• 제목/요약/키워드: landscape index

검색결과 602건 처리시간 0.022초

경관지수에 의한 연안습지 식생의 분포 분석 (The Distribution Analysis of Coastal Wetland Vegetation Using Landscape Index)

  • 정종철;조홍래
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2008년도 춘계학술대회 논문집
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    • pp.39-43
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    • 2008
  • 경관을 구성하는 다양한 요소들의 공간적 분포 패턴과 상호 관계를 정량적으로 분석하기 위하여 다양한 경관지수가 개발되어 사용되고 있다. 경관구조 및 변화특성을 정량적으로 해석하기 위한 노력은 1950년대 후반부터 기하학적 이론을 기초로 하여 제기되어 왔으며, 최근에는 원격탐사, GIS, 정보이론, 프랙탈 이론에 근거한 지표 등이 도입되어 사용되고 있다. 본 연구에서는 연안습지 식생의 발달과 분포 특성을 공간적으로 해석하기 위해 Landsat 영상에 분광혼합분석 기법을 적용하여 선정한 지표면 식생비율을 10개 클래스로 구분한 후 각 클래스에 대해 경관지수를 적용하여 식생비율의 시-공간적 변동 특성을 분석하였다. 새만금방조제를 비롯한 많은 연안습지에 생성되는 습지식생의 공간적 분포를 변화탐지 하고 이들의 시-공간적 분포에 영향을 미치는 요인을 해석하여 연안습지의 보존과 개발에 대한 기초 정보를 위성자료를 통해 추출 분석하였다.

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한반도 지역의 기후변화에 의한 고산·아고산 식생 취약성 평가 (Vulnerability Assessment of Sub-Alpine Vegetations by Climate Change in Korea)

  • 이동근;김재욱
    • 한국환경복원기술학회지
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    • 제10권6호
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    • pp.110-119
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    • 2007
  • This study's objects are to predict distribution and to assess vulnerability of sub-alpine vegetations in the Korean peninsula for climate change using various climate models. This study validates relationship between sub-alpine vegetations and environmental factors using Pearson correlation analysis. Then, the future distribution of sub-alpine vegetations are predicted by a logistic regression. The major findings in this study are; First, spring mean temperature (March-May), total precipitation, elevation and warmth index are highly influencing factors to the distribution of sub-alpine vegetations. Second, the sub-alpine vegetations will be disappeared in South Korea and concentrated around Baekdu Mountain in North Korea. North Korea is predicted to have serious impact of climate change because temperature will be increased higher than in South Korea. The study findings concluded that the assessment of the future vulnerability of sub-alpine vegetations to climate change are significant.

Allometry, Basal Area Growth, and Volume Equations for Quercus mongolica and Quercus variabilis in Gangwon Province of Korea

  • Choi, Jung-Kee;You, Byung-Oh;Burkhart, Harold E.
    • 한국산림과학회지
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    • 제96권2호
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    • pp.189-196
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    • 2007
  • Allometry, basal area equations, and volume equations were developed with various tree measurement variables for the major species, Quercus mongolica and Quercus variabilis, in Korean natural hardwood forests. For allometry models, the relationships between total height-DBH, crown width-DBH, height to the widest portion of the crown-total height, and height to base of crown-total height were investigated. Multiple regression methods were used to relate annual basal area growth to tree variables of initial size (DBH, total height, crown width) and relative size (relative diameter, relative height) as well as competition measures (competition index, crown class, exposed crown area, percent exposed crown area, live crown ratio). For tree volume equations, the combined-variable and Schumacher models were fitted with DBH, total height and crown width for both species.

해빈류 벡터 장미도를 통한 해운대 해수욕장의 이안류 민감도 분석 (Rip Current Sensitive Analysis Using Rose Diagram for Wave-Induced Current Vectors at Haeundae Beach, Korea)

  • 김동희;이사홍;이정렬
    • 한국해양공학회지
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    • 제30권4호
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    • pp.320-326
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    • 2016
  • Rip current forecasts, based on intensity, are marked in four levels—notice, watch, warning, and danger. However, numerical results are represented by current vectors, whose magnitudes are then converted into predictive levels. In the present study, the rose diagram is adapted as a determinative forecasting index and examined for the case of an ideal rip channel consisting of surface, bottom, and averaged currents. Further, it is employed in the sensitivity analysis of wave-induced currents generated by wave conditions at the Haeundae Beach. The simulation of surface onshore and bottom undertow currents is accomplished by including a mass flux term in the wave-averaged continuity equation.

여수 연도의 식물상과 식생 (Flora and Vegetation of Yeondo Islet in Yeosu-si)

  • 박문수;조계중
    • 한국환경생태학회지
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    • 제21권6호
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    • pp.468-486
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    • 2007
  • 연도에 분포하는 관속식물은 107과 312속 408종 2아종 51변종 5품종으로 총 466종류가 확인되었다. 이 중 소귀나무를 포함 39종류가 상록활엽수였으며, 식물구계학적 특정식물종은 I 등급에 53종류, II 등급에 1종류, III등급에 26종류, IV 등급에 3종류, V 등급에 애기등, 섬천남성 2종류가 확인되어 46과 70속 80종 5변종으로 85종류가 분포하는 것으로 조사되었다. 귀화식물은 13과 37속 40종 2변종으로 총 42분류군이 분포하였으며, 귀화율은 9.01%, 도시화지수는 14.63%로 분석되었다. 생활형조성은 H-Dl-R5-e type을 보였다. 연도의 식생은 곰솔군락(Pinus thunbergii community)과 구실잣밤나무군락(Castanopsis sieboldii community)이 분포되어 있고, 휴경지와 완경사 산지에 억새군락(Miscanthus sinesis var. purpurascens community)이 분포하였다.

지역 환경에 따른 경관 색채분석에 관한 연구 - 전라남도 담양군을 중심으로 - (A Study on a Landscape Color Analysis according to Regional Environment - Centering on Damyang County, Jeollnamdo -)

  • 최성경;문정민
    • 한국실내디자인학회논문집
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    • 제21권4호
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    • pp.146-154
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    • 2012
  • As Damyang has preserved both beautiful natural environment and tradition very well, it needs colors which can coexist with Damyang while preserving it as it is rather than colorful and refined colors. However, the present Damyang deteriorates the quality of beautiful natural scenes by chaotic uses of colors. Therefore, colors which can represent symbolism based on the present colors of Damyang should be used so that everyone can be pleased with them. Finally, the basic colors decided were classified into main, supplement and highlight colors in consideration of characteristics of each scene and they were effectively arranged based on the colors decided. If such colors and color schemes are properly applied according to characteristics of scenes, ecological, historical, cultural and traditional scenes of Damyang can be preserved consistently. Academic literature uses the abstract to succinctly communicate complex research. An abstract may act as a stand-alone entity instead of a full paper. As such, an abstract is used by many organizations as the basis for selecting research that is proposed for presentation in the form of a poster, platform/oral presentation or workshop presentation at an academic conference. Most literature database search engines index only abstracts rather than providing the entire text of the paper. Full texts of scientific papers must often be purchased because of copyright and/or publisher fees and therefore the abstract is a significant selling point for the reprint or electronic version of the full-text. Abstracts are protected under copyright law just as any other form of written speech is protected. However, publishers of scientific articles invariably make abstracts publicly available, even when the article itself is protected by a toll barrier. For example, articles in the biomedical literature are available publicly from medline which is accessible through design. It is a common misconception that the abstracts in medline provide sufficient information for medical practitioners, students, scholars and patients. The abstract can convey the main results and conclusions of a scientific article but the full text article must be consulted for details of the methodology.

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백두대간 댓재에서 백봉령구간 마루금의 식물군집구조 특성 (Plant Community Structure of Daetjae(hill)~Baekbongryung(ridge), the Baekdudaegan Mountains)

  • 이수동;홍석환;김지석
    • 한국환경생태학회지
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    • 제26권5호
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    • pp.719-729
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    • 2012
  • 백두대간은 남한구간만 약 670km로 전체 지역에 대한 생태적 특성을 파악하기는 어려워 각 지역에 대한 상세한 연구가 지속적으로 수행되어야 한다. 이에 본 연구는 백두대간 구간 중 댓재에서 백봉령구간의 식생구조를 밝히고 향후 복원 및 관리계획 수립시 필요한 기초자료를 제시하고자 마루금을 중심으로 $10m{\times}10m(100m^2)$ 조사구 40개소를 설치하였다. TWINSPAN에 의한 군집분류 결과 구상나무군집, 소나무 우점군집, 신갈나무 우점군집, 일본잎갈나무 우점군집 등 8개로 유형화되었다. 구상나무군집과 소나무군집은 신갈나무와의 경쟁을 회피할 수 있는 능선부 또는 암반지대에 분포하였으나 낙엽활엽수와의 경쟁으로 쇠퇴할 가능성이 높아 보호의 필요성이 있었다. 단위면적당($400m^2$) 종다양도는 0.8046~1.1283이었으며 단일종 우점군집이 낮고 경쟁상태인 군집은 높은 것으로 나타났으며 대부분 층위구조가 형성된 보호가치가 있는 숲이었다.

오대산국립공원 소금강 계곡부 식물군집구조 (Plant Community Structure of the Soguemgang Valley in Odaesan National Park)

  • 강성칠;한봉호;박석철;최진우
    • 한국환경복원기술학회지
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    • 제19권4호
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    • pp.29-44
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    • 2016
  • This study was carried out to the structure of plant community, and ecological succession sere of forest ecosystem in Soguemgang Valley, Odaesan National Park. Fifteenth plots(size is $20m{\times}20m$) were set up and the results analyzed by DCA which is one of the ordination technique showed that the plant communities were divided into seven groups which area community I(Quercus variabilis-Pinus densiflora community), II(Pinus densiflora community), III(Pinus densiflora-Quercus variabilis community), IV(Pinus densiflora-Quercus serrata community), V(Quercus serrata community), VI(Pinus densiflora-Deciduous broad-leaved plant community), VII(Cornus controversa-Carpinus laxiflora community). Shannon diversity index per $400m^2$ was to 0.7777 to 1.1440 and the age of Pinus densiflora 86 years old, Quercus variabilis was ranged from 66 to 87 years old, Quercus serrata was ranged from 51 to 62 years old, Carpinus laxiflora was 94 years old. In 2013, the succession trend was predicted Pinus densiflora${\rightarrow}$Quercus variabilis, Quercus serrata ${\rightarrow}$Cornus controversa, Carpinus laxiflora. The ecological sucession progress has declined power of the Pinus densiflora and the increased power of the deciduous broad-leaved and Quercus spp. in Soguemgang Valley, Odaesan National Park. Quercus serrata and Quercus variabilis communities that judged Pinus densiflora were progressing by direction of landform. The southern slopes vegetation were progressing for Quercus variabilis, the northern slopes vegetation were progressing for Quercus serrata. In flat Valley, mainly native species of Cornus controversa, Carpinus laxiflora are predicted ecological succession for deciduous broad-leaved tree community.

The Effect of Action Observation Training on Sit to Walk with Chronic Stroke Patients

  • Kim, Jin-Cheol;Lee, Hyun-Min
    • The Journal of Korean Physical Therapy
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    • 제27권6호
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    • pp.413-418
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    • 2015
  • Purpose: This study was performed to examine the effect of action observation training on sit to-walk times in chronic stroke patients. Methods: Twelve stroke patients were randomly allocated to two groups, as follows: an action observation training (AOT) group and a scenery picture observation (SPO) group. The AOT group was engaged in video observation for 2 minutes 30 seconds with 12 ADL functional activities related to the sit-to-walk task: physical training was carried out in two repetitions lasting 2 minutes 30 seconds. The landscape imagery control group observed landscape picture for 2 minutes 30 seconds and then carried out the same physical training. The intervention involved a total of 12 sessions over 4 weeks, and each session lasted 30 minutes. The pre and post-tests measured the timed up and go test (TUG), Sit to stand test (STS), and Dynamic gait index (DGI). The Wilcoxon signed ranks test was used to compare pre-test and post-test result, and the Mann-Whitney U test was employed for comparison between groups. Results: The TUG time was significantly different between the AOT group and the SPO group. According to the findings, the experimental group's TUG was significantly decreased (p<0.05). In comparison of the two groups, there was no significant in STS or DGI between the AOT group and SPO group. Conclusion: This study showed that the intervention can be used to decrease TUG time. Our research suggests that action observation training has a positive effect on sit-to-walk times in patients with chronic stroke.

도시 고층아파트단지 주거민의 외부공간 이용행태 및 만족요인 분석 (Analysis on Residents Behavior and Determinants of Satisfaction to the Exterior Space in High-rise Apartment complex.)

  • 이현택;이철희
    • 한국조경학회지
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    • 제18권2호
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    • pp.79-93
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    • 1990
  • The purpose of this study is to establish better residential environment in APT. complex. In this study, the actual conditions of exterior space, user behavior and degree of satisfaction are investigated and analyzed on the 5 high-rise story APT complex in Taegu city. The results of this study were as follow ; The size and arrangement of organizational elemnnt to exterior space in APT. complex have been regulated by law and regulations as the buildings coverage and floor space index, but housinghold and accessibility to the racility will be simultaneously considered to raise Quality of the residential environoment. The main user behavior to exterior space in APT. complex was practical activity and the user behavior pattern by week and among APT. complex were found similiarly. In the ratio of use to exterior space in APT. Complex, that of high-rise residents were lower than that of lowrise residents. In the degree of satisfaction by property of variables to exterior environment In APT. comples, physical of buildings, social - psychologic, managerial economical, physical property of exterior space were estimated positively, but properly of facility were estimated negatively. The degee of satisfaction to exterior environment in APT. complex was highly Influenced by green space, site size. As a result of ractor analysis, the four factors were drawn out from exterior environment in APT. complex. and the factors that have an effect on the degree of residents' satisfaction by factorscore were found in the order of importance as fallow ; managemental, physical, environmental, organizalional factor. Therefore, devilopment of APT. complex should be considered in a view of environmental psychology according to physical organization for used in the future. It is recommended that this problems should be necessitated to be more deeply studies in the future.

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