All issues
Successor
Volume 31 (1967 - 196･･･
- Issue 4 Pages 2-
- Issue 3 Pages 2-
- Issue 2 Pages 2-
- Issue 1 Pages 2-
Volume 31, Issue 3
Displaying 1-4 of 4 articles from this issue
- |<
- <
- 1
- >
- >|
-
Akira HOMMA, Tetsuzo RAI1968 Volume 31 Issue 3 Pages 2-10
Published: February 29, 1968
Released on J-STAGE: July 19, 2011
JOURNAL FREE ACCESSLandscape architects grow different types of plants usually in the shade of trees or in the northern side of buildings in order to create shady sourroundings.
There are many terminologies such as “Heliophytes. Helio-Sciophytes, Sciophytes”; “Light plants, Shade plants, Shade-tolerant plants” etc., which signiby different types of plants grown in varied ecological light intensity. These plants, especilly plants for landscaping have not been studied in detail.
In this experiment a search has been made to Find out shade-tolerant or shade-loving plants.
Twelve species of ground cover plants (Table 5) were grown in a desingned experimental plot (Fig. 1).
From the present expermental data (Table 6, Fig 2), twelve species of ground cover plants have been classified into four groups as follows:
I High-grade-sun-loving plants, designated as “High-grade-sun-loving plants”. These plants cannot grow at all in the slight shade.
For example, Tifton 328 Bermuda grass, Manila grass (HIMEKORAISHBA), st. Augastingrass.
II Sun-loving plants, designated as “Sun-loving and slight-shade-tolerant plants”. These plants can grow in the slight shade.
For example, Kentucky 31 fescue, Orchard grass.
III Slight-shade-loving plants, designated as “Slightshade-loving plants”. These plants cannot grow in the dense shade.
For example, Dichondra repens (AOIGOKE), Dichondra micranta (Dichondra), Ranunclus repens (HAIKIMPOGE), Sedum Makinoi (MARUBAMANNENGUSA), Sedum lineare (ONOMANNENGUSA).
IV Slight-shade-loving plants, designated as “Slightshade-loving and danse-shade-tolerants plants”. these plants can grow in the dense shade.
For example, Japanese spurge (FUKKISO), Reinekia carnea (KICHIJOSO).View full abstractDownload PDF (1950K) -
Relations of the construction of Historic Park “Kudaradera Old Temple” and changes of. inhabitant's feelingsKimio KONDO1968 Volume 31 Issue 3 Pages 11-18
Published: February 29, 1968
Released on J-STAGE: July 19, 2011
JOURNAL FREE ACCESSThis study is an analyse on relations of the cons truction of a historic park and inhabitants' feelings.
These are the knowledge on historic park, its valuation, interests on it, inhabitant's educational condition, using frequencies, using purposes, the level of conservation and the conservation types, as mentioned in first report.
In this study above interview's results are relatively analysed, as a relation of the knowledge of historic park and the irvaluation etc. or a relation of knowledge valuation complex and their interest etc.
As results, inteviews' answers are analysed in about 10, 000 types, and the total of above analysing relations are accounted about 10, 000 patterns.
At present, following conclutions are resulted, as to have clear relations.
a) educational conditions and proposes of conservation types.
b) knowledges on park and every replys.
c) valuations of parklike arrangement of historic spot and using purposes and proposes of conservation types.
d) interests on historic spot and proposes of conservation levels and types, and using purposes.
e) using frequencies and conservation levels' proposes.
f) using purposes and conservation types' proposes.
g) valuations conservation types complex and knowledges and interests.
h) knowledges-intrests complex and valuations.
i) interests-coservation types complex and using purposes.
j) interest-using purposes complex and conservation levels.
k) interest-conservation levels complex and conservation types.
Because of great mass of analysis patterns as about ten thousands, further problems will not be able to studied without computer, even in this simple study.View full abstractDownload PDF (1114K) -
Kiyoshi KITAZAWA1968 Volume 31 Issue 3 Pages 19-25
Published: February 29, 1968
Released on J-STAGE: July 19, 2011
JOURNAL FREE ACCESSThe dormant period of the deciduous trees is endowed with many useful elements for transplanting, trimming, fertilization, propagation, collection etc. in the landscaping work, but the winter time that has little necessary elements for the identification of trees, for instance, flowers, leaves, fruits, is notwithstanding furnished with much difficulties for the identification of the species of them.
Therefor, an trial to identify them has been made by the use of punch cards mainly based upon the winter bud. As the identification elements of trees based mainly upon the winter bud, there are buds, twigs, leaf scars, fibro-vascuiar marks, lenticels, piths etc., and these, being combinated, make up 18 identification items, taken in the punch cards. Further, the main items: A (insertion of the winter bud in the twigs), B (insertion style of the leteral bud in the twig), D (shape of the winter bud), E (scale of the winter bud), H (shape of the leaf bud, ) I (disposition of fibre-vascular in the leaf scar) are illustrated and described, and others are only described.
This method of identification is practiced as follows: in the case of Platanus orientalis L., for example, being alternate and spiral in the item A, a and are kept and others are taken away, and by putting the stick into the hole from above and drawing the cards out, the required including Platanus orientalis L. are to be obtained. Out of these cards, using the characteristics of spindle shape in the item E, ring form of the leaf scar in the item H and so on, the repeated putting in of the stick will identify Platanus orientalis L. mechanically.
These operations need, of course, not be started from the item A to B, C and SD on in order, but may be begun D or E etc. The operation being simple and the repetition being able to hit the mark, will give a good way for the identification of the winter deciduous trees.View full abstractDownload PDF (3910K) -
Hironobu YOSHIDA, Takeshi HISANO1968 Volume 31 Issue 3 Pages 26-29
Published: February 29, 1968
Released on J-STAGE: July 19, 2011
JOURNAL FREE ACCESSGermination tests of gtasses under several conditions of the sown densty and the water supply were carried out to make sure of the relation between the sown density and the germinating rate.
The results were obtained as follows.
The germinating rate in high density plots with insufficient water went down significantly and moreover, the germination was delayed for 3 days, in comparison with sufficient water plots.(Table 1, 2 and Fig. 1). This was certified also by the water content per oneseed.(Table 3, 4 and Fig. 3).
Those phenomena were considered as the results of the scramble for water.
Here, the authors introduce the following formulae on the relation between the sown density and the germinating rate.
_??_ (1)
where,
r: germinating rate
ρ: sown density
h: quantity of water
This formula explains that the augmentaion of the germinating rate is inversely proportionate to the increase of the sown density at a certain water supply.
The following formulae are obtained by working out this differential epuation (1).
log r=-a·logδ+log R (2)
or,
r=R·ρ-a (3)
moreover, with avalable space per one seed (δ) instead of density (ρ), Formula (3) is shown as follows;
r=R·δa (4)
where, the constant (a) is determined by water condition, and the constant of integration (R) is the maximum germinating rate under sufficient water condition.
The r-ρ or r-δ curves are shown in Fig 4 and 5 in logarithmic diagrams. The character of these curves is explained in Fig 6, 7 and 8.
In conclusion, these results are noteworthy for the determination of the sown density of grasses.View full abstractDownload PDF (478K)
- |<
- <
- 1
- >
- >|