낙엽 수집에 의한 낙엽활엽수림의 엽면적지수 측정

권보람 ( Bo Ram Kwon ),이명종 ( Myong Jong Yi ),허남준 ( Nam Jun Heo ),신호용 ( Ho Yong Shin ) 한국임학회 2014 산림과학 공동학술대회 논문집 Vol.2014 No.-

엽면적 지수(LAI)의 추정 방법에는 크게 직접추정법과 간접추정법이 있는데, 직접 추정법 중에서 널리 적용되는 리터트랩법에 의한 LAI측정은, 간접측정법을 평가를 위한 참고자료로서도 유효하다. 이 연구에서는 2013년 가을철 낙엽기에 서울대 태화산 학술림과 광릉수목원에서 졸참나무가 우점하는 낙엽활엽수림에서 리터트랩으로 낙엽을 수집하여 SLA 와 건중을 측정하여 LAI를 추정하였다. 동일 기간에 어안 수광 센서를 이용하여 측정한 최대 엽면적지수는 광릉시험림과 태화산 연습림에서 각각 약 4.0과 3.5로 9월초에 나타났고 이후 감소했다(박필선 미발표자료). 따라서 수관이 가장 울폐된 9월 초 이후의 낙엽생산량 (kg/ha)과 SLA(cm2/g)의 관계로서 LAI를 산정하였다. 졸참나무 낙엽의 SLA (cm2/g)는 광릉수목원과 태화산 학술림 에서 각각 101.6-217.0과 82.9-209.9로, 변이폭이 광릉시험에서 다소 컸는데 임내의 광환경이나 입지환경의 차이의 영향으로 생각된다. 광릉수목원의 LAI(m2/m2)는 DOY 240, 270, 300, 330에 각각 4.80, 4.29, 3.52, 0.00이며, 태화산 학술림은 각각4.11, 3.86, 3.09, 0.00으로 추정되어 조사지간 차이가 있었다. 향후 리터트랩을 증설하여 다양한 수종의 LAI를 추정하고 임내의 광환경을 조사하여 임분의 종조성과 LAI의 관계 등을 파악할 필요가 있다. Leaf area index (LAI) is usually estimated by direct and indirect methods. Among various methods, the littertrap method can estimated LAI directly in a non-destructive way, and also can be used to test validity of other indirect methods. In this study, LAI of deciduous stands dominated by Quercus serrata located in Seoul National University Forest at Mt. Taehwa (TH) and Gwangneung Arboretum (GA) were estimated by collecting leaf-litter collected in littertraps and measuring specific leaf area (SLA) and dry weight of them in 2013 fall. In a previous study, maximum LAI estimated by using fisheye light sensor in early September at GA and TH were 4.0 and 3.5, respectively (P.S. Park, unpublished). Thus we chose to use early September data for litter production (kg/ha) and SLA (cm2/g) to estimate LAI. The SLA (cm2/g) at GA and TH ranged 101.6-217.0 and 82.9-209.9, respectively. We propose that wide range of these values can be attributable to the variation of light and other conditions. LAI (m2/m2) on DOY 240, 270, 300, and 330 were 4.80, 4.29, 3.52, and 0.00 at GA, respectively, and 4.11, 3.86, 3.09, and 0.00 at TH, respectively. Additional researches, such as estimation of LAI of various tree species by installing larger numbers of littertraps and examination of light conditions in stands, are required to elucidate the relationship between tree species composition and LAI.

Cultural Kinetics of the Excommunicated People in the 18th Century: The Patterns of Performance-Making based on the Sutra outside the Canon

권보나(Kwon, Yeong) 한국음악도상학회 2022 뮤직인아트 Vol.1 No.-

This article explores Gulripae scences which are described in nectar ritual paintings in the 18th century. Gulripae’s performance shows patterns of Samul including three sound instruments and a dancing prop which are used in the Buddhist ceremony. Icon of the each instruments has specific parody with the serious religious purpose. The author also explains their sound instruments as factors of allegory which means dynamic, individuality, and gender role in motion.

비파의 망실과 을미사변

권보나(Kwon, Yeong) 한국음악도상학회 2023 뮤직인아트 Vol.2 No.2

이글은 한반도의 역사와 함께 존재하며 음악공동체 연구와 세계음악교류사의 주요 연구대상이기도 한 악기 비파가 정작 한반도에서 사라지게 된 사실과 19세기말 서울에서 벌어진 한 살인사건과의 관계를 밝힌다. This article writes about a murder case which had taken place in Seoul in the end of the 19th century, which led to the loss of the Asian instrument Pipa, which exists along with the history of the Korean Peninsula and is a major subject of study in musical culture, the formation of a musical community and the history of cultural exchange on world music.

건강운동참여자의 기본심리욕구와 운동결과기대가 운동지속의도에 미치는 영향

권보람(Kwon, Boram),문민권(Moon, Minkwon),권성호(Kwon, Sungho) 한국체육과학회 2022 한국체육과학회지 Vol.31 No.5

This study examines the relationship between basic psychological needs, exercise outcome expectation, and exercise adherence intention in COVID-19 environment, and verifies the mediating effect of exercise outcome expectation. For this purpose, self-administration method was applied to 267 exercise participants for more than 3 months since COVID-19, and collected data were analyzed by IBM SPSS Statistics 26.0 and AMOS 21.0 according to the purpose of this study. The result is as follows. Competence was significant between men and women. In terms of age, physical exercise outcome expectation was statistically significant. According to the type of exercise participation(online, offline, online and offline), competence and social exercise outcome expectation were significant. The mediating effect of exercise outcome expectation was verified in the relationship between the three factors (autonomy, competance, and relatedness) of basic psychological needs. Offline exercise participation had a higher level of satisfaction than online participation in terms of competence, relatedness, and social exercise outcome expectation. Nevertheless, the online exercise program partially maintained the level of participants basic psychological needs or exercise outcome expectation. If the online exercise program is properly organized to maintain basic psychological needs and exercise outcome expectation, participants can continue exercise without drop-out and be less affected by environmental change.

아트옥션과 음악고고학: 소더비와 크리스티의 편종류(類) 청동악기

권보나(Kwon, Yeong) 한국음악도상학회 2024 뮤직인아트 Vol.3 No.2

이 글은 홍콩반환 이후, 아트옥션의 개장과 함께 주요 국제아트옥션인 소더비와 크리스티에서 거래되기 시작한 중국 고대 음악문물 중 청동악기 편종(編鐘)류의 현황을 음악산업의 관점에서 2000년도 이후부터 현재에 이르기까지 파악한 글이다. The author writes a short report about bronze bell type of Bianzhong of Chinese ancient musical artifacts which has been dealing in the international major art auctions; Sotherby’s and Christie’s since the 2000s with a perspective of music business.

어머니의 양육신념과 애착이 초등학생 자녀의 자기조절을 통해 자기관리기술에 미치는 영향

권보라 ( Bo Ra Kwon ),장영은 ( Young Eun Chang ) 대한가정학회 2012 Human Ecology Research(HER) Vol.50 No.7

The main aim of the current study is to examine the effects of mothers` parental beliefs and mother-child attachment on school-aged children`s time management and life management skills through the mediation effects of children`s self-regulation. Study participants included a total of 317 fifth- and sixth-grade children at elementary schools located in Seoul and Gyeong-gi area, and their 317 mothers. Children and mothers completed questionnaires and Structural Equation Modeling was adapted as the main analysis technique. The findings were the following: First, mothers` parental beliefs that emphasize the child`s independence were significantly related to greater self-regulation ability in children, indicated by cognitive, motivational, and behavior regulation. Second, better quality of mother-child attachment perceived by children was also found to predict greater self-regulation in children. Third, children`s self-regulation was strongly related to time and life management skills. When the child is better at self control, the child showed greater management skills, both in time and everyday life. Finally, as hypnotized, the test yielded a significant mediation effect of self-regulation in the association from mothers` parental beliefs and mother-child attachment to children`s time and life management skills. The findings suggested the important role of parental beliefs about child rearing and attachment between mother and child in developing self-regulation and management skills of school-aged children.

한국 첩포 검사의 표준항원 양성률에 대한 분석 및 문헌고찰

권보람 ( Boram Kwon ),이민영 ( Min Young Lee ),변지연 ( Ji Yeon Byun ),최유원 ( You Won Choi ),최혜영 ( Hae Young Choi ) 대한피부과학회 2020 대한피부과학회지 Vol.58 No.6

Background: Korean standard series (KSS) have not changed for 20 years. Moreover, the Korea Food and Drug Administration has suspended import licensing of Cosmetic series (Chemotechnique^Ⓡ). Objective: To analyze trends in the positive rates of allergens in patch test using KSS and present a literature review on the comparison of the results those of European baseline series (EBS) and North American Contact Dermatitis Group (NACDG) screening series. Methods: Epidemiologic findings and the positive rate of KSS allergens were analyzed from patients who visited the Department of Dermatology in Ewha Womans University Mokdong Hospital between 1998 and 2018. Literature reviews were conducted on the comparison of the results with those of the 2015∼2016 NACDG, 2013∼2014 ESSCA, and standard antigens in K-camp. Results: The positive rates of KSS allergens from 126 patients in 2018 were compared with those from 184 patients during 1998 to 2007. The top 3 allergens in the two study periods were common; nickel sulfate, cobalt chloride, and potassium dichromate. Remarkably, the positive rates for balsam of Peru and paraben mix increased from 7.1% to 17.5% and from 2.7% to 7.9%, respectively. As compared with the results of NACDG standard series and EBS, KSS lacked fragrance and cosmetic series of allergens, especially fragrance mix II, methyldibromoglutaronitrile, and methylisothiazolinone, and epoxy series of allergens. Conclusion: Our results, especially the increasing trends of balsam of Peru and paraben mix, would be further confirmed in a multicenter study. Additionally, in view of the increase in fragrance and preservative allergens, KSS would need the addition of related allergens. (Korean J Dermatol 2020;58(6):371∼381)

음악고고학계의 연구동향 II : 중국 음악고고학 박물관(CMAM)을 중심으로

권보나(Kwon, Yeong) 한국음악도상학회 2024 뮤직인아트 Vol.3 No.-

어머니의 가정관리능력이 자녀의 자기관리에 미치는 영향

권보라(Kwon Bo-Ra),장영은(Chang Young-Eun) 한국생활과학회 2013 한국생활과학회지 Vol.22 No.1

광릉숲, 태화산, 가리왕산 활엽수림에서 낙엽에 의한 수종별 엽면적지수 추정

권보람 ( Boram Kwon ),전지현 ( Jihyeon Jeon ),김현석 ( Hyun Seok Kim ),이명종 ( Myong Jong Yi ) 한국농림기상학회 2016 한국농림기상학회지 Vol.18 No.1

광릉숲, 태화산 서울대 학술림, 가리왕산의 낙엽활 엽수림에서 연간 낙엽·낙지 생산량과 가을철 낙엽에 의한 수종별 엽면적지수를 산출하고, 간접적인 방법의 것과 비교하였다. 연간 낙엽·낙지 생산량은 천이 단계 증가에 따른 임분의 바이오매스 축적량이나 수종 구성 등에 따라 그 양과 비율이 다르게 나타났으며(Table 2), 특히 수종마다 낙엽의 양에 차이는 있지만 모든 임분에서 여름철 이후에 집중되는 경향을 보여(Fig. 1), 가을철의 한시적인 낙엽 수집만으로도 최대엽면적지수의 추정은 유효한 것으로 나타났다. 더욱이, 이러한 낙엽의 수집으로 낙엽의 양 뿐만 아니라 수종마다 SLA와 탈락시기를 정확하게 추정할 수 있었고 (Table 3), 간접방법으로는 불가능하기 때문에 국내에서는 시도되지 않았던 각 수종별 엽면적지수를 국내 최초로 산출 할 수 있었다(Fig. 2). 본 연구를 통하여 수종별 낙엽량과 엽면적지수는 각 수종의 흉고단면적과 유의한 상관관계를 보였으나, 간접방법에 의한 전체 엽면 적지수를 흉고단면적의 비율을 곱하여 수종별 엽면적지수로 추정하는 것은 상당한 오차가 발생할 수 있음을 알 수 있었다(Fig. 3). 또한 간접방법에 의한 엽면적지수는 잎의 양이 늘고 밀집도가 높아질수록 과소평가되는 오류가 발생하기 쉽기 때문에(Fig. 4, 5), 직접방법에 의한 엽면적지수와의 평가는 필수적임을 확인할 수 있었다. 따라서, 낙엽에 의한 직접적인 엽면적지수의 측정을 시도함으로써 다양한 수종이 공존하는 우리나라 온대 활엽수림에서 임분의 수종 구성과 밀도, 천이단계, 입지환경 등에 따른 낙엽량과 수종별 엽면적지수의 변화 양상을 정량적으로 확인 할 수 있었다. Annual litterfall production and leaf area index (LAI, m2/m2) were estimated using litter traps in Gwangneung, Mt. Taewha and Mt. Gariwang. Annual total litter fall production including branch, bark, others was the highest in Gwangneung(7497.3±326.5 kg/ha/yr), which had the highest basal area at late successional stage, and followed by Mt. Taewha(5929.1±225.8 kg/ha/yr) and Mt. Gariwang(3,210.1±220.1 kg/ha/yr). Mt. Gariwang had the lowest litterfall production due to high elevation and short growing season even with the higher stand density and basal area than Mt. Taewha. Similarly, LAI, which was calculated by multiplying the mass of leaf litter with specific leaf area, was the highest in Gwangneung(5.99±0.69) and followed by Mt. Taewha(5.20±0.24) and Mt. Gariwang(4.06±0.42) and the upper canopy species had the highest leaf area index in every sites (Gwangneung : 4.72, Mt. Taewha : 3.08, Mt. Gariwang : 2.19). However, species specific LAI estimation based on the relationship between basal area and leaf area was limited due to upper canopy species non-proportionality of basal area with LAI. In addition, the comparison between direct and indirect LAI measurement showed the importance of canopy clumping, especially at high density. Our study emphasized the necessity of direct LAI measurement using litter fall traps especially at temperate deciduous forest with diverse species.