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연구논문 : 친환경농업(親環境農業) 상추재배의 EM(유효미생물군(有效微生物群)) 미생물제제 시용효과(施用效果)에 관한 연구(硏究)
안승원 ( Seoung Won Ann ) 한국녹지환경디자인학회 2005 녹지환경학회지 Vol.1 No.1
This study was conducted to investigate the effects of EM(Effective Microorganisms) on growth and quality of lettuce for system of organic agriculture. Chemical characteristics such as soil acidity, organic matters, and conductivity were nor significantly changed between before and after the experiment. Those were not different between treated and untreated. Therefore treatment of EM did not affect on chemical characteristics of soil. Total production of EM and chemical fertilizer treated plants were 22.6 to 33.6% more than that of untreated plant. Ratio of total weight from dry weight were 22.0 to 32.2% in above ground part of plant and 31.0 to 43.7% in under ground plant. However there was no difference between EM and chemical fertilizer treated of total production. Leaf production of EM and chemical fertilizer treated plants were 27.1 to 30.4% more than that of untreated plant. However there was no difference between EM and chemical fertilizer treated plants. Therefore EM application on organic agriculture may have effective on reclamation of soil eco-system and improvement of plant cultivation environment without any yield loss. Calorie and general contents such as water, fat, protein, and carbohydrate were not different between treated and untreated plant. Inorganic matters such as T-N, P2O5, K2O, CaO, and MgO were also not different. Vitamin C contents were 11.7, 14.3~15.8, and 17.5mg/100g in chemical, EM, and untreated plants, respectively. However nitrates contents were 132, 78~81, and 72mg/100g in chemical, EM, and untreated plants, respectively. Therefore vitamin C and nitrate contents were negatively correlated. EM treatment did not produce any malformation and, less differences among newly formed leaf form a original individual. Lettuce treated with EM did not have any problem on quality and did not give any aversion to people. Therefore use of EM could produce organic agriculture without any damage to plant when it is used in the way as used in this study.
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연구논문 : 4년생 "Fuji" 사과나무의 하수형 재배시 적엽처리 효과
상혜영 ( Hye Young Sang ),이재영 ( Jae Young Lee ),정혜웅 ( Hae Woong Jung ),박희승 ( Hee Seung Park ) 한국녹지환경디자인학회 2005 녹지환경학회지 Vol.1 No.2
A series of experiments were conducted to observe defoliating effect on fruit quality in 4-year-old `Fuji`/M.9 apple trees. The degree and the applying time of defoliation did not alter the amount of light penetration and anthocyanin content in 4-year-old `Fuji` apple trees. Defoliation increased fruit diameter as it performed at 20 days before harvesting for `Fuji` apple trees. But, defoliation little affected to deciding factors of fruit quality including Brix degree, titratable acidity, and flesh firmness, which was caused from the complex conditions of their younger tree age and better light conditions.
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충주시 토지이용형태별 미세먼지 농도와 가로수의 생리적 변화에 관한 연구
백철종 ( Cheol Jung Baek ),윤용한 ( Yong Han Yoon ),박봉주 ( Bong Ju Park ),김원태 ( Won Tae Kim ) 한국녹지환경디자인학회 2007 녹지환경학회지 Vol.3 No.2
This study measured the physiological variation of roadside tree and fine paticle concentration according to variation land-use types(commercial districts, residential districts, greenspace) of Chungju and obtained the following results. 1. To recognize how the variation of daily fine particle in Chungju affects the land-use types, this study compared and examined the variation of density in commercial districts, residential districts, greenspace. As a result, density of fine particle was high in the order of commercial districts>residential districts>greenspace and daily average density of fine particle in commercial districts for 2005 was found to exceed over 2 times of National Environmental Standard(50μg/m3), requiring measures against this. 2. With regard to seasonal density feature of fine particle, commercial districts recorded 74.3μg/m3 at spring, 31.2μg/m3 at summer, 40.7μg/m3 at fall and 44.7μg/m3 at winter; residential districts recorded average density of 66.2μg/m3 at spring, 27.7μg/m3 at summer, 38.0μg/m3 at fall and 37.5μg/m3 at winter. Greenspace recorded 40.5μg/m3 at spring, 17.8μg/m3 at summer, 26.8μg/m3 at fall and 27.2μg/m3 at winter. In terms of season, density was highest at spring, followed by winter, fall and summer. 3. With regard to variation in density of fine particle per wind direction, wind from north(N) recorded the highest density, followed by wind from west-north-west(WNW), wind from south-west(SW) or west-south-west(WSW), demonstrating that relatively high density was measured mainly at wind from northwest or southwest. It is determined that northwest or southwest direction plays a main role in pollution by fine particle in Chungju. 4. With regard to variation in density of fine particle according to wind velocity, density increases gradually up to wind velocity of about 2.5m/s and no more change was found over that. 5. As a result of analyzing photosynthesis ability and contents of chlorophyll to clarify effects of air pollution at Chungju downtown on plants, it was found about that photosynthesis ability and contents of chlorophyll of Ginkgo biloba at parks were found to be higher than those at commercial districts. With regard to stomatal conductance its decrease in commercial districts showed similar tendency as that of photosynthesis, showing positive correlation between speed of photosynthesis and stomatal conductance.
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학교숲 조성이 초등학생의 환경의식과 태도에 미치는 영향
한수연 ( Soo Yeon Han ),윤용한 ( Yong Han Yoon ),박봉주 ( Bong Ju Park ),김원태 ( Won Tae Kim ),국지하 ( Ji Ha Kuk ) 한국녹지환경디자인학회 2008 녹지환경학회지 Vol.4 No.1
The present study purposed to survey the state of environmental education using school forests and to examine the effects of school forests on elementary students` environmental consciousness and attitude, and ultimately to provide basic materials for making plans to utilize school forests in environmental education. According to the results of this study, the frequency of environmental education, the use of school landscape in environmental education, etc. in elementary school were low, and a main reason for that was that current environmental education was executed mostly through lecture-based classes. Elementary students` environmental consciousness was found to be significantly correlated with the number of flowerpots at home. This suggests that students` environmental consciousness can be developed naturally while they contact and raise plants by themselves.
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