금강수계 공주보와 백제보의 식물상 변화 분석

김의주,노재영 한국환경과학회 2023 한국환경과학회지 Vol.32 No.11

A vascular flora survey was conducted in 2020 to identify flora and analyze changes in the numbers of vascular flora species over the past 10 years at Gongju-weir (GW) and Baekje-weir (BW) in the Geumgang River, Republic of Korea. A total of 241 taxa were found in GW and 279 taxa in BW, and 208 taxa (88% of total taxa) were common species. The distribution of invasive species in GW and BW were seven and eight taxa, respectively. Rare plants were not identified in any of the weirs. The Poaceae family dominated in terms of number of species, followed by Asteraceae, Legumes, Cyperaceae, and Polygonaceae. Additionally, Therophytes accounted for a high proportion of Raunkiaer life forms. The numbers of vascular plant species, total taxa, naturalized plants, and invasive species have been increasing over the last 10 years. However, long-term alterations in invasive species before and after the opening of the weirs increased much more significantly in the partially opened BW than in the fully opened GW. These results indicate that the degree of barrier opening does not affect the invasion and establishment of non-native species.

준위협식물인 층층둥굴레 서식지와 개체군 특성 및 기후변화조건에서 광 구배에 따른 유식물의 생장반응 연구

김의주,이수인,이응필,정영호,유영한 한국환경생태학회 2018 한국환경생태학회 학술대회지 Vol.2018 No.2

국내에서 서식처 파괴로 인해 개체 수가 감소되어 층층둥굴레는 준위협종(Near Threatened)으로 지정되었다. 본 연구는 경기도 파주시 갈곡천 하천변에 위치한 층층둥굴레 서식지를 포함한 주변 일대의 토양과 광 특성, 층층둥굴레의 개체군 특성 및 분포 현황 그리고 생활사를 밝혀보고자 한다. 또한 기후변화조건에서 광 구배에 따른 1년생 층층둥굴레 유식물의 생장반응을 알아보기 위해 온실에서 재배 실험을 하였다. 연구 결과, 층층둥굴레의 서식지의 제외지는 밭과 도로이며 제내지는 낚시 등으로 인해 인위적인 간섭이 잦은 곳이었다. 서식지의 표고는 6m, 하천까지 거리는 약 8m로서 우기 때 하천의 범람의 영향을 받았고 토양의 pH 6.8, 깊이별 토양전도도는 10cm가 0.1(±0.05) ds/m, 20cm가 0.2(±0.05) ds/m이고 수분함량은 10.4%, 유기물 함량은 6.3%으로 나타났다. 층층둥굴레군락지내에서 목본식물이 출현하지 않았지만 키가 2m 이상인 침입외래식물 단풍잎돼지풀이 층층둥굴레의 상관을 덮는 것으로 확인되었다. 층층둥굴레의 상관의 광량은 516.1umol, 단풍잎돼지풀이 혼생하는 곳에서 층층둥굴레 상관의 광량은 90.0umol이었다.. 층층둥굴레군락지내에 1m2의 영구 방형구 30개를 설치하여 개체군의 특징을 살펴본 결과, 층층둥굴레의 개체수는 2017년에 약 1,212개체이고 2018년은 약 1,169개체로 약 -3.5% 감소하는 경향이 나타났다. 층층둥굴레의 꽃과 열매는 평균 6층부터 20층까지 형성하고 열매를 맺었고. 한 개체의 평균 꽃수는 2017년에 17.2(±9.5)개, 2018년에 27.0(±16.4)개로 올해에 꽃수가 더 많았다. 하지만 한 개체의 평균 열매수는 2017년에 17.3(±14.0)개, 2018년에 9.2(±8.7)개로 올해에 열매수가 적었다. 영구방형구내에서 층층둥굴레는 가는잎쐐기풀, 단풍잎돼지풀, 애기똥풀 등과 분포하며 층층둥굴레가 가장 높은 피도(41.4%)와 중요치(42.1)를 가졌다. 하지만 조사지역(1521.2m2)에서 층층둥굴레군락의 면적은 작년(30.52m2)에 비하여 올해는 26.1m2로서 감소하는 경향을 보였고 단풍잎돼지풀이 가장 큰 면적(724.2m2)으로 분포하는 것으로 나타났다. 층층둥굴레의 생활사는 4월 초에 지상부 출현과 개엽이 동시에 이루어졌고, 5월 초에 꽃봉오리가 생성하고 말에 개화가 시작되었다. 6월 중부터 열매가 형성하면서 층층둥굴레 아래층부터 잎 갈변이 시작되었고 7월 말부터 열매가 성숙되면서 9월 말에 낙엽과 동시에 생활사가 끝남을 확인하였다. 또한 온실에서 기후변화처리(CO2상승구, CO2상승구+온도상승구, 온실) 조건에서 광 구배(차광막1겹, 차광막 없음)를 통한 유식물의 생장반응 알아본 결과, 지상부 길이는 야외에서 가장 길었고, 차광막이 있는 곳보다 차광막이 없는 곳에서 길었다. 잎 수는 야외에서 가장 적었고 광의 영향은 받지 않았다. 하지만 생존율은 CO2상승구+온도상승구와 차광막이 있는 곳에서 가장 높았다. 연구 결과를 통해, 본 연구지역의 층층둥굴레의 개체군은 인위적인 간섭에 의해 개체 수와 면적이 줄어들고 있는 것으로 평가되며 또한 기후변화가 진행되면 층층둥굴레의 생존율이 높았다. 또한 지속적인 모니터링을 통해 국내의 층층둥굴레 개체군 유지를 위해서는 효과적인 개체 보전 방안을 마련해야된다고 판단된다.

나의 연수일기

김의주 한국외국어대학교 학생통역협회 1997 외대통역협회지 Vol.14 No.1

침입종 단풍잎돼지풀이 멸종위기식물 층층둥굴레에 미치는 영향

김의주,김미희,이상훈,유영한 한국환경생태학회 2017 한국환경생태학회 학술대회지 Vol.2017 No.2

The aim of this research is to study the impact of invasive species Ambrosia trifida on the vitality of Polygonatum stenophyllum which is endangered species. We removed the cover degree of the invasive species at different levels(C, T1, T2) in the natural habitat where both invasive plant and endangered species and observed ecological responses of P. stenophyllum for two years. C(control) which removed none of A. trifida, T1(treatment 1) removed 40~60% coverage of A. trifida and T2(treatment 2) removed all A. trifida. Plant species number, shoot length, aboveground biomass weight, shoot weight, leaf weight, fruit weight, fruit number, seed weight, fruit number, seed number per fruit were higher in the treatments of removed invasive plant cover(T1, T2) than control(C) that didn't remove it both the first year and the second year(p<0.05). However, death rate and seed weight between the control(C) and treatment(T1, T2) were almost same in the first year but showed difference in second year. This result reveals that the A. trifida has significant impact on the performance reduction of Polygonatum stenophyllum. In conclusion, removal of more than 40% of invasive plant cover degree is required to conserve the endangered species.

Effect of experimental climate change and soil moisture content ongermination and early growth response of Quercus dentata seedlings

김의주,정영호,박재훈,이응필,나채선,박충열,김준혁,김세희,박지원,이정민,김윤서,조경미,김혜란,정헌모,유영한 한국산림과학회 2022 Forest Science And Technology Vol.18 No.4

This study was conducted to investigate the effect of changes in soil moisture content underclimate change conditions on the growth response ofQuercusdentata, a representative spe-cies of the genusQuercuson the Korean peninsula. The results showed thatQ.dentatager-mination increased by 9.4 days under climate change conditions (RCP 4.5 scenario), whereasthe below-ground biomass and plant biomass increased by 1.3 and 1.2 times, respectively.However, the soil moisture treatment condition solely affected the leaf area, below-groundbiomass, and plant biomass but not the germination percentage, germination speed, above-ground length, and above-ground biomass. The variance across the measured growth varia-bles was considerably higher in the control group than in the climate change treatmentgroup, whereas the variance was lower for lower soil moisture content. The findings sug-gested that under climate change conditions,Q.dentatagerminated rapidly and exhibitedbroader leaf area and increased development below ground, which may be advantageousfor the early establishment of seedlings. However, the plants may face difficulties in condi-tions with low soil moisture content. In conclusion, with continuous climate changes,Q.den-tataseedlings are predicted to efficiently adapt to the altered soil moisture content toexhibit even more reliable growth than with the current condition. However, the growth ofQ.dentataseedlings would be more difficult with severely low soil moisture content thanwith abundant soil moisture content, which is predicted to be detrimental to populationmaintenance in the long term.

증례 중심의 췌담도 질환 초음파 진단법

김의주 대한내과학회 2019 대한내과학회 추계학술대회 Vol.2019 No.2

대구․경북 개신교 근대교회의 건축적 특성에 관한 연구

김의주,장석하 대한건축학회지회연합회 2007 대한건축학회지회연합회 학술발표대회논문집 Vol.2007 No.1

The protestant modern church architecture was researched centering around Gwangju and Gangwon-do in Korea, recently. For comprehensive architecture studies, we also require researching of the protestant modern church architecture of Daegu and Gyeongsangbuk-do. So, this study showed status of the protestant modern church architecture and their architectural characteristics in Daegu and Gyeongsangbuk-do. It is fully necessary to research modern architectures before it is vanished. These results can be useful data for studying of the Korean protestant modern church architecture.

거대 부신 종양으로 오인된 부신 방선균증 1예

김의주,이현승,여인구,박상희,김경민,박윤수,이시훈,김연선,박이병 대한내분비학회 2010 Endocrinology and metabolism Vol.25 No.2

The incidence of adrenal incidentalomas has increased because imaging studies are now being more frequently performed, including abdominal sonography, CT and MRI. Although there is only a consensus on the treatment of adrenal incidentalomas from the National Institute of Health (NIH) conference 2003, it is generally accepted that surgical resection is required if there’s any possibility of malignancy or functionality of the adrenal tumor. Abdominopelvic actinomycosis is a rare chronic progressive suppurative disease that is caused by gram-positive bacteria of the genus actinomyces, which is part of the normal flora of the oral cavity and gastrointestinal tract, with low virulence. Herein, we report on a case of adrenal actinomycosis that imitated a huge adrenal tumor in a 39-year-old women, and the adrenal actinomycosis was confirmed histologically only after adrenalectomy. To the best of our knowledge,this is the first Korean case report on actinomycosis that occurred in the adrenal gland

A Case of Portopulmonary Hypertension Associated with Liver cirrhosis (초)

김의주,신미승,오경용,김명건,신권철,박예민,정욱진,안태훈,최인석,신익균 대한내과학회 2010 대한내과학회 추계학술대회 Vol.2010 No.-

Estimating age using nationwide survey data on the number of residual teeth

김의주,이원준,서인수,김형건,류혜원,이주헌,서요섭,노병윤 대한법의학회 2022 대한법의학회지 Vol.46 No.3

Given that tooth loss is a degenerative change, the number of residual teeth may be used to specify a particular age range as a marker for age estimation. This study examined changes in the number of teeth with age using a nationwide oral survey database and derived the age distribution of the Korean population according to the number of teeth. Data on the number of teeth and age were extracted from the oral examination data of the Korean National Health and Nutrition Examination Survey (KNHANES) from 2016 to 2018. Statistical analyses of a complex sample survey were performed using weighted values. The distribution range of the number of teeth by age was broad. The proportion of young people decreased progressively as the number of remaining teeth decreased. In contrast, the proportion of those from the older age group decreased slightly as the number of teeth increased. The number of teeth was subdivided into groups of four, age was categorized into 5-year intervals, and the distribution of age groups by the number of teeth was analyzed. We attempted to determine the age group threshold at approximately 95th percentile for age. In summary, we found that if there were ≤4, 5-12, and 13-20 residual teeth, the estimated age was ≥60, ≥55, and ≥50 years, respectively, with an approximately 95% probability. When many teeth are lost and it is difficult to apply conventional dental age estimation methods, our method may assist in narrowing the age range, although it is not an accurate age determination method.