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Flora of Samdasoo traking course in Jeju-do (삼다수 숲길의 식물상)

  • Jeong, Jun-Ho;Lee, Sunhee;Moon, Sung-Pil;Yoon, Suk-Jin;Kim, Ji Young;Song, Gwanpil
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2018.10a
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    • pp.55-55
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    • 2018
  • 한라산 동부지역에 위치한 삼다수 숲길은 삼나무, 편백나무, 곰솔림과 낙엽활엽수림으로 이루어진 숲이다. 현재 삼다수 숲길이 조성되어 관리되고 있으나 식물에 대한 정보가 거의 없는 실정으로 식물상을 조사하여 관리의 기초자료로 삼고자 수행하였다. 조사는 2018년 03월부터 2018년 08월까지 총 10회에 걸쳐 실시하였다. 조사 결과 삼다수 숲길에 생육하는 관속식물은 86과 183속 255종 11변종 4품종의 총 270분류군으로 조사되었다. 양치식물 12과 18속 30종 1변종 31분류군, 나자식물 2과 3속 3종 3분류군, 피자식물 72과 162속 222종 10변종 4품종으로 쌍자엽식물 64과 129속 176종 9변종 3품종 188분류군, 단자엽식물 8과 33속 46종 1변종 1품종 48분류군으로 구성되었다 이 중 한국특산식물은 5종, 제주특산식물 3종 외래식물이 13종 채집되었다. 식물구계학적특정식물은 5등급 3종, 4등급 11종, 3등급 23종, 2등급 12종, 1등급 26종 총 75종이 발견되었다. 국가 적색목록 식물은 위기(EN) 1분류군, 준위협(NT) 3분류군, 관심대상(LC) 4분류군, 미평가(NE) 2분류군이 조사되었다. 조사된 식물들의 휴면형은 H형이 62분류군으로 가장 많이 나타났고, MM형 40분류군, M형 31분류군, N형 29분류군, E형 3분류군, Ch형 22분류군, G형 51분류군, HH형 4분류군, Th형 28분류군으로 나타났다. 지하기관형은 R1 2분류군, R2 23분류군, R3 71분류군, R4 18분류군, R5 156분류군으로 R5가 57.85로 가장 높은 비율로 분포하였다. 산포기관형은 D4가 47.4%로 가장 높은 비율이였으며, 생육형(Growth form)은 직립형(e)이 53%로 가장 높은 비율로 분포 하였다.

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A Report on the Occurrence of and Crop Damage Caused by Hyphantria cunea (Drury) with in Korea (국내 미국흰불나방의 최근 발생 및 피해 보고)

  • Kim, Dong-Eon;Kil, Ji-Hyon
    • Korean journal of applied entomology
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    • v.51 no.3
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    • pp.285-293
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    • 2012
  • Occurrence Hyphantria cunea was confirmed in 35 cities and counties nationwide in 2011, each of which reported some form of crop and/or ecological damage caused by the moth. Only a larva of the black-headed form were reported to have occurred in the nation. H. cunea was found in street trees 66.7%, followed by landscape trees 19.4% and forests 13.9%. This suggests that artificial environment 86.1% suffered from H. cunea more severely than natural forests. The study identified 44 families and 102 species of host plants, and found an additional 29 species, to those which had been identified in previous studies. At present, the identified host plants of H. cunea are composed of 62 families and 219 species in total since their first appearance was reported approximately 50 years ago. Host plants include 5 species of food crops (2.3%), 6 species of vegetables (2.7%), 4 species of medicinal crops (1.8%), 1 species of industrial crops (0.5%), 13 species of fruit trees (5.9%), 6 species of other trees crops (2.7%) as well as a further 5 species of farmed crops (2.3%). Seven species of host plants (18.4%) originate from North America where Hyphantria cunea has been introduced from, while 11 species (29.0%) are from China and Japan, Europe and India were the native sources of (10.5%) of the origin with 4 species, respectively. Seventeen species of trees, including Platanus occidentalis L., Ulmus davidiana (var.) japonica (Rehder) (Nakai) and Cornus officinalis (Siebold & Zucc) were heavily noted to be heavily infected with larval populations.

Evaluation of Native Hydrophytes Suitable for Artificial Pond (자생 수생식물의 인공연못에의 이용성 평가)

  • Kim, Gui Soon
    • FLOWER RESEARCH JOURNAL
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    • v.16 no.1
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    • pp.63-70
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    • 2008
  • This experiment was conducted to acquire the basic data necessary for the artificial pond greening. Eighty four hydrophytes collected from 11 domestic small ponds and a farm were used in this experiment. The size of the artificial pond used was $6m{\times}3m{\times}1.5m(length{\times}width{\times}depth)$. Twelve months after planting, species were selected for their high ornamental values and tissue contents of N and P in each month. Tissue contents of N in Trapha nantan, Nymphoides indica, Nymphaea hybrid, and Murdannia keisak were high. Tissue contents of P in Monochoria vaginalis and Murdannia keisak were also high. The pH of artificial pond stabilized at a 6.8~7.6 range from May 2005 to March 2007. The EC was low in summer and high in autumn. From April to October, 5, 19, 23, 32, 31, 28, and 26 species, respectively, were selected for artificial pond greening. One year after planting, vegetation changed from 78 species (Potamogeton octqandrus, Salvinia natans, Potamogeton malaianus, etc.) to 38 species (Scirpus tarbernaemontani, Scirpus karuizawensis, Scirpus triqueter, etc.). Species diversity in the artificial pond was as follows, indicating it being a stabilized artificial pond; 38 species, 1,437 total number of plants, species richness index of 11.72, and maximum diversity index of 0.97.

Volatile Flavor Components of Soybean Paste(Doenjang) Prepared from Different Types of Strains (균주를 달리한 된장의 향기 성분)

  • Park, Jung-Suk;Lee, Myung-Yul;Kim, Kyong-Su;Lee, Taik-Soo
    • Korean Journal of Food Science and Technology
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    • v.26 no.3
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    • pp.255-260
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    • 1994
  • Four types of soybean paste(Doenjang), using traditional meju, koji, natto meju and mixture of koji and natto meju, were manufactured and fermented for 90 days. Analyzed volatile flavor components by GC-MS were confirmed to be thirty-six components including 5 alcohols, 5 aldehydes. 8 ketones, 3 acids, 9 esters and 6 miscellaneous ones. Traditional soybean paste tested had 29 components, koji and koji-natto soybean paste $26{\sim}24$ and natto soybean paste had 20 ones. Alcohol was found to be the most abundant volatile flavor components in all samples group. Traditional soybean paste had higher ratio of carbonyl to ester than any other types of soybean paste while koji-natto soybean paste had the lowest ratio of their components. The newly identified five volatile flavor components were 3-ethoxy-l-propene, dihydro-2-methyl-3-furanone. 1-hydroxy-2-propanone, 1-(2-furanyl)ethanone and 2-acethyl ethylhexanoate.

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A Comparative Study on Species Richness and Land Suitability Assessment - Focused on city in Boryeong - (종풍부도와 세분화된 관리지역 비교 연구 - 보령시를 대상으로 -)

  • Shin, Manseok;Jang, Raeik;Seo, Changwan;Lee, Myungwoo
    • Journal of Environmental Impact Assessment
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    • v.24 no.1
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    • pp.35-50
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    • 2015
  • The purposes of this study are to apply species distribution modeling in urban management planning for habitat conservation in non-urban area and to provide a detailed classification method for management zone. To achieve these objectives, Species Distribution Model was used to generate species richness and then to compare with the results from land suitability assessment. 59 species distribution models were developed by Maxent. This study used 15 model variables (5 topographical variables, 4 vegetation variables, and 6 distance variables) for Maxent models. Then species richness was created by sum of predicted species distributions. Land suitability assessment was conducted with criteria from type I of "Guidelines for land suitability assessment". After acquiring evaluation values from species richness and land suitability assessment, the results from these two models were compared according to the five grades of classification. The areas with the identical grade in Species richness and land suitability assessment are categorized and then compared each other. The comparison results are Grade1 10.92%, Grade2 37.10%, Grade3 34.56%, Grade4 20.89% and Grade5 1.73%. Grade1 and Grade5 showed the lowest agreement rate. Namely, development or conservation grade showed high disagreement between two assessment system. Therefore, the areas located between urban, agriculture, forest, and reserve have a tendency to change easily by development plans. Even though management areas are not the core area of reserve, it is important to provide a venue for species habitat and eco-corridor to protect and improve biodiversity in terms of landscape ecology. Consequently, adoption of species richness in three levels of management area classification such as conservation, production, planning should be considered in urban management plan.

The Flora and Vegetation of the Dongjin River (동진강의 식물상과 식생)

  • Lee, Kyeong-Bo;Kim, Chang-Hwan;Lee, Deog-Bae;Kim, Jong-Gu;Park, Chan-Won
    • Korean Journal of Environmental Agriculture
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    • v.23 no.1
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    • pp.34-40
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    • 2004
  • This study was conducted to get some vegetation information and to find out a way to conseue the ecosystem in the Dongjin River. The riparian vegetation was investigated by Zurich-Montpellier school's method from June 2001 to March 2002. The number of riparian plants were 73 families, 188 genera, 238 species, 33 varieties or 272 Taxa in Dongjin River. The characteristics of life farm spectra were 97 therophytes (35.7%), 78 hydrophytes (28.7%), 41 hemicryptophytes (15.1%) 22 geophytes (8.1%), and 12 chamaephytes (4.4%). The riparian vegetation was identified 8 plant communities (Potamogeton brechtoldii, Hydrilla verticillata, Ceratophyllum demersum, Potamogeton malaianus, Phragmites japonica, Persicaria thunbergii, Cardamine scutata, Persicaria hydropiper) in upstream, 4 plant communities (Zizania latifoliar, Phragmites communis, Persicaria thunbergii, Humulus japonicus) in midstream and 8 plant communities (Hydrocharis dubia, Ceratophyllum demersum, Trapa japonica, Zizania latifolia, Paspalum distichum, Phragmites communis, Pericaria thunbergii, Amphicarpaea edgeworthii) in downstream of the Dongjin River.

Biodiversity of Invertebrate on Organic and Conventional Pear Orchards (유기와 관행재배 배 과수원의 무척추동물의 종 다양성 연구)

  • Kim, Do-Ik;Kim, Seon-Gon;Ko, Sug-Ju;Kang, Beom-Ryong;Choi, Duck-Soo;Lim, Gyeong-Ho;Kim, Sang-Soo
    • Korean Journal of Organic Agriculture
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    • v.19 no.1
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    • pp.93-107
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    • 2011
  • This research was carried out to investigate invertebrate fauna with organic and conventional pear orchards, which used four collected methods; soil sampling for soil microorganism, pitfall, malaise, and black light trap for over ground species. Collected species were 37 species, 1,184 individuals in organic and 28 species, 501 individuals by soil sampling in conventional pear fields. Those were 38 species, 646 individuals and 29 species, 440 individuals by pitfall trap, 55 species 650 individuals and 47 species, 508 individuals by malaise trap, and 23 species, 201 individuals and 9 species, 42 individuals by black light trap. Collembola was collected 389 individuals in organic which was 5 times than in conventional in soil sampling. In pitfall trap, that was 183 individuals which was 3 times. The diversity indices of organic pear orchards were 1.956 in May, 2.638 in August and those of conventional was 1.426 in May, 2.011 in August in soil sampling. In pitfall trap, the dominant species were spiders, collembollan, and coleopteran. Among Coleoptera, indicator insects for the evaluation of agricultural environment suggested were Eusilpha jakowelewi as organic pear orchard and Anisodactykus punctatipennis and Pheropsophus jessoensis as conventional. Malaise trap was collected dominant species as Diptera and Hymenoptera of Braconidae and Ichneumonidae. The diversity indices of organic pear orchards were 2.952, 3.120, and 2.010 in pitfall, malaise and black light trap in over ground invertebrate sampling. The highest diversity was in malaise trap. The higher diversity indices, the lower dominance indices.

Insects Diversity in Urban Green Space (도시 녹지공간의 곤충다양성)

  • Park, Seong-Joon;Lee, Min-Ho;Kim, Jae-Won;Hong, Yong-Sik;Kim, Do-Sung
    • Korean Journal of Environment and Ecology
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    • v.29 no.3
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    • pp.374-390
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    • 2015
  • This study aimed to identify the insect diversity and forest in urban green space, which can determine the current status of the ecosystem and provide basic data and information required for conservation planning and sustainable use of the environment. For this study, we have surveyed insect diversity by habitat types in the botanic garden of Wonkwang University, Iksan, from September, 2010 to September, 2011. During the research period, a total of 209 species, 78 families and 10 orders were observed, including 10 exportable species, 1 species of Korean Red List, 2 climate-sensitive indicator species and 70 designated species. Among these taxonomic groups, Coleoptera (36.36 %) showed the highest diversity with 76 species, followed by Hemiptera (25.36 %) with 46 species, Diptera (11.48 %) with 24 species and Hymenoptera (7.66 %) with 16 species. As for the diversity by survey time, the largest number of species were observed in September 2010 (52 families, 105 species), followed by May 2011 (37 families, 87 species), July 2011 (50 families, 86 species), June 2011 (40 families, 80 species) and August 2011 (43 families, 73 species). Relatively low diversity was observed in September 2011 (38 families, 60 species), October 2010 (36 families, 52 species) and April 2011 (19 families, 29 species). As for the diversity by survey point, the highest diversity was observed in S4 (75 families, 186 species, 88.99 %), followed by S1 (41 families, 70 species, 33.49 %), S2 (41 families, 63 species, 30.14 %), and S3 (36 families, 59 species, 28.22 %). According to the community analysis, the survey area S4 (H'=3.344, RI=9.257) showed the highest numbers in diversity index (H') and richness index (RI) of insects and S1 (0.985) showed the highest species evenness index (EI). On the other hand, S3 showed the lowest numbers (H'=2.428, RI=4.307, EI=0.832) in every index. The insect fauna is closely associated with the plants and vegetation structure in the green space. Therefore, it is necessary to manage and maintain the urban green space to make it similar to the natural environment.

동굴의 환경오염 측정

  • 박면용
    • Journal of the Speleological Society of Korea
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    • v.4 no.4
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    • pp.8-12
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    • 1979
  • 이제 관광개발된 동굴과 미개발동굴 중 그 대표적인 몇 개동굴의 생물서식에 대한 변화에 대하여 조사기록에 의하여 분석하면 다음과 같다. 즉, 영월의 고저굴은 1975년 임문정 그리고 남궁 준 등의 조사기록에 나타나 있듯이 Gastropoda 2종, Cructacea 5종, Myriopoda 4종, Insecta 17종, 그리고 Mammalia 3종과 Arachnoida 10종등 총 41종을 발표하고있는데 관광개발된 후 3년이 지나 1978년 10월 현재에는 총 28종이 발견되었을 뿐인데 특히 게새우인 Crustacea가 1종, 곤충인 Insecta가 7종밖에 포착되지 않고 있어 많은 동굴생의 오손감소를 나타내고 있다.(중략)

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Community Structure of Aquatic Insects in Miryang-Dam Water System (밀양댐 수계의 수서곤충 군집에 대하여)

  • Park, Yeon-Kyu;Park, Hyean-Cheal
    • Journal of Wetlands Research
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    • v.2 no.2
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    • pp.133-146
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    • 2000
  • An ecological survey was performed in Miryang dam water system during the period of June 5~6, 2000. The fauna collected from 7 sites consisted of total 67 species, 49 genus, 25 families, in 7 orders of aquatic insects. These included 29 species of Ephemeroptera, 22 species of Trichoptera, 7 species of plecoptera, 6 species of Diptera, 1 species of Megaloptera, Odonata and Coleoptera repectively. The relative abundance of Ephemeroptera, Trichoptera, Plecoptera, Diptera, and Coleoptera was 71 %, 11.2%, 5.1%. 11.9% and 0.6% respectively. The primary dominant species of tatal level was Epeorus aesculus, and second dominant species was Epeorus latifolium. The primary dominant species were Heptagenia kihada at site 1, Ecdyonurus dracon at site 2,3,4 and Epeorus aesculus at site 5, Epeorus latifolium at site 6,7. Dominance indices were ranged from 0.30 to 0.55, and species diversity indices from 3.11 to 4.25(mean=3.71). Saprobic system based on species diversity indicated that whole sites were oligosaprobic.

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