• 한국조경학회지
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• 제36권1호
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• pp.38-48
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• 2008

This study examines the characteristics of the herbaceous vegetation structure of Haneul Park District in World Cup Park, which had previously been used as a landfill for 15 years. The survey was carried out through actual vegetation and vegetation structures from 2003 to 2006, biannually. Firstly, as a result of analysis of actual vegetation, the autumn season changed more quickly over the 2 year span than did the spring season in terms of actual vegetation area. Annual plants increased for the initial $3{\sim}4$ years and then perennial plants increased. Secondly, the results of analysis in vegetation structure are as follows: 1. The number of planted species gradually decreased. 2. Miscanthus sinensis var. purpurascens of the control region was maintained but Imperata cylindrica var. koenigii of the non-control region was invaded by Miscanthus sacchariflorus, Glycine soja and Phragmites communis etc. 3. Planted species in the control region were maintained in superior state, but the non-control region was changed by natural occurrence plants until 2006, the fourth year. 4. Physostegia virginiana and Aster koraiensis which were planted in the non-control region were maintained but most of planted species weakened and changed by natural occurrence plants including Erigeron annuus, Artemisia princeps, Setaria faberii and Phragmites communis etc. Based on the results, we suggested the management method of herbaceous vegetation in the Haneul Park District.

• 한국지리정보학회지
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• 제23권2호
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• pp.21-35
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• 2020

식생정보는 도시계획, 조경, 수자원, 환경 등 다양한 분야에서 활용되는 매우 중요한 인자이다. 식생은 수관밀도 혹은 엽록소 함량에 따라 식생의 활력도에 차이가 발생하나 기존 연구에서는 식생지역을 분류시 식생 활력도를 고려하지 않았다. 본 연구에서는 다양한 응용연구를 충족시키기 위해 식생 활력도를 고려한 식생지수 경계값을 설정하는 연구를 수행하였다. 먼저 eBee 고정익 드론에 다중분광 카메라를 탑재하여 광학 및 근적외선 정사영상을 구축하였으며, 그리고 각 정사영상에 대해 GIS 연산을 수행하여 NDVI, GNDVI, SAVI, MSAVI 식생지수를 계산하였다. 또한 대상지에 대한 식생위치를 VRS 측량을 통해 조사하였으며 이를 이용하여 식생 활력도를 고려한 식생지수별 정확도를 평가하였다. 그 결과 식생 활력도가 좋은 지점을 식생지역으로 선정한 시나리오가 식생 활력도가 다소 부족한 지점도 식생지역으로 선정한 시나리오에 비해 식생지수의 분류 정확도가 높게 나타났다. 또한 각 현장 조사 지점과의 중첩을 통해 계산한 식생지수별 Kappa 계수를 통해 시나리오별로 식생을 분류하기에 가장 적합한 식생지수 경계값을 선정할 수 있었다. 따라서 본 연구에서 제시한 식생 활력도를 고려한 식생지수 정확도 평가는 향후 도시계획 등 다양한 업무 분야에서 의사결정 지원을 위한 유용한 정보를 제공해 줄 수 있을 것으로 판단된다.

• 한국환경복원기술학회지
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• 제15권6호
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• pp.43-52
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• 2012

For this paper, a study targeting 9 forest patches in Dangjin to suggest for the wild birds, was conducted. The correlation between the emergence of wild birds and the forest vegetation was analyzed, and the patterns of forest vegetation for the improvement of species diversity were suggested by classifying wild birds and foraging guild by the type of forest vegetation. As for the characteristics of the wild birds emerged, more species and bigger population appeared in the vegetation type of mixed stand forest where the natural deciduous broadleaf trees and evergreen needleleaf trees coexisted in the large scale vegetation area. Thus, it was known that the advent of summer migratory birds and resident birds were affected the most by forest patches and vegetation types. As for foraging guild, the larger the forest paches the more the species and the population of the wild birds inhabiting in shrubs and bushes.

• Journal of Forest and Environmental Science
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• 제25권1호
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• pp.49-55
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• 2009

The present study analyses the effect of land use on the vegetation of some desert ecosystems in Abu Dhabi, United Arab Emirates (UAE). Three sites were selected to represent different types of land use, inside Umm Al-Banadeq forest, outside the forest and along Abu Dhabi-Al Ain Trucks Road. In total, fifty-two stands were examined; including a matrix of 14 species ${\times}$ 52 stands. Based on species cover data, stands were classified using TWINSPAN and ordinated using DCA. Four vegetation groups were generated at level three of classification. Zygophyllum mandavillei was dominant in most vegetation groups; Heliotropium bacciferum dominated vegetation groups inhabited the forest. Species richness, species turnover, relative evenness and relative concentration of dominance of forest vegetation groups were 2.8, 5.7, 0.7, and 2.0, respectively. The differences were attributed to both natural variability and forestry-induced changes, including change in land use, drainage and ploughing and shading by trees. Vegetation group inhabited Abu Dhabi-Al Ain Trucks Road, that were dominated by Haloxylon salicornicum and Zygophyllum mandavillei have high total cover (8.8 m per $m^{-1}$). Most community and vegetation attributes were significantly higher inside the forest than outside. Human interventions and environmental factors affected species diversity and abundance of these communities.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.175-177
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• 2003

To monitor riparian wetlands as one of complex natural ecosystems using remotely sensed data, we need to concurrently consider vegetation, soil and water which constitute complicated wetland ecosystems. To identify riparian distribution we adopted linear Spectral Mixture Analysis in order to improve identification accuracy of riparian areas. This study has indicated that linear SMA adopting tasseled cap endmember selection is an enhanced routine for Identification of riparian wetlands and phenologically autumn imagery is more appropriate to detect riparian vegetation in the Paldang water catchment area.

• 한국환경생태학회:학술대회논문집
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• 한국환경생태학회 2001년도 정기총회 및 학술논문발표회
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• pp.101-105
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• 2001

• 한국환경복원기술학회지
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• 제9권5호
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• pp.32-40
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• 2006

This study's objects are to suggest effective forest community-level management measures by identifying the vulnerable forest vegetation communities types to climate change through a comparative analysis with present forest communities identified and delineated in the Actual Vegetation Map. The methods of this study are to classify the climatic life zones based on the correlative climate-vegetation relationship for each forest vegetation community, the Holdridge Bio-Climate Model was employed. This study confirms relationship between forest vegetation and environmental factors using Pearson's correlation coefficient analysis. Then, the future distribution of forest vegetation are predicted derived factors and present distribution of vegetation by utilizing the multinomial logit model. The vulnerability of forest to climate change was evaluated by identifying the forest community shifts slower than the average velocity of forest moving (VFM) for woody plants, which is assumed to be 0.25 kilometers per year. The major findings in this study are as follows : First, the result of correlative analysis shows that summer precipitation, mean temperature of the coldest month, elevation, soil organic matter contents, and soil acidity (pH) are highly influencing factors to the distribution of forest vegetation. Secondly, the result of the vulnerability assessment employing the assumed velocity of forest moving for woody plants (0.25kmjyear) shows that 54.82% of the forest turned out to be vulnerable to climate change. The sub-alpine vegetations in regions around Mount Jiri and Mount Seorak are predicted to shift the dominance toward Quercus mongolica and Pinus densiflora communities. In the identified vulnerable areas centering the southern and eastern coastal regions, about 8.27% of the Pinus densiflora communities is likely to shift to sub-tropical forest communities, and 3.38% of the Quercus mongolica communities is likely to shift toward Quercus acutissima communities. In the vulnerable areas scattered throughout the country, about 8.84% of the Quercus mongolica communities is likely to shift toward Pinus densiflora communities due to the effects of climate change. The study findings concluded that challenges associated with predicting the future climate using RCM and the assessment of the future vulnerabilities of forest vegetations to climate change are significant.

• Spatial Information Research
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• 제18권5호
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• pp.27-36
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• 2010

본 연구에서는 툰드라-타이가 경계영역의 변화를 확인하기 위해 식생의 분포 변화를 관측하였다. 툰드라-타이가 경계영역은 인간 활동 혹은 기후 변화에 따른 신호로 나타나는 식생패턴의 이동을 관측하기 위해 사용된다. 극지의 툰드라-타이가 경계영역은 조금의 변화에 대해서도 두드러진 반응을 관찰 할 수 있으므로 다른 곳에 비해 기후변화에 대한 반응과 확인이 명확하다. 연구 자료로서 2000년에서 2009년까지 총 10년간 매년 8월을 Terra위성 MODIS(MODerate resolution Imaging Spectroradiometer) 센서로부터 취득한 LAI(Leaf Area Index) 8-Day 자료를 사용하였고, 보조 자료로서 기후지도와 GLC 2000(Global Land Cover 2000)토지피복 지도를 사용하였다. 본 연구에서는 엽면적 지수의 10년치 장기간 자료를 이용하여 시 공간 분석과 식생의 밀도가 저조한 지역을 중심으로 위도대 별, 토지피복 별분석을 시행하였다. 연구대상 지역에 대하여 엽면적 지수의 기준값을 바탕으로 한 분석에서 2000년에서 2009년까지 LAI의 변화를 확인하였다. 툰드라 기후에서 식생의 감소가 일어난 면적($22,372km^2$) 보다 식생의 성장을 보인 면적은 $730,325km^2$ 로서 식생의 발달을 확인할 수 있었다. 또한 위도대 별 면적 분석을 통해 위도 $62^{\circ}$ N의 주위와 위도 $64^{\circ}$ N~$66^{\circ}$ N을 중심으로 면적 증가가 나타났으며, 툰드라-타이가 경계영역의 식생은 2000년부터 2009년까지 전반적인 증가 추세가 나타났다. 전체적으로 식생 감소가 일어나는 면적 변화는 다소 적은 것에 비해 식생의 성장과 발달이 일어나는 곳의 면적은 크게 증가하는 것을 확인하였다.

• 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.

• 한국콘텐츠학회논문지
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• 제10권11호
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• pp.452-460
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• 2010

본 연구는 하천유형별 식생모델의 계획 홍수위에 대한 1차원 HEC-RAS 및 2차원 RMA-2 수치모형을 이용하여 홍수위 안정성 검토를 수행하였다. 식생모델은 하천을 흐르는 수로구간이 사회 문화적으로 위치하는 중요도에 따라 도시 농촌 산지하천으로 구분해 구축하였다. 수치모형에 의한 홍수위 검토결과는 대상하천의 식생 전 홍수위는 각 하천의 계획홍수위와 비슷한 양상을 보였다. 또한 식생밀도를 변화시킨 도시하천의 경우는 식생밀도 25% 추가 시 홍수위 상승량은 약 0.20m 정도이나 제방월류는 나타나지 않았다. 농촌 및 산지하천의 경우에는 홍수위 상승량 변화가 거의 없는 것으로 나타났다.