• Journal of Bio-Environment Control
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• v.21 no.1
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• pp.66-73
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• 2012

This study was conducted to develope new indoor plants and to investigate the effects of light intensity on the growth of $Distylium$ $racemosum$, $Osmanthus$ $heterophyllus$ and $Damnacanthus$ $indicus$ under 100 lux, 1,000 lux and 2,500 lux fluorescent lighting for six months in the environment-controlled growth chambers. 1. $Distylium$ $racemosum$ : Most of $Distylium$ $racemosum$ under 100 lux light intensity were blighted in two months, whereas it was 100% of survival under 1,000 lux and 2,500 lux after six months. Plant height, number of leaf, leaf width and leaf length became higher as light intensity increased. The plants maintained under 2,500 lux showed the greatest plant height and leaf number. 2. $Osmanthus$ $heterophyllus$ : $Osmanthus$ $heterophyllus$ under 100 lux light intensity were blighted in two months, whereas it was 100% of survival under 1,000 lux and 2,500 lux after six months. However, under 1,000 lux, it paused plant height and was not increased in leaf number any more. A plant growth status showed the highest value under 2,500 lux in all conditions. 3. $Damnacanthus$ $indicus$ : $Damnacanthus$ $indicus$ was defoliated and blighted under 100 lux light intensity in two months, whereas it was grown properly with 1,000 lux or above. However, the growth under 2,500 lux of $Damnacanthus$ $indicus$ was superior to other treatments. But, $Damnacanthus$ $indicus$ under 1,000 lux after 6 months was more favorable chlorophyll contents, leaf length and leaf width than 2,500 lux. As increasing slightly of chlorophyll contents and leaf growth under 1,000 lux, $Damnacanthus$ $indicus$ could be utilized highly to the indoor ornamental plant.

• The Korean Journal of Ecology
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• v.4 no.3_4
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• pp.80-92
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• 1981

The vegetation of Saeng-il Island was surveyed over four times from July, 1979 to May, 1981. The results obtained are summarized as follows: Plants of this island consisted of 3 foma, 28 varieties, 211 species, 203 genera, and 89 families. Evergreen broad-leaved trees consisted of 24 species, including Camellia japonica and Castanopsis cuspidata var. sieboldii. The vegetatiion of the southwest slope was more favorable than that of the northeast slope and the vegetation of other areas were negligible. Pueraria thunbergiana and Clerodendron trichotomum were predominant in the area between Yucheon-ri and Geummo-ri. Evergreen broad-leaved trees, such as Camellia Japonica, Neolitsea sencea, Castanopsis cuspidata var. sieboldii, etc. were predominated in the areas of Gulzeon-ri, Yongchul-ri and Geummo-ri. However, artificial succession to pinus thunbergii presently dominating the areas has taken place due to human interferences (for charcaol, building materials, grazing etc.). It seems to be worthy of conserving the community of Camellia japonica on the back slope of Geummo-ri and that of Castanopsis cuspidata var. sieboldii between Gulzeon-ri and Hangdo-dong. It is notceable, in particular, that Damnacanthus indicus distributed in Jeju and Dolsan islands was also discovered in this island.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2018.10a
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• pp.61-61
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• 2018

한경 곶자왈 산림유전자원보호구역은 개가시나무와 백서향 등을 포함한 암괴지대의 상록활엽수림으로서 그 중요성이 인정되어 산림유전자원 생태보전지역으로 지정 관리되고 있다. 따라서 본 지역의 식물상을 조사하여 곶자왈의 분포식물을 파악하고자 실시하였다. 본 연구는 한라산 서쪽 곶자왈지역 중 곶자왈 산림유전자원 보호구역으로 지정된 지역을 2017년 6월부터 2017년 9월까지 20여 차례 현장조사를 통하여 표본을 수집하고 이를 기록 정리하였다. 조사지역의 식물은 총 83과 181속 236종 23변종 2품종 총 261종으로 조사결과 양치식물이 7과 18속 30종 2변종 32분류군, 나자식물이 1과 1속 2분류군, 피자식물은 74과 162속 204종 21변종 2품종 227분류군 이었다. 그 중 쌍자엽식물은 67과 139속 179종 16변종 1품종 196분류군이고, 단자엽식물이 7과 23속 25종 5변종 1품종 31분류군이었다. 조사에서 확인된 환경부 멸종위기야생식물은 개가시나무 1종 이었다. 식물 구계학적 특정식물로는 총 97분류군이 조사되었다. 등급별로는 V등급 검정개관중, 개가시나무로 2분류군, IV등급 백서향, 녹나무 등 12분류군, III등급 아왜나무, 호자나무 등 37분류군, II등급 올벚나무, 개산초 등 13분류군, I 등급 푸조나무, 자금우 등 33분류군으로 확인되었다. 한국의 적색목록 식물을 분석해보면 취약(VU)은 개가시나무, 섬다래 등 3분류군, 준위협(NT)은 백서향, 약난초로 2분류군, 관심대상종(LC)은 골고사리, 새우난초 등 9분류군, 미평가종(NE)은 빌레나무 1분류군으로 나타났다. 이 결과는 청수 저지 곶자왈 지역의 생태학적 자료로 제주도 내 곶자왈과 비교하였을 때 맹아가 발달한 종가시나무가 우점하는 지역으로 향후 상록수림 천이에 의해 상록수 아래에 자라는 식물로 낙엽활엽수가 대체될 것으로 추정되어 지속적인 조사가 요구된다.

• The Korean Journal of Ecology
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• v.4 no.1_2
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• pp.8-24
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• 1981

This paper contains the results obtained by ecological investigation of flora in Sogumoon Island of the southern coast in Korea. Fifty varieties, 455 species, 322 genera and 104 family of Tracheophyta were recorded island showed a plant community predcominated by Pinus thunbergii grwon in miggle with Castanopsis cuspidata var. sieboldii, Machilus thunbergii, Litsea japonica, Albizzia julibrissin, Carpinus coreana, Carpinus laxiflora, Mallotus japonica and Clerodendron trichotomum. Sixtythree species in Sogumoon Island and 64 species in Pogil Island of evergreen broad-leaved trees were recorded by this investitgations. The plant resources of this island were 203 species. The evergreen broad-leaved trees of this island wre valuable for landscaping material plants and the evergreenherbs were valuable for foliage-plants resources. The flora breaking in this island was due to cuttinf for fuel and grazing cattle and goats. Therefore Machilus thunbergii, Ardisia japonica, Ficus miponica, Kadsura japonica, Daphniphyllum macropodum, etc. should be preserved. Autochonous flora of Buxus microphyllac, Fius erecta, Machilus thunbergii, Kadsura japonica, Ardisia japonica, Mitchella undulata, etc. should be preserved.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.04a
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• pp.74-74
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• 2019

한라산은 남한에서 가장 높은 산으로 해발고도는 1,950m이고 그 면적은 약 9,100ha로 대한민국 최대의 섬제주의 중심에 자리하고 있다. 한라산은 특산식물이 36종이나 발견되어 국내 외적으로 생물적인 가치와 보전적인 가치를 인정받아온 곳이다. 본 연구에서는 한라산 성판악에서 백록담으로 이어지는 동사면의 해발고도 1,500m 부근의 진달래밭대피소 인근에 위치한 5ha 장기생태 연구 지역 식생조사를 통해서 조사된 자생 식물종을 정리하였다. 관속식물은 31과 44속 56종 등 총 56분류군으로 조사되었으며, 조사지역에서 확인된 산림청지정 희귀식물은 구상나무(LC), 주목(VU), 섬매발톱나무(DD), 개족도리풀(LC), 시로미(VU), 게박쥐나물(LC), 사철란(LC) 등 7분류군이 확인되었고, 특산식물로는 구상나무, 족도리풀, 제주조릿대, 산제비란 등 4분류군이 확인되었다. 식물구계학적 특정식물은 I등급은 일엽초, 윤노리나무, 야광나무, 큰천남성 등 6분류군, II등급으로는 두루미꽃, 홍괴불나무, 마가목, 산개벚지나무, 다람쥐꼬리 등 10분류군, III등급은 만년석송, 구상나무, 애기괭이밥, 호자덩굴 등 8분류군, IV등급은 시로미 그리고 V등급은 설앵초가 각각 1분류군으로 조사되었다. 한라산 아고산대의 대표 우점종인 구상나무는 특산식물이자, 식물구계학적 특정식물 III등급이며, 산림청지정 희귀식물 약관심종으로 추가 연구를 통하여 보전관리방안이 수립되어야 하는 것으로 판단된다.

• Korean Journal of Environment and Ecology
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• v.33 no.6
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• pp.686-694
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• 2019

This study was carried out to identify the long-term changes to beech forest due to climate change in Ulleung-do. To study the traits of the stand structure of beech forest with micro-topography, we investigated the distribution of the basal area, important values, and indicated species in a small ridge between Albong basin and Seongin-bong peak, and 1-ha stands (20 m × 20 m, 25 sites) dominated beech species including on the upper slope and valley parts. The result showed that the indicator species characterizing the vegetation communities were Tsuga sieboldii, Rhododendron brachycarpum, and Mitchella undulata in the small ridge and Celtis jessoensis, Dryopteris crassirhizoma, and Ulmus laciniata in the valley part. Moreover, the individuals with the total DBH < 10 cm were more predominant in the small ridge and upper slope than in the valley part, the individuals with DBH = 10-25 cm were predominant in the small slope, and individuals with DBH = 25-45 cm and DBH > 45 cm were predominant in the upper slope. The reason for the predominant distribution of beech stand with DBH<10 cm in all terrains is suggested to be germination by nutritional propagation rather than secondary succession caused by artificial disturbances and seed propagation.

• Journal of Environmental Impact Assessment
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• v.26 no.5
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• pp.365-375
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• 2017

This study investigated in the vascular plants of special protection zones (the native land of Iris koreana in Gaeamsa Temple and Soeppulbawi Rock) of Byeonsanbando National Park and identified the whole flora. The numbers of vascular plants were summarized as 255 taxa including 71 families, 166 genera, 222 species, 2 subspecies, 27 varieties and 4 forms. Woody plants were identified as 114 taxa (44.7%) and herbaceous plants as 141 taxa (55.3%). A total of 178 taxa were identified in the area of Gaeamsa Temple, and 184 taxa were found in the Soeppulbawi Rock. As a legal protected species, the endangered wild plant II grade Iris koreana designated by the Ministry of Environment was confirmed. A total of 6 taxa of rare plants were identified, each of which was divided into 1 taxa of critically endangered (CR; Iris koreana), 1 taxa of vulnerable (VU; Ilex cornuta), and 4 taxa of least concern (LC; Asarum maculatum, Viola albida, Chionanthus retusa and Tricyrtis macropoda). The Korean endemic plants were 11 taxa (Populus tomentiglandulosa, Lonicera subsessilis, Carex okamotoi, etc.). In the specific plants by floristic region were 38 taxa, a degree I were 23 taxa (Euscaphis japonica, Hedera rhombea, Lophatherum gracile, etc.), 7 taxa of a degree II (Viola violacea, Ainsliaea apiculata, Cephalanthera falcata, etc.), 6 taxa of a degree III (Ilex cornuta, Callicarpa mollis, Mitchella undulata, etc.), 1 taxa of a degree IV (Carex remotiuscula), 1 taxa of a degree V (Iris koreana). The Iris koreana special protection area that is more natural and healthier than any other areas in Byeonsanbando National Park. Therefore, it should be possible to continue its role as a special protection area through regular monitoring in the future.