Journal of Geography (Chigaku Zasshi)
Online ISSN : 1884-0884
Print ISSN : 0022-135X
ISSN-L : 0022-135X
Volume 78 , Issue 6
Showing 1-13 articles out of 13 articles from the selected issue
  • Takahiro SATO, Atsushi TOKUHIRO
    1969 Volume 78 Issue 6 Pages 379-390
    Published: December 25, 1969
    Released: November 12, 2009
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  • Masataka HATANO
    1969 Volume 78 Issue 6 Pages 391-402
    Published: December 25, 1969
    Released: February 25, 2010
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  • Nobuo TAKAHASHI
    1969 Volume 78 Issue 6 Pages 403-414
    Published: December 25, 1969
    Released: November 12, 2009
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    Au japon l'urbanisation se progresse intensément a présent en conséquence de la concentration de la population. Nous arrivons au moment de la formation de Mégalopolis, les villes se rejoignant les unes les autres pour former des nebuleuses urbaines. Par contre, les terrains agricoles sous la protection de la loi agricole sont forcés de se transformer en terrains à bâtir, emplacements d'usines et routes etc., C'est le phènomène de diminution de la surface agricole que montre le passage fondamental, de l'utilisation rurale à l'utilisation urbaine du sol.
    Cet article essaie d'élucider les degrés d'urbanisation au point de vue de l'utilisation du sol au japon. L'auteur utilise principalement les Statistiques des Terrains cultivés (Ministère de l'Agriculture), et les Statistiques des Emplacements d'Usine (Ministere du Commerce et de l'Industrie) comme matériaux, et it les classe par préfecture.
    On croit pouvoir tirer les quelques conclusions suivantes.
    1). La diminution des surfaces agricoles augmente depuis l'an 1960 ou 1961 partout au japon reflétant le développement économique accéléré. Par conséquent l'urbanisation au point de vue de l'utilisation du sol progresse. Il y a beaucoup de différences régionales au point de vue de la diminution de la surface agricole. Elle est rapide surtout dans les préfectures de Tokio, Aichi (Nagoya) et Osaka, et ensuite dans les préfectures avoisinantes.
    2). Les terrains à bâtir et les emplacements d'usines de la surface soustraite à l'agriculture occupent la majorité. La diminution plus rapide de la surface agricole depuis 1960 est causée en grande partie par l'augmentation des emplacements et d'usines. Cependant ces dernières années l'accroissement des terrains industriels tend à se ralentir par suite de la stagnation des investissements industriels. En conséquence la part des terrains consacrés à la construction s'accrort relativement dans toutes les régions.
    3). Les surfaces industrelles ne s'accroissent pas seulement aux dépens du terrain agricole, mais aussi des forêts, des terres incultes et les terrains remblayés sur la mer ; et l'urbanisation à cause de l' activité industrielle se développe non seulement dans les régions agricoles, mais aussi dans la mer et sur les terrains en pente.
    4). L'auteur a classé les régions à la fois selon l'importance de la diminution des surfaces agricoles et selon l'affectation que recoivent les terrains soustraits á l'agriculture (emplacements à batir, emplacements d'usines, etc, ). On peut constater ainsi le degré d'urbanisation au point de vue de l'utilisation du terrain.
    Dans les régions de grandes villes, les capitaux s'accumulent, et les grandes villes renforcent leur fonction de centres administratifs par rapport à leurs environs et absorbent beaucoup de population en âge de travailler de tout le pays, La population en provenance d'autres régions demande des emplacements de logements dans les régions de grandes villes, surtout les préfectures de Tokio, Kanagawa (Yokohama), Osaka et Fukuoka dans les quelles la diminution de la surface agricole est rapide, ces prefectures devenant des zônes d'habitat presque continu. Par consequent les regions ci-dessus se trouvent au sommet du degré de développement de l'urbanisation au point de vue de l'utilisation du sol.
    5). Dans les autres préfectures de la côté de Pacifique entre Tokio et Kobé, on constate un développement intense de l'utilisation urbaine des sols, consacrée principalement aux installations industrielles.
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  • Sumio SAKAGAMI, Sumio MINAMIKAWA, Mikio KAWASHIMA
    1969 Volume 78 Issue 6 Pages 415-421
    Published: December 25, 1969
    Released: November 12, 2009
    JOURNALS FREE ACCESS
    The so-called Matsumae Group which is widely distributed in the southwestern part of Hokkaido, is correlated with the Hidaka Group of the central part of Hokkaido. Recently, Middle Carboniferous and Upper Jurassic fossils were discovered from some of the limestones interbedded in the Matsumae Group. Namely, (1) HASHIMOTO and SHIMADA (1960) discovered a Diphyphyllum-like coral from the limestone near Oshamanbe. This coral probably indicates the Middle Carboniferous age. (2) HASHIMOTO and IGO (1961) reported Hikorokodium sp., Milleporella sp., Thecosmilia sp., Montlivaltia? sp. and Thanznasteria? sp. from a limestone interbedded in the same limestone. These fossils may be correlated with the fauna of the Upper Jurassic Torinosu Group. (3) MINATO and YAMAMOTO (1961) studied the crinoid stems, pelecypods, gastropods, hydrozoans, smaller foraminifers and calcareous algae found from the Kamiiso Limestone. Among those fossils, in particular, the calcareous algae was identified with Mesophyllum, a genus which is known only from the post Tertiary. However, they considered that the limestone that yielded Mesophyllum and other fossils is probably Upper Jurassic in age from lithologic and stratigraphic stand points. (4) MINATO and KONOYA (1963) reported Fusulinella sp. and Chaetetes sp., both which indicate the Middle Carboniferous from the limestone of the Matsumae Group at Ohira-yama in Kaminokuni-mura. And (5), the Middle Carboniferous fossils discovered by YOSHIDA and YAMAGUHI (1967) from several localities near the northeastern part of Daisengen-dake were studied paleontologically by MINATO and ROWETT (1967). (Nos. (1) - (5) refer to the same numbers in Fig. 1)
    About ten years ago, one of the present writers, SAKAGAMI collected a small block of black muddy limestone with abundant and very small pelecypod fossils from the Kamiiso Limestone in the Garo quarry. Dr. Ichiro HAYASAKA suggested that the small pelecypods may be a species of Inoceramus because the shells show the prismatic layer-like structure characteristic of the genus.
    In the summer of 1968, the writers collected limestone rock samples at intervals of about 50 m. in the Garb quarry along the Garonosawa River. These samples were subjected to a study of their conodont fauna and 22 species (10 species indeterminable) were discriminated from 11 localities. All of the identified conodont species are known from the Middle to Upper Triassic of North America and Europe, and in particular, Epigondolella abneptis and Epigondolella bidentata indicate the Late Triassic age.
    In the number of individuals in a species, Epigondolella abneptis is predominant, namely 104 individuals were found from about 1kg. of rock sample from Loc. 09, but at Loc. 003 and Loc. 21 none were recognized. In the constitution of species from each locality, 18 species (including 6 indeterminable species of Hindeodella) were found from Loc. 004, 5 from Loc. 02, 4 from Loc. 09, 3 from Loc. 03, 2 from Loc. 08 and 1 species from each of the other 6 localities.
    Recently, Triassic conodonts were reported from some localities in the Far East. Of them, ISHII and NOGAMI (1966) reported 8 species of conodonts from Bukit Kechil, west Malaysia, and amount them three, Epigondolella abneptis (as a confer), Enantiognathus ziegleri and Hindeodella triassica are common to the species from the Kamiiso Limestone. NOGAMI (1968) studied the Triassic conodonts from Timor, Malaysia and Japan and recognized 7 conodont assemblages.
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  • Tsuguo SUNAMURA
    1969 Volume 78 Issue 6 Pages 422-433
    Published: December 25, 1969
    Released: November 12, 2009
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    Tsunamis of 1896 and of 1933 which attacked the Sanriku coasts of Japan took a heavy toll of human lives. This paper discusses the relationship between human damage due to the tsunamis and their run-up height, in comparison with the damage of dwelling houses. Figures 5 (a), & 5 (b), in which symbol _??_ and _??_ are the mortality rate and the percent-age of destroyed houses respectively, indicate that the mortality rate becomes higher with increasing tsunami height. Figure 7 shows the relationship between the percentage of refugees from the tsunamis and tsunami height, and explains that the former decreases with the increase of the latter.
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  • Tatsuro MATSUMOTO, Seiya UYEDA
    1969 Volume 78 Issue 6 Pages 434-438
    Published: December 25, 1969
    Released: November 12, 2009
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  • [in Japanese], [in Japanese]
    1969 Volume 78 Issue 6 Pages 438-439
    Published: December 25, 1969
    Released: November 12, 2009
    JOURNALS FREE ACCESS
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  • [in Japanese]
    1969 Volume 78 Issue 6 Pages 440-441
    Published: December 25, 1969
    Released: February 25, 2010
    JOURNALS FREE ACCESS
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  • [in Japanese]
    1969 Volume 78 Issue 6 Pages 442-443
    Published: December 25, 1969
    Released: November 12, 2009
    JOURNALS FREE ACCESS
    Download PDF (476K)
  • [in Japanese]
    1969 Volume 78 Issue 6 Pages 443-444
    Published: December 25, 1969
    Released: November 12, 2009
    JOURNALS FREE ACCESS
    Download PDF (469K)
  • 1969 Volume 78 Issue 6 Pages 444-445
    Published: December 25, 1969
    Released: November 12, 2009
    JOURNALS FREE ACCESS
    Download PDF (390K)
  • 1969 Volume 78 Issue 6 Pages 445
    Published: December 25, 1969
    Released: November 12, 2009
    JOURNALS FREE ACCESS
    Download PDF (162K)
  • Horst BRONNY
    1969 Volume 78 Issue 6 Pages Plate1-Plate2
    Published: December 25, 1969
    Released: November 12, 2009
    JOURNALS FREE ACCESS
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