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광릉 시험림 내의 낙엽의 분해와 분해과정에 따른 영양염류의 변화
유영한(Young Han You),남궁정(Jeong Namgung),이윤영(Yun Young Lee),김정희(Jeong Hee Kim),이종영(Jong Young Lee),문형태(Hyeong Tae Mun) 한국산림과학회 2000 한국산림과학회지 Vol.89 No.1
Mass loss and dynamics of mineral nutrient during decomposition of deciduous leaves and 3 species of needles were investigated for 38 months from October in 1992 to November in 1995 in Kwangneung, Korea. After 38 months, the remaining mass of deciduous leaves, Pinus koraiensis, Pinus rigida and Abies holophylla was 16.2%, 29.8%, 33.5% and 53.9%, respectively. The decay rate (k) of deciduous leaves, Pinus koraiensis, Pinus rigida and Abies holophylla was 0.61, 0.40, 0.37, 0.21yr^-1, respectively. The lowest decay rate in fir needle might be, in part, due to low N concentration. N concentration of the decomposing litter increased during the experimental period except for P. rigida. Deciduous leaves showed a short immobilization period during the early stage of decomposition, and big-cone pine and pitch pine had no immobilization period. However, there was no net N mineralization in fir litter. P increased during the experimental period for all litter. Except for deciduous leaves, there was no net mineralization period. In case of deciduous leaves, however, remaining P after 38 months was 53% of the initial P capital. Remaining cations of the decomposing litter after 38 months were lower than those of initial contents.
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제5분과 : 계획 관리 및 서비스 ; 지방대학특성화(CK-1) 사업: 공주대 ECO기후환경융합인력양성사업단
유영한 ( Young Han You ) 한국환경생태학회 2015 한국환경생태학회 학술대회지 Vol.2015 No.1
□ 특성화 사업단의 교육비전과 목표○ 사업단 교육비전은 “국가 지역사회의 안전 녹색경제발전에 기여“에 있음 ○ 교육목표는 “기후변화관련 기본 응용 교육과 현장훈련을 통한 관련분야 융합 지식을 갖춘 전문 인재 양성“임 ○ 주요 추진전략은 “교육시스템의 혁신”에 있음 □ 특성화 사업단 지원 및 육성 전략 ○ 3개의 사업부(기획부/행정부, 사업부, 국제/산학협력부)와 사업단 운영·자문을 지원하는 2개의 위원회(운영위원회, 외부 자문·평가 위원회)로 구성
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목본성 자생종과 침입종의 기후변화와 질소첨가에 따른 생육반응
유영한 ( Young-han You ),장래하 ( Rae-ha Jang ) 한국환경생태학회 2016 한국환경생태학회 학술대회지 Vol.2016 No.2
자생종인 소나무, 잣나무, 신갈나무와 침입종인 은단풍, 족제비싸리의 생장에 기후변화와 질소첨가가 어떠한 영향을 미치는지 알아보고자 온도와 CO<sub>2</sub>농도가 증가된 기후변화처리구와 증가되지 않은 기후변화무처리구에서 질소비료를 처리하지 않은 질소비처리구와 질소처리구 화분을 만들었다. 소나무, 잣나무, 족제비싸리는 질소비료를 1g과 5g처리하였고, 신갈나무와 은단풍은 질소비료를 2g과 20g을 처리하였다. 2015년 6월부터 9월까지 2주 간격으로 신지길이, 신지 직경, 잎의 길이를 측정하였고, 2016년 7월에 신지 길이를 측정하였다. 이 결과 자생종인 잣나무는 질소처리 그리고 신갈나무는 기후변화처리에 큰 영향을 받지 않았다. 침입종인 족제비싸리와 은단풍은 질소농도처리에 큰 영향을 받지 않았다. 하지만 자생종 중 소나무는 기후변화처리에 부정적인 영향을 받았지만, 잣나무는 긍정적인 영향을 받았다. 자생종인 신갈나무는 2015년에 질소처리에 큰 영향을 받았지만 2016년에는 영향을 받지 않았다. 침입종인 은단풍도 2015년에 기후변화처리보다는 질소처리에 더 큰 영향을 받았지만 2016년에는 차이가 없었다. 이로보아 온도와 CO<sub>2</sub>농도 그리고 질소농도가 증가하여도 침입종에게 더 유리하다고 할 수는 없다. 각 식물의 환경요인에 따른 종특이성에 따라 각 식물의 생장반응이 결정되고 주어진 환경에 적응을 하므로, 다양한 식물에 대한 정밀한 연구가 필요하다.
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7차 초등학교 교과서의 생명영역에 나타난 생태분류학적,논리적 오류, 오개념과 이의 정정 및 그 개선안
유영한 ( Young Han You ),손영목 ( Young Mok Son ),이희선 ( Hee Sun Lee ),유미애 ( Mi Ae You ),김미희 ( Mi Hee Kim ),이창석 ( Chang Seok Lee ) 한국생물교육학회 2002 생물교육 Vol.30 No.4
We analysed and corrected the errors and misconceptions in the life science part of the 7th elementary school textbooks with special reference to ecology, taxonomy and logic, and then corrected it, finally suggested the strategy to reduce the ones in the textbooks. The number of error and misconception items of each field was 25 in ecology, 59 in taxonomy, and 36 in logic, respectively. These errors and misconceptions were found through out all the 7th elementary school textbooks, especially high in the legends, contents of figures, photographs and the sections of something reading. We corrected them on the base of cited literatures. In order to reduce the error and misconception in the life science parts of the elementary school textbooks, it was addressed that experts major in taxonomy and ecology should participate in the writing and editing the textbooks, and there are should be enough time more than years to prepare the textbooks.
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수변 복원 시 식물종 다양성 증진을 위한 β-diversity 연구
한영섭,김해란,한승주,정중규,이승혁,장래하,조규태,강대균,유영한,Han, Young-Sub,Kim, Hae-Ran,Han, Seung-Ju,Jeong, Jung-Kyu,Lee, Seung-Hyuk,Jang, Rae-Ha,Cho, Kyu-Tae,Kang, Tay-Gyoon,You, Young-Han 한국습지학회 2013 한국습지학회지 Vol.15 No.4
We have researched heterogeneity of naturalized river plant community by ${\beta}$-diversity for restoration of river community which has high diversity plant species. As a result the average of heterogeneity was 0.32(range 0.23~0.37) from the river to the inland. This value shows community turnover of species composition of plant communities 6 times. The ${\beta}$-diversity was no difference among water system of Seomjin river, Han river, Nakdong river and Geum river. The upper-river valley(0.36) was higher than lower-river valley(0.23) in each water system(p level<0.05). Multiple regressing analysis was used for look the relationship with Environmental factors as a result, it shows ${\beta}$-diversity significant on a slope. River mimetic diagram with dominant species that appear through Belt-transect painted. Dominant plant species turned 6 time in upper-river and turned about 5 time in lower-river. The result of this study suggested practical basis of planting species and planting pattern. To improve species diversity of river plant community, slope degree raise is the most important.
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산림 소유역 생태계에서 질소와 황의 유입량, 유출량과 물질수지
유영한,김준호,문형태,이창석,You, Young-Han,Kim, Joon-Ho,Mun, Hyeong-Tae,Lee, Chang-Seok 한국생태학회 2002 Journal of Ecology and Environment Vol.25 No.3
In order to elucidate the budget and cycling of Nitrogen and Sulfur, essential elements and principal constituents of acid rain, their input through precipitation, and their output by streamflow were quantified in coniferous and deciduous forested watersheds, using combination of nutrient concentration and hydrological analysis, in Kwangnung Experimental Forest from July 1991 to December 1993. Amount of annual mean precipitation was $12,916\;ton{\cdot}ha^{-1}{\cdot}yr^{-1}$, annual mean runoff $5,094\;ton{\cdot}ha^{-1}{\cdot}yr^{-1}$(39%), $7,467\;ton{\cdot}ha^{-1}{\cdot}yr^{-1}$(59%) in coniferous and deciduous forest watersheds, respectively. Amounts of annual input of $N({NO_3}^-+{NH_4}^+)$ and ${SO_4}^{2-}$ through preciptation were 12.5, $81.72\;kg{\cdot}ha^{-1}{\cdot}yr^{-1}$, repectively. Annual output via runoff of $N({NO_3}^-+{NH_4}^+)$ and ${SO_4}^{2-}$ were 0.06, $39.23\;ton{\cdot}ha^{-1}{\cdot}yr^{-1}$ in the coniferous forest watershed ecosystem, and 0.15, $55.46\;ton{\cdot}ha^{-1}{\cdot}yr^{-1}$ in the deciduous one, respectively. On the basis of annual nutrient input and output, the annual budget of $N({NO_3}^-+{NH_4}^+)$ and ${SO_4}^{2-}$ were +12.46, $+42.49\;ton{\cdot}ha^{-1}{\cdot}yr^{-1}$ in the coniferous forest watershed, and +11.35, $+26.26\;ton{\cdot}ha^{-1}{\cdot}yr^{-1}$ in the deciduous one. Thus $N({NO_3}^-+{NH_4}^+)$ and ${SO_4}^{2-}$ were accumulated in both forested watershed ecosystems.
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