巻号一覧
35 巻, 1 号
選択された号の論文の6件中1～6を表示しています
- |<
- <
- 1
- >
- >|
-
街路樹の防塵効果について辰巳 修三, 外山 健一, 石原 広1971 年 35 巻 1 号 p. 15-21
発行日: 1971/10/30
公開日: 2011/07/19
ジャーナル フリーIn the previous paper, the authors reported the differeences of the polluted materials in the street trees leaves between heavy and light traffic part. It was clearfyed that they were deposited on the leaves by various manner and, in heavy traffic, lower and side road parts of the tree crown, weredeposited more densely. This investigation was perfromed to clearly the dustproof effects of that tree leaves. The results obtained are as
follows:
1. The total polluted materials in the gauge, which was situated at 1 m height on the street tree zone, were maximum in Apri-May, and minimum in November-March. The authors presumed this was resulted of the abnormal leaffall phen-omenon of the camphor tree in Aipril.
2. Ash part of the polluted materials was the same result as total materials. Thr part, however, was changed seasonaly through the different manner from ash.
This was maximum in winter season.
This was presumed as a result of not only motor car gas but also the soot of heating fuel oil in winter season.
3. Lead contents, which were contained in motor car gas, were increased by followin7; order; winter>autumn>summer>spring.
4. The total polluted materials of a camphor tree leaves was estimated from the total leaf area of a tree, presumed about 1241.3×102 cm2.
In last summer (9/4 in september), there were 40 folds materials of early summer (5/22 inMay). This was presumed as a result of the differences of Ieaf growth form between early and last summer season.
5. A camphor tree was captured the materials more effectively in last summer than in early. It was the noticeble results that the polluted tar materials were highly captrued in last summer: 62% of the total materials at 1 m height on the tree zone.抄録全体を表示PDF形式でダウンロード (2480K) -
高橋 理喜男, 大沢 孝也1971 年 35 巻 1 号 p. 22-30
発行日: 1971/10/30
公開日: 2011/07/19
ジャーナル フリー大阪地方におげる大気汚染の植物に及ぼす影響を広域的に把握する目的で、1965年と1965年に1つはアンケート調査により、もう1つは野外調査によって、キンモクセでの開花状況をしらべた。それとともに、花芽形成の1つの条件とみられる炭水化物の含量を同植物の葉についてSomogyi法により測定した.一方1966年にはでチョウの黄葉期における葉の病的な褐変現象等について野外調査を実施した。
1) キンモクセイは近郊地帯においては正常な開花現象をみることができるが、都心部へ向うにつれて花着きが悪化していることがアンケート調査によって確かめられた。
2) さらに、2ケ年にわたっておこなわれた野外調査のの結果、花芽数は都心部の方が相対的に少く、定量的にも花着きの低下が認められた。同時に樹勢そのものも劣っていることが判明した。
3) キンモクセでの葉中災水化物含量は、大阪市域と近郊地域との間に相当はっきりとした差異が認められた。
以上の調査分析の結果から、大阪地方を広域的におおっている大気汚染がキンモクセfの同化機能の低下に関与し、それが樹勢の低下や開花不振をひきおこす原因の1つになっているのではないかと推察される。
4) でチョウの黄葉状況に関する調査結果を、大気汚染地域とみられる大阪市内とその周辺の市外区域とに分けてみると、落葉の遅速にはあまり差がみられない。しかし、汚染地域においては、イチヨウ本来の鮮かな黄葉期に達しないうちに、緑葉のまま異常な褐変症状を呈するケースが多く、とくに市街地街路樹についてその傾向が著しかった。
このような病的現象には、都市気候の特殊性に加えて、大気汚染による慣性的環境悪化がやはり何らかの形でかかわり合っているのではないかとの懸念が持たれる。抄録全体を表示PDF形式でダウンロード (2708K) -
亀山 章1971 年 35 巻 1 号 p. 31-40
発行日: 1971/10/30
公開日: 2011/07/19
ジャーナル フリーThe judgement of grass slopes conditions must be done ecologically, for grass slopes are to be constructed to improve the localities and the landscapes from the road.
The ecological judgement of grass slopes is equal to the judgement of the progression of succession. And succession must be judged from two viewpoints. One is from floristic composition and the other is from biological spectra.
Firstly, the author investigated the plant communities of the railwayside slopes at Chuosen line in Tokyo, which were constructed 80 years before, in order to be able to compare succession stages of the slopes, which were constructed 1.5, 3, and 5 years before. The table work after this survey shows 4 plant communities.(Table 1) 2 Miscanthus types, Imperata type, and Zoysia type.
Secondly, vegetation survey was practiced on the slopes (constructed 1.5, 3, and 5 years before), which were at first covered by imported species (Festuca arundinacea Schreber and Eragrostis curvula Nees) (Table 2, 3, 4) and native species (Zoysia japonica steud.).(Table 5) From these results the progression of succession was diagnosed.
The method by floristic composition was firstly proposed. The diagnoses were as follows:
1. The difference of the progression between the two method of construction, by imported species and by native species, could not be recognized clearly.
2. On the banking slopes the progression is faster than the cutting slopes.
3. Earlier, the cutting slopes were wetter, but after 5 years or so they became drier than the banking slopes.
Then the method by biological spectra was proposed.(Table 6) The biological spectra were expressed according to the RAUNKIAER'S dominancy forms and the species percentage (Sp%). The results were as same as the former's. I recognized the stable condition of grass slopes, when the Sp% of Th became under 20% and the number of species became over 20抄録全体を表示PDF形式でダウンロード (1208K) -
都市緑地の立体化に関する事例研究近藤 公夫, 太田 和佐子, 毛利 幸恵, 島内 由紀子1971 年 35 巻 1 号 p. 41-45
発行日: 1971/10/30
公開日: 2011/07/19
ジャーナル フリーResearching living habitations and feelings of users in roof gardens and balconies of apartment house, following results are conclused to establish fundamental designs of three dimensional urban greens, such as roof park.
1. Using percentages of roof garden on 9-stories buildings are about 5% of their population, and show a tendency to increase according to enrich ments of above gardens' facilities.
2. On their feelings, puposes of roof gardens' users are resting first, walking and speaking next; their hopes are beautifications with green and waterfirst, lawn next, wich playground level space.
3. About balconies of apartment houses, inhabitants hope gardening space first, children's play space next; the latter would be satisfyed in roof garden's planning on apartment houses.
4. Thus, depending upon tendsncies of apartment houses' increase, importances of roof garden become more; and depending upon those of urbanizations' progress, three dimensional designs on urban green must become to be studied.抄録全体を表示PDF形式でダウンロード (2755K) -
渡辺 達三1971 年 35 巻 1 号 p. 46-53
発行日: 1971/10/30
公開日: 2011/07/19
ジャーナル フリーIn our country, the spaces as the Squares come into existence generally in the feudal age Edo-Jida for the first time historically.
And it is thought to be corresponded to the formation of the feudalistic Gemteinde.
In this study, such the socio-economic basis of the existence of the Squares, and its formative and developmental process are tried to be studied.抄録全体を表示PDF形式でダウンロード (1554K) -
宮崎 是1971 年 35 巻 1 号 p. 54-57
発行日: 1971/10/30
公開日: 2011/07/19
ジャーナル フリーPDF形式でダウンロード (6084K)
- |<
- <
- 1
- >
- >|