• 제목/요약/키워드: Exotic Plant

검색결과 137건 처리시간 0.025초

Characteristic of Soil and Cambial Electrical Resistance for Investigation on Defect Cause of Planting Tree in Apartment

  • Cho, Chi-Woung;Yoo, Sun-Ah;Kim, Jeong-Ho
    • 한국환경과학회지
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    • 제21권11호
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    • pp.1307-1320
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    • 2012
  • The purpose of this paper is to provide information on planting construction for healthy plant growth. To achieve this purpose, this study analyzed the planting type, planting density, withering rate, soil characteristics, and cambium electrical resistance (CER) of withered trees in an apartment complex with a high withering rate. The major plant groups examined consisted of native broad-leaved tree species (39.3%), native narrow-leaved tree species (24.2%), and native broad-leaved - exotic narrow-leaved tree species (16.4%). The planting density of the green area, where trees were planted from 0.0 to 0.3 trees per unit area, was measured as 98.4%. Withered trees were found in 19 of the 20 planted species, and the withering rate was 41.8% (610 withered/1,461 planted). Withering rates for tree species were measured as follows: Sophora japonica and Salix babylonica (100.0%), Magmolia denudata (84.3%), Lindera obtusiloba (74.7%), cornus kousa (69.3%), acer triflorum (69.2%), diospyros kaki (66.7%), Prunus yedoensis (62.8%), Acer palmatum (52.6%), Prunus armeniaca (51.1%), Chaenomeles sinensis (43.7%), Ginkgo biloba (40.9%), Zelkova serrata (31.0%), Cornus officinalis (28.6%), Taxus cuspidata (25.6%), Pinus densiflora (21.4%), Pinus parviflora (15.2%), Pinus strobus (14.6%), and Abies holophylla (10.3%). Soil chemical analyses for 18 samples revealed that as the withering rate increased, the following occurred: (a) the ratio of silt and clay in soil increased; (b) the soil pH, organic matter rate, nitrogen, available phosphorus, and cation exchange capacity (CEC) in samples were graded as "inadequate," based on the plant grading evaluation; and (c) the NaCl and cation exchange capacity were evaluated as "somewhat satisfactory." The measurement of CER for withering rate shows electrical resistance for higher withering rate are higher, which could predict that a tree will not grow well.

참다래$\times$다래 교잡종의 액아배양 및 캘러스 배양에 의한 기내번식 (Micropropagation of the hybrids of Actinidia deliciosa$\times$A. arguta by tissue culture)

  • 문흥규;권영진;이병실
    • 식물조직배양학회지
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    • 제28권4호
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    • pp.227-230
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    • 2001
  • 내한성이 강하여 수원지역에서 재배가 가능한 참다래$\times$다래 교잡종의 기내번식은 액아배양과 캘러스 배양으로 증식이 가능한 것으로 나타났다. 액아에서 줄기유도는 St 배지에 0.2 mg/L BA, 3.0 mg/L GA$_3$처리로 4주마다 약 3배의 증식이 가능했다. 줄기의 발근은 기내발근보다 기외삽목이 매우 효과적이었으며 환경순화 후 포지에서 95% 이상 활착되었다. 한편 캘러스 유도는 엽육을 절편으로 MS및 B$_{5}$배지에 2,4-D 및 NAA 처리로 100%가능하였으며 처리 농도에 따른 차이는 없었다. 캘러스에서 줄기의 재분화는 NAA 처리로 유도된 캘러스에서만 가능하였다. 줄기의 재분화는 MS 배지에 3.0 mg/L. zeatin 처리로 평균 64% 가능했으며 정상적인 생장이 가능했다. 이상의 결과로 볼 때 새로운 키위 교잡종은 기내배양으로 대량번식이 가능할 것으로 사료된다.다.

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국가재난형 동·식물 조기경보시스템을 위한 IOT기반의 포렌식 정책 연구 (A Study on IoT based Forensic Policy for Early Warning System of Plant & Animal as A Subsystem of National Disaster Response and Management)

  • 정호진;박대우
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2014년도 춘계학술대회
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    • pp.295-298
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    • 2014
  • 2000년 이후 한국에서 기후변화(아열대성 및 잦은 이상기온) 및 농축산물 수입개방에 따른 국내 고병원성AI, 구제역, 가축질병 5회 발생으로 3조8천억원 피해와 기유입 확산되는 재선충의 10여년간 공적 방제비 2천383억원이 투입되었다. 또한 유입 가능성이 높은 흰개미 등의 외래식물해충으로 국가의 경제 사회적 피해와 영향이 증가되는 실정이다. 본 논문에서는 FTA확대에 따른 농식물로 인한 국가경제피해에 대한 대응 가능한 농업 농촌분야에 사물(IoT) 기반의 국가재난형 동 식물위성조기경보체계 운용전략에 대한 연구와 정책 수립을 연구한다. 또한 국가적 재난의 피해발생과 책임소재에 대한 정부의 피해보상 및 법 제도적인 책임 수행의 사전 증거자료 수집과 사후 보상 근거로서의 포렌식 기술이 포함된 정책이 적용되는 방법을 연구한다.

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삼보사찰의 조경식물 및 식재특성 (Landscape Plants and Planting Characteristics of Three-Treasure Temples)

  • 유주한;홍광표;이동훈
    • 한국조경학회지
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    • 제38권1호
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    • pp.119-128
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    • 2010
  • 본 연구는 삼보사찰인 해인사, 통도사, 송광사에 식재되어 있는 식물종과 식재특성을 분석함으로써 한국의 전통식재양식에 대한 기초이론을 모색하는데 그 목적이 있다. 연구결과를 요약하면 다음과 같다. 삼보사찰의 식재종은 57과 96속110종 12변종 7품종 등 총 129분류군으로 확인되었다. 불교와 관련된 식물종은 불두화, 수국, 파초이며, 이들은 식물형태, 불교의식 등과 연관성이 있는 것으로 생각된다. 성상 분석 결과, 교목 34.1%, 관목 33.3%, 만경 3.9%, 초본 28.7%로 분석되었다. 낙엽 유무에 따른 분석 결과, 낙엽활엽 56분류군, 상록활엽 27분류군, 상록침엽 14분류군으로 확인되었다. 자생종의경우, 해인사 32분류군, 통도사 27분류군, 송광사 44분류군이며, 외래종의 경우 해인사 20분류군, 통도사 28분류군, 송광사 44분류군으로 나타났다. 식재특성 분석 결과, 해인사 일주문의 경우 전나무가 열식되어 있었고, 해탈문 화계의 경우 백목련 이 단식으로 식재되어 있었으며, 적묵당 화계의 경우 개비자나무가 일정 간격으로 식재되었다. 대적광전의 경우, 중앙 계단을 중심으로 양쪽에 자목련이 대식되어 있어 균형감과 정형미를 유지하고 있었다. 통도사의 경우, 일주문에는 팽나무, 느티나무 등이 식재되어 있었으며, 영산전의 경우 오죽이 차폐식재되어 있었다. 황화각은 건물 중앙 전면부에 대칭식재되어 있었으며, 대광명전은 혼합식재형태를 하고 있었다. 송광사 일주문 주변에는 일정한 식재형태는 나타나지 않았으며, 도성당의 경우 산수유가 서쪽에 열식된 형태를 하고 있었다. 관음전의 경우 옥향과 동백나무가 대칭식재되어 있었고, 대웅보전 정면에는 수령이 오래된 수목들이 표본식재되어 있었다.

서열법(ordination)을 이용한 보성강 하천 습지의 식물군락 분포 특성 분석 (A analysis of plant communities distribution characteristics of Boseong river wetland using ordination)

  • 이일원;김기대
    • 한국습지학회지
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    • 제24권4호
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    • pp.354-366
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    • 2022
  • 하천 습지에서 생육하는 식물 군락의 분포와 생물과 비생물적 환경요인과의 관계를 분석하기 위해서 보성강내 하천 습지에서 식물 군락과 환경요인을 조사하였다. 연구장소인 보성강 하천 습지는 화평습지, 반구정습지, 석곡습지로 구성되어 있다. 2022년 6월부터 9월까지 상관식생적 관점에서 식물군락 조사를 수행하였고 출현종의 피도는 Braun-Blanquet scale을 따랐다. 식물 군락 조사를 위한 방형구내에서 식물종과 각 종의 피도를 기록하였고 생물 요인으로 방형구 울폐도, 총 출현 종수, 외래종 수를 측정하였다. 비생물 요인으로는 고도, 방위, 경사도, 토성, litter 층 깊이, 우점종 흉고직경, 지형을 기록하였다. 총 50개의 방형구에서 버드나무와 달뿌리풀 군락이 가장 많이 발견되었고 Shannon 종다양도 지수가 가장 큰 군락은 달뿌리풀-물피 군락이었다. DCCA에 의한 서열법 분석 결과, 하천제방, 제방사면, 상부고수부지권, 하부고수부지권, 고수변부, 수변부, 저수변부, 사주, 하중도, 개방수역 등 지형 요인에 의하여 가장 유의하게 군락이 분리되었다. 하천 습지에서 보전되어야 하는 희귀식물로서 자라풀과 낙지다리는 저수변부에서 발견되어 털물참새피 같은 생태계교란식물의 지형적 분포와 일치하여 저수변부의 하천 관리가 필요함이 밝혀졌다.

Recent Vegetation History and Environmental Changes in Wangdeungjae Moor of Mt. Jiri

  • Kim, Jae-Geun;Lee, Yang-Woo
    • The Korean Journal of Ecology
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    • 제28권3호
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    • pp.121-127
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    • 2005
  • To reveal vegetation history and environmental changes in Mt. Jiri, sediment cores were collected from Wangdeungjae moor of Mt. Jiri. Overall dry matter accumulation rates and sedimentation rates by $^{14}C-dating$ were 0.027 $kg{\cdot}m^{-2}{\cdot}yr^{-1}$ and 0.184 mm/yr since 1250 ($760{\pm}40$ yrs BP, 14 cm in depth). There are three pollen zones; the first zone is below 14 cm depth where Quercus dominated, the second zone is from 14 cm to 6 cm depth where Gramineae increased and Quercus and Salix dominated and the third zone is from 6 cm depth to the top where Pinus and Quercus dominated. Total pollen concentration gradually increased from bottom to the top of sediment core, which implies wet, anaerobic and cool condition during covered period by the core. Calcium and magnesium contents had increased since 14 cm depth, with peaks at 13 and 20 cm depths. This indicates that groundwater had recently become relatively more important than surface water as water source of Wangdeungjae moor Exotic plant or Chenopodiacea pollen was less than 1%. There was little variation in total N and P contents along the length of the core. These results support that Wangdeungjae moor has been little affected by anthropogenic activities. Also, nutrients and heavy metal contents indicate the baseline condition of Wangdeungjae moor.

Preference and Consumption Pattern of Horticultural Species in the Offshore Homestead Forest of Bangladesh

  • Masum, Kazi Mohammad;Mamun, Abdullah Al;Mamun-Or-Rashid, Mohammad;Abdullah-Al-Mamun, M. M.;Islam, Mohammad Nabidul
    • Journal of Forest and Environmental Science
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    • 제28권2호
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    • pp.75-83
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    • 2012
  • An explanatory survey was conducted to assess preference and consumption pattern of horticultural species, their sources, location-wise planting preferences and diversity of these species in the rural homestead forest of the offshore island of Bangladesh. Assessment was done through multistage random sampling. Based on homestead size respondents were categorized into small (<0.05 ha), medium (0.05-0.25 ha) and large (>0.25 ha) and twenty from each category were selected randomly for the study. The study revealed that most of the farmer (75.5%) preferred to plant fruit tree species for future plantation followed by timber species (62.2%). But fruit-bearing plants were being gradually replaced by some exotic timber species such as Swietenia mahagoni, Acacia auriculiformis, Tectona grandis, Eucalyptus spp., etc. Diversity and abundance of fruit species was found higher in almost all homestead. A total of 41 horticultural species were identified and seven horticultural species among them were recognized as the most preferred ones in the study area. Consumption pattern was chiefly to meet the nutritional demand and to gain a quick monetary benefit. Average annual income from horticultural species was 7,183.33 Taka (US$102).

Distribution of Phytolacca americana in a coastal sand dune

  • Min, Byeong-Mee
    • Journal of Ecology and Environment
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    • 제37권2호
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    • pp.81-90
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    • 2014
  • This study examined the main factors affecting the distribution of Phytolacca americana, an exotic plant species in Korea, in coastal sand dunes. The areas examined from June 2004 to February 2006 were in Sindusagu where was located on Sindu-ri, Wonbuk-myen, Taean-gun, Chungcheongnam-do. The vegetation, sediment properties, sizes and ages of Robinia pseudoacacia, P. americana and Pinus thnunbergii and spatial distribution of P. americana were assessed. Firstly, correlation coefficients (CC) between P. americana's root biomass and sediment properties were not significant. Secondly, of the four community types, P. americana was not in the mixed herbaceous community and its density was the highest in the P. thunbergii-R. pseudoacacia and R. pseudoacacia community The Poisson distribution analysis revealed the distribution of P. americana to be severely clumped. The root biomass of P. americana and the basal area of R. pseudoacacia were significantly correlated, but the CCs between P. thunbergii and other two species were not significant. The ages of P. americana and R. pseudoacacia in a quadrat were significantly correlated. Thirdly, P. americana's ages in a quadrat were mostly similar to each other. Therefore, the spatial distribution of P. americana was largely influenced by R. pseudoacacia but not by the sediment properties, and plants in a narrow area were concurrently germinated.

아르누보와 아르데코 양식이 현대패션에 미친 영향에 대한연구 (The Study on How Art Nouveau and Art Deco's Influenced on Modern Fashion)

  • 이순홍;제윤
    • 복식
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    • 제44권
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    • pp.235-247
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    • 1999
  • The influences of Art nouveau and Art Deco are as follow: The first, in the side of silhouette, hourglass style and bell shaped skirt influence on mordern fashion chiefly and S-curve style was mollified. Empire style, hobble style in art deco age are all showed diversely, in these styles especially boyish style give an outstanding trasts to modern fashion. The second, the color of art deco, characterized by pastel in art nouveau's color tone, original color and black and gold was reflected on the textile design and showed diversely in the color fo modern fashion. The third, in the field of textile and pattern, flower and plant which was a motive of art nouveau style, organic curve and geometrical pattern and exotic motive was seperately used with motive in the pattern and design of mordern. Textile of goldish and silver tone, metal stuff, lace embroidery, fur, artifical flower, feather etc. showed up on the many parts of clothing. Like this Art Nouveau and Art style not only had a great effect on the costume but also decorations and formative arts.

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일본의 비탈면 녹화공법 발전과정과 전망 (A Study on the Historical Changes and Prospect of Slope Revegetation Technology in Japan)

  • 고정현;요시다 히로시;김남춘
    • 한국환경복원기술학회지
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    • 제9권1호
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    • pp.112-120
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    • 2006
  • It is possible to divide the historical changes of slope revegetation in Japan into five periods as follows; 1) The early period after creation(1927-1948), 2) The spreading period of modern revegetation work with manpower(1947-1958), 3) The spreading period of rapid revegetation technique using exotic grasses with machineries(1959-1985${\dots}$), 4) The spreading period of rapid reforestation technique by fast growing species mainly using leguminous shrub species(1986-1995${\dots}$), 5) The developing period of nature restoration technique using endemic arborous species(1996-). Recently main purpose of slope revegetation has been developing from the erosion protection to the nature restoration in the current of the 5th period. It is said that the role of the Japanese Society of Revegetation Technology(JSRT) is critical to the history of slope revegetation in Japan. 'The tentative guidelines of slope nature restoration' was announced by JSRT in 2004. In the guidelines, it was proposed that the planning techniques of using suitable seeds/plants based on the preservation level at the each construction sites. Moreover, the use of soil seed bank is the new and important study theme in the field of nature restoration. Consequently, at present the importance of advanced monitoring methods for vegetation maintenance and plant sociologic survey to evaluate the plant succession is increasing. Finally, some critical concepts are necessary to develop the field of restoration in Korea as follows; 1) monitoring of constructed sites, 2) ensuring of biodiversity, 3) recognition of slow revegetation and mosaic arrangement in revegetation, 4) reuse and recycle on the construction sites, and 5) promotion of specialist.