Papers - UEHARA Iwao
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Intake of Radionuclides in the Trees of Fukushima Forests 1. Field Study Reviewed International journal
Aoki Shoko , Nonaka Miki , Itakura Masateru , Tsubokura Masaharu , Baba Kei'ichi , Ohbayashi Hiroya , Sugawara Izumi , Seyama Tomoko , Uehara Iwao , Kaida Rumi , Taji Teruaki , Sakata Yoichi , Hayashi Takahisa
Forests 10 ( 8 ) 2019.08
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
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Mycorrhizosphere Bacterial Communities and their Sensitivity to Antibacterial Activity of Ectomycorrhizal Fungi Reviewed
SHIRAKAWA MAKOTO , UEHARA IWAO , TANAKA MEGUMI
Microbes and environments 34 ( 2 ) 191 - 198 2019
Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)
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Antibacterial effects of pyroligneous acid of Larix kaempferi Reviewed
Iwao UEHARA, Megumi TANAKA
Journal of Forest and Human Health Promotion Research 2 14 - 19 2018.03
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：The Society of Forest Amenity and Human Health Promotion in Japan
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Natural distribution of Pterostyrax hispida under the tree canopies of artificial Larix leptolepis stand. Reviewed
Iwao UEHARA
Kanto Journal of Forest Research 68 ( 2 ) 217 - 220 2017.11
Language：English Publishing type：Research paper (scientific journal) Publisher：Society of Kanto Forest
Pterostyrax hispida sometimes grows in colonies under the artificial Larix leotolepis stands in the Kanto districts or Central part of Japan. This study researched the natural distribution of Pterostyrax hispida at artificial Larix leptolepis stands in the 800 to 900 meters altitude in the Okutama Training Forest of Tokyo University of Agriculture. The Pterostyrax hispida colonies were often luxuriant under the Larix leptolepis tree canopies, but they were decreased under the Criptomeria japonica and Chamaecyparis obtusa canopies. The growth of Pterostyrax colonies also showed proportion with the tree height difference between Pterostyrax and Larix, or growth of the tree canopies of Larix. Those conditions must be suitable for Pterostyrax growth, because the light condition were profitable for them. However, growing in colonies of Pterostyrax restrained the other woody plants under the tree canopies of Larix. At the clay soil stands, the average height of Pterostyrax was low and their colonies decreased, too. It also showed the Pterostyrax has possibility as an indicator of soil condition.
Keywords: Pterostyrax hispida, Larix leptolepis, colony, tree canopies, indicator -
Cuttings of Lindera umbellata Thunb. and Lindera umbellata Thunb. var. membranacea Reviewed
UEHARA Iwao
Chubu Forestry Research 65 11 - 14 2017.04
Language：English Publishing type：Research paper (scientific journal)
Abstract: Lindera umbellata Thunb has a special sweet fragrance. It has been used as tooth picks for Japanese traditional cakes, but recently it has been also utilized as medical liquor and a bath solution. Demands for it as a medical plant have been also increasing. Therefore, producing stocks has another possibility for rural forests. This study attempted to make cuttings of Lindera umbellata Thunb and Lindera umbellata Thunb. var. membranacea (Maxim.) Momiyama. Each of the cutting materials was collected before leaves bloomed leaves in the middle of April in 2016. The cuttings were two types; 10cm and 20cm long and planted in a planter (60cm long × 22cm wide × 16cm depth). 15 cuttings were planted in each planter for a total of 90 cuttings planted for each of the types. The nursery bed for this experiment was soil for gardening (Kanuma soil). The percentage of blooming leaves of Lindera umbellata Thunb.was 80 percent and var. membranacea was 70 percent. However, the percentage of rooting for Lindera umbellata Thunb. was only 5 percent and var. membranacea was 15 percent. 15% of var. membranacea had callus. A survival rate of Lindera umbellata was 20% and var. membranacea was 30%. Measurement of data by SPAD of stocks with roots or callus were significantly higher than stocks without them (p<0.005).
Keywords: cuttings, Lindera umbellata Thunb, Lindera umbellata Thunb. var. membranacea (Maxim.) Momiyama -
Seminar and practice of Silviculture Laboratory of Tokyo University of Agriculture (TUA) Reviewed
Iwao UEHARA, Megumi TANAKA, Izumi SUGAWARA
Chubu Forestry Research 65 55 - 58 2017.04
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
The Forest Science Department (annual capacity: 140 students) of Tokyo University of Agriculture (TUA) has a special education system which contains 9 laboratories. These 9 laboratories are Silviculture, Forest Ecology, Erosion Control and Revegetation Engineering, Forest Engineering, Forest Products Chemistry, Wood Science and Technology, Forest Management, Forest Policy, and an electron microscope laboratory. In each laboratory students participate in seminars, experiments, filed study, and a graduate thesis research. Junior students are selected and are able to join in one of the laboratories. Silviculture is a subject which consists of various fields such as forest ecology, tree physiology, forest soil, forest aesthetics, and so forth. Therefore, Silviculture Laboratory also includes various field seminars, experiments, and field studies. The studies are mainly practiced in the field which aims to allow the acquisition of multiple viewpoints. The topics include seeds, cuttings, nurseries, tree observations, field trips, studies at Okutama Practice Forest, Fuji experiment forest, and other forest fields. Junior students learn various skills of the studies and decide on their own graduate thesis theme. We surveyed students through a questionnaire in 2015 and 2016 and found vegetation survey is a key aspect among the practices.
Keywords: seminar, training, Silviculture laboratory, Tokyo University of Agriculture (TUA) -
身近な森林環境を利用したカウンセリングの特徴―「傾聴散策カウンセリング」の事例から― Reviewed
竹内啓恵.長井聡里.川畑真理子.上原巌
関東森林研究 68 ( 2 ) 105 - 108 2017.04
Authorship：Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)
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Attempts of cuttings utilizing Cryptomeria japonica, Chamaecyparis obtusa and Larix kaempferi wood for nursery bed. Reviewed
Iwao UEHARA
Kanto Journal of Forest Research 67 ( 2 ) 259 - 262 2016.11
Language：English Publishing type：Research paper (scientific journal)
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Antibacterial effect of the pyroligneous acid of dumped mushroom bed Reviewed
Iwao UEHARA, Magumi TANAKA
森林応用研究 25 ( 2 ) 9 - 11 2016.10
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
Annually, enormous amounts of mushroom beds are dumped throughout Japan. Dealing with them is one of the difficult problems among mushroom farmers. In addition, the farmers fumble to find effective practical uses for these discarded mushrooms. This research examined the bacterial resistance of pyroligneous acid which is made from dumped mushroom beds. Experiments used Escherichia coli and Staphylococcus aureus subsp.aureus which are common bacteria in daily life. The experiment results showed pyroligneous acid was able to resist the growth of E.coli and Staphylococcus.
Keywords: dumped mushroom bed, pyroligneous acid, antibacterial effects, Escherichia coli, Staphylococcus aureus
キノコの人工栽培の際に生じる廃培地の処理は、キノコ農家にとって、大きな問題となっており、毎年膨大な量の廃培地が生じ、その対策や有効活用が模索されている。本研究では、その廃培地の製炭利用にあたり、その製炭化過程で発生する木酢液に着目をし、その抗菌試験をおこなった。抗菌の対象は、日常生活におけるありふれた菌として大腸菌と黄色ブドウ球菌を扱った。試験の結果、廃培地の木酢液には、ある程度の抗菌作用を持つことが認められた。
キーワード：キノコ廃培地，廃おがオイル，大腸菌，黄色ブドウ球菌 -
大阪府営服部緑地を利用した傾聴散策カウンセリングの試み Reviewed
竹内 啓恵 , 長井 聡里 , 川畑 真理子 , 上原 巌
東京農業大学農学集報 61 ( 2 ) 84 - 92 2016.09
Authorship：Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)
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里山を使用した傾聴散策カウンセリングの試みー長時間勤務の女性を対象としてー Reviewed
竹内啓恵.長井聡里.川畑真理子.上原巌
森林保健研究 1 14 - 24 2016.09
Authorship：Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)
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Realization of urban forest utilization as healing place -Attempts of promoting human health at urban forest- Invited Reviewed
UEHARA Iwao
Journal of Environmental Information Science 45 ( 2 ) 9 - 14 2016.08
Language：Japanese Publishing type：Research paper (scientific journal)
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Prospect and subjects of silviculture training at practice forest of Tokyo University of Agriculture Reviewed
Iwao UEHARA, Magumi TANAKA, Izumi SUGAWARA
中部森林研究 64 21 - 24 2016.04
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
During the 1970’s, there were 24 universities across Japan which had a forestry department. However, the forestry departments have lost their names or changed their name to Forest Science, Natural Resources, Bio-Environment, and so forth. This was done because the new departments have been trying to reform and reorganize themselves to obtain a more efficient curriculum. They have been also pushed by some problems trending at the times, social issues, the forestry business cycles, natural environment consciousness, and also the changing needs of the students. This research focuses on the silviculture training at a practice forest belonging to the Tokyo University of Agriculture (TUA). Silviculture training is a compulsory subject for sophomore students in the Forest Science Department of TUA. This study reports the aim, contents, number of students attending on training, as well as the teaching staff structure. In addition, we surveyed the students who attended the training in 2014 and 2015 and obtained input through a questionnaire directed towards the students. We also discuss the problems and prospects pertaining to silviculture training within a college education system.
Keywords: training, silviculture, practice forest, Tokyo University of Agriculture (TUA) -
南相馬とその周辺における東日本大震災以降の植生と植生景観の変動 Reviewed
中村 幸人 , 大渕 香菜子 , 西野 文貴 , 上原 巌
生態環境研究 23 ( 1 ) 51 - 77 2016
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
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働く女性を対象とした森林での傾聴散策カウンセリングの試み
竹内啓恵.長井聡里.川畑真理子.上原巌
関東森林研究 66 ( 2 ) 257 - 261 2015.06
Authorship：Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)
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Basic study on the antibacterial effects of volatile fragrance of Cercidiphyllaceae japonicum and Cedrus deodara Reviewed
Iwao UEHARA, Hiroe TAKEUCHI, Masatoshi KURAMOTO, Megumi TANAKA
関東森林研究 65 ( 2 ) 331 - 334 2014.07
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
This research examined the antibacterial effects of volatile fragrance of leaves of Cercidiphyllaceae japonicum and Cedrus deodara which have strong fragrance. The samples were collected 24 hours on 21st to 22nd of June and 10th to 11th of August in 2012. We used Escherichia coli and Staphylococcus aureus subsp. aureus which are ordinary bacterium in our daily life. The experiment results showed the volatile fragrance of C. japonica could resist the growing of both of bacteria in August, because of the fact that the hours of sunlight was 5.9 hour, however in the condition of 0.2 hour of sunlight in June, the resistant effects were not found on the both of bacteria. C. deodara did not show the antibacterial effects on the both of bacteria in June, but on the S. aureus subsp. aureus on the experiment in August, the antibacterial effects were found. These results suggested the antibacterial effects of volatile fragrance of trees were individually different and they were controlled by sunlight, seasonal, and individual condition.
Keywords: antibacterial effects, Cercidiphyllaceae japonicum, Cedrus deodara, Escherichia coli, Staphylococcus aureus subsp. aureus -
都市部の森林公園を活用した働く女性の保健休養の事例 Reviewed
竹内啓恵、上原巌
関東森林研究 65 ( 2 ) 237 - 240 2014.06
Authorship：Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)
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Healing effects of urban green environment Reviewed
UEHARA Iwao
中部森林研究 ( 62 ) 163 - 164 2014.03
Language：English Publishing type：Research paper (scientific journal)
In the psychological and counseling fields, many studies have been attempted by various methods. This research attempted
to examine the counseling effects utilizing urban green environment which were on the university campus and an urban park in
Setagaya region in Tokyo. I researched how university students’ mood changed in the building and in the outdoor green space on the
campus and also how clients’ conversation changed by regular counseling by walking in the urban park. Both results showed that
participants gained change of air effects by moving to unusual space from ordinary place, improving of their mood, consciousness of
accepting diversity of facing and solving problems, and so forth. These results suggested utilizing urban green environment could have
psychological and counseling effects.
Keywords: psychological effects, counseling, urban green environment, campus, urban park -
奥多摩演習林における野ネズミの生息地と微生息環境利用 Reviewed
小島裕貴・渡邉純子・上原巌・菅原泉・松林尚志・佐藤明
関東森林研究 65 205 - 208 2014.03
Authorship：Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)
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奥多摩のスギ人工林における強度な林冠疎開後の樹冠成長の推移 Reviewed
出口謙一、菅原 泉、上原 巌、佐藤 明
関東森林研究 64 ( 2 ) 17 - 20 2013.10
Authorship：Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)