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윤영성,김철원,최성제,Yun, Y.S.,Kim, C.W.,Choi, S.J. 국립한국농수산대학교 교육개발센터 2020 현장농업연구지 = Journal of practical agricultural resear Vol.22 No.2
본 연구는 전남 고흥 명천·계도 양식어장에서 2003년 2월부터 7월까지 완도와 백령도산 다시마 종묘를 이식, 시험양식을 실시하였다. 다섯 가지 환경 조건(수온, 염분, 총질소, 총인, 부유물질)과 두 가지 형질(엽장, 엽중량)을 매월 측정하였다. 이 데이터를 이용하여 성장 패턴, 형질간의 상관관계 및 PCA를 분석하는데 이용하였다. Box plot은 성장 패턴을 확인하기 위해 사용하였고, 형질들 간의 상호관계를 파악하기 위해 산점도, 회귀 계수 및 상관 계수를 이용하였다. 주성분 분석 결과 명천·계도 양식어장의 총 분산의 91.4%, 90.5% 이상을 제2주성분으로 설명할 수 있었다. 주성분분석(PCA)으로 두 어장에서 엽장과 엽중량의 성장에 가장 크게 영향을 주는 환경변수는 수온과 부유물질로 나타났다. 두 품종 모두 명천 어장보다 계도 어장에서 성장이 빨랐고, '백령도' 품종이 '완도' 품종보다 성장이나 중량에서 더 우수하였다. Growth tests on the Wando and Baengnyeongdo cultivars of Saccharina japonica were performed at the Myeongcheon and Gyedo aquafarms, Goheung in Jeollanamdo, from February to July in 2003. Five environmental conditions and 2 traits were measured monthly. The data were used to analyze the growth patterns, relationships between traits and principal component. Box plots were used to display the growth patterns. Scatter plots and regression and correlation coefficients were used to determine the strength of relationships between the traits. A principal component analysis revealed that the first principal component explained more than 91.4% and 90.5% of the total sample variance in the Myeongcheon and Gyedo aquafarms. From the viewpoint of the economic traits (blade length, blade weight), the growth of populations from the Gyedo aquafarm was stronger than that of those from the Myeongcheon aquafarm, and the growth of the Baengnyeongdo cultivar was superior to that of the Wando one.
2001년 11월 오염시기와 2002년 봄 황사시기 제주도 고산에서의 잔류성 유기오염물질 농도 변화
김영성,김진영,김연제,문길주,문광주,한진석,김상우,윤순창,권성안 한국대기환경학회 2003 한국대기환경학회지 Vol.19 No.5
Atmospheric concentrations of persistent organic pollutants (POPs) were measured at Gosan, Jeju in November 2001 and spring 2002, each time for two weeks. Primary target pollutants were organochlorine pesticides, coplanar polychorinated biphenyls(co-PCBs), and dioxin/furans listed in the Stockholm Convention adopted in May 2001. Polycyclic aromatic hydrocarbons (PAHs) were also measured in order to understand the overall characteristics of the POPs distribution as well as PM_(2.5), a potent carrier of POPs. In the latter part of the measurement period of November 2001, almost every pollutant of combustion origin including dioxin/furans went high probably due to influence of emissions in the nearby area. The characteristics of atmospheric environment at Gosan in this period were rather close to urban areas far from those of a background area. A severe dust storm swept for three days at the end of the measurement period of spring 2002. However, changes in pollutant concentrations were relatively small except PM_(10-). Nevertheless, increases in particulate PAHs and OCDD(octachlorinated dibenzo-p-dioxins), mostly present in fine particles, were observed. Trends in organochlorine pesticide variations were mixed although possible volatilization of DDT residues from soil was inferred from the measurements of spring 2002.
1999년 4월부터 2000년 6월까지 황해 덕적도에서 관찰된 대기오염물질 변화 특성
김영성,이승복,김진영,배귀남,문길주,원재광,윤순창 한국대기환경학회 2003 한국대기환경학회지 Vol.19 No.4
Sulfur dioxide (SO₂), ozone, total suspended particulates (TSP) and PM_(2.5) were measured at Deokjeok Island in !he Yellow Sea during April 1999 to June 2000. Although the emission amount of air pollutants is quite low in this small island of 36 km² with 1.4 thousand inhabitants, there are pollutant m e s such as an oil-firing power plant and a wharf for ferryboal. The island is also influenced from the emissions from the greater Seoul area in the east and from China in the west. In order to characterize the pollutant variations due to interactions between transport and local emissions, the correlation between variations of SO₂and ozone was investigated. Mass and ion concentrations of TSP and PM_(2.5) were examined on selected episode days of positive and negative correlations between the two gaseous species in spring and winter. The effects of transport were pronounced on the days of positive correlation in spring with higher concentrations of ozone and PM_(2.5). TSP concentrations were also high on these days because of high wi d speeds. On the days of negative correlation in spring, frequent fag associated with low wind speeds facilitated SO₂oxidation and increased sulfate accompanied with decrease in nitrate in PM_(2.5) and chloride in TSP. This latter phenomena was noticeable since it showed that chemical composition of fine panicles could be significantly altered nut only during the transport but also by local environment.
동아시아 지역에 분포하는 블랙카본을 포함한 에어로솔의 구름 생성 기여도
이시혜,김영성,김상우,윤순창 한국기상학회 2009 한국기상학회 학술대회 논문집 Vol.2009 No.10
본 연구에서는 동아시아 지역을 비행하면서 측정한 항공자료를 이용하여 블랙카본을 포함한 적산모드에 있는 에어로솔이 구름 형성에 미치는 영향에 대해 살펴보았다. 구름을 형성할 수 있는 입자들의 수농도는 청정한 공기 보다 산불의 영향이 있거나 오염된 대륙지역을 통과한 경우에 높게 나타났다. 또한 CN<SUB>0.1-1.0</SUB>과 블랙카본 농도 변화에 따른 CCN<SUB>0.4%</SUB> 분포를 살펴봤을 때 CN<SUB>0.1-1.0</SUB> 중 블랙카본이 높은 분율을 차지할 때 구름 응결핵이 높게 나타나는 것을 알 수 있었다.