• 제목/요약/키워드: LANDSCAPE ECOLOGY

검색결과 1,065건 처리시간 0.024초

Quantifying how urban landscape heterogeneity affects land surface temperature at multiple scales

  • Rahimi, Ehsan;Barghjelveh, Shahindokht;Dong, Pinliang
    • Journal of Ecology and Environment
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    • 제45권4호
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    • pp.190-202
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    • 2021
  • Background: Landscape metrics have been widely applied to quantifying the relationship between land surface temperature and urban spatial patterns and have received acceptable verification from landscape ecologists but some studies have shown their inaccurate results. The objective of the study is to compare landscape metrics and texture-based measures as alternative indices in measuring urban heterogeneity effects on LST at multiple scales. Results: The statistical results showed that the correlation between urban landscape heterogeneity and LST increased as the spatial extent (scale) of under-study landscapes increased. Overall, landscape metrics showed that the less fragmented, the more complex, larger, and the higher number of patches, the lower LST. The most significant relationship was seen between edge density (ED) and LST (r = - 0.47) at the sub-region scale. Texture measures showed a stronger relationship (R2 = 34.84% on average) with LST than landscape metrics (R2 = 15.33% on average) at all spatial scales, meaning that these measures had a greater ability to describe landscape heterogeneity than the landscape metrics. Conclusion: This study suggests alternative measures for overcoming landscape metrics shortcomings in estimating the effects of landscape heterogeneity on LST variations and gives land managers and urban planners new insights into urban design.

일본 국립공원에 있어서 경관파괴 및 침해에 관한 연구 (A Study on Landscape Destruction and Intrusion at National Park in Japan)

  • 배중남
    • 한국환경생태학회지
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    • 제11권3호
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    • pp.316-325
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    • 1997
  • 일본의 28개 전 국립공원에 있어서 언제, 어디서, 어떠한 경관파괴나 침해문제가 발생하였는가 그 특성을 파악하기 위하여 자연환경 전문지를 대상으로 문헌조사하여 문제발생을 요인별, 지역별 그리고 시기별로 정리, 분석하였다. 그 결과, 경관파괴나 침해를 발생시킨 요인으로는 대규모 댐건설, 임업에 의한 작업, 각종 관광시설의 정비, 공원이용자에 의해 발새오디는 문제, 공원계획과 관리상에서 발생되는 문제 등의 8가지 요인군으로 지적할 수 있었다. 한편, 시기별로는 경관문제의 발생건수나 특정지역에서 집중적으로 발생하는 등 4기(1960~1967, 1968~1975, 1976~1985, 1990초반)로 구분할 수 있었고, 특히, 1960년대 후반부터 1970년대 전반에 걸쳐서는 전국적으로 모든 국립공원에서 다양한 경관문제가 발생하였다. 지역별 특성은 本州 중앙(관동지방, 중부지방)에 위치하는 부상상한윤두, 日光, 中部山岳 등의 국립공원에서 경관문제가 다른 지역에 비하여 지속적으로 많이 발생했다. 그 원인으로는 이용객의 지속적인 증가, 고도성장과 산업발전, 국민관광 레크레이션붐, 관광시설의 대규모화, 삼림벌채 등의 임업작업, 1962년과 1969년 2회에 걸친 전국종합개발계획의 실시, 임해매립지에 의한 대규모 공업단지 조성, 모터제너레이션의 발달 등이 활발히 이루어진 사회적 배경 등을 지적할 수 있었다.

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도시근교 택지개발지역의 경관계획지표 적용방안 (Applying of Indicators for Landscape Planning in Building Lots Development District around Urban Fringe)

  • 김용수;박찬용
    • 농촌계획
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    • 제13권3호
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    • pp.51-60
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    • 2007
  • In terms of the indicators by the type for the landscape plan per the district nit, geographic ecology indicators were the items such as water, water system, topography and climate, while biological ecology indicators were the items such as green zone size, green zone ratio, biotope size and distribution. The sensory and visual indicators were the items such as view point, view axis and skyline, and the accessibility indicator items for the green zone were applied as the socially used indicators. As for the application method according to each indicator, the water or water system was expressed and applied through the slopes and elevation topographic analysis drawings, the climate was expressed and applied through the main direction of the wind and the cold wind pass alley drawings. As for the green zone size and green zone ratio, the land use according to the status and housing area development was compared to present the measured figures. In case of the biotop size and the distribution item, the range was limited to the preparation of the biotope drawings for the focused preservation. As for the view point and view axis, the view point was selected according to the view point to prepare and apply the view analysis drawing in which the view area to be preserved is analyzed. As for the skyline, its landscape photo was composed with the housing area shape, and then skyline photography was applied as the plan in order to propose and consider the various shapes of the skyline. As for the accessibility to the peen zone, the network drawing was drawn to reflect the users' accessibility and continuity of the green zone formed and preserved according to the land use plan and then the drawing was prepared and proposed as the applicable plan.

화북 다목적댐 조경계획 (A Landscape Planning of Multi-purpose Dam in Hwabuk)

  • 안계동;김용근;민권식;강현경;권전오;신지훈
    • 한국조경학회지
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    • 제34권1호
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    • pp.107-119
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    • 2006
  • The Korea Water Resources Corporation(KOWACO) proposed bidding for an alternative design for Hwabuk Multi-purpose Dam in March of 2004. The site is located in Hakseong-ri, Goro-myeon, Gunwi-gun, Gyeongsangbuk-do and has adrainage area of $87.52km^2$. The purpose of this project is to establish an environmentally friendly plan for minimizing the damage that was caused by the construction of the Hwabuk Multi-purpose Dam. The design principle of KOWACO was the restoration of the natural environment, a harmonious landscape, and the creation of a space of regional and local culture. The basic concept of this project involves an ecological-restoration axis and a functional-connection axis. The site is divided into four spaces: (1) the space of memory and symbol, (2) the space of nature and ecology, (3) the space of regional and local culture, and (4) the space of the regional economy. There are four sub-spaces in the space of memory and symbol: the track forest, the time forest, the memory room, and the sun plaza. There are three sub-spaces in the space of nature and ecology: the habitat of aquatic birds, the wind forest, and the eco-corridor. There are five themed parks in the space of regional and local culture: the culture and relic room, the wildflower garden, the ecological pond, the insect observation park, and the pyogo maze. There are three areas in the space of the regional economy: the forest pension, the waterside pension, and the community center, as Dungdungi village was reorganized to serve as a lodging complex. These themed parks, working together, can offer an effective space for nature, culture, rest, and experience.

이질적 경관에서의 연결성 측정: 리뷰 및 적용 (Measuring Connectivity in Heterogenous Landscapes: a Review and Application)

  • 송원경;김은영;이동근
    • 환경영향평가
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    • 제21권3호
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    • pp.391-407
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    • 2012
  • The loss of connectivity and fragmentation of forest landscapes are seriously hindering dispersal of many forest-dwelling species, which may be critical for their viability and conservation by decreasing habitat area and increasing distance among habitats. For understanding their environmental impacts, numerous spatial models exist to measure landscape connectivity. However, general relationships between functional connectivity and landscape structure are lacking, there is a need to develop landscape metrics that more accurately measure landscape connectivity in whole landscape and individual patches. We reviewed functional and structural definition of landscape connectivity, explained their mathematical connotations, and applied representative 13 indices in 3 districts of Seoul having fragmented forest patches with tits, the threshold distance was applied 500m by considering the dispersal of tits. Results of correlation and principal component analysis showed that connectivity indices could be divided by measurement methods whether they contain the area attribute with distance or not. Betweenness centrality(BC), a representative index measuring distance and distribution among patches, appreciated highly stepping stone forest patches, and difference of probability of connectivity(dPC), an index measuring including area information, estimated integrated connectivity of patches. Therefore, for evaluating landscape connectivity, it is need to consider not only general information of a region and species' characteristics but also various measuring methods of landscape connectivity.