative to suburban due to urbanization heats up the air temperature in urban areas and this is called the urban heat island (UHI) effect. This UHI effect has a positive relationship with the degree of urbanization. Through the studies on UHI using the satellite imagery, the effect of the surface heat radiation was observed by verifying the relationship between the air temperature and the land cover types (surface materials such as urban, vegetation, etc.). In this study, however, the surface temperature distribution was studied in terms of land use types for Seoul. Using land use types, the surface temperature in urban areas such as residential, industrial, and commercial areas in Yeongdeungpo, highly packed with industrial and residential buildings, was maximum $6^{\circ}C$ higher than in the bare ground, which indicated that the surface temperature reflected the pattern of the human-consumed energy on the areas and showed that one of the important causes influencing the air temperature except the surface heat reradiation by the sun is the anthropogenic heat. Also, the effect due to the restoration of the Chunggae stream on UHI was investigated. The average surface temperature for the Chunggae stream was reduced about $0.4^{\circ}C$ after restoration. Considering that each satellite image pixel includes mixture of several materials such as concrete and asphalt, the average surface temperature might be much lower locally reducing UHI near the stream.

개발에 따른 탄천유역의 파편화 및 이질성분석 (Analysis of Fragmentation and Heterogeneity of Tancheon Watershed by Land Development Projects)

  • 이동근;이현이;김은영
    • 한국환경복원기술학회지
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    • 제10권6호
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    • pp.120-129
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    • 2007
  • Rapid urbanization has transformed the spatial pattern of urban land use or cover. This paper concentrates that changed characteristics of landscape structure in the Tancheon Watershed, from 1995 to 2003 were investigated using land cover map. We used FRAGSTATS software to calculate landscape indices to characterize the landscape structure. We found that built up area has been increased rapidly during the study period, while cultivated area and forest area have been decreased rapidly in the same period. From 1995 to 2003, built up area was increased from 19.73% to 39.62% and cultivated area and forest area was decreased 17.60% to 5.97% and 58.31% to 49.41%. Number of patches, mean euclidean nearest-neighbor distance, contagion index, Shannon's diversity index increased considerably from 1995 to 2003, also suggesting the landscape in the study area became more fragmented and heterogeneous. but because of continuously fragmentation, landscape became homogeneity. The study demonstrates that landscape metrics can be a useful indicator in landscape monitoring and landscape assessment.

도시 비오톱의 경관생태학적 특성분석 - 대구광역시를 사례로 - (Ecological Landscape Characteristics in Urban Biotopes - The Case of Metropolitan Daegu -)

  • 나정화;이정민
    • 한국조경학회지
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    • 제30권6호
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    • pp.128-140
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    • 2003
  • The purpose of this research was to present characteristics for the classification of biotopes and classification method of biotopes as basic data for ecological landscape planning in Metropolitan Daegu. The results of this study were as follows. 1) The study identified fifteen characteristics for classification of biotopes. Ecological landscape characteristics were divided into structural and functional factors. There are six structural factors such an inclination, and nine functional factors such as temperature. 2) The study area was separated into sixty eight biotope types. For example, an industrial district was divided into two biotope types: a biotope type of an industrial district with abundant green space, and a biotope type of an industrial district with scarce green space. 3) In the result of cluster analysis using the average linkage method between groups, biotope groups were divided into fifteen clusters and biotope groups were divided into seven clusters. Each cluster was named according to the features of a descriptive statistics analysis. For example, cluster 8 was identified as a biotope type with an impermeable pavement rate of more than 90 percent and an afforestation rate under 10 percent. 4) Fifteen biotope groups were converted to land use patterns for remote application and utilization of urban biotope in city planning. Biotope groups of a building area beyond an intermediate floor with an afforestation rate under 20-30 percent was converted to a land use pattern such as a tall apartment complex or commercial district. When examining the characteristics that were established in this research, there was a limit to achieve the objective of grade-classification because of a lack of related basic data. The research of landscape ecological characteristics for the classification of biotopes could not be completed due to a lack of time and resources, thus the study of ecological landscape characteristics will be accomplished over time.