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Volume 32 (1968 - 196･･･
- Issue 4 Pages 2-
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Volume 32, Issue 2
Displaying 1-4 of 4 articles from this issue
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Tadashi KUBO, Takeo UESUGI1968 Volume 32 Issue 2 Pages 2-13
Published: October 29, 1968
Released on J-STAGE: July 19, 2011
JOURNAL FREE ACCESS -
Kimio KONDO1968 Volume 32 Issue 2 Pages 14-19
Published: October 29, 1968
Released on J-STAGE: July 19, 2011
JOURNAL FREE ACCESSIn planning studies of recreations, in greens, thier dynamic researches should be necessary; above all, year-changes of recreational mass must give us fundamental suggestions on this subject.
The writer appoints following problems, through a future study of recreational demands at natural resort “Nishi-Biwako Area”.
To survey above problem needs such researches as approach factors of resort, physical and mental conditions of user, and their population distributions etc.
This case study conclusions that mass of user at above area in 1975 is twice of that in 1967, as results of 1.4 times of population, 1.1-1.2 times of tour, mass 0.8 times of ecological approach distances.
Besides, such resort development under planning in Shiga prefecture government, as to be sited near “Biwako-Ohashi” with the space of 2km3 and the capacity of 20, 000 users may add about 1 million visitors on above 4 millions in 1975.
The writer considers the meaning of this study, to propose a user's future survey method on the theory, that the possibility of recreational tour depends on such resort's conditions as attractivities and approaches, and such user's various living problems as mental and physical.View full abstractDownload PDF (1959K) -
On the salt tolerance of bentgrasses and bluegrassesFumio KITAMURA1968 Volume 32 Issue 2 Pages 20-24
Published: October 29, 1968
Released on J-STAGE: July 19, 2011
JOURNAL FREE ACCESS1. As a part of the series on the salt tolerance of lawn grasses, the experiments were made to investigate the salt tolerance of bentgrasses (highland bentgrass and seaside betgrass) and bluegrass (Kentucky bluegrass and annual bluegrass)
2. The grasses were grown in sand culture at various concentrations of NaCl. The growth of bentgrasses become worse at Cl 1, 000ppm. and a few plants died. In the 5, 000 ppm application, almost all plants died. The growth of bluegrasses was somewhat checked at Cl 1, 000ppm, and became worse at Cl 5, 000-10, 000 PPm. In the 5, 000-10, 000ppm application, most plants died, and the rest seemed to live hardly.
3. With increasing concentration of Cl, the grasses were dwarfed, and the number of stems, leaves, and roots reduced.
4. As a rule, bluegrasses were conparatively better on the salt tolerance than bentgrasses, while they were considerably weak to salt solution in comparison with ryegrasses and fescues. Among the grasses, according to salt tolerance, they were arranged as follows:
Kentucky bluegrass > annual bluegrass
> seaside bentgrass > highland bentgrass.View full abstractDownload PDF (591K) -
Katsuyuki MINOUCHI1968 Volume 32 Issue 2 Pages 25-30,31
Published: October 29, 1968
Released on J-STAGE: July 19, 2011
JOURNAL FREE ACCESSRoji or a tea-garden is the typical Japanese garden in which natural light is used to create an ideal world of shadow and light. The writer investigated the light qualities of the tea-house and Roji in order to obtain data which might be useful to create spaces for appreciation of delicate light.
Illumination was measured by means of two photometers at the same time putting one at a given place and the other at the standard point in the air. Data was obtained from five tea-houses and gardens of different style.
Results: Indoor
1) On clear middays the indoor illumination was always lower in summer than in autumn in spite of the higher outdoor illumination in summer.
2) The indoor illumination was not over 34lx when the paper sliding screens were shut on the middays.
3) The writer observed, during an actual tea-ceremony of a very authentic kind in autumn, that natural lihgt was delicately controlled with bamboo blinds hanging on sliding screens, or with a prop. This was in accordance with the rules of a classical teabook.
Results: In Roji
1) Rhythm of shadow appered in sequence, e. g. gate→resting house→large tree→wash-basin under thick shrub.
2) Relative illumination along the path was higher in autumn after trimming than in summer when foliage was fresh.
3) Consideration of light adaptation for the eye was observed at the connecting space between the Roji and the tea-house.
The writer believes that landscape architects today should be more concerned with these delicate light qualities and their subtle effect on spaces. This awareness can be seen in our traditional garden.View full abstractDownload PDF (900K)
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