岡田 準人

園芸実習を受講している女子短期大学生に対して、フラワーフェスティバルの見学が、園芸に対する嗜好性に及ぼす影響をアンケート調査により調べた。その結果、フラワーフェスティバルの見学が、園芸に対する嗜好性を実習開始時と比較して有意に高くすることがわかった。また、園芸実習を通した園芸に対する嗜好性も、実習開始時より有意に高くなることが明らかになった

園芸の実習を受ける女子短期大学生に対して、園芸の知識に関するアンケート調査を行った。その結果、実習を受ける前に比べて、実習を受けた後では園芸の知識の量が増加していることが明らかになった。また、園芸活動の嗜好性は、実習を受ける前の園芸の知識量に影響を及ぼしていることが明らかになった

エキウム・カンディカンスを蜜源とした2013年産ハチミツ（エキウム・カンディカンスハチミツ）の、2010年産および2012年産と比較した生産力の再現性を確認した。さらに、ニュージーランド産のエキウム・ブルガレを蜜源とするハチミツ（エキウム・ブルガレハチミツ）との品質比較（色、糖度）を行った

エキウム・カンディカンスを密源とした2013年度産ハチミツの品質を評価するために、ハチミツ中の混入花粉の同定および定量を行った

We made the survey to evaluate effects of practical experiences of environmental education using big tree in elementary school on teachers' perceptions. The survey was done at four elementary schools where a big tree was growing in the school grounds. We compared perceptions of teachers without practical experiences with perceptions of teachers with practical experiences. From the results obtained in this study, we understood that many teachers think of a big tree as local property and the imminent existence that always watches them, and had practiced the environmental education using imminent trees except the big tree. Therefore, we concluded that it was necessary to have some skills to affect the environmental education using trees, deepen a sense of closeness close to frequency to a big tree and find value widely for improvement of the practice will of teachers for the environmental education using the big tree. On the other hand, when there is not a big tree in school grounds, we understood that it was important that teachers practiced an environmental education using imminent trees. We thought that improvement of teachers' perceptions for the environmental education using trees and the knowledge is important.

The survey was conducted to evaluate the effect of environmental education, using big and tall trees in the period for integrated study in a lower secondary school, on the students' contact behavior with nature. In the month of May prior to the conduct of environmental education, the students were asked questions regarding their experiences of contact behavior with trees under several topics such as "climbing a tree" and "touching a bark." Thereafter, environmental education was conducted in the period for integrated study for a year. At the end of the learning, the same survey was conducted for both the students who selected the "Let's plant a tree nearby" course and those who did not, and the results were compared. Responses to the questionnaire showed that there was no significant difference between the students who chose the course and those who did not with regard to the frequency of contact behavior with nature, at the beginning of the learning. However, at the end of the learning, we discovered that those students who selected environmental education were more active in their contact behaviors than those who did not, which implicated that experimental study using big and tall trees would have a positive effect with regard to encouraging contact behavior with trees in everyday life.

We estimated the ability of aerial roots of Hedera helix 'Pittsburg' to adhere to the surface of 190mm-long wooden props with the cross section of 15mm X 15mm. On one side of the surface of a prop the 190mm-long ditch was made. The shape of the ditch was V-shaped (we called this type prop as V-prop) or rectangle (we called this type prop as R-prop). The width of the ditch in both V-prop and R-prop was 6mm or 9mm. For 84-85% of plants with V-prop, aerial roots grown toward the bottom of the V-shaped ditch, adhered to it and then extended longitudinally along it. And also for 68-74% of the p1ants with R-prop, aerial roots adhered to one of the L-shaped corners of a ditch and extended longitudinally along it. In some plants (9-23%) with either V-prop or R-prop aerial roots adhered to the flat surface of the lateral side or the bottom of the ditch and extended elliptically. These results showed that aerial roots prefer dark place such as the V-shaped valley or the L-shaped corners of a ditch, thus these results suggested the negative heliotropism of aerial roots of H. helix.

ヘデラ・ヘリックス'ピッツバーグのポット苗生産で茎誘引支持材にヒノキ材およびヒノキ材にヤシ殻繊維マットを貼り付けたものを用い,ヘデラ苗の生育への影響を見た。気根はヒノキ材区では,平面に付着して水平に伸長した。ヤシ殻材区では繊維の中に伸長したが,支柱に付着して頂端まで登攀した苗の比率は,ヒノキ材区が約70%であったのに対し,ヤシ殻材区は33%に留まった。支柱を用いない区では,茎が斜め上から水平に伸長し,隣の苗と絡まり,さらに,他のポットの鉢土に触れて気根を伸ばすものが見られ,ヘデラ・ヘリックスのポット苗生産では,ヒノキ材支柱を用いることで,効率的な生産が行えることが示唆された。

In this study, we surveyed the actual conditions of facade greening with climbing plants for detached houses in Kyoto City. The percentage of detached houses with exterior space was 85% (N=222), and that of detached houses without exterior space was 15% (N=222). The scenes using facade greening were categorized into 4 types, street type, drive type, garage type, and water way type. We found out that the forms of facade greening were classified into 33 types. The typical cases were concrete block or brick wall combined with fence (N=40), concrete block or brick wall combined with gate (N=38), concrete block or brick wall (N=33), and wall surface of house (N=20). As a result of analyzing the combination of forms and scenes, the functions of the landscaping were considered to be an important role in street, drive, and garage. Analyzing the combination of the characteristics of using plants, scenes, and forms, we found out the various combinations of the properties of climbing plants and facade. The most important thing about this study is that facade greening was carried out at the various forms and scenes in detached houses.

In this study, we surveyed the actual conditions of facade greening with climbing plants for detached houses in Kyoto City. The percentage of detached houses with exterior space was 85% (N=222), and that of detached houses without exterior space was 15% (N=222). The scenes using facade greening were categorized into 4 types, street type, drive type, garage type, and water way type. We found out that the forms of facade greening were classified into 33 types. The typical cases were concrete block or brick wall combined with fence (N=40), concrete block or brick wall combined with gate (N=38), concrete block or brick wall (N=33), and wall surface of house (N=20). As a result of analyzing the combination of forms and scenes, the functions of the landscaping were considered to be an important role in street, drive, and garage. Analyzing the combination of the characteristics of using plants, scenes, and forms, we found out the various combinations of the properties of climbing plants and facade. The most important thing about this study is that facade greening was carried out at the various forms and scenes in detached houses.

A questionnaire survey was made for the dwellers of detached houses with 'facade greening' to know actual situation of such greening practice in Kyoto City. 79% of respondents said that they planned and made facade greening on purpose. Within respondents (N=94) for the control work, those who had sensed the work with the burden was as little as 21%. Though respondents who carried out facade greening without considering the street landscape was 52% (N=100), respondents who have received the good evaluation from the dwellers of neighborhood occupied 64% (N=100). The consciousness of the dwellers to the street landscape was low. However by positively tackling the operation and maintenance, it was proven that the dwellers had judged that facade greening contributes to the improvement in the street landscape.

緑化された屋上の景観要素の違いが,屋上利用者に及ぼす心理的効果を明らかにするために,屋上パノラマ画像を用いたSD法による景観評価実験を行った。因子分析の結果,緑化された屋上の景観評価構造として,心理的,眺望体感的,自然認知的,屋上認知的,および視覚的評価因子の5因子が解釈された。因子得点を用いて,屋上およびその周辺の景観要素の違いが,屋上利用者の心理的評価に及ぼす影響を調べた結果,屋上パノラマ画像に占める緑視の割合が増加(相関係数R=O.627,有意確率p=0.016)あるいは周辺建物の割合が減少(相関係数R=-0.707,有意確率p=0.005)するに従って,心理的評価が高くなった。

ビデオ画像を用い,屋上の緑化形態の違いによる景観評価構造の特性を把握しようとした。屋上緑化の現地調査から緑化形態を分類して12事例(屋上庭園5事例,芝およびセダムの単一種植栽(以下,単植)とその他の多種混植植栽(以下,混植)による緑化6事例,無植栽1事例)を抽出し,評価グリッド法およびSD法を用いて景観評価実験を実施した。プロフィール分析において,セダム単植による屋上緑化の心理的評価が最も低く,無植栽の屋上よりさらに評価が劣った。一方,芝単植による緑化は,屋上庭園よりもさらに心理的評価が高かった。因子分析において,屋上庭園と単植および混植による緑化では,身体感覚的評価因子および自然認知的評価因子が共通の評価因子として抽出された。また,屋上庭園では,上述の2因子に加えて,視覚的評価因子が共通の評価因子として抽出された。

植栽間隔および誘引方法が,異なるメッシュ径のフェンスを被覆する実生3年生のムベの成長に及ぼす影響を,被覆率の測定により調べた。植栽間隔および誘引方法の違いが,ムベの成長に影響を与え,疎植区よりも密植区,そして,フォーク状区(水平誘引)よりも串状区(垂直誘引)の方が平均被覆率は高かった。メッシュ径の違いもまた,ムベの成長に影響を与え,メッシュ径小区の方がメッシュ径大区よりも平均被覆率は高かった。