• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2000.04a
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• pp.147-149
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• 2000

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2005.04a
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• pp.37-40
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• 2005

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2001.04a
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• pp.66-68
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• 2001

• Korean Journal of Environment and Ecology
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• v.19 no.2
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• pp.106-111
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• 2005

To investigate the vegetation structure of trail edges in Woraksan National Park, thirty nine plots on the five trails were surveyed. Dominant species in the tree layer on trails were Quercus mongolica, Pinus densiflora and Q. variabilis, but in the shrub layer, Lespedeza maximowiczii was a dominant species on the all trails except the Dongchang section even though five trails have different situations and use of strength. The similarity index between five trails was $41.6\5%\~66.50\%$. The edge species among trails in Woraksan National Park have a similar pattern.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.8 no.1
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• pp.17-26
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• 2005

Ecological corridor is the facility to connect two habitats fragmented by roads, dam, housing and industrial area. Critics of faunal corridors have suggested that they are simply an untested application of unproved island biogeography theory. But, everyone agree that ecological corridor is important useful structural components that help animal movement in fragmented landscapes. There are 52 ecological corridors in Korea. We investigated 43 ecological corridors of these and recorded the size of corridor, planting species, management and growth condition. We compared planting species to nearby exiting vegetation species and structure. We found that there are no considerations for many aspects of planting, for example, planting species, structure, animal migration and behavior, surrounding vegetation etc. Expecially, It was ignored management of plants, difference of surrounding vegetation, lacks of diverse planting species and structure. We suggest planting the native species of tall tree, shrub and ground cover, edge planting for transitional space between road and natural habitat, planting for foraging and breeding of target animal, diverse layer vegetation, and open space of center for rapid animal dispersal.

• Journal of Environmental Impact Assessment
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• v.19 no.3
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• pp.347-356
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• 2010

Forests are being seriously fragmented as a result of land development. Land development with disregard to its subsequent environmental impacts is a primary threat to biodiversity by incurring massive habitat losses and changes in structure and composition of forests. The purpose of this study was to develop the impact assessment model for quantitative distance or degree of disturbance by land developments. This study conducted a survey about structure and composition of forest species to determine degree of impact from land development. The edge effect of forest fragmentation on the number of bird species, population size, and bird diversity was obvious. In particular, the bird diversity sharply declines around the forest edge where intensive land development projects take place. To assess the disturbance of forest species, the factors selected were the bird diversity and the rate of edge species. The impact assessment model about bird diversity was explained by type of forest fragmentation and type of vegetation ($R^2$=0.23, p<0.005). The other model about edge species explained by a distance, type of forest fragmentation, type of vegetation, and width of road ($R^2$=0.34, p<0.001). In order to test the applicability of the model developed in this study, the models was applied to the Samsong housing development in Goyang-si, Gyunggi-do. The impacts of land development on the bird species were reasonably quantified to suggest effective mitigation measure. The impact assessment model developed in this study is useful to assess the magnitude of disturbance of bird species. Particularly, the model could be applied to the current Environmental Impact Assessment practices to predict and quantify the impacts of land developments projects on forest bird species.

• Journal of Ecology and Environment
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• v.43 no.2
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• pp.271-281
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• 2019

Background: The plant communities within reservoir drawdown zones are ecologically important as they provide a range of ecosystem services such as stabilizing the shoreline, improving water quality, enhancing biodiversity, and mitigating climate change. The aim of the study was therefore to identify the major environmental factors affecting these plant communities within the drawdown zone of the Soyangho Reservoir in South Korea, which experiences a monsoonal climate, and thereafter to (1) elucidate the plant species responses and (2) compare the soil seedbank composition along main environmental gradients. Results: Two main environmental gradients affecting the plant community structure were identified within the drawdown zone; these were a vertical and longitudinal gradient. On the vertical dimension, a hydrological gradient of flood/exposure, the annual-dominated plant community near the water edge changed to a perennial-dominated community at the highest elevation. On the longitudinal dimension from the dam to the upstream, plant species composition changed from an upland forest-edge community to a lowland riverine community, and this was correlated with slope degree, soil particle size, and soil moisture content. Simultaneously, the composition of the soil seedbank was separated along the vertical gradient of the drawdown zone, with mainly annuals near the water edge and some perennials at higher elevations. The species composition similarity between the seedbank and extant vegetation was greater in the annual communities at low elevation than in the perennial communities at higher elevation. Conclusions: The structures of plant community and soil seedbank in the drawdown zone of a monsoonal riverine reservoir were changed first along the vertical and secondly along the longitudinal gradients. The soil seedbank could play an important role on the vegetation regeneration after the disturbances of flood/exposure in the drawdown zone. These results indicate that it is important to understand the vertical and longitudinal environmental gradients affecting shoreline plant community structure and the role of soil seedbanks on the rapid vegetation regeneration for conserving and restoring the drawdown zone of a monsoonal reservoir.

• Korean Journal of Environment and Ecology
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• v.13 no.4
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• pp.309-315
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• 2000

지리산국립공원 동부지역의 등산로 주연부식생 구조 및 훼손을 파악하기 위하여 7개 등산로를 대상으로 1999년 8월에 조사를 실시한 결과는 다음과 같다 등산로 상에 나타난 주연부식생의 주요 수종으로는 철쭉꽃 미역줄나무 조록싸리 등이었다 등산로 주연부의 종다양도 식생피도 개체수는 이용객 수와 깊은 상관관계는 없는 것으로 나타났다 입지환경별 드산로 주연부식생의 종구성은 남삼면과 북사면의 중복부에서 가장유사한 반면 동사면 상복부와 북사면 산록부간에 이질적이었다 한편 남, 북 사면간 등산로 주연부식생은 각 사면 산록부에서 종구성이 가장 이질적이었다 남.북사면의 중복부에서 조록싸리 철쭉꽃이 우세하였으나 북사면 상복부에서는 철쭉꽃이 우세하게 나타났다 등산로 주연부의 식생피도 능선부 남사면 북사면 동사면 순으로 높게 나타났다.

• Korean Journal of Environment and Ecology
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• v.14 no.4
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• pp.280-286
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• 2001

계룡산국립공원 지역의 등산로 주연부식생 구조 및 훼손실태를 파악하기 위하여 10개 등산로를 대상으로 2000년 8월에 조사한 결과는 다음과 같다. 등산로 주연부식생의 수종으로는국수나무, 조록싸리, 조릿대 등이었다. 등산로 주연부의 종다양도, 개체수는 이용강도와 상관관계가 없었으며, 이용강도와 하층피도는 대체적으로 상관성이 있는 것으로 나타났다. 등산로 전 구간에서 우세하게 출현한 수종은 국수나무이었으며, 대체적으로 능선부 등산로 주연부식생과 사면부에 위치한 등산로 주연부식생간 종구성이 이질적인 것으로 나타났다. 입지환경에 따른 등산로 주연부 수종의 차이는 작은 편이다. 등산로 주연부의 식생피도는 북사면, 서사면, 동사면, 남사면 순으로 높게 나타났다.

• Proceedings of the Korean Society of Environment and Ecology Conference
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• autumn
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• pp.96-99
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• 2004