물둥구리 (Ilyocoris exclamationis)는 노린재목 물둥구리과(Naucoridae)에 속하는 종이다. 몸은 편평한 타원형으로 생겨 몸길이가 11～12.5mm 정도이며 몸의 앞쪽은 황녹색을 그리고 뒷부분은 황갈색을 띠는 수서 노린재 중에서 대표적인 예쁜 곤충이다. 물둥구리는 최근 서식처가 감소하고 있어 감소추세에 놓여 있다. 또한 유충과 성충시기에 강한 육식의 포식습성으로 사육이 어려운 종으로 알려져 있다. 반면에 자원곤충으로서 애완용으로 활용성이 높으며, 서식처 복원의 기술 확보가 절실한 실정에 놓여 있다. 따라서 이들의 잔존하는 서식처 환경을 재조명하고 사육가능성을 타진하고자 본 연구를 수행하였다. 잔존하는 물둥구리의 서식처의 환경은 둠벙으로서 유기물과 농약의 유입이 적은 Ⅱ급수의 수질과 β-중부수성의 오수계열에 속하였다. 사육 실험에서 산란은 주로 부엽식물인 마름의 다육성 엽병부에 하였음을 확인하였다. 개체당 평균 산란수는 126.6개인데, 엽병당 산란수는 4.09개로 나타났고, 개체별 부화는 9～28일이 소요되었다. 실내에서 성충을 사육했을 때, 성충 수명은 산란을 마치면서 종료되어 7월 중순까지로 나타났으며, 성충의 먹이원으로 냉동깔다구, 붕어치어 및 잠자리 유충이 모두 적절하였다.

To evaluate environment of farm lands using indicator insects and evaluation indices, the insect abundance of which is one of the major criteria for the evaluation of agricultural environment of farm land in urban areas and industrial complex, three sites (Ansan, Daesan, Suncheon) were designated and monitored from 2004 to 2006. The flora of agricultural land was more than urban areas and industrial complex of that in three sites. Soil, water and air pollution of urban areas and industrial complex were more serious than those of agricultural land in three sites. Overall population of insects were high from June to August in the surveyed three sites. Collected insects in agricultural land were 12 order, 106 family and 166 species, those in urban areas were 11 order, 102 family and 148 species, and in industrial complex were 11 order, 100 family and 152 species. Species and population belonging to Coleoptera was dominant in the surveyed sites. The insect diversity indices of farm land were 2.36 in agricultural land, 1.92 urban areas and industrial complex. And agricultural environment of agricultural land was good, urban areas was common and industrial complex was poor. Based on the major criteria of evaluation items, the criteria were selected as diversity index over 2.1, insect indicator Pheropsophus javanus in agricultural land, diversity index 1.5-2.0, insect indicator Nephotettix cincticeps in urban areas, diversity index below 1.5, insect indicator Pagria signata in industrial complex.

The main habitats of diving beetles in agricultural ecosystems were identified as ponds, irrigation channels, and reservoirs, where the water system is maintained throughout the year. Four species, Cybister japonicus, Cybister brevis, Hyphydrus japonicus and Noterus angustulus, were selected as biological indicators which can be used to evaluate the healthiness of the agricultural ecosystem. The species number of 4 indicator species, the species number of diving beetle species, and the diversity index were used as factors for environmental evaluation. The evaluation was classified into grades Ⅰ~Ⅳ. The non-fertilizer and non-pesticide agricultural practicing area and the sustainable agricultural practicing area were evaluated as grades Ⅰ~Ⅱ, and the general agricultural area to be relatively fine with a grade Ⅱ. However, the analysis indicated the agricultural areas near a residential area and an industrial complex to be poor with a grade of Ⅳ, suggesting that immediate improvement in the agricultural environment is needed.

Pure Bombus ignitus venom samples were submitted to two-dimensional gel electrophoresis. A total of 64 excised spots were analyzed by mass spectrometry. Three main proteins resulted in the identification have not been described in other bee venoms before. Dose-dependence against human carcinoma (Hep3B, BT-20, A549 and AGS) were observed from 1 ng/㎖ to 100 ng/㎖. Expecially, the treatment of 100 ng/㎖ B. ignitus venoms showed the highest cytotoxicity with 55% against hepatocellular carcinoma (Hep3B). The B. ignitus venoms showed strong antimicrobial activities against Enterococcus faecium and Shigella sonnei, and practically antimicrobial activity against the other microorganisms tested. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of E. faecium and S. sonnei, were 0.256 ug/㎖, respectively.

본 연구에서는 기존의 공조방식 및 본 연구에 제안된 개별환경제어시스템(PEM)으로부터 재실자가 거주하여 사용하고 있는 컴퓨터룸(CR)에 대해 기하학적으로 3차원 시뮬레이션을 수행하여 CR의 열취득과 재실자 온열 쾌적감을 감성공학적 측면에서 분석하였다. 본 연구로부터 바닥으로부터 공기를 유입하여 천정으로 유출하는 바닥취출공조(TAM)방식이 실내 환경 개선에 유리하고 디퓨저만을 통하여 공기가 유입되어 천정과 바닥으로 공가가 유출되는 개별공조(PEM) 방식은 열적 냉각 성능은 좋으나 컴퓨터와 재실자 주변에 강력한 재순환 유동을 유인하여 실내 환경의 쾌적감 측면에서는 불리하다. 그러나 PEM과 TAM방식의 결합이 감성공학적 온열특성 분포로부터 CR의 재실자 주변온도 분포에 최적임을 알 수 있다.

This study investigated the effect of vegetation mat on plant growth and salt reduction in the soil treated with high concentration deicing salt. In order to measure soil chemical characteristics and plant growth, three native groundcover plants (Dendranthema zawadskii var. latilobum, Dendranthema boreale, and Kalimeris yomena) were grown in each of the three plastic containers (50.0 cm width × 35.0 cm length × 8.5 cm deep) with a high concentration treatment of calcium chloride deicing salt. There were two treatments: control, and BVM that combines B (blanket) and VM (vegetation mat). 1,600 g of soil was placed on the top of the drainage layer with 290 g of perlite, 100 seeds each of the three native plants with three repetitions were sowed, and 10 g/L of calcium chloride deicing salt was added in the treatment. As a result of the chemical properties of soil, soil in control treatment was acidic and soil electrical conductivity in BVM was the lowest. Also, exchangeable cations (K+, Ca2+, Na+, and Mg2+) in soil and all the three plants were significantly decreased in the BVM treatment. Meanwhile, the germination rate of Dendranthema zawadskii var. latilobum was the highest under high concentration deicing salt in compared to the two plants. Overall, three native groundcover plant growth was higher in the BVM than control treatment significantly. These results suggest that the treatment of blanket vegetation mat has a positive effect on soil and plant growth in soil damaged by deicing salt.

This research aims to identify the possibility of developing A horizon resources that can be used for construction and civil engineering work. As such, the utility of A horizon resources was examined by establishing planting ground through a mixture of soil layers and by analyzing the growth and development of Pinus densiflora. The physicochemical and physical properties of the soil were as follows: the A horizon was sandy clay loam, B horizon was sandy loam, and the mixture of two layers appeared as sandy loam, which was identical to the B horizon. The experimental groups did not show any significant difference in their physical properties of porosity and degree of water-stable aggregates. With regards to chemical properties, the A horizon as well as the mixture of A and B horizon showed acidity while the B horizon showed alkalinity. The figures of organic matter, total nitrogen, available phosphate, and replaceable potassium were greater as the A horizon content increased, whereas the figures of replaceable calcium, replaceable magnesium, and conductivity increased as the A horizon content decreased. As a result of the growth and development of Pinus densiflora in each planting ground, the final survival rates were all above 100%. However, the tree height and the rate of growth for the diameter of root were higher in the order of A horizon > A horizon + B horizon > B horizon,indicating that the increased A horizon content is related to the growth and development of Pinus densiflora. The treatment of soil with improvement agents, used to recover the functions of in-situ soil showing poor growth and development, did not have a clear impact on the soil texture and porosity. However, the degree of water-stable aggregates increased significantly when using O horizon as the soil improvement agent among the types of in-situ soil. In contrast, all items related to the chemical properties showed significant differences following the treatment by soil improvement agents. The survival rate according to the treatment of soil improvement agents for the growth and development of Pinus densiflora was higher in the order of organic horizon = no treatment > compound fertilizer > organic fertilizer + compound fertilizer > organic fertilizer; this result was statistically significant with a marginal significance value of the log-rank test(p < 0.05).

This study aimed to analyze the growth and physical responsees of Dracaena braunii in response salt accumulation in ornamental water culture and to examine the effect of activated carbon on this growth response. The experiment was conducted in a plant growth chamber and the indoor environmental conditions of the chamber were set at 23 ± 1℃ temperature, 70 ± 3% humidity, and 1,000 lux brightness. The observation of the growth response of plants in the presence of activated carbon showed that the pH with activated carbon maintained sub-acidic to neutral (6.27∼7.32) conditions and showed decreased electric conductivity in the media. As the treatment with added activated carbon showed good growth and physical responses, this indicated that absorption effect of activated carbon had a positive influence on the growth of plants. However, as the absorption effect of activated carbon may decrease over time and the use of high concentrations of activated carbon might cause nutrition shortage, various concentration of activated carbon and their absorption effects need to be investigated in the future.

The purpose of this study is to analyze the cases of Asan-si and Hongseong-gun in Chungcheongnam-do to derive the direction of development of the school meal support center and improvement of the school meal policy in connection with local food. We conducted a survey on the importance and performance of school meal support policy and local food supply policy for nutritionists in two areas. In addition, we identified the issues to be improved intensively and the issues to be continuously managed over the medium to long term, and suggested directions for improvement using IPA. As a result of the importance-performance analysis of school meal support policy and local food supply policy, both Asan-si and Hongseong- gun. focused on improving the price and quality of local food.

This study was conducted to investigate the influence of hydrophilic polymer (HP) mixture ratio (Control, 1.0%, 2.5%, 5.0%, and 10.0%) on growth of eggplant (Solanum melongena) for lower maintenance urban agriculture via green roofs. Although it was not statistically significant (p > 0.05), substrate temperature was decreased as hydrophilic polymer mixture ratio were increased. High substrate water content (95%) was found consistently in growing media under elevated hydrophilic polymer mixture ratio at over 5% during the entire growing period. Substrate electronic conductivity was increased as hydrophilic polymer mixture ratio were increased. Growth index was decreased as hydrophilic polymer mixture ratio was increased. It was reduced about 1/3 and 1/5 compared to that of Control in HP5.0 and HP10.0 treatment plants, respectively. Number of leaves, leaf length, and leaf width were decreased in following order: Control> HP1.0> HP2.5> HP5.0> HP10.0 treatments. There numbers were significantly lower in HP5.0 and HP10.0 treatment plants. Dry weight of shoot and root were decreased as hydrophilic polymer mixture ratio was increased. They were reduced by 1/4 compared to those of Control treatment plants. In addition, visual value was decreased as hydrophilic polymer mixture ratio was increased. Plants grown in HP1.0, HP2.5, and HP5.0 treatments all survived. However, plants grown in the HP10.0 treatment had the lowest survival rate (56%) after 3 months of growing. These results indicate that the advantage of adding hydrophilic polymer to green roof growing media may greater during dry periods. However, the proper mixture proportion of hydrophilic polymer should be determined according to different characteristics of growing media and plant species.

This study was aimed to determine effects of soil organic amendment as plant growing media component on restoration of planting ground. The changes of soil physical and chemical properties and germination and growth of kentucky bluegrass (Poa pratensis L.) were investigated. For treatments, soil was excavated at depth of 0-50 cm (referred as S1) and at depth of 50-100 cm (referred as S2). Then the half amount of S1 soil was mixed with the soil organic amendment (coir dust 40% (v/v), bottom ash 25%, leaf mold 25%, vermiculite 5%, carbonized rice hull 5%) at a rate of 6% (v/v) (referred as S1CC) and also the half amount of S2 soil was mixed with the soil organic amendment at a rate of 6% (v/v) (referred as S2CC) on pot in a 16 cm diameter and 14 cm height. The experiment was replicated 3 times with 3 pots per replication in randomized block design, and 100 seeds were planted per pot. In results, there was no significant difference in soil pH among the treatments with a slight decrease in soil hydraulic conductivity. However, in the S1CC treatment, positive increases in soil chemical properties, including electrical conductivity, organic matter, phosphoric acid, total nitrogen, exchangeable cation, and cation exchange capacity. Also, the germination rate, plant height, and number of leaves were higher in the S1CC treatment than those in other treatments. These results suggest that the addition of organic amendment to the soil at depth of 0-50 cm might be proper for restoring planting ground.

The objectives of this study were to assess plant growth of the flowering shrub species for adapting to growing on hanging baskets in the vertical greenery system with different cover materials and substrates for low maintenance effectively utilizing rainfall. Water amount taken up by the fabric cover was higher than that by the plastic film cover. Evaporated water amount from the fabric cover was much slower than that from the plastic cover. A higher ratio of hydrophilic polymer to the substrate resulted in higher substrate water content within the same cover material. The relative growth rates of plant height, leaf width and stem diameter were higher when the Cotoneaster horizontal was grown in the vertical greenery system with the fabric cover, whereas the leaf number and survival rate were higher with the plastic film cover. The relative growth rates of plant height, leaf width and leaf number and the survival rate was higher when the Euonymus fortunei ‘Emerald n Gold’ was grown in the vertical greenery system with plastic film cover than those with both fabric cover and hydrophilic polymer treatment. In contrast, the stem diameter of Euonymus fortunei ‘Emerald n Gold’ was higher in the plants grown in the vertical greenery system with the fabric cover at a 1.0% ratio of hydrophilic polymer to substrate than that with plastic film cover. The highest stem diameter of Spiraea × bumalda ‘Gold Mound’ was observed in the plant grown in the vertical greenery system with fabric cover and at a 1.0% ratio of hydrophilic polymer to substrate, while there was no significant difference in the plant height. The leaf number was decreased with increase in the ratio of hydrophilic polymer to substrate, while the leaf width was decreased. The survival rate of Spiraea × bumalda ‘Gold Mound’ was higher than 80% regardless of treatments. In particular, the highest survival rate was observed in the plastic film cover treatment after overwintering.

이 연구의 목적은 6 MV 광자 빔에 대하여 팬텀 표면으로부터 1 cm 깊이에서 조사야 가장자리 바깥 축외선량비와 1 mmPb의 차폐비를 조사하는 데 있다. 180 cGy의 선량은 SAD기법에서 10×10cm2와 15×15cm2 조사야에 대하여 깊이 10 cm에 전달되었다. 축외선량비는 조사야의 중심축과 가장자리로부터 2, 4, 6 cm에 위치된 광자극형광나노닷선량계(OSLnD)들의 선량을 측정하여 계산하였다. 그리고 1 mmPb의 차폐비는 조사야 가장자리로부터 2, 4, 6 cm에 위치된 OSLnD들의 선량을 측정하여 산출하였다. 결과로서, 10×10cm2와 15×15cm2 조사야에 대하여, 축외선량비들은 0.008-0.023과 0.011-0.028을 각각 얻었다. 또한 1 mmPb의 차폐비들은 0.868-0.888과 0.807-0.842을 각각 얻었다. 이 결과들은 방사선치료 조사야 바깥에 위치한 위험장기들을 보호하기 위한 자료를 제공한다.

본 연구는 옥상녹화에서 무기질계 인공토와 유기질계 인공토가 초본인 돌나물과 목본인 순비기나무의 생육에 미치는 영향을 살펴 봄으로써 유기질계 인공토의 효용성을 제시하고자 한다. 연구기간 은 2013년 5월에서 10월로 약 5개월이며, 식물종은 초본류에 돌나 물을, 목본류에 순비기나무를 대상으로 무기질계 인공토(Inorganic substrate=perlite, IOS), 자연토(natural soil, NS), 유기질계 인공 토Ⅰ(organic substrate=artificial compost Ⅰ, OS1), 유기질계 인공토 Ⅱ(organic substrate=artificial compost Ⅱ, OS2)로 구 성하였다. 돌나물의 초장, 줄기수, 엽수, 상대엽록소함량비는 유기 질계 인공토 Ⅰ처리구(OS1)> 자연토 처리구(NS)> 무기질계 인 공토(IOS) 순으로 높았으며, 통계적인 차이가 뚜렷하였다. 생체중 과 건물중 또한 OS1, NS, IOS 처리구 순으로 생육결과와 비교적 유사한 경향을 보였다. 순비기나무는 수고, 경경, 엽장, 엽폭은 유기 질계 인공토 Ⅱ(OS2)> 자연토 처리구(NS)> 무기질계 인공토 (IOS) 순으로 유의적으로 높았으며, 특히 유기질계 인공토 Ⅱ 처리 구에서 단기간의 실험임에도 불구하고 그 차이가 뚜렷했다. 이에 옥상녹화의 식재지반에서 무기질계 인공토의 단용처리는 식물생 육에 부정적인 영향을 미칠 수 있으므로 식물생육을 위한 적정비율 의 유기질계 인공토의 활용이 요구된다.

In this study, one of the measures for the promotion of the growth of trees planted in poor drainage areas, which functionality pipe supplying oxygen in the soil, and promotes drainage, barren soil and poor drainage areas in planting design was to provide the basic data to compare the impact on the application of functionality pipe. The Zelkova serrata testing materials were selected, planted a total of 12 by three to four individual experiments were conducted. Growth measurements of the items Plot A > Plot C > Plot D > Plot B were excellent in the order of height, number of leaves, leaf width, and chlorophyll content, Plot A > Plot C > Plot D > Plot B was in good order of the growth of the length of the root-collar diameter, Plot C > Plot A > Plot B > Plot D in order rate of variation was good. This has adverse effects on plant growth, poor drainage planting base represents, promote drainage and oxygen supply technique can be applied good to the planting from Zelkova serrata growth based drainage is poor and barren presented as part of research to be done in the future include a means for promoting the growth of plants in soil, the planting design.