• Korean Journal of Environment and Ecology
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• v.14 no.1
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• pp.67-79
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• 2000

지리산국립공원 동부지역의 해발고와 사면에 따른 식물군집구조를 파악하기 위하여 1999년 7월에 49개의 조사구(20m$\times$15m)를 설치하여 조사하였다 해발고가 올라감에 따라 북사면에 위치한 조사구에서는 구상나무와 신갈나무의 평균상대우점치가 증가하였고 천왕봉 해발 1,700m이상 지역에서는 가문비나무가 우점종이었으며 해발고가 올라갈수록 상대우점치는 증가하였다 반면 남사면에 위치한 조사구에서는 해발고가 올라감에 따라 신갈나무의 평균상대우점치는 감소하였고 구상나무의 평균상대우점치는 증가하였다 해발고에 따른 북사면과 남사면의 종수와 개체수는 북사면에서보다 남사면에서 많았고 입지환경과 종간상관관계에서는 가문비나무 신갈나무, 잣나무가 해발고와 정의 상관관계를 나타냈으며 서어나무는 부의 상관관계를 나타내었다 동일 해발고에서도 사면상 위치에 따라 식물군집구조 및 종구성의 차이를 나타내었다.

• Korean Journal of Environment and Ecology
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• v.13 no.4
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• pp.330-339
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• 2000

지리산 국립공원의 동부지역을 대상으로 구상나무개체군 동태를 파악하기 위하여 1999년 7월에 49개의 조사구(20m$\times$15m)를 설치하여 식생구조를 조사하였다. 조사대상지의 구상나무는 북사면에서 해발 900m 이상 남사면에서 해발 1,000m 이상에서 분포하였다 구상나무의 상대우점치는 북사면의 경우 해발 1,300-1,500m 사이에서 높게나타났으며 남사면의 경우 해발 1,400-1,600m 사이에서 높게 나타났다. 조사구별 구상나무의 상대우점치는 북사면에서 높게 나타났으나 흉고직경 2-17m 미만의 개체수 경우 북사며에서보다 남사면의 조사구에서 많이 나타났고 대경목은북사면에서 많이 나타났다.

• Korean Journal of Environment and Ecology
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• v.17 no.4
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• pp.316-323
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• 2004

In order to monitor the vegetation restoration in the evergreen broad-leaved forest, eighteen experimental plots including control plots were established at Wando Arboretum in 1996. Several treatments such as density control, selective cutting and warm temperate species planting were done in the experimental plots. Seven years after the restoration experiments, the important percentage of Quercus acuta showed a tendency to a higher increase in the experiment plots than control plots in Q. Acutu. Also the important percentage of Q. Acuta in Q. acute Carpinus tschonoskii community increased in the tree layer. Pinus densiflora community was increased highly in important percentage of Q. Acuta, As a whole, vegetation structure in the experiment plot showed successional stage to Q. Acutu community. In addition, important percentage of evergreen broad-leaved trees and shrubs and number of warm temperate species and basal area were increased in the experiment plots while the introduced evergreen broad-leaved trees were declined.

• Korean Journal of Agricultural Science
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• v.8 no.1
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• pp.11-17
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• 1981

The study was carried out to investigate the distribution and composition of community of Stewartia koreana in Temple Huibang and Mt. Sogri. The results obtained were as follows: 1. Within the forest floor cover species of the Temple Huibang forest, higher importance value were observed as Calamagrostis arundinacea. Sasa borealis. Lindera erythrocarpa and Lindera obtusiloba 2. In the forest floor cover species of Mt. Sogri forest, higher importance value were observed as Sasa borealis and Acer pseudo-sieboldianum var. koreanum 3. Within the floor cover species under Stewartia koreana forest, higher importance value were observed as Sasa borealis. Acer pseudo- sieboldianum var. koreanum and Calamagrostis arundinacea 4. Under shrub layer of Stewartia koreana stands, 73% of Sasa borealis and Calamagrostis arundinacea in Temple Huibang and 93% of Sasa borealis in Mt. Sogri were counted respectively as dominant species. Therefore, it might be necessary to control such dominant undergrowing species for natural reproduction of Stewartia koreana 5. In the Temple Huibang sites, by 700m Sasa borealis and 800m Calamagrostis arundinacea were grown as dominant species.

• Korean Journal of Environment and Ecology
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• v.4 no.1
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• pp.63-68
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• 1990

User's impacts on trail deteriorations and edge vegetation were studied in Sokri Mountain National Park in 1990. The entire width, bare width and maximum depth of trail as the trail condition were significantly greater on the more heavily used trail. Deteriorations of trail which were surveyed at the total of 52 were significantly different from those of non-deteriorated points. The dominant trees in the crown layer of trail edge are as follows. According as the altitude rises, the changes happen from Quercus serrata to Quercus variabilis, Pinus densiflora, and to Quercus mongolica at Joongsajaam course, and from Pinus densiflora, Quercus variabilis to Quercus mongolica at Birosanjang course. And Stephanandra incisa, Symplocos chinesis for. pilosa show high relative dominant value at Joongsajaam course, Lindera obtusiloba, Fraxinus sieboldiana show one at Birosanjang course.

• Korean Journal of Environment and Ecology
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• v.18 no.2
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• pp.142-149
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• 2004

To investigate the vegetation structure of subalpine region from Hyangjeukbong to 2nd Deogyusan, 20 plots(100$m^2$) set up with random sampling method were surveyed. Three groups Quercus mongolica community, Betula ermanii - Picea jezoensis - Taxus cuspidata community, Taxus cuspidata - Qurecus mongolica - Betula ermanii community were classified by cluster analysis. Quercus mongolica, Taxus cuspidata and Betula ermanii were found as a major woody plant species in the subalpine region from Hyangjeukbong to 2nd Deogyusan. In this area, Korean endemic species, Abies koreana was distributed small amounts. In future, importance percentage of Abies koreana might be decreased, but that of Betula ermanii might be increased. High positive correlations was proved between Betula ermanii and Rhododendron schlippenbachii, Rhododendron mucronulatum var. ciliatum ; Acer tschonoskii var. rubripes and Acer mono; Syringa velutina and Magnolia sieboldii and relatively high negative corrlations was proved between Betular ermani and Acer tschonoskii var. rubripes ; Quercus mongolica and Acer mono; Abies koreana and Tripterygium regelii, Weigela subsessilis. Species diversity(H') of investigated groups were ranged 1.0316∼1.1776 and it was similar to those of the ridge area of the national parks in Baekdudaegan.

• Korean Journal of Environment and Ecology
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• v.16 no.3
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• pp.309-320
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• 2002

In order to understand the condition of mostly-degraded evergreen broad-leaved forests(EBLF) and to make a restoration plan of EBLF in the Korean warm temperate, the distribution of EBLF and forest vegetation types have been investigated and the categories of degraded levels have been set. The coverage of the EBLF in the Korean peninsula was approximately 10,285ha based on the existing literature review and the actual vegetation map. Forest vegetation types have been investigated at thirty-two area of the south coast and inland in the warm temperate region. As a result, The forest vegetation was classified as 52 types; 26 types of EBLF, 13 types of semi-evergreen broad-leaved forests, 9 types of deciduous broad-leaved forests, 4 types of evergreen coniferous forests. The categories of degraded levels were divided into 8 levels and 14 sub-levels according to the importance percentage(I.P.) and the number of warm temperate species.

• Korean Journal of Environment and Ecology
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• v.28 no.1
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• pp.55-61
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• 2014

To examine the forest structure and variation of samara and leaf shape of Acer pictum subsp. mono (APSM), We investigated forest structure and samara angles and length, and leaf shape in three natural population of APSM in Yanggu-gun, Youngyang-gun and Kwangyang-si from June 2012 to October 2013. Mean importance percentage (MIP) of APSM is shown lower values in Yanggu 19.8%, in Youngyang 22.0%, and in Kwangyang 17.1%, respectively. In middle layer, importance percentage (IP) of APSM is shown lower values than that of Acer pseudosieboldianum and Carpinus cordata. In lower layer, importance percentage (IP) of APSM is shown lower values in Yanggu 1.8%, in Youngyang 1.9%, and in Kwangyang 0.0%, respectively. From these results, MIP of APSM in natural population might be reduced in future. Angles between wings and samara length are significantly different between districts. APSM with seven palmate vein leaf are distributed more frequently at Kwangyang and Youngyang than Yanggu. Percentages of biserrate leaf is shown in Yanggu 0.6%, in Youngyang 15.8%, and in Kwangyang 20.4%, respectively. These results implies genetic variation in natural APSM population and further studies on the genetic variation analysis in natuel population of APSM should be needed.

• Korean Journal of Environment and Ecology
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• v.26 no.5
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• pp.758-769
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• 2012

This study is aimed at analyzing the structural characteristics of vegetation in the Sangwonsa(Temple) valley, Yongmunsan(Mt.), and to collect basic data for research of large mountains which are located in the temperate, central region. The research on the entire vegetation struc trees are distributed over a wide area, accounting for 75.0% of theture of Sangwonsa(Temple) valley observed that oak total vegetation in the area. We examined 17 plots(unit area: $400m^2$) in the deciduous forest, dividing the trees into 5 community types based on the average important value. The 5 community types are as follows: A mixed dominant group of Carpinus laxiflora and Quercus serrata, a mixed dominant group of Quercus serrata and Quercus variabilis, a mixed dominant group of Quercus mongolica and Quercus serrata, a dominant group of Quercus serrata, a dominant group of Acer pictum supsp. mono. It is expected that the oak trees competing with Carpinus laxiflora and Acer pictum supsp. mono would flourish in a deciduous forest. The Shannon's species diversity index(H') was 0.3708~1.3083.

• Korean Journal of Environment and Ecology
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• v.24 no.5
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• pp.582-590
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• 2010

Baekdudaegan field survey has been proposed and presented as a various plan such as field survey analysis, management and restoration plan, etc. Whereas, the concerns of the Jeongmaek has increased continuously, nevertheless there is no research of present condition for Jeongmaek. This paper is to contribute to suggest for management and restoration as a basic study of vegetation structure in Yongso valley. We set up 30 plots($100m^2$) to verify the vegetation structure. As a result of classification analysis used by DCA, the type of 5 communities i.e. Pinus densiflora community, Betula schmidtii community, Populus maximowiczii community, Quercus mongolica community, Q. variabilis community were the most representative of Yongso valley vegetation communities. P. densiflora community was mainly distributed in the ridge of mountain, ridge of steep slope and stony area. In that reason, they avoid to compete with B. schmidtii community and Q. spp. community. In addition, the appearance of Rhododendron micranthum was mainly characteristics in the P. densiflora community. Species diversity indices(H') of groups were ranged from 0.7914~0.9942, the tree ages were 30~115 years. According to these results, the forests of Yongso valley not only form muti-layer vegetation structures but also have a great ecological value for protection and preservation.