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        논문 : 강원도 양양지역 소나무림의 지상부 바이오매스와 수관층 연료특성에 관한 연구

        김성용 ( Sung Yong Kim ),이영진 ( Young Jin Lee ),장미나 ( Mi Na Jang ),서연옥 ( Yeon Ok Seo ),구교상 ( Kyo Sang Koo ),정성철 ( Sung Cheol Jung ),김경하 ( Kyung Ha Kim ) 한국임학회 2012 한국산림과학회지 Vol.101 No.2

        본 연구의 목적은 강원도 양양지역에 분포하는 소나무림을 대상으로 지상부 바이오매스와 수관층 연료특성에 대하여 분석하고자 하였다. 연구대상지는 강원도 양양군 현남면 하월천리 일대 소나무림으로 선정하였으며, 총 13본의 표본목을 벌채하여 분석하였다. 본 연구 결과에 의하면, 양양지역 소나무림의 줄기밀도(g·cm-3)는 0.347~0.409, 지상부 바이오매스 확장계수는 1.251~1.419의 범위로 나타났다. 지상부 연료량은 총 161.6 Mg·ha-1로 나타났으며, 줄기 126.4 Mg·ha-1, 가지 29.3 Mg·ha-1, 잎 5.9 Mg·ha-1로 나타났다. 수관층 연료특성 인자에 관한 연구에서는 수관화 확산 시 연소될 수 있는 연소가능 연료(잎~1 cm이하 가지)의 비율은 45.2%로 나타났고, 연료량을 수관체적으로 나눈 연소가능 연료밀도(kg·m-3)는 평균 0.178로 나타났다. 본 연구의 결과는 소나무림의 바이오매스 및 탄소 흡수량 추정과 수관화 위험성을 연료적 관점에서 평가하는데 있어 유용한 기초자료가 될 것으로 사료된다. The objective of this study was to analyze the above-ground biomass and crown fuel characteristics of Pinus densiflora stands in Yangyang, Gangwon province. A total of thirteen representative trees were destructively sampled in Yangyang region. The results showed that the stem density (g·cm-3) was 0.347~0.409, whereas the above-ground biomass expansion factors ranged from 1.251~1.419. In terms of crown fuel biomass, the above-ground biomass was 161.6 Mg·ha-1 while the stem biomass, branch biomass and needle biomass were 126.4 Mg·ha-1, 29.3 Mg·ha-1 and 5.9 Mg·ha-1, respectively. Needles and twigs with less than 1 cm diameter accounted 45.2% of the total crown fuel load. The available crown bulk density, which was calculated by dividing the crown fuel load to the crown volume, was 0.178 kg·m-3. The results of this study on the biomass and carbon stocks estimation of the Pinus densiflora together with the crown fire hazard assessment based on crown fuel loads are very significant information for the forest managers.

      • KCI등재

        초·중·고등학교 학생, 학부모, 일반교사의 보건교육 요구

        윤순녕,김영임,최정명,조희순,김영희,박영남,오경순,이분옥,조선녀,조소영,한선희,하영미 韓國學校保健學會 2004 韓國學校保健學會誌 Vol.17 No.2

        Purpose : The purpose of this study was to identify needs of health education of the students, parents, general teachers, and health teacher of the elementary, middle, and high schools. Method : 279 schools of elementary, middle, and high school were sampled nonproportionally during the period from June 28 to July 26, 2004 . The data were collected by the questionnaire from 1,888 students, 1,876 parents, 1,695 general teachers, 279 health teachers. A frequency, % and χ2-test were used to analysis by SAS program. Result : 1. It showed that 98.1% of elementary school students, 92.3% of middle school students, 89.6% of high school students answered that they need health education. The most of students, parents, and general teachers had high interests in health education. 2. In the case of students, main causes of needs of health education was 'to prevent diseases or accidents''. But parents answered that it was 'to build up a healthier behavior'. General teachers answered that it was 'more effective systematic and continuous health education'. 3. Over 80% of students, parents, and general teachers about the question of who qualified person is to teach health education as a regular class responded that health teacher is available. Especially 93% of elementary school students answered like that. 4. The most of students, parents, and general teachers answered that health education in the classroom is favorable 1 to 2 hours per week. Conclusion : As results of the study , the majority of students, parents, general teachers agreed needs of health education. Therefore, on the basis of this study, systematic and continuous health education is necessary. Additionally the establishment of independent health subject is required certainly.

      • KCI등재

        초·중·고등학교 학생·학부모·일반교사의 보건교육 영역별 요구도와 보건교육

        윤순녕,김영임,최정명,조희순,김영희,박영남,오경순,이분옥,조선녀,조소영,한선희,하영미 韓國學校保健學會 2005 韓國學校保健學會誌 Vol.18 No.1

        Purpose: The purpose of this study was to identify the needs of health education in students, their parents and teachers in the elementary, middle and high schools and the current situation of health education class. Method: The subjects of this study were a total of 9450 persons including students, their parents and teachers from 279 schools throughout the country. They were selected through convenient sampling. Data were analyzed through x^(2)­test and ANOVA. Result: Students, their parents and teachers replied that 18 dimensions of health education class (DHEC) are necessary. The four DHEC - healthier life style, sex education, mental health and safety education - showed high educational needs in students, their parents, and teacher. High school students had higher educational need of 'symptom management for daily living' than elementary and middle school students. Students, their parents and teachers in elementary school had higher educational needs of 17 DHEC that those in middle and high school. The percentages of schools with health education class taught by health teachers were 99.2%, 75.5% and 66.0% respectively in elementary, middle and high schools. Health education was given mainly using physical education classes at elementary schools, and creative class hours at middle and high schools. In general, health education took 1-3 hours per week at elementary schools, and less than an hour at middle and high schools. Conclusion: Therefore, based on the results, systematic health education class should begin from elementary school to meet the need of health education in students, their parents and teachers, and further study should be made on the number of hours required and the amount of contents of 18 DHEC.

      • KCI등재후보

        남산의 소나무림, 신갈나무림, 아까시나무림의 낙엽생산과 토양유기탄소 동태

        정헌모 ( Heon Mo Jeong ),김해란 ( Hae Ran Kim ),신동훈 ( Dong Hoon Shin ),이경미 ( Kyoung Mi Lee ),이승혁 ( Seung Hyuk Lee ),한영섭 ( Young Sub Han ),장래하 ( Rae Ha Jang ),이상경 ( Sang Kyeong Lee ),김태규 ( Tae Kyu Kim ),유영한 한국환경생물학회 2013 환경생물 : 환경생물학회지 Vol.31 No.2

        남산의 소나무림, 신갈나무림 그리고 아까시나무림에서 2008년 1월부터 2009년 12월까지의 월별 낙엽생산량과 토양의 유기탄소량을 조사하였다. 소나무림은 2008년과 2009년 모두 10월에 낙엽생산량이 가장 많았으며, 2008년 1월과 2009년 12월에 낙엽생산량이 가장 적었다. 신갈나무림은 2008년과 2009년 모두 11월에 낙엽생산량이 가장 많았으며, 2월에 낙엽생산량이 가장 적었다. 아까시나무림은 2008년 11월과 2009년 10월에 낙엽생산량이 가장 많았으며, 2008년 1월과 2009년 12월에 낙엽생산량이 가장 적었다. 이것은 한반도 중부에서 상록성의 소나무림이 낙엽성의 참나무숲 보다 더 일찍 낙엽이 진다는 것을 의미한다. 소나무림과 신갈나무림, 아까시나무림의 2년 평균의 낙엽생산량은 7.07, 6.36, 5.02 ton ha-1로 소나무가 가장 많았다. 소나무림과 신갈나무림, 아까시나무림의 2년 평균의 토양유기탄소량은 76.2, 68.6, 72.5 ton C ha-1로 소나무림에서 가장 많았다. 이처럼 소나무숲에서 높게 나타난 것은 남산에서 신갈나무나 아까시나무를 벌목하여 임목밀도가 줄었기 때문이다. The objective of this study was to estimate dynamics of litter production and soil organic carbon of Pinus densiflora forest, Quercus mongolica forest, and Rhobina pseudo-acasia forest at Mt. Nam as a part of Korea National Long-Term Ecological Research (KNLTER) from 2008 to 2009. Litter production of P. densiflora forest was the highest in October 2008, 2009 and the lowest in January 2008 and December 2009. Litter production of Q. mongolica forest was the highest in November and the lowest in February in 2008 and 2009. Litter production of R. pseudo-acacia forest was the highest in November in 2008 and October in 2009 and the lowest in January in 2008 and December in 2009. It means that leaves of P. densiflora forest shed earlier than deciduous oak forests in Korean central region. An average of litter production for 2 years was 7.07, 6.36, 4.66 ton ha-1 in P. densiflora forest, Q. mongolica forest, R. psuedo-acacia forest, respectively. An average of soil organic carbon matter for 2 years was 88.3, 76.5, 84.2 ton ha-1 in P. densiflora forest, Q. mongolica forest, R. psuedo-acacia forest, respectively.

      • 치환된 프로탈로시아닌의 합성 방법 연구

        河潤卿,金永寬,孫秉淸,申鉉萬,朴美敬 弘益大學校 科學技術硏究所 1996 科學技術硏究論文集 Vol.7 No.1

        The octadodecanoxy derivative of the phthalocyanine which has such long hydrocarbon chains around the skeleton of the phthalocyanine was synthesized. First of all, ortho-catechol was treated with 2 moles of 1-bromododecane to yield ortho-didodecanoxybenzene(I). Second, bromination of I resulted in dibromo-didodecanoxy benzene(II) where the para positions to the dodecanoxy groups were brominated. Finally, reaction of II with an excess of CuCN under an N₂atmosphere gave the intermediate dicyano-didodecanoxy-benzene(III), in situ, and futher heating in dry DMF with more CuCN gave the final product, octadodecanoxy derivative of the phthalocyanine. The synthetic method developed herein provides a general way to synthesize the variety of the phthalocyanines which displays many different substituents such as long hydrocarbons around its skeleton and contains a various metal inside of the phthalocyanine.

      • KCI등재후보

        3교대 근로자에서 교대근무기간과 혈압 및 심박수 변동성

        하미나,김재용,박정선,정호근 대한산업의학회 2001 대한직업환경의학회지 Vol.13 No.2

        목적 : 교대근무가 심혈관계에 미치는 만성적인 영향을 살펴보기 위하여 본 연구를 수행하였다. 방법 : 4조 3교대의 빠른 순환주기의 교대근무를 하는 1개 제조업체 남성근로자 134명을 대상으로 교대근무마다 혈압 및 심박수 변동성을 측정하였다. 교란변수로서 Karasek의 직무긴장도 모델에 의거한 49항목의 직무스트레스설문지를 이용하여 직무스트레스를 측정하였고, 수면유형과 흡연, 음주력 및 과거병력 등의 사항에 관한 설문조사를 실시하였다. 반복측정 자료의 분석을 위해 mixed model을 이용한 다변량 회귀분석을 수행하여, 교대근무기간과 혈압 및 심박수 변동성과의 관련성을 살펴보았다. 결과 : 대상 근로자의 평균연령은 29 세였다(범위 25∼44). 이들 중 77.9 % 는 현재도 흡연을 하고 있었고, 50 % 는 직무긴장도 모형에서 수동형이었다. 평균 총 교대근무기간은 5.21 년(범위 5.4 개월∼10년)이었다. 수면유형검사에서는, 극단적인 아침형이나 극단적인 저녁형은 없었다. 연령, 직무스트레스, 수면유형 및 흡연을 보정한 다변량 분석에서, 혈압은 총 교대근무기간이 증가함에 따라 통계학적으로 유의하게 증가하는 소견을 보였다(p(0.05). 심박수 변동성은 저주파 및 고주파 영역 모두에서 총 교대근무기간이 증가함에 따라 유의한 감소양상을 나타냈다(p<0.05) . 결론 : 본 연구의 결과는 교대근무가 혈압을 상승시키고 심박수 변동성을 감소시키는 것으로써 심혈관계 기능에 영향을 미침을 보여주었다. Objectives : This study was performed to investigate the chronic health effect of shift-work on cardiovascular system. Methods : We checked blood pressure(BP) and heart rate variability (HRV) at every shift on 134 male workers whose shift type was 8-hour and short rotating of 3 days shift interval. As confoundings, job stress was measured by Karasek's JCQ 49 items questionnaire and circardian type was assessed by morningness-eveningness questionnaire. Smoking and alcohol drinking habit, marital status and past medical history were also acquired. We used the method of repeated measured data analysis with mixed model to show the association between shiftwork duration and BP or HRV. Results : Average age of workers was 29 years olds(range 25∼44). Among them, 77.9 % were current smokers, 50 % were the passive type of job strain in Karasek's model. Mean shiftwork duration was 5.21 years(range 5.4 months∼10 years). In circadian type, no one was definitely morning type or definitely evening type. In multivariate analyses adjusted by age, job strain, shift, circadian rhythm and smoking, blood pressure were showed significantly increasing trends according to shiftwork duration in both systolic and diastolic (p(0.05) . Heart rate variability were also showed significantly decreasing trends according to shiftwork duration in both parasympathetic and sympathetic functions (p(0.05) . Conclusions : The results of this studs suggests the chronic negative health effect of shiftwork on cardiovascular system.

      • KCI등재후보

        우리 나라 보건관리대행서비스 평가 연구

        하은희,조수헌,김선민,주영수,한상환,하미나,권호장,홍윤철,김창엽 大韓産業醫學會 1998 대한직업환경의학회지 Vol.10 No.1

        Group occupational health service programme started in 1990 is one of the measures to cope with limited human and financial resources in occupational health. The programme has expanded rapidly to include 52 institutions, private as well as public, all over the country. In spite of its potential impact on health of employees and practice of occupational health in small and medium sized industries, comprehensive evaluation in terms of quality has not been tried. This study has aims to develop the criteria to assess the quality of newly developed group occupational health service programme, and to investigate the quality of institutions, and finally to develop policies for the quality improvement. 1) Criteria development : By defining occupational health services, in particular for small and medium sized industries, as one of the primary health care, followings are included as core elements of qualitative occupational health programme; accessibility, continuity, comprehensiveness, technical quality, intersectoral collaboration, emphasis on preventive services, community participation, and adequacy. Again each element is divided into five major components of national health system infrastructure developed by the World Health Organization; development of health resources, organized arrangement of resources, delivery of health care, economic support, and management. In turn, each component is categorized into three aspects of quality assessment, structure, process and outcome. Expert panel selected several criteria for each category to evaluate the programme. Criteria were modified according to each group of interviewees, to produce two sets of questionnaire, one for chief operating officer and another for nurses in the institutions, and the chief operating officer and workers in the workplace. 2) Subject : Of all 52 institutions, 25 voluntarily participated in the survey. At individual institution, chief operating officer and practicing nurses were interviewed in depth. After intensive education for interviewees, every interviewees, every interview was performed with standardized guideline and questionnaire. The quality of the 'Group occupational health service programme' was found to be lower than expected. Especially in continuity, comprehensiveness, technical quality, community participation and adequacy, lower quality in structural aspect was commonly identified throughout all the institutions,. Quality in terms of accessibility and continuity highly varied among institutions., To improve quality of the programme, more comprehensive and systematic programme such as accreditation has to be introduced. In addition, human resources, governmental fund and information systems for individual workers are to be developed. As a long range plan, integration of occupational health services into the national health systems and pooling of financial resources and planned allocation should be considered.

      • KCI등재

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