• 한국환경과학회지
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• 제22권2호
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• pp.139-149
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• 2013

Anthropogenic increases in greenhouse gas concentrations, primarily through radiative forcing from carbon dioxide, continue to challenge earth's climate. This study quantified $CO_2$ storage and uptake by dominant forest types and age classes in the middle region of Korea. In addition, the role of forest landscapes in reducing atmospheric $CO_2$ against $CO_2$ emissions based on energy consumption was evaluated. Mean $CO_2$ storage and uptake per unit area by woody plants for three forest types and four age classes were estimated applying regression equations derived to quantify $CO_2$ storage and uptake per tree; and computations per soil unit area were also performed. Total $CO_2$ storage and uptake by forest landscapes were estimated by extrapolating $CO_2$ storage and uptake per unit area. Results indicated mean $CO_2$ storage per unit area by woody plants and soils was higher in older age classes for the same forest types, and higher in broadleaved than coniferous forests for the same age classes, with the exception of age class II (11-20 years). $CO_2$ storage by broadleaved forests of age class V (41-50 years) averaged 662.0 t/ha (US$331.0 hundred/ha), highest for all forest types and age classes evaluated. Overall, an increased mean $CO_2$ uptake per unit area by woody plants was evident for older age classes for the same forest types. However, decreased $CO_2$ uptake by broadleaved forests at age class V was observed, compared to classes III and IV with an average of 27.9 t/ha/yr (US$14.0 hundred/ha/yr). Total $CO_2$ storage by woody plants and soils in the study area was equivalent to 3.4 times the annual $CO_2$ emissions, and woody plants annually offset the $CO_2$ emissions by 17.7%. The important roles of plants and soils were associated with 39.1% of total forest area in South Korea, and $CO_2$ emissions comprised 62.2% of the total population. Therefore, development of forest lands may change $CO_2$ sinks into sources. Forest landscape management strategies were explored to maintain or improve forest roles in reducing atmospheric $CO_2$ levels.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2005년도 춘계 학술발표대회
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• pp.94-95
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• 2005

• 한국환경복원기술학회지
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• 제6권5호
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• pp.48-58
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• 2003

This study was carried out to select proper species for early stage replantation in granite forest road cut-slope. From one to thirteen year elapsed forest roads in five regional areas of Chungcheong-do and Kyungsangbuk-do, sample plots were selected, and their vegetations and environmental factors were investigated. Soil organic matter, total nitrogen, soil moisture content, and bulk density in the granite weathering soils were below 0.5%, 0.02%, 10%, and above 1.2g/$cm^3$, respectively. The environmental factors affecting distribution of species in the granite forest road were the elapsed year, elevation, cut-slope aspect, and cut-slope. Sowing plants of Dactylis glomerata, Lolium perenne, and Eragrostis curvula were found in the early stage of forest road-cut. Annual herbs of Youngia denticulata, Erigeron annuus, etc. were found in the 2-3 years elasped forest road-cut. Perennial herbs of Artemisia princeps var. orientalis, Miscanthus sinensis, etc., parachute woody plants of Weigela subsessilis, Pinus densiflora, etc., and gravitative trees of Prunus sargentii, Lindera obtusiloba, Quercus sp., etc. were found in the forest road cut-slope after 3 years of road-cut. Leguma of Lespedeza cureata, Amorpha fruticosa, Lespedeza bicolor, Pueraria thunbergiana, Albizzia julibrissin, etc., herbs of Artemisia keiskeana, Artemisia princeps var. orientalis, Miscanthus sinensis, etc., and woody plants of Rubus crataegifolius, Weigela subsessilis, Zanthoxylum schinifolium, Pinus densiflora, etc. were considered as proper species for replantation in granite forest road cut-slope.

• Journal of Forest and Environmental Science
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• 제37권4호
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• pp.323-330
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• 2021

Zygotic embryo culture was performed to propagate evergreen oak, Quercus myrsinifolia, which has recalcitrant seeds and is difficult to propagate by cuttings. Zygotic embryos appeared in WPM medium after 14 days, and after 56 days, they developed into complete plants with cotyledons and roots. The medium suitable for zygotic embryo culture was 1/4 WPM medium, showing a shoot growth of 2.43 cm and root growth of 8.7 cm after 8 weeks of culture. As a result of investigating the effect of GA₃ on the growth of plants germinated from zygotic embryos through GA₃ treatment, the best growth was shown in 0.5 mg/l GA₃ treatment. The in vitro rooting and growth of IBA-treated zygotic embryo-derived plants were good in the 0.5 mg/l IBA treatment and rooting and shoot growth were not observed at higher concentrations. And the callus induction rate also increased as the concentration of IBA increased. Plants grown in vitro were transferred to a plastic pot containing artificial soil and acclimatized in a greenhouse for about 4 weeks, resulting in more than 90% survival. As a result of this study, the zygotic embryo culture method was confirmed to be effective for mass propagation of Q. myrsinifolia. The results of this study are expected to contribute significantly to the mass propagation of elite Q. myrsinifolia.

• Journal of Forest and Environmental Science
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• 제36권4호
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• pp.274-280
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• 2020

As the importance of biological resources increases, the conservation technology is becoming important for rarities. This study was conducted to establish an efficient cryopreservation conditions for the Deutzia paniculata, endangered plant species, by using both cryopreservation methods of vitrification and encapsulation. As a result, the sucrose pretreatment seed viability showed up to 30.7% in the treatments. The cryoprotectant treatment improved the viability of the seeds, and was found to be excellent in the vitrification method using PVS3. The vitrification method had over 10% higher germination rate than the seeds preserved by encapsulation. In addition, the germination rate showed a significant difference according to the cryopreservation treatment time, and the germination rate of seeds decreased very much as the long time became longer. Plants germinated from preserved seed in liquid nitrogen showed poor growth compared to untreated, and good growth in PVS3 120 minutes. In addition, the growth of germinated plants by liquid nitrogen treatment time was better in the vitrification method. These results are expected to be useful for long-term preservation of D. paniculata, endangered plants.

• 한국자원식물학회지
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• 제30권4호
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• pp.410-426
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• 2017

충청남도 태안군에 위치한 안면도에 대한 식물상을 파악하기 위하여 2015년 6월부터 2016년 10월까지 현지조사를 수행하였다. 현지조사를 통해 확보된 석엽표본을 바탕으로 안면도의 관속식물 119과 400속 632종 5아종 73변종 7품종 등 총 717분류군이 확인되었다. 확인된 관속식물 중, IUCN 평가기준에 따른 산림청 지정 희귀식물은 멸종위기종(CR) 3분류군, 위기종(EN) 1분류군, 약관심종(LC) 6분류군, 취약종(VU) 7분류군 총 17분류군이 확인되었다. 식물구계학적 특정식물은 V등급에 먹넌출, 초종용 등 5분류군, IV등급에 맥문아재비, 왕김의털 등 13분류군, III등급에 모감주나무, 병풀 등 30분류군을 포함하여 총 99분류군이 확인되었다. 조사지역내에서 특산식물은 개나리와 태안원추리등의 6분류군이 확인되었으며, 귀화식물은 애기수영, 개비름, 백령풀 등을 포함한 91분류군이 확인되었다.

• 한국자원식물학회지
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• 제25권1호
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• pp.31-47
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• 2012

본 연구는 2008년과 2010년에 걸쳐 3차례 식물상을 조사하였으며, 전체 조사된 분류군은 90과 269속 351종 3아종 43변종 6품종등 403분류군이 확인되었다. 주요 식물들로 특산식물이 서울제비꽃 등 2분류군이 확인되었고, 산림청지정 희귀 및 멸종위기 식물이 대청부채(CR) 등 8분류군, 환경부 지정 특정식물은 금방망이(V) 등 35분류군으로 나타났다. 또한 식물지리학적 분포특성에 있어 남방계 식물과 북방계식물이 함께 확인되었다. 귀화식물은 대청가시풀 등 40분류군이 확인되었으며, 한반도 미기록종인 대청지치가 새로이 발견되었다.

• 한국환경생태학회지
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• 제29권6호
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• pp.819-841
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• 2015

본 연구는 소백산맥 중 덕유산과 백운산의 사이에 위치한 할미봉(1,026m)과 구시봉(1,014m)을 대상으로 주요 관속식물상을 파악하여 주요식물에 대한 효율적인 관리와 보전 및 그 일대 식물자원의 기초자료를 제공하기 위해 수행하였다. 현지조사는 2013년 3월부터 2014년 3월까지 계절별 조사를 실시하였으며, 조사경로는 계곡부, 능선부, 사면부 등을 포함하여 조사를 실시하였다. 조사 결과 할미봉과 구시봉 일대에서 출현한 관속식물은 총 95과 287속 454종 4아종 59변종 11품종 528분류군이 조사되었다. 희귀식물은 EN등급(위기종) 1분류군(흰참꽃나무), VU등급(취약종) 2분류군(쇠채, 솔나리), LC등급(약관심종) 12분류군(구상나무, 매미꽃, 태백제비꽃 등) 총 10과 14속 13종 2변종 15분류군이 조사되었다. 특산식물은 처녀치마 등 15분류군이 나타났다. 식물구계학적 특정식물 V등급은 승마 등 2분류군, IV등급은 개대황 등 6분류군, III등급은 거제수나무 등 12분류군이 각각 출현하여 I등급부터 V등급까지 총 32과 52속 58종 1아종 2변종 61분류군이 출현하였다. 귀화식물은 소리쟁이, 족제비싸리, 선개불알풀 등 23종이 출현하였다.

• International Journal of Industrial Entomology and Biomaterials
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• 제30권2호
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• pp.31-39
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• 2015

Antheraea mylitta Drury (Lepidoptera: Saturniidae) is a commercial silk producing forest insect of India, but it has never been experimented in Uttarakhand state in spite of the huge availability of its forestry host plants. This is the first study on A. mylitta in Uttarakhand. The goal of this study is to introduce forest based commercial rearing of A. mylitta, in tropical forest areas of Uttarakhand to reduce poverty among forest dependent people. In current study, we assessed the effect of seven forest tree species, rearing seasons, and their interactions on cocoon productivity of Daba (bivoltine) ecorace of A. mylitta in the New Forest of FRI, Dehra Dun during 2012 and 2013 and collected the data that was analysed by two-way completely randomized block factorial design. Post HOC Tukey's HSD test was carried out to compare the homogeneous pairs of means. We also carried out Evaluation Index analysis to rank the tested forestry host plants for better growth and development of A. mylitta under the climatic condition of Uttarakhand. Analysis of variance indicated that cocoon yield of A. mylitta differed significantly between rearing seasons (DF=1, F=88.24, p<0.05) and host plants (DF 6, F= 368.63, p<0.05); however, their interactions were found insignificant (DF=6, F=0.99, p>0.05). In first rearing season of July-August, there was higher cocoon yield than the second season of September-November. Results indicated that Terminalia alata fed larvae showed significantly higher cocoon yield (164.11 cocoons/300 larvae); followed by, T. tomentosa (148.89 cocoons), T. arjuna (140.00 cocoons) and Lagerstroemia speciosa (129.47 cocoons) fed larvae. Whereas, Lagerstroemia tomentosa fed larvae that was used by the first time in India, showed lowest cocoon yield (48.81 cocoons), followed by T. chebula (72.53 cocoons) fed larvae. Cocoon yield of T. tomentosa and T. arjuna fed larvae of A. mylitta did not differ significantly with each other.

• 한국조경학회지
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• 제32권5호
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• pp.102-118
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• 2004

The purpose of this study was to propose an ecological management plan by the comprehensive analysis of biotope structures on Namsan Urban Natural Park in Seoul. Classified by actual vegetation, structure of layer and vegetation damage, biotope structures were composed of forest area, compact management area, herb area, cultivated area and non-ecology(urban) area. Succession had seened to stop in the Native forest. Artifical forest was divided into two types. The first, upper layer, was too dense to accommodate lower layer plants, the other case was the appearance of Quercus spp. and the first stage plants of succession following the declination of the upper layer plants. The soil pH of Nam-san Urban Park was 4.21∼4.51, which meant the soil was becoming acid. As the result of acidity, leaching of available nutrition(K/sup +/, NH₄/sup +/, Ca/sup ++/ etc.) was immediately influenced by the natural ecosystem, influence of acid rain was disturbed to becoming organic matter which was use to plants. In the case of a biotope structure management plan, the urban area was prohibited to spread outside. Cultivated and herb area was regenerated to natural forest. In the forest area, the compact management area was maintained with its present condition, and then it is desirable to make a preservation area and to plant shrubs. Planted Pinus densiflora Community was needed to eliminate competitive species of canopy layer, and plant shrubs. Management of deciduous broad-leaved Comm. was maintained in its present conditionand it is desirable to raise the diversity of the understory and shrub layer. The management of the artifical forest seems to be suitable for Q. spp. community. The care of naturalized plants prevents the expansion and restores the structure of wild plants. The soil management was a marked restoration soil ecosystem in order to prevent soil acid and drying.