• 한국환경복원기술학회지
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• 제18권1호
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• pp.25-35
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• 2015

Pennisetum aloperculoides is a key revegetation species mixed with other plants species and used for revegetating cut-slopes. The purpose of this research is to identify the effects of mixed seeding of revegetation plants on cut-slope revegetation with respect to the quantity of Pennisetum aloperculoides seeds. The coverage ratio and appearance frequency of Pennisetum aloperculoides, and other revegetation species were measured to assess the cut-slope revegetation. We divided Pennisetum treatments into four groups with different Pennisetum seed quantities of $0g/m^2$, $5g/m^2$, $10g/m^2$, and $15g/m^2$. For each treatment group, we mixed identical quantities of seeds from herbaceous flowers (bird's-boot trefoil, aster, chrysanthemums, golden coreopsis and china pink), cool-season turfgrasses, and woody plants (korean lespedeza, indigo and silk tree). The increase in the quantity of the Pennisetum seeds resulted in the higher coverage ratio for Pennisetum, but in the lower coverage ratio for herbaceous flowers, cool-season turfgrasses, and woody plants. We observed a short-term succession process in which the dominant species shifted in the following order: the initial species Pennisetum, herbaceous flowers, and then lastly woody plants. In case of the appearance frequency, we also observed the higher appearance frequency for Pennisetum and the lower appearance frequency for the other plants due to the increase in the quantity of Pennisetum seeds. Pennisetum, bird's-foot trefoil and china pink showed the tendency to decrease the appearance frequency from one month after seeding while cool-season turfgrasses became extinct due to summer drought. In the woody plants, the appearance frequencies of korean lespedeza and indigo were high due to the decrease in quantity of Pennisetum seeds. The silk trees were damaged from winter frost and none emerged at all in 2013 (the following year after the seeding). Korean lespedeza and indigo appeared to have the short-term rapid dominance over other treated revegetation plants.

• 한국습지학회지
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• 제11권2호
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• pp.17-28
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• 2009

광주광역시 도심 영산강 수계의 관속식물은 91과 265속 386종 49변종 및 2품종으로 총 437분류군이 확인되었다. 수생식물 중 정수식물은 16분류군, 부엽식물은 10분류군, 침수식물은 10분류군, 부유식물은 3분류군 그리고 습생식물은 14분류군으로 총 53분류군이었다. 희귀 및 멸종위기종은 자라풀, 가시연꽃, 낙지다리, 왕벚나무, 좀어리연꽃 등 5분류군이었다. 특정식물종 I급종은 10분류군, II급종 2분류군, III급종 2분류군, IV급종 3분류군 그리고 V급종 5분류군이 확인되었다. 귀화식물은 15과 44속 59종 3변종으로 총 62분류군이 확인되었고 귀화율은 14.19%였다. 환경부 생태계 교란종은 돼지풀, 물참새피 및 도깨비가지 등이었다.

• 생약학회지
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• 제38권1호
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• pp.1-9
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• 2007

This study was conducted to investigate the native Phytolacca insularis in Ulleung Island for their distribution and ecological characteristics. P. insularis, called as "Sum-Ja-Ri-Gong", is very rare plant which is only restricted in Ulleung Island. It is a plant out of 217 endangered plant species designated by the Korea Forest Service (1996). The native sites were discovered several plants in the small communities at the area from 32m to 116m above the sea level in the seashore of Ulleung Island. The average vegetation height of herb layer in the native sites was 0.77m and average coverage percentage of vegetation layer was 75.56%. Average 11.89 species were emerged on a plot. P. insularis has a tendency to emerged with Galium spurium var. echinospermon and Artemisia lavandulaefolia community.

• 한국응용곤충학회지
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• 제48권1호
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• pp.21-27
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• 2009

2001년 경기 김포 매립지 주변의 논에서 다량의 반점미를 유발시켰던 흑다리긴노린재[Paromius exiguus (Distant)]의 연중 발생소장과 주요 기주에서 연령분포를 분석하였다. 월동성충은 여러 지역의 다양한 화본과 잡초 기부에서 발견되었다. 흑다리긴노린재 성충은 월동 후 5월 중순경에 띠[Imperata cylindrica (L.)]로 이동하여 1세대를 경과하였다. 6월 하순경에는 산조풀[Calamagrostis epigeios (L.)]로 이동하여 2세대 발육을 완료하였으며, 8월 초순부터 벼(Oryza sativa L.)와 다른 화본과 잡초로 이동, 3세대 발육한 후 성충으로 월동하였다. 흑다리긴노린재 약충은 5령을 경과하였으며 각 영기는 두폭과 앞가슴전엽폭으로 구분하였다. 흑다리긴노린재의 연령분포는 띠 및 벼에서 시간의 흐름에 따라 주축 영기가 순차적으로 이동하는 비교적 단순한 형태를 보였으나 산조풀에서는 띠에서 발육이 완성되지 못한 약충들과 성충들이 지속적으로 이동하여 복잡한 연령구조를 이루었다. 모든 기주에서 약충의 밀도가 가장 높았던 시기는 3령과 4령의 구성 비율이 가장 높은 시기였으며 이러한 연령 구성 변화는 영기에 따른 약제 감수성 등과 관련하여 적절한 방제시기를 결정하는데 중요한 의사 결정 수단으로 사용될 수 있을 것으로 여겨진다.

• The Korean Journal of Ecology
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• 제18권4호
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• pp.463-470
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• 1995

Anoplocnemis dallasi Kiritchencho is a sap-sucker which feeds on tips of amorpha fruticosa Linne in Korea. A. Dallasi had one generation a year and overwintered as the young adult stage. Most overwintered survivors emerged in early-mid May to late May. Known host plants were reviewed, and new host records were added. Females mainly laid eggs in linear single chain masses on leaves of Miscanthus sinensis var. purpurascens. Nymphs (except the non-feeding first instars) fed on young shoots. First instar nymphs clustered on leaves or shoots where they hatched, and, if disturbed, reformed aggregations soon. The second to the fifth instar nymphs migrate to the upper part of the shoot and congreagate on a partly expanded leaf. New adults firstly appeared in late August, remained on A.fruticosa, host plant, and fed on until mid October. The duration and survivorship curve, in laboratory rearing, of the egg and each nymphal stadium was determined.

• Natural Product Sciences
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• 제26권1호
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• pp.10-27
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• 2020

Endophytes are defined as microorganisms that spend part of lifetime interior of plant tissues without causing negative effects. They have been used for agricultural purpose, biofuel production, bioremediation, medication, etc. In particular, endophytes have been emerged as a good source for bioactive secondary metabolites. A large number of secondary metabolites are currently being reported. In this report, we focus on the secondary metabolites that were originated from endophytic fungi inhabiting medicinal plants. They were classified into several groups such as nitrogenous compounds, steroids, sulfide-containing metabolites, terpenoids, polyketides, and miscellaneous for discussion of chemical structures and biological activities.

• 한국환경복원기술학회지
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• 제15권6호
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• pp.1-16
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• 2012

The research has analysed the targeted land situation, the composition of species, legally controlled plants, vegetation distribution, dominance, species diversity, and the similarity to evaluate the plant characterization of the eco forest in Jangsan, Busan. The results of the research is as following. The number of the plants that belongs to the area is 63 families, 126 genuses, and 163 species. Among them the fern plants : 4 families, 5 genuses, 5 species, and the egg species : 5 families, 8 species, 10 species, and angiospermae : 54 families, 113 genuses, 148 species have been checked. Monocotyledoneae of angiospermae : 7 families, 20 genuses, 22 species (13.5%) and dicotyledoneae : 47 families, 93 genuses, 126 species (77.3%) have been totally checked. The endangered wildlife species by the standard of the Ministry of Environment and the rare plants by the standard of IUCN evaluation realesed by the Bureau of Forest and National Plant Institution has never been checked but one species of Weigela subsessilis has been checked as an approving plant in being delivered abroad, the 8 imported plant by the standard of National Plant Institution checked, some disturbing ecosystem plants released by the Ministry of Environment (2009) not emerged. The succession into the oak trees is occurring to the biodiversity of the researched area, the number of species and their species diversity.

• 한국잡초학회지
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• 제18권1호
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• pp.42-47
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• 1998

크기가 다른 4종류의 종자를 생산하는 C. benghalensis의 생장 및 종자 생산 양상을 조사한 결과는 다음과 같다. 1. 4종류의 종자에서 자란 식물의 생장 및 종자생산 양상은 서로 달랐다. 파종후 생장은 지하부 굵은종자에서 유래된 식물이 다른 종자에서 자란 것보다 초기 2-4주 사이에 생장이 빨랐으나 지상부 작은 종자에서 유래된 것은 2-6주 사이에 빨랐다. 2. 종자 생산량은 지상부 작은 종자가 75-77%로 대부분을 차지하였고 그 다음이 지상부 큰 종자(21-23%)였으며 지하부 종자는 2-4%로 작았다. 이상의 결과에서 C. benghalensis에서 생산하는 4종류의 종자중에서 지하부 굵은 종자는 지상부 작은종자보다 초기에 경합력이 크고 C. benghalensis는 불량한 환경에도 잘 적응할 수 있을 것으로 사료된다.

• 한국응용곤충학회지
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• 제36권1호
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• pp.73-76
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• 1997

본 연구는 최근 1987부터 1989년까지 충북 충주일대의 참나무림에 극심한 피해를 일으켰던 도토리나방의 생활사를 구명하기 위해 수행되었다. 조사결과 도토리나방은 년 1세대 발생하였고 기주식물로는 상수리나무, 밤나무, 졸참나무, 갈참나무 등이 재 확인되었으며 떡갈나무와 굴참나무가 새로이 추가조사되었다. 본 종은 난으로 월동하여 이듬해 4월 말경부터 부화하여 약 3개월 동안 참나무류를 식해하였다. 8월 중순에 노숙유충은 땅으로 내려와 수풀이나 지피물사이에 고치를 틀고 용화하였다. 성충은 9월 말부터 10월 말에 걸쳐 우화하며 대부분이 10월 중순경에 우화하였다. 산란은 대개 기주식물의 지상과 131 cm정도 높이의 수피틈이나 거친부분에 난괴상태로 산란하며 난괴당 평균 난수는 121개 정도 였다.

• The Korean Journal of Ecology
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• 제16권3호
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• pp.329-339
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• 1993

Effects of relative light intensity and N, P fertilization on the growth and ramet dynamics of the rhizomatous plants, Arundinella hirta, Miscanthus sinensi and Spdiopogon sibiricus were studied in Chuncheon, Kangweon-Do. Ramets emerged in one pulse a year, withered in one pulse at the end of the growing season in M. sinensis and S. sibircus stands, while the birth and death pulse in A. hirta stands were two times. Total births of ramet were 9 times and 3.6 times greater in the unshaded fertilized stands of A. hirta and M. sinensis than in the shaded, However, those of S.sibiricus were 2.1 times greater in the shaded stands. Flowering rates of A. hirta, M.sinensis and S.sibiricus I the unshaded fertilized stands were 1.8, 2.7 and 1.04 times greater than in the shaded unfertilized stands, respectively. Height of ramets of A. hirta and M.sinensis were the hightest in the unshaded fertilized stands. However, that of s.sibiricus was the highest in the shaded fertilized stand. Aboveground production of A.hirta in the fertilized stand was 2.4 times greater in the unshaded stand than in the shaded one. Results of inflorescence frequency, shoot height and the ratio of aboveground to belowground were smiliar to the total births. The added fertilizer markedly increased the ramet density and the shoot productivity of three rhizomatous plants, especially of A. hirta.