• Title/Summary/Keyword: Landscape ecology

검색결과 1,063건 처리시간 0.021초

우리나라 농촌마을 경관생태학적 특성에 따른 귀화식물 분포 특성 (Distribution Characteristics of Naturalized Plants According to Characteristics of Landscape Ecology in Rural Village of Korea)

  • 김한수;오충현
    • 한국환경생태학회지
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    • 제25권3호
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    • pp.389-403
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    • 2011
  • 인간 활동이 생태계의 훼손과 생물다양성의 변화에 미치는 영향을 경관생태학적 측면에서 분석하고 해석하는 연구가 활발히 진행되고 있다. 본 연구는 우리나라의 35개 농촌마을을 대상으로 자연생태계의 교란정도를 알 수 있는 귀화식물분포현황을 조사하였다. 대상지에 대한 토지이용 현황도를 제작하고 이를 바탕으로 경관지수를 이용하여 경관생태학적특성을 정량화하였다. 이를 바탕으로 대상지의 경관지수와 귀화식물 분포특성의 상관관계를 분석하였다. 경관지수는 공간분석 프로그램인 FRAGSTATS를 이용하여 산출하였으며 귀화식물의 분포특성은 Urbanization Index와 Naturalization Index를 이용하였다. 연구 결과 귀화율과 패치밀도, 귀화율과 가장자리밀도, 귀화율과 면적가중평균형태지수 등이 양의 상관관계를 나타냈으며 귀화율과 핵심면적백분율, 귀화율과 평균핵심지역 등이 음의 상관관계가 있는 것으로 분석되었다.

Application of Landscape Ecology to Ecological Restoration

  • Hong, Sun-Kee;Kang, Ho-jeong;Kim, Eun-Shik;Kim, Jae-Geun;Kim, Chang-Hoe;Lee, Eun-Ju;Lee, Jae-Chun;Lee, Jeom-Sook;Choung, Yeon-sook;Choung, Heung-Lak;Ihm, Byun-Sun
    • The Korean Journal of Ecology
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    • 제27권5호
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    • pp.311-323
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    • 2004
  • To date, restoration ecology has focused on local areas, particularly small-scale ecosystems. As such, restoration ecology has been applied to areas with clear boundaries, such as roads, abandoned mines, wetlands, and forest ecosystems. However, those involved in these restoration efforts, due to their tendency to implement comprehensive plans to change the landscape structure, and their mismanagement of the restoration process, have more often than not wound up weakening the ecological functions of surrounding ecosystems, and in further degrading the ecosystem which they were trying to restore. To resolve these problems and restore a comparatively large-scale region, methods to assess the impact of such restoration efforts on surrounding ecosystems must be developed. These include expanding the scale of restoration efforts; in other words, moving from the local to the landscape scale. As a conclusion, practice of ecological restoration is increasingly moving towards landscape scale in order to deal with these problems.

부산시 황령산의 경관구조와 생태적 복원 (Landscape Structure and Ecological Restoration of Mt. Hwangryung in Pusan, korea)

  • 이창석;조현제
    • The Korean Journal of Ecology
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    • 제21권6호
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    • pp.791-797
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    • 1998
  • An attempt to clarify the landscape structure of urban areas was carried out on Mt. Hwangryung located in the center of Pusan, southern Korea. By means of aerial photographs and field survey, a vegetation map including land-use pattern was made. Landscape structure was described by analyzing the vegetation map. Landscape element types were classified into secondary forest, introduced plantation, and other elements including urbanized area. almus firma and Pinus thunbergii communities, introduced plantation elements, formed matrix and some secondary forest elements and the other artificial plantations of small scale tended to distribute as small patches in such matrix. The number of patches per unit area in secondary forest elements was more than that in introduced plantation element. The result on patech size was vice versa. As the results of landscape ecological analyses, it was estimated that differentiation of patches recognized in community level would be related to artificial interference and those in sub-communities levels to natural process such as progression of succession. On the other hand, restoration plans in viewpoints of restoration and landscape ecology were suggested to improve ecological quality of Mt. hwangryung.

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A Study on the Evaluation of Functional Aspect Value of Individual Biotope -Focused on the Habitat Function of Biotope-

  • Kim, Han Soo
    • 한국환경생태학회지
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    • 제29권2호
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    • pp.263-278
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    • 2015
  • This study is intended to evaluate the value of functional aspect from the viewpoint of habitat. The indicators that are used in biotope evaluations are various, but most of them use the criteria to evaluate the naturality. This evaluation method cannot appropriately reflect the functional characteristics coming from relation to the surrounding biotope. In this study, the connectivity, cohesion and diversity between individual biotope are quantitatively measured by a landscape index. It is hard to draw the functional value of individual biotopes because the landscape index related to connectivity, cohesion and diversity comes from a landscape having a number of biotopes. The concept of contribution was used to overcome this limitation. The concept of contribution is to quantify how much each individual biotope contributes to the connectivity, cohesion, and diversity in a certain range of landscape by deriving the amount of change in the landscape index according to the presence or absence of each individual biotope. In order to understand the characteristics of evaluation results in functional aspect, this research has done a comparative analysis of the previous research findings in the same target area. According to the result of the research, individual biotopes such as artificial forests, fragmented natural forests, and small planting sites were highly rated.

Pattern and process in MAEUL, a traditional Korean rural landscape

  • Kim, Jae-Eun;Hong, Sun-Kee
    • Journal of Ecology and Environment
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    • 제34권2호
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    • pp.237-249
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    • 2011
  • Land-use changes due to the socio-economic environment influence landscape patterns and processes, which affect habitats and biodiversity. This study considers the effects of such land-use changes, particularly on the traditional rural "Maeul" forested landscape, by analyzing landscape structure and vegetation changes. Three study areas were examined that have seen their populations decrease and age over the last few decades. Five types of plant life-forms (Raunkier life-forms) were distinguished to investigate ecosystem function. Principle component analysis was used to understand vegetation dynamics and community characteristics based on a vegetation similarity index. Ordination analysis transformed species-coverage data was introduced to clarify vegetation dynamics. Landscape indices, such as area metrics, edge metrics, and shape metrics, showed that spatial heterogeneity has increased over time in all areas. Pinus densiflora was the main land-use plant type in all study areas but decreased over time, whereas Quercus spp. increased. Over a decade, P. densiflora communities shifted to deciduous oak and plantation. These findings indicate that the impact of human activities on the Maeul landscape is twofold. While forestry activities caused heavy disturbances, the abandonment of traditional human activities has led to natural succession. Furthermore, it can be concluded that the type and intensity of these human impacts on landscape heterogeneity relate differently to vegetation succession. This reflects the cause and consequence of patch dynamics. We discuss an approach for sustainable landscape planning and management of the Maeul landscape based on traditional management.

생태 및 시각특성을 기초로 한 무등산도립공원의 경관평가 (Landscape Evaluation Based on Ecological and Visual Characteristics of Moodeungsan Natural Park)

  • 황국웅;이규완
    • 한국환경생태학회지
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    • 제12권1호
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    • pp.14-21
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    • 1998
  • 경관은 생태적인 공간구조와 인간에 의산 시각상의 두 개의 다른 측면을 가진다. 따라서 경관평가는 그 양면에서 평가가 이루어져야 할 것이다. 본 연구는 무등산도립공원에 대하여 생태 및 시각 특성의 양면에서 경관평가를 시도하고, 이것과 현재의 용도지구를 검토하였다. 그 결과 보존가치가 매우 높게 평가된 지역이 자연환경 지구로 지정되어 있으며 보존가치가 낮게 평가된 지역이 자연보존지구내에 존재하는 등 불합리하게 지정되어 있음이 지적되었다. 또 자연공원의 관리계획상, 생태평가와 시각평가에 기초한 경관평가를 실시하여 그 결과를 반영한 보존위주의 보다 합리적인 용도지구안을 제시하였다.

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