• Korean Journal of Environment and Ecology
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• v.9 no.1
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• pp.30-41
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• 1995

Vegetational structure were investigated for evergreen broad-leaved forest in (Mt.) Pulgapsan. Forty plots were classified into five groups, which were Aphananthe aspera community, Neolitesea sericea -Aphananthe aspera - Torreya nucifera community, deciduous broad-leaved forest group. Quercus aliena community, Quercus aliena - Quercus variabilis community by the TWINSPAN and DCA ordination techniques. But the vegetation of (Mt.)Pulgapsan was seem to be unstable structure of seral stage. Neolitsea sericea showed positive correlation to Aphananthe aspera and negative correlation to Quercus aliena. Quercus variabilis, Garpinus tschonoskii.

• Korean Journal of Environment and Ecology
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• v.14 no.1
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• pp.18-27
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• 2000

지리산국립공원 동부지역인 경남하동군 화개면에 위치하는 삼신봉(해발 1,284m) 산림 중 산불이 발생하였던 지역의 식생회복현황을 파악하기 위해 산불이 발생하였던 지역에 20개 조사구 대조지역에 12개 조사구를 설정하고 연구를 수행하였다 산불이 발생하였던 지역에 설정한 20개 조사구를 대상으로 TWINSPAN과 DCA를 분석한 결과 신갈나무군집(I) 신갈나무-쇠물푸레군집(II) 으로 분리되었고 대조지역에 설정한 조사구는 신갈나무군집(II)이었다 군집 I과 군집II에서 교목층과 아교목층의 대부분 수목이 고사상태이었고 관목층에서는 산화후 천이 초기에 나타나는 조록싸리가 우점하고 있었다 상대우점치와 유사도지수를 분석한 결과 산불이 발생하였던 신갈나무군집(I) 신갈나무-쇠물푸레군집(II) 은 대조구인 신갈나무군집(III)과 유사도지수분석에서 유사성이 높았는데 산불발생 이후 피해를 입은 신갈나무가 맹아에 의해 회복속도가 빠른 것으로 추정되었다 Shannon의 종다양도는 산불지역(군집 I,II)에서 각각 0.3259, 0.4727이었고 대조구 (군집III)는 0.1084로 나타났다.

• Korean Journal of Environment and Ecology
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• v.14 no.4
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• pp.217-237
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• 2001

본 연구는 계룡산국립공원 갑사 계곡에 위치하는 낙엽활엽노거수군집의 식생군집구조를 부석하기 위하여 18개의 Belt-transect를 설정하여 조사하였다. 노거수군집 전체면적은 $46.442\m^2$이었고, 이 중 노거수가 차지하는 면적은 $35.246\m^2$이었으며, 대표적인 현존식생은 느티나무군집, 팽나무군집, 회화나무군집, 소나무군집, 말채나무군집이었다. 노고수의 규 은 흉고직경이 50~120cm, 수고가 18~22m 이었으며, 흉고직경 70cm이상되는 수종은 소나무(1주), 느티나무(9주), 갈참나무(8주), 졸참나무(1주), 회화나무(2주), 말채나무(1주)이었고, 본 조사 대상지의 평균수령은 150년생 내외이었다. 18개 조사구에 대하여 DCA의 ordination 분석결과 소나무군집, 느타나무-낙엽활엽수군집, 검팽나무-낙엽활엽수군집, 회화나무군집, 말채나무군집, 팽나무군집으로 분리되었다. 교모측의 우점종감의 평균거리는 8~12m이었고, Shannon의 종다양도는 0.7~0.9(단위면적:$200\m^2$_이었다.X>_이었다.

• Korean Journal of Environment and Ecology
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• v.28 no.2
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• pp.197-204
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• 2014

The purpose of this study was to investigate the vegetation structure of Daphniphyllum macropodum community in the Yeong-sil and Seong-panack. To do so, 26plots ($(20m{\times}20m)$) were set up and surveyed. Plant communities were classified with 3 groups according to the analysis of classification by TWINSPAN and DCA Ordination; Pinus densiflora-Carpinus laxiflora (I), Carpinus laxiflora-Quercus serrata (II) and Carpinus tschonoskii (III). Daphniphyllum macropodum is appearing in understory and shrub layer of all groups. We found that Daphniphyllum macropodum will be dominated in understory and shrub layer. These results was judeged that these influence is depended on difference of altitude and accompanied species. Accompanied species were lived in similar growth environment to Daphniphyllum macropodum. That species were Styrax japonica, Quercus serrata of understory and Ilex crenata, Taxus cuspidata of shrub layer.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2004.03a
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• pp.289-294
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• 2004

본 연구의 목적은 고해상도 위성 영상을 이용하여 식생도 제작 기법을 연구하는 것이며, 식생도에는 활엽수, 혼효림, 침엽수의 군집 경계를 표현하고자 하였다. 본 연구는 고해상도 위성영상을 활용하여 객체지향분류 기법을 적용하였다. 객체지향 분류기법은 크게 세그멘테이션의 과정과 세그멘트를 분류하는 과정으로 나눌 수 있다. 세그멘테이션 과정을 통해서 식생군집의 경계를 추출하고, 영상을 이용하여 상록침엽수를 분류하여 식생조사시 침엽수군락의 위치를 파악함으로써 조사의 효율성을 증대하였다.

• Journal of Wetlands Research
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• v.13 no.3
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• pp.535-545
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• 2011

This study was carried out to suggest the baseline data necessary for vegetation restoration by naturalness assessment of riverine wetland within stream corridor. We selected stream reach both of near nature and urbanized by Nonsan stream and Hongchun river as experimental site. Composition of vegetation community and land use pattern between two sites indicated considerable difference, which imply for many different watershed property and process disturbed each other at river ecosystem. Naturalness of the sampled reaches showed that near nature is in better condition for riverine wetland than urbanized of all two sites. However, the prevalence index of Hongchun river within its natural state was lower than that of Nonsan stream, because the index included some vegetation communities occurred at upland fringe and bank slope. In conclusion assessment system using prevalence index would be considered an effective method for evaluating of natural states of riverine wetland.

• Weed & Turfgrass Science
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• v.6 no.1
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• pp.40-54
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• 2017

The mound grave of Korean traditional funeral culture is a unique habitat which is a Zoysiagrass lawn being sustainable in proper management. We phytosociologically described an unusual Zoysiagrass vegetation with Gueldenstaedtia verna by the Zürich-Montpellier School's method and analyzed eco-floristic characteristics. A new association, Gueldenstaedtio-Zoysietum japonicae ass. nov. hoc loco, was identified and subdivided into festucetosum ovinae, typicum, and trifolietosum repensae. The subassociations were distinguished by the difference in species composition resulting from site accessibility and lawn management method. The association was assigned as not only a regional but also a locally-limited vegetation type, which distributes on a particular microhabitat with strong continentality in the Daegu regional subdistrict of Bioclimatological division. The Zoysiagrass vegetation of Korea was considered as a continental type apparently different from the oceanic type of Zoysion japonicae (Miscanthetea sinensis, Caricetalia nervatae). Mound graves in Korea should be acknowledged as a meaningful habitat for the in-situ conservation of biodiversity and phytocoenosen, despite being a secondary grassland of Gueldenstaedtio-Zoysietum japonicae.

• Korean Journal of Environment and Ecology
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• v.1 no.1
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• pp.1-23
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• 1987

To investigate the forest structure of Mt. Bukhan. ranging from Seoul to Kyongkido, twenty plots were set up by the vegetation physiognomy and vegetation analysis was carried out. According to the leading dominant tree species in canopy stratum, forest communities were classified into three large groups of natural forest communities, semi-natural forest communities and artificial forest communities, and each of them covered 82.64, 7.03, and 5.71% of Mt. Bukhan area, respectively. Pure or mixed natural forest communities of Pinus densiflora and Quercus mongolica were major forest communities and covered 70.8% of Mt. Bukhan area. The important planted tree species were Robinia pseudoacacia, Pinus rigida, and Alnus birsuta and they were mainly planted at the southern slope and roadside. The degree of human disturbance of vegetation of 8, 7, and 6 area covered 82.64, 0, and 12.74%, respectively. According to forest dimensions, most of forest communities were young aged forests of which mean DBH was 20cm and canopy height below 10m. However, a few mature forest communities of Pinus densiflora or Quercus mongolica were found in the small area. The range of Shannon's species diversity of major natural forest communities, pure or mixed forest communities of Pinus densiflora and Quercus mongolica was 1.085~1.242. According to stand dynamic analysis by DBH class distribution, the present Quercus mongolica communities arid Robinia pseudoacacia communities may last long their present forest structure and most of other communities may be succeeded to Quercus mongolica communities, however, a few communities invaded by Robinia pseudoacacia and Quercus aliena-Quercus acutissima communities may be succeeded to Robinia pseudoacacia communities and Quercus aliena communities, respectively. DCA was the most effective method of this study. DCA ordination were showed that successional trends of tree species seem to be from Pinus densiflora through Quercus serrata. Prunus sargrntii. Sorbus alnifolia to Q. mongolica. Fraxinus mandsburica, F. rhynchophylla in the upper layer and from Zanthoxylum schinifolium, Lespedeza crytobotrya trough Rhus trichocarpa. Rh. verniciflua. Rhododendron mucronulatum. Rh. schlippenbachii to Acer pseudo-sieboldianus. Magnolia sieboldii, Euonymus sieboldianus.

• Korean Journal of Environment and Ecology
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• v.13 no.4
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• pp.354-366
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• 2000

지리산국립공원 대원계곡의 삼림군집구조를 분석하여 국립공원관리의 기초자료를 제공하기 위하여 기조사지역(이경재 등, 1991)이외의 지역에 대해 39개 조사지(100m2)를 설정하고 식생조사를 실시하였다 Classification의 한 기법인 TWINSPAN을 사용하여 군집을 분리하였으며 그 결과 느릅나무-굴참나무군집(군집 I) 졸참나무-굴참나무군집(군집II) 졸참나무군집(군집III-V) 신갈나무군집(군집VI) 그리고 서어나무-노각나무군집(군집VII)의 7개 군집으로 나뉘었다 각 군집에 대해 우점도 종다양도 유사도 종수 및 개체수 그리고 흉고직경 등의 분석을 통해 군집의 종조서을 살펴본 결과 지리산 대원계곡의 삼림은 졸참나무 굴참나무 신갈나무 등의 참나무가 주류를 이루고 있었으며 점차 서어나무와 노각나무등으로 천이가 진행되어갈 것으로 판단되었다.

• Journal of Korean Society of Forest Science
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• v.98 no.3
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• pp.339-350
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• 2009

This study was carried out to investigate distributional condition of rare plants and useful plant resources, and to verify distributional patterns of understory vegetation associated with the upper layer's vegetation structure. Total 59 families, 160 genera, 218 kinds of vascular plants were identified at the study site including 6 rare plants designated by Korea Forest Service (Lloydia triflora Bak., Trillium kamtschaticum Pall., Lilium distichum Nakai, Anemone koraiensis Nakai, Iris odaesanensis Y.N. Lee, Viola diamantica Nakai). Twenty three species of useful plant resources were also identified at the site; 8 of them showed clustered distributions and the others were prone to scatter. Actual vegetation of this study area consisted of one natural community dominated by Quercus mongolica Fisch. and three disturbed communities of Larix kaempferi (Lamb.) Carriere, Abies holophylla Max. and/or a herbaceous vegetation resulting from forest removal and strong wind of mountain top. This classification was strongly supported by cluster analysis based on the surveyed plot data. Distributional patterns of understory vegetation within forest stand were somewhat related to overstory vegetation structure, but showed a different tendency according to site condition, species composition, and competitive pressure among understory vegetation. Therefore, in order to protect the important understory components as forest genetic resources, forest treatments such as density control of overstory should be implanted based on understanding of impact on understory's dynamics and growing condition.