• 제목/요약/키워드: urbanization ratio

검색결과 139건 처리시간 0.023초

천관산의 식물상 (The Flora of Mt. Cheongwan)

  • 김동철;정영재
    • 한국환경생태학회지
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    • 제25권3호
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    • pp.253-266
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    • 2011
  • 천관산의 관속식물은 89과 221속 270종 47변종 6품종의 총 323분류군으로 구성되어 있었다. 특기할 식물로는 멸종위기야생식물 II급인 히어리 1종이 분포하였고, 한국특산식물은 6과 6속 5종 1품종 총 6분류군이 생육하며, 구계학적 특정식물은 I등급 29종, II등급 2종, III등급 6종, IV등급 2종, V등급 1종으로 총 40종의 식물이 분포하였다. 귀화율은 3.72%, 도시화지수는 4.14%로 확인되어 비교적 낮은 비율로 나타났다.

Analysis of urbanization factor in river boundary using aerial image

  • Lee, Geun-Sang;Lee, Hyun-Seok;Chae, Hyo-Sok;Hwang, Eui-Ho
    • 대한원격탐사학회지
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    • 제22권5호
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    • pp.421-425
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    • 2006
  • It can be important framework data to monitor the change of land-use pattern of river boundary in design and management of river. This study analyzed the change of land-use pattern of Gab and Yudeung River using time-series aerial images. To do this, we carried out radiation and geometric correction of image, and estimated land-use changes in inland and floodplain. As the analysis of inland, the ratio of residential, commercial, industrial, educational and public area, that is urbanized element, increases, but that of agricultural area shows a decline on the basis of 1990. Also, Minimum Distance Method, which is a kind of supervised classification method, is applied to extract water-body and sand bar layer in floodplain. As the analysis of land-use, the ratio of level-upped riverside land and water-body increases, but that of sand bar decreases. These time-series land use information can be important decision making data to evaluate the urbanization of river boundary, and especially it gives us goodness in river development project such as the composition of ecological habitat.

경주읍성지구의 일제시대 토지소유 변화 (A STUDY ON THE TRANSFORMATION OF LAND OWNERSHIP IN THE KYUNGJU-EUPSUNG IN THE PERIOD OF JAPANESE OCCUPANCY)

  • 한삼건
    • 건축역사연구
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    • 제8권1호
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    • pp.29-40
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    • 1999
  • This paper discusses the change of land ownership in the urban historical core of Kyungju city in the Period of Japanese occupancy(1910-45) based on the analysis of land register records. Kyungju city was not designated for the cities controlled by urban planning law which was set up in 1912 and 1934. The major purpose of this paper is to clarify the urbanization process of a Korean local city where the formal urban planning projects were not carried out. The focus of the study is the increase of the Japanese landowners and Japanization of the landscape. In the very beginning of occupation, Japanese already owned about 8% of the total land of the city centre where the old Kyungju castle had been located. The ratio of the land owned by Japanese went up to more or less 70% at the end of World war II. The process which the urban core had been replaced for the Japanese is very clearly traced from the analysis of a land register records.

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울릉도의 귀화식물에 관한 연구 (The Study of Naturalized Plants in Ulleungdo)

  • 황규진;박성준;손성원;박선주
    • 한국환경생태학회지
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    • 제21권1호
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    • pp.1-12
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    • 2007
  • 울릉도 식물상의 참고문헌과 야외조사를 통해 확인된 귀화식물은 21과 49속 63종 2변종 65분류군이며, 국화과 27.7%, 벼과, 콩과, 마디풀과 각각 7.7%로 확인되었다. 본 연구를 통하여 좀소리쟁이, 노랑토끼풀, 덩이괭이밥, 유럽전호, 둥근잎나팔꽃, 큰금계국, 별꽃아재비, 몬트부레치아, 큰김의틸 총 9종이 추가 확인되었다. 1년생 초본류는 36.9%이고, 유럽 원산지가 40.0%를 차지하였다. 울릉도의 도시화지수는 22.0이며, 각각의 참고문헌에 의하면 귀화율은 증가하고 있는 것으로 확인되었다. 울릉도의 생태계 교란 야생식물로는 돼지풀이 생육하고 있었다. 귀화식물의 관리방안으로는 원예용 식물 유입의 최소화 및 확산 방지와 절개지 복구용으로 자생종을 활용하여 천이를 유도하는 것이 필요하다.

PLS 구조방정식을 이용한 자전거사고 요인분석 (A Factor Analysis for Bicycle Accidents Using the PLS Structural Equation)

  • 오주택
    • 한국ITS학회 논문지
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    • 제17권4호
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    • pp.26-40
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    • 2018
  • 본 연구는 자전거사고에 영향을 주는 요인들을 분석하기 위해 PLS 구조방정식을 이용하여 자전거사고모형을 개발한다. 본 연구에서는 자전거사고를 전국 시 군 구를 대상으로 전체 사고건수, 중상이상 사고, 경상사고로 사고유형을 구분하였다. 본 연구에서 개발된 사고모형들을 통해 자전거사고의 주요 원인들을 살펴보면 도시화의 확대가 자전거사고의 가장 큰 요인임을 알 수 있다. 자전거사고모형들에 포함된 주요 요소들을 살펴보면 인구수, 경제활동인구비율, 교차로밀도, 시가화 면적비율, 상업과 공업의 토지이용, 운전면허소지자, 자동차등록대수, 교육기관 설립수, 공원수 등의 증가가 자전거사고의 증가로 이어졌다. 또한 자전거도로연장, 자전거보유대수, 자전거수단분담률의 증가 등 각 지자체 별로 활성화되고 있는 자전거이용의 확산 역시 자전거사고를 증가시키는 주요 요소들로 밝혀졌다.

중국 도·농 간 소득격차에 영향을 미치는 요인 (Factors Effect on Income-Gap Between Urban and Rural Area in China)

  • 남설봉;나승화
    • 한국프랜차이즈경영연구
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    • 제6권1호
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    • pp.21-41
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    • 2015
  • The purpose of the study is to review the real situations of the income-gap between urban and rural areas which is focused on as one of the biggest issues revealed in the process of Chinese economic development and to find out which factors will alleviate or deteriorate such income-gap, also to find out such factors will effect differently on the regional characteristics. To analyze it, six factors such as industrialization-ratio, urbanization-ratio, tertiary industry-ratio, the level of both governmental educational support and agricultural support, and Chinese dual-economic structure are considered as explanatory variables, and OLS regression analysis was implemented to the factor data for the period of 1986-2007 about Chinese 31 districts(castles and cities). The results of the analysis show that both industrialization factors and urbanization factors affect significantly to alleviate income-gap between urban and rural areas, and as predicted, they also shows that dual-economic structure between urban and rural areas is the most biggest factors to enlarge the above mentioned income-gap. However, in accordance to the different level of economic development in eastern, central, and western districts the study shows that such factors will affect them differently respectively. The contents are as follows; In eastern district governmental educational support factor will affect the most great influence to alleviate the income-gap, in central district industrialization factor will affect the most great influence to alleviate the gap, and western district governmental agricultural support factor will affect the most great influence to alleviate the gap. Therefore, in solving the issue of income-gap between urban and rural areas in China we recommend that it is necessary for more differential policy in considering regional characteristics than unilateral policy to Chinese whole areas.

도시유출모형확립을 위한 ILLUDAS모형의 매개변수 민감도분석 (The Sensitivity Analysis of Parameters of ILLUDAS for Eastiblishment of Urban Runoff Model)

  • 서규우
    • 상하수도학회지
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    • 제12권3호
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    • pp.91-98
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    • 1998
  • In this study, the hydrological changes due to urbanization were investigated and fundamental theory and characteristics of typical urban runoff model such as ILLUDAS was studied. Above model was applied for urbanizing Dongsucheon basin, Incheon. The main parameters (II, IA, IS) which are included in model depending on runoff results were determined, and dimensionless values such as total runoff ratio($Q_{TR}$), peak runoff ratio($Q_{PR}$), and runoff sensitivity ratio ($Q_{SR}=Q_{TR}/Q_{PR}$) were estimated in order to evaluate and compare the characteristics of model based on relative sensitivity analysis.

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유역면적과 강우특성변화에 따른 CHICAGO모형 매개변수의 민감도분석에 관한 연구 (A Study on the Sensitivity Analysis of CHICAGO Model Parameters due to Watershed Area and Rainfall Characteristics)

  • 서규우;송일준
    • 상하수도학회지
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    • 제13권2호
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    • pp.74-81
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    • 1999
  • In this study, the hydrological changes due to urbanization were investigated and fundamental theory and characteristics of typical urban runoff model such as CHICAGO Model was studied. Above model was applied for urbanizing Dongsucheon basin, Incheon. The main parameters(CI, CP, CS) which are included in this model depending on runoff results were determined, and dimensionless values such as total runoff ratio($Q_{TR}$), peak runoff ratio($Q_{PR}$), and runoff sensitivity ratio($Q_{SR}=Q_{TR}/Q_{PR}$) were estimated in order to evaluate and compare the characteristics of model based on relative sensitivity analysis. Finally, applied model was proposed based on understanding of work types and established urban runoff models which can simulate well for areal development patterns and urban river basin.

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제주시제 실시이후 50년간의 주거 변화에 관한 연구 (A Study on the Change in the Housing of Jeju City for the past Fifty Years)

  • 이정림;김봉애
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2004년도 추계학술대회 논문집
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    • pp.283-287
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    • 2004
  • Jeju City has been developed and changed variously by influence of industrialization and urbanization since Jeju City was erected into a city on September 1st of 1955. The purpose of the study is to offer information and data for establishing housing policy and urban planning for being considered the change of housing in Jeju City for the past fifty years. The method of the study is an analysis of documentary records and data and an inquiry of literature. The results are following: 1) The population of Jeju City has increased six times ever before. 2) The ratio of housing supply is 95.3% and the ratio of renting houses has increased than before in terms of the type of occupation of housing. 3) The ratio of collective house is higher than detached dwelling's in term of the type of housing units.

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인천에서 서식지 환경과 토지 이용이 청개구리 (Hyla japonica) 수도에 미치는 영향 (Effects of Habitat Environment and Land Use on the Abundance of Japanese Tree Frog (Hyla japonica) in Incheon, Korea)

  • 박소현;조현석;진승남;조강현
    • Ecology and Resilient Infrastructure
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    • 제4권4호
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    • pp.200-206
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    • 2017
  • 도시화로 인한 서식지의 훼손과 단편화는 전세계적으로 양서류에게 큰 위협이 되고 있다. 본 연구에서는 도시화가 청개구리의 분포와 수도에 미치는 영향을 파악하고자, 인천와 그 주변에 위치한 18개 논에서 청음으로 청개구리의 수도를 측정하고 서식지 환경과 토지 이용을 조사하였다. 인천과 주변 논에서 청개구리의 수도는 0 - 17마리 / 서식지 또는 0 - 41마리 / ha이었다. 청개구리의 수도는 서식지와 도로와의 거리가 멀어짐에 따라서 서식지의 둘레길이 면적이 켜질수록 증가하였다. 일반적인 예측과는 달리 청개구리의 밀도는 서식지의 크기와 음의 상관을, 주변의 토지이용 강도와는 양의 상관관계를 보였다. 따라서 도시화에 의하여 서식지 면적이 감소하고 주변이 개발됨에 따라서 청개구리리가 좁은 서식지로 집중화될 수 있다고 생각된다.